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Physical Description:

glass (overall material)

carbon (overall material)

Measurements:

overall: 5 3/4 in x 3 in; 14.605 cm x 7.62 cm

Object Name:

Light Bulb

ammeter

incandescent lamp

Date made:

ca 1890

Credit Line:

from Elisha Thompson

ID Number:

EM.325794

Accession number:

258274

Catalog number:

325794

See more items in:

Work and Industry: Electricity

Exhibition:

Lighting a Revolution

Exhibition Location:

National Museum of American History

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a8-71b3-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_996162

Author:

Baekeland, L. H. (Leo Hendrik), 1863-1944  Search this

Collection Creator:

Baekeland, L. H. (Leo Hendrik), 1863-1944  Search this

Extent:

1 Item (6.0" x 3.5".)

Container:

Box 19, Folder 3

Type:

Archival materials

Biographies

Diaries

Place:

Yonkers (N.Y.) -- 1900-1910

Date:

1914 March 12-1914 August 16

Scope and Contents:

Inscription on flyleaf: "I / Journal of / Dr. L.H. Baekeland / Yonkers, NY [sic] / March 12, 1914 / to August 16, 1914." The diary details Baekeland's daily activities. He writes often of his visits and discussions, and the subjects of correspondence he has written and received. It sheds light on the use and distance of travel by automobile in the early twentieth century. In the notes, Baekeland explains increasing time spent in the laboratory in 1914.

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Topic:

Laboratories  Search this

Automobiles -- 1900-1910  Search this

Tourism  Search this

Family -- 20th century  Search this

Genre/Form:

Biographies

Diaries -- 20th century

Collection Citation:

Leo Baekeland Papers, Archives Center, National Museum of American History, Smithsonian Institution

See more items in:

Leo H. Baekeland Papers

Leo H. Baekeland Papers / Series 4: Diaries

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep841a28a05-5ecb-4946-bf3d-ba4b1d4ebb2b

EDAN-URL:

ead_component:sova-nmah-ac-0005-ref304

Author:

Baekeland, L. H. (Leo Hendrik), 1863-1944  Search this

Collection Creator:

Baekeland, L. H. (Leo Hendrik), 1863-1944  Search this

Extent:

1 Item (6.0" x 3.5")

Container:

Box 20, Folder 7

Type:

Archival materials

Diaries

Date:

1923 November 15-1924 July 8

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Topic:

Family -- 20th century  Search this

Genre/Form:

Diaries -- 20th century

Collection Citation:

Leo Baekeland Papers, Archives Center, National Museum of American History, Smithsonian Institution

See more items in:

Leo H. Baekeland Papers

Leo H. Baekeland Papers / Series 4: Diaries

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep8619c4a16-9c78-4d6a-8e30-29bb7c1ddc32

EDAN-URL:

ead_component:sova-nmah-ac-0005-ref326

Author:

Baekeland, L. H. (Leo Hendrik), 1863-1944  Search this

Collection Creator:

Baekeland, L. H. (Leo Hendrik), 1863-1944  Search this

Extent:

1 Item (6.0" x 3.5")

Container:

Box 21, Folder 6

Type:

Archival materials

Diaries

Date:

1931 December 17-1932 May 30

1931 December 12 - 1932 May 30

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Topic:

Family -- 20th century  Search this

Genre/Form:

Diaries -- 20th century

Collection Citation:

Leo Baekeland Papers, Archives Center, National Museum of American History, Smithsonian Institution

See more items in:

Leo H. Baekeland Papers

Leo H. Baekeland Papers / Series 4: Diaries

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep810727416-dabb-4523-a3db-bf58e066dd33

EDAN-URL:

ead_component:sova-nmah-ac-0005-ref339

Author:

E. Howard Clock Co.  Search this

Collection Creator:

Howard, Edward  Search this

E. Howard Clock Co.  Search this

Extent:

1 Volume (Ink on paper, 11.4" x 8.8".)

Container:

Box 14

Type:

Archival materials

Text

Volumes

Ledgers (account books)

Place:

Massachusetts -- 19th century

Boston (Mass.) -- 19th century

Date:

November 1, 1889 - April 1, 1891

Scope and Contents:

(AC*0776.07.10)

Listing of clock orders.

Collection Restrictions:

The collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Topic:

Clock and watch making  Search this

Clock and watch makers  Search this

Clocks and watches  Search this

Genre/Form:

Ledgers (account books) -- 1840-1900

Collection Citation:

E. Howard Clock Company Records, Archives Center, National Museum of American History, Smithsonian Institution

Sponsor:

Scanning of selected volumes supported by the generous assistance of the National Clock and Watch Museum, Columbia, Pennsylvania.

See more items in:

E. Howard Clock Company Records

E. Howard Clock Company Records / Series 7: Clock Orders

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep8dfd04629-6285-4387-97fd-2c428377f6e2

EDAN-URL:

ead_component:sova-nmah-ac-0776-ref28

Creator:

Eisler Engineering Company.  Search this

Names:

General Electric Company  Search this

Incandescent Lamp Manufacturer's Association.  Search this

Westinghouse Electric & Manufacturing Company  Search this

Eisler, Charles, Jr.  Search this

Extent:

30 Cubic feet (49 boxes, 25 oversize folders)

Type:

Collection descriptions

Archival materials

Photographs

Scrapbooks

Blueprints

Correspondence

Place:

Newark (N.J.)

Hungary

Date:

1885 - 1988

bulk 1920-1950s

Summary:

Records document Charles Eisler, a Hungarian immigrant who was a skilled mechanic and engineer and his company, Eisler Engineering Company of Newark, New Jersey, which manufactured equipment for producing electric lamps, television and radio tubes, welding equipment and laboratory equipment.

Scope and Contents:

The bulk of the materials date from the 1930s to the 1950s and document Charles Eisler's contributions to the modern lamp making industry. There is considerable personal information documenting Eisler and his family, and his connection to his native Hungary. The collection is divided into 9 series: personal materials; business materials; employee records, operating records; diagrams and drawings; litigation and patent records; photographs; and scrapbooks.

Series 1, Personal Materials, 1944-1970, is divided into six subseries: Passports and Naturalization Certificate, 1910-1970s; Photographs, 1912; Chronological Correspondence, 1944-1970; Alphabetical Correspondence, 1941-1969; Family and Friends Correspondence, 1956-1966; Vacation Information, 1951; Financial Information, 1960-1967; and Medical Bills and Information, 1963-1967.

There are several passports (United States and German) for Eisler and his United States naturalization certificate of 1910. The photographs, 1912, are from Eisler's friend, Ed Korn. The photographs depict an airplane that Eisler created drawings for and two individuals, Bert Berry (parachutist) and Tony Januss, a pilot at Kinloch Field, St. Louis, Missouri.

The chronological correspondence, 1944-1970, is arranged chronologically. It contains letters about Hungarians and Hungarian issues; invitations to social events and speaking engagements; thank you letters; letters of condolence; donations; birthday greetings; and club memberships. Eisler was active in the Newark, New Jersey, Hungarian community. He donated equipment, clothes, and money to a variety of organizations that assisted Hungarians in the United States and in Hungary. Some of the correspondence was written by Mrs. R. Testa, secretary to Charles Eisler.

The alphabetical correspondence, 1941-1969, is arranged alphabetically. It consists of letters documenting such issues as stock in Eisler Engineering Company, personal purchases of Eisler's at the Ivanhoe Lobby Gift Shop by the Sea Hotel, and "Help the Suffering Hungarians" organization (1956-1961). This includes canceled checks from donors, specifically Operation Mercy to assist refugees from Budapest. Additionally, there is correspondence and itemized price lists for food and clothing for Hungarians. Of note is some Raritan Yacht Club (R.Y.C.) of Perth Amboy, New Jersey, materials. There is a R.Y.C. Duffle Bag newsletter, February, 1964. Eisler was a member of R.Y.C.

Family and friends correspondence, 1956-1966, includes letters and postcards from family and friends, mostly in Hungarian. Topics discussed include sending food, clothing, hearing aids, and medicine to Hungarian refugees; Christmas packages; emigration; and U.S. Relief Parcel Service receipts.

Vacation information, 1951, consists of one file folder of documentation of airline tickets, baggage tickets, tour itineraries, receipts from hotels, letterhead from hotels, and itemized lists of purchases for several trips Eisler made. Airlines ephemera represented include Pan American World Airways System; Air France; British Overseas Airways Corp; Trans World Airlines, Inc; and Eastern Airlines.

Financial information, 1960-1967, contains investment securities (certificates) information for Massachusetts Investors Trust; consolidated checking account information; lists of personal donations, personal income, and savings accounts. Eisler's personal donations varied greatly, both in amount and in the type of organization—American Hungarian Studies Foundation at Rutgers, Father Flanagan's Boy's Home; and the Jewish Community Council of Essex County, New Jersey.

Medical Bills and Information, 1963-1967, consists mostly of bills from doctors for services rendered.

Series 2, Business Materials, 1885, 1931-1985, is divided into seven subseries: correspondence, general files, financial information, World War II boards and regulations, real estate holdings and investments, articles, and Kahle Engineering.

Correspondence, 1946-1971, is arranged alphabetically by surname or company name. It contains a variety of issues—real estate, accounting, legal representation, and tenants. Attorneys Kessler and Kessler handled Eisler vs. General Electric Company. There is correspondence about meetings, depositions, and reviewing documents before filing. The tenant information includes assignments and agreements between individual tenants and the landlord, Lesire Corporation, which Eisler owned.

General Files, 1931-1985, contains files arranged alphabetically on a variety of topics.

Financial Information, 1931-1945, is mainly comprised of Treasury Department and Internal Revenue correspondence, and income tax documentation

World War II Boards and Regulations, 1942-1946, contain information about manpower, labor, and production during World War II for the manufacturing industry. The National War Labor Board contains wage rates and audit information for Eisler Engineering. The Manpower Commission established the total manpower allowance for Eisler Engineering and other companies. It set specific quotas for the number of male employees permitted. The War Production Board material includes a plant report of operations. It describes the product being made and categorizes the percentage of "war" versus "civilian" work. The War Department Plant Protection Division contains notes and recommendations for Eilser Engineering Company to implement.

Real Estate Holdings and Investments, 1932-1980, consists mainly of tax and stock returns and income information and cancelled notes for collateral with the Lesire Corporation. The record of real estate, 1952-1974, contains ledger sheets for seven separate properties with the name of the property, improvements if any, and address: Farm Flagtowne, Neshanic, New Jersey; 733 S. 12th Street, Newark, New Jersey; 735-737 S. 12th Street, Newark, New Jersey; 738-758 S. 13th Street, Newark, New Jersey; 16 N. Salem Street, Dover, New Jersey; 269 E. Blackwell Street, Dover, New Jersey; and Lad Construction. The ledger sheets also include a loan record with rents and mortgage receivable information. The Avenue L files document a factory building owned by Eisler in Newark, New Jersey. The files contain correspondence, receipts, and bills for work done on the building in preparation for sale.

Articles, 1885-1962 (not inclusive) includes four articles relating to the topic of electricity.

Kahle Engineering, 1960-1982, contains Dun and Bradstreet analytical reports from 1960 to 1964 and interoffice correspondence with Steven Logothetis, an employee of Kahle Engineering, interoffice memos, credit profiles, notes, mortgage papers, and information sheets for specific properties for purchase at public auction for the period 1979-1982.

Series 3, Employee/Personnel Records, 1940-1988, is divided into ten subseries: personnel files; accident reports; lists of employee names; service years and anniversaries; union (IUE AFL-CIO) agreements; benefits (health and pension); deceased employees; payroll information; electrical license course; Department of Labor; and miscellaneous.

The bulk of this series consists primarily of employee personnel files from the 1940s to 1960s. Arranged alphabetically by surname, the files contain employee record cards, employee applications, in some instances photographs (head shots), tax withholding exemption certificates, medical forms, union dues information, union steward reports detailing grievances and appeals, correspondence, recommendations, unemployment benefit payments, workers compensation, paychecks, and applications for United States citizenship and visa requests. The employee record cards capture the employee name; address; social security number; department; occupation; title; clock number; phone number; race; marital status; date of birth; number of children; stating rate; increases; vacation taken; country of birth; entry into the United States; naturalized and, if so, when and where; former employees and any union grievances. It provides a comprehensive view of the employee composition of the company.

The accident reports, 1958-1988, are arranged chronologically by year and then further arranged alphabetically by employee surname. These accident claim forms used by Eisler Engineering Company are for the New Jersey Manufacturers Casualty Insurance Company of Trenton, New Jersey. Additionally, there are blank State of New Jersey accident forms. There is some correspondence about specific claims and employees. There is one file folder documenting injuries and illness, 1971-1978. It consists of Occupational Safety and Health Administration (OSHA) forms completed by Eisler Engineering. They provide a summary of the types of injuries and illnesses, number of lost work days, number of cases and a supplementary record of occupational injuries.

Lists of employee names, 1957-1977, provides information on employees who left employment, were laid off, owed union dues; years of service to the company, birthdays, addresses, and job descriptions.

Service years and anniversaries, 1955-1970, provides the employee name, when employment began, years of service and if a service pin was awarded.

Union (IUE AFL-CIO) agreements, 1942-1957 contain union contracts and agreements between Eisler Engineering Mutual Employees Association, Inc., and the International Union of Electrical, Radio and Machine Workers (IUE-AFL-CIO).

Benefits (health and pension), 1957-1967, contains information on dental benefits, hospital service plans, Group Health Insurance (GHI) Inc., claim forms for medical care insurance, and the annual report of District 4 IUE, AFL-CIO Welfare Plan for 1957.

Deceased employees, 1946-1951, consists of form letters with the employees name, address, next of kin, date of death, and the amount of unpaid salary due.

Payroll Information, 1940-1973, includes deduction of wages or salary forms for union dues, plans for enrolling in the U.S. Savings Bond program, canceled payroll checks, forms for requesting vacation, and bonus and merit increases for employees.

Electrical License Course, undated, includes homework assignments, tests, and answers to questions, in lessons/courses on: compound generators, DC (direct current) self-excited generators, power, combination circuits, parallel circuits, split phase/resistance-start induction run motors, electricity, and compound motors.

Department of Labor, 1944-1956, contains employment reports and public contracts and minimum wage determinations. There is statistical information on the type of employee (male, female, non-white, and part-time) and a report of current and anticipated employment.

Miscellaneous contains one file folder with an undated Department of Labor and Industry letter about a highly desirable labor pool of technical, skilled, and semi-skilled workers becoming available.

Series 4, Operational Records, 1934-1977, is divided into two subseries: Equipment Quotes, 1960-1977, were prepared by Eisler for clients/companies in the United States and in foreign countries. The quotes include details about the machine requested and its price.

Operating Instructions and Parts Lists, 1934-1940s, are arranged predominately by machine number, but there are some exceptions. The files include drawings and sketches, operating instructions on assembling and disassembling, black and white photographs, charts, and product literature. There are some documents that were not created by the Eisler Engineering Company. These documents include operating instructions and drawings from other companies that Eisler had a working relationship with. The instructions, [1934-1945?], arranged alpha-numerically, are operating instructions for machines manufactured by the Eisler Engineering Company. The instructions are labeled D-1 to D-800. These instructions should be used in conjunction with the other operating instructions for specific machines. For example, instructions D-1 are for Eisler machine No. 00, a coil winding machine

Series 5, Diagrams and Drawings, 1924-1960, is divided into two subseries, wiring diagrams and drawings. The wiring diagrams 1934-1956, are arranged by type and provide instructions and diagrams on how to connect wires for Eisler machines. The drawings, 1924-1960, include blueprints, tracings, sketches and in some instances, specifications for specific machines. The name and number of the machine are listed. Also, the drawings contain factory layouts for companies in the United States and in Leningrad, Russia.

Series 6, Sales Records, 1924-1984, is divided into three subseries: customer sales lists, lamp machinery sales records, and catalogs. The Customer Sales Lists, 1951-1958, and the Lamp Machinery Sales Records, 1929-1958, include detailed information for each machine built and shipped to a client: shop number, job number, type of machine, machine number, customer name, customer order number, Eisler order number and date shipped, and a serial number if applicable. There are some lists for customer requested machines such as exhaust machines, stem machines, and base filling machines.

The catalogs, 1924-1979, are arranged into two sub-subseries, Eisler catalogs and other companies' catalogs. The catalogs are further arranged chronologically and are bound or consist of loose pages and individual bulletins. They provide information on incandescent lamps, power transmission tubes; neon tube signs; tungsten equipment and wire; burners, torches, fires, gas and air mixers; metal sprayers; bases; furnaces; vacuum flasks; ampules and vials; vacuum pumps; and electric welders.

Index cards for Eisler Engineering Anniversary Catalog 1945, are arranged by machine number and contain the machine name with a description, pricing information, and in some instances a date and annotations. Each card has a page number that correlates to the Anniversary Catalog No. 45-CE, 1945.

Series 7, Litigation and Patent Records, 1897-1953 (bulk 1926-1929), 1949, 1953, consist of briefs (for the defendant, Eisler, and plaintiff, General Electric) and the transcript of record in the case General Electric vs. Charles Eisler and Eisler Engineering Company, 1926-1929. The litigation was heard in the U.S. District Court, Eastern District of New Jersey and U.S. Circuit Court of Appeals, Third District. GE brought suit against Eisler for infringement of two U.S. patents, #1,128,120 for manufacturing glass rods and forming spiders, and # 1,220,836 for a filament support wire inserting machine. Eisler allegedly infringed by manufacturing and selling a hook inserting machine.

There is one file folder of newspaper clippings about anti-trust in lamp manufacturing and specifically conclusions to the Opinion for the case United States of America vs. General Electric Company, 1953. GE, Corning Glass Works, N.V. Philips Gloeilampenfabriken, Consolidated Electric Lamp Company, Hygrade Sylvania Corporation, Chicago Miniature Lamp Works, and Tung-Sol Lamp Works, Inc., were found guilty and in violation of the Sherman Anti-Trust Act. GE, in particular, negotiated agreements through its wholly-owned subsidiary, International General Electric that divided the world lamp markets. This division permitted GE to have the U.S. market exclusively and bar foreign lamp manufacturers. The domestic licensees' growth was limited by GE to a fixed percentage of its own production and expansion so that over the years a licensee's share of the business was diminished. This restrained trade, and competition by GE unlawfully monopolized the incandescent electric lamp business.

A separate case involving Westinghouse Electric and Manufacturing Co. vs. Beacon Lamp Co., Leopold Rossbach, C. L. Shoninger, A.H. Moses, L.E. Whicher and J.T. Hambay from 1896 to 1898 is also documented through the brief for the complainant and a record of the case.

Patents, 1913-1931, are further divided into tube patents, 1924-1931 and tube patents assigned to Raytheon Company, 1913-1929. The patents were assembled by Eisler for reference.

Series 8, Photographs, 1944-1967, is further divided into six subseries: machines by number, CAMS; timers; jigs; transformers and electrodes; welders; welders, tips, jigs and fixtures; and miscellaneous. The series contains 8" x 10" black and white prints. Originally organized in three- ring binders, the photographs are arranged by machine number with further numerical identifiers. For example, Machine No. 103 is a glass lathe machine and No. 103-XL is a vertical glass lathe machine.

CAMS are curved wheels mounted on a rotating shaft and used to produce variable or reciprocating motion in another engaged or contacted part. They are used to produce or machine something. Tips refer to the remnant of the glass tubing through which the lamp was exhausted of its air (as well as filled with inert gases after the invention of the gas-filled lamp in 1912) and jigs are devices for guiding a tool or for holding machine work in place.

The majority of photographs document machinery; few employees are featured.

Photographs for Machine No. 170, can working equipment at vacuum products, features African American workers circa the 1950s and Machine No. 160, an automatic tub bottoming machine features a female employee. Some of the miscellaneous photographs contain prints of equipment, parts and employees working in the factory.

Series 9, Scrapbooks, 1916-1959, includes three scrapbooks. Many of the articles are in Hungarian or Spanish.

Scrapbook, 1943 (bulk 1945-1955), 1959, contains newspaper articles about Charles Eisler and Eisler Engineering Company. Many articles and advertisements focus on specific machines Eisler manufactured. Articles about Charles Eisler contain information about the associations he belonged to, litigation, awards received, Lesire Corporation, his tenant company; and the appointment of Charles Eisler, Jr., as President of Eisler Engineering Company. Other items include company Christmas cards.

Scrapbook, 1916-1944, 1948, 1957, contains newspaper clippings and catalog pages on machines manufactured by Eisler; personal information about Charles Eisler's trip to Europe; a fire at his summer home; and Christmas decorations. There is documentation on Eisler Engineering Company employees, World War II contributions and production, and photographs of Charles Eisler presenting a donation to the Newark Hungarians and the U.S. Army Ambulance Branch.

Scrapbook, 1924-1959, contains convention programs, Family Circle information, documentation on various social events Eisler attended and machine advertisements.

Arrangement:

Collection organized into nine series.

Series 1, Personal Materials, 1910s-1970s

Subseries 1, Passports and Naturalization Certificate, 1910-1970s

Subseries 2, Photographs, 1912

Subseries 3, Chronological Correspondence, 1946-1970

Subseries 4, Alphabetical Correspondence, 1941-1969

Subseries 5, Family and Friends Correspondence, 1956-1966

Subseries 6, Vacation information, 1951

Subseries 7, Financial information, 1960-1967

Subseries 8, Medical Bills and Information, 1963-1967

Series 2, Business Materials, 1885, 1929-1985

Subseries 1, Correspondence, 1946-1971

Subseries 2, General Files, 1929-1985

Subseries 3, Financial Information, 1931-1945

Subseries 4, World War II Boards and Regulations, 1942-1946

Subseries 5, Real Estate Holdings and Investments, 1932-1980

Subseries 6, Articles, 1885-1962 (not inclusive)

Subseries 7, Kahle Engineering, 1960-1982

Series 3, Employee/Personnel Records, 1940-1988

Subseries 1, Personnel Files, 1940s-1960s

Subseries 2, Accident Reports, 1958-1988

Subseries 3, Lists of employee names, 1957-1977, undated

Subseries 4, Service years and anniversaries, 1955-1970

Subseries 5, Union (IUE AFL-CIO) agreements and contracts, 1942-1957, undated

Subseries 6, Benefits (health and pension), 1957-1967, undated

Subseries 7, Deceased employees, 1946-1951

Subseries 8, Payroll Information, 1940-1973

Subseries 9, Electrical License Course, undated

Subseries 10, Department of Labor, 1944-1956

Subseries 11, Miscellaneous, undated

Series 4, Operating Records, 1934-1977

Subseries 1, Equipment Quotes, 1960-1977

Subseries 2, Operating Instructions and Parts Lists, 1934-1940s

Series 5, Diagrams and Drawings, 1924-1963, undated

Subseries 1, Wiring Diagrams, 1934-1956

Subseries 2, Drawings for Machines, 1924-1963

Subseries 3, Drafting Tools, undated

Series 6, Sales Records, 1924-1984

Subseries 1, Customer Sales Lists, 1951-1958

Subseries 2, Lamp Machinery Sales Records, 1929-1958

Subseries 3, Eisler Catalogs, 1924-1979

Subseries 4, Index cards for Eisler Engineering catalogs

Series 7, Litigation and Patents Records, 1897-1953

Subseries 1, Litigation Records, 1897 (bulk 1926-1929), 1949, 1953

Subseries 2, Patents, 1913-1931

Series 8, Photographs, 1942-1967

Subseries 1, By Machine Number, -1966

Subseries 2, CAMS, 1950-1967

Subseries 3, Timers, Jigs, Transformers, and Electrodes, 1952-1960

Subseries 4, Welders, 1944-1952

Subseries 5, Welders, Tips, and Jigs and Fixtures, 1944-1952

Subseries 6, Miscellaneous, 1944-1957

Series 9, Scrapbooks, 1916-1959

Biographical / Historical:

Charles Eisler (1884-1973) was born in Hungary to Adolph and Helen Eisler. Charles was the second child of nine: George, Emil, Michael, Leopold, Rudi, Franz, Emma and Lajos. Eisler completed his engineering and mechanical studies by the age of 17 and began an apprenticeship with a local factory. He became a licensed steam engineer and fireman of high pressure boilers. In 1902, he left Hungary for Berlin, Germany, with the goal to immigrate to the United States. In Germany, Eisler worked in a factory in Eberswalde, north of Berlin. The factory manufactured cast-iron pipe and machinery, and Eisler operated a crane loading barges near the factory. Eisler left Eberswalde and returned to Berlin to work as a toolmaker at Allgemeine Electricitäts Gesellschaft' (AEG). He arrived in New York City on the SS Potsdam/Stockholm (I) in November 1904. Because Europeans dominated the field of skilled mechanics and tradesmen in the United States, Eisler easily found employment in East Pittsburgh at Pittsburgh Westinghouse. In 1907, Eisler worked for Studebaker Metzger Motor Company as a tool-designer and tool room foreman.

Eisler returned to Hungary in the spring of 1912 where he took a job as a tool designing engineer with an American owned electrical firm, Standard Electric Company, in Újpest. He married Frieda Schwartz Eisler (d.1962) on December 24, 1912, in Budapest. They had four children: Charles Eisler, Jr., Martha (Eisler) Leff; Ruth (Eisler) Forest; and Constance (Eisler) Smith. In 1914, Eisler, his wife Frieda, and their newborn son Charles, Jr., returned to the United States. Eisler worked at the Westinghouse Lamp Company in Bloomfield, New Jersey, designing machines for building incandescent lamps with tungsten wire. At Westinghouse, Eisler held the position of chief engineer of the equipment division, and he completed the International Correspondence Schools course in mechanical engineering (1918). Eisler left Westinghouse in 1919 to work for Save Electric Corporation of Brooklyn, New York (an independent lamp manufacture), formed by Max Ettiger. At Save Electric, Eisler was equipment engineer superintendent and responsible for designing machines for the production of incandescent lamps.

General Electric (GE), Westinghouse, and RCA had a monopoly on modern incandescent lamp making machinery. The manufacture of lamps and tubes had moved from a low-rate, highly skilled craft work of Edison's Menlo Park to a high-rate, semi-skilled process dominated by GE and others. It was difficult for independent lamp manufacturers, such as Save Electric, to compete. The control and licensing of machinery patents was one method GE used to maintain a virtual monopoly on lamp manufacture throughout the first half of the 20th century. GE purchased Save Electric in 1920 to remove it from the incandescent lamp market. That same year, Eisler lost his job and started his own company, Eisler Engineering Company, to consult and manufacture equipment for producing electric lamps, television tubes, radio tubes, glass products, neon tubes, welding equipment and laboratory equipment. He established a machine shop at 15 Kirk Alley, Newark, New Jersey, where he redesigned many of his machines and drawings and started patenting. By 1924, Eisler's plant doubled in physical size and labor supply, with the radio tube industry peaking in 1929.1 However, the stock market crash of 1929-1930 severely impacted production, and Eisler never again saw the same growth. In 1929, Eisler sold a 49% interest in the company to Frank Bonner.

In June 1933, Eisler and others organized a group of independent manufacturers into the Incandescent Lamp Manufacturer's Association (ILMA). In response to the pressuring tactics of GE, Westinghouse and RCA, the group also documented every lamp maker who went out of business or that was bought by a monopoly member. The ILMA allowed members to pool their resources for patent litigation. "Eisler was the third leading outside supplier of lamp making machinery. It was not licensed by General Electric, and the unlicensed lamp manufacturers obtained most of their lamp making equipment from it. The Eisler equipment was less automatic and of considerably less speed than the machinery used by the General Electric group. However, it was considerably lower in price."2

Eisler Engineering Company was sued at least four times by GE between 1923 and 1928 for alleged patent infringement but won each case. The cases involved four United States patents owned by GE: Van Keuren #1,326,121; Mitchell and White #1,453,594; Mitchell and White #1,453,595; and Marshall #1,475,192. The last three patents address a process used in the manufacture of electric lamps known as "sealing in" of tip-less lamps. The plaintiff, GE, complained that Eisler, the defendant, was infringing. Several GE patents were declared invalid during the proceedings or were withdrawn, and Eisler's U.S. Patent #1,637,989 for tip-less lamps was upheld. See General Electric Company vs. Eisler Engineering Company, 20 F (2d.) 33 (C.C.A., 1927), 26 F (2d.) 12 (C.C.A., 1928), and 43 F (2d.) 319 (C.C.A., 1930). One of Eisler's strongest defenses was a 1916 article he published in Machinery on Tungsten Lamp Manufacture. Eisler defended his case not only for the interest of his own company but also for those who utilized his products as well as those who manufactured under a licensing agreement with Eisler Engineering Company.

In 1954, Charles Eisler, Jr., formerly vice president became president of Eisler Engineering Company, Inc., and Charles Eisler, Sr., became chairman of the board. In 1958, Eisler Senior officially stepped down. In the late 1970s, Eisler, Jr., sold the company to Kahle Engineering Company. Kahle, established in 1920 with its roots in the glass machinery business, provided equipment for the medical device, pharmaceutical, electrical and automotive industries. Today, Kahle focuses solely on the manufacture of assembly machines for medical devices.

Eisler was issued fifty-seven United States patents relating to the mass production of glass articles. His first patent was issued in 1916 (U.S. Patent # 1,209,650) for a turret attachment and his last was issued in 1958 (U.S. Design Patent # DES 182,796) for a spot welder/press type. Eisler received an honorary Doctor of Science degree from Bloomfield College in Bloomfield, New Jersey (1951) and was elected to life membership in the American Society of Mechanical Engineers (1952). He died on October 8, 1973 at the age of 89 in East Orange, New Jersey.

1 Eisler, Charles. The Million-Dollar Bend (New York: William-Frederick Press, 1960). 2 Bright, Arthur. The Electric Lamp Industry (New York: Macmillan Co., 1949).

Related Materials:

Materials in the Archives Center

Kahle Engineering Company Records, 1930-1980 (AC0735), the successor company to Eisler Engineering

Materials in Other Organizations

Rutgers University Special Collections and University Archives have some Eisler Engineering Company trade literature in the Sinclair New Jersey Collection: New Jersey Trade Literature and Manufacturers' Catalogs at http://www.libraries.rutgers.edu/rul/libs/scua/sinclair/sinclair_main.shtml.

Provenance:

The collection was donated by E.N. Logothetis of Kahle Engineering on June 15, 2000.

Restrictions:

Collection is open for research but the majority is stored off-site and special arrangements must be made to work with it. Series 3, Employee Records, personnel files are restrictedContact the Archives Center for information at archivescenter@si.edu or 202-633-3270.

Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning intellectual property rights. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Topic:

welding -- Equipment and supplies  Search this

Patents  Search this

Jigs and fixtures  Search this

Laboratory -- Furniture, equipment  Search this

Lamps  Search this

Litigation  Search this

Tubes  Search this

Tubes -- welding  Search this

Vacuum pumps  Search this

Electrodes  Search this

Furnaces  Search this

Electric lighting  Search this

Electric transformers  Search this

Vacuum-tubes  Search this

welding  Search this

Halogen incandescent lamps  Search this

Cams  Search this

Coils -- electric  Search this

Incandescent lamps  Search this

Electric lamps  Search this

Electric lamps, Arc  Search this

Electric lamp industry  Search this

Genre/Form:

Photographs -- 20th century

Scrapbooks

Blueprints

Correspondence -- 19th-20th century

Citation:

Eisler Engineering Company Records, Archives Center, National Museum of American History, Smithsonian Institution.

Identifier:

NMAH.AC.0734

See more items in:

Eisler Engineering Company records

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep8d545ecf6-200c-44df-8a5c-405e9ca1e3b6

EDAN-URL:

ead_collection:sova-nmah-ac-0734

Collection Creator:

Eisler Engineering Company.  Search this

Container:

Box 42, Folder 2

Type:

Archival materials

Date:

[undated?]

Collection Restrictions:

Collection is open for research but the majority is stored off-site and special arrangements must be made to work with it. Series 3, Employee Records, personnel files are restrictedContact the Archives Center for information at archivescenter@si.edu or 202-633-3270.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning intellectual property rights. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

Eisler Engineering Company Records, Archives Center, National Museum of American History, Smithsonian Institution.

See more items in:

Eisler Engineering Company records

Eisler Engineering Company records / Series 2 : Business Materials / 2.2: General Files

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep8a6a163a2-447c-48b5-aa16-63e88b8f702d

EDAN-URL:

ead_component:sova-nmah-ac-0734-ref118

Collection Creator:

Eisler Engineering Company.  Search this

Container:

Box 17, Folder 1

Type:

Archival materials

Date:

[undated]

Collection Restrictions:

Collection is open for research but the majority is stored off-site and special arrangements must be made to work with it. Series 3, Employee Records, personnel files are restrictedContact the Archives Center for information at archivescenter@si.edu or 202-633-3270.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning intellectual property rights. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

Eisler Engineering Company Records, Archives Center, National Museum of American History, Smithsonian Institution.

See more items in:

Eisler Engineering Company records

Eisler Engineering Company records / Series 4 : Operational Records / 4.2: Operating Instructions and Parts Lists

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep8a034a4da-21a0-43f6-960a-e27a54c16946

EDAN-URL:

ead_component:sova-nmah-ac-0734-ref1425

Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Former owner:

National Museum of American History (U.S.). Division of Electricity and Modern Physics  Search this

Names:

Batchelor, George  Search this

Bell, Alexander Graham, 1847-1922  Search this

Berliner, Emile, 1851-1929  Search this

Curie, Marie  Search this

Curie, Pierre  Search this

Edison, Thomas A. (Thomas Alva), 1847-1931  Search this

Jehl, Francis  Search this

Johnson, Edward H.  Search this

Sprague, Frank J.  Search this

Tesla, Nikola, 1856-1943  Search this

Upton, Francis R.  Search this

Extent:

36 Cubic feet (124 boxes, 3 map-folders)

Type:

Collection descriptions

Archival materials

Correspondence

Photographs

Date:

circa 1847-1989

Summary:

Original documents and papers generated by William J. Hammer and by various companies and individuals with whom he was associated. Includes material related to the research and inventions of Edison, Bell, Tesla, the Curies, etc.

Scope and Contents:

This collection includes original documents and papers generated by Hammer and by various companies and individuals and various secondary sources assembled by Hammer between 1874 and 1934. Hammer's lifelong association with the foremost scientists of his day -- Edison, Bell, Maxim, the Curies, the Wright brothers, and others - afforded him a unique opportunity to collect materials about the development of science along many lines.

This collection, which includes rare historical, scientific, and research materials, was donated by the International Business Machine Corporation to the Museum of History and Technology in 1962 and held by the Division of Electricity. In 1983 it was transferred to the -Archives Center. The collection was badly disorganized when received and contained many fragile documents in poor condition. The collection was organized and arranged as reflected in this register.

The collection documents in photographs, manuscripts, notes, books, pamphlets, and excerpts, the beginnings of electrical technology. In its present state, it comprises four series: Series 1 contains twenty-two boxes of the William J. Hammer Papers, containing both biographical and autobiographical material; Series 2 has twenty boxes of material on Edison; Series 3 consists of thirty-three boxes of reference material; and Series 4 holds twenty-one boxes of photographs and portraits. See the container list beginning on page 39 for more detailed information on the contents of the collection.

Most of the material in the collection is chronologically arranged. However, in some cases alphabetical arrangement has been employed, for example, in the arrangement of portraits of eminent men of electrical science (Series 4, Boxes 78-80, 100-101), and the arrangement of publications (by authors' last names).

Hammer did original laboratory work upon selenium, radium, cathode rays, x-rays, ultra-violet rays, phosphorescence, fluorescence, cold light, and wireless. These aspects of his career are reflected in many parts of the collection: in Series 1 there are articles, notes, diagrams, sketches, graphs,, and correspondence; in Series 3 articles, magazines, news clippings, and bound pamphlets. Tie contributed many technical writings, some of which are found in Series 1.

Papers detailing Hammer's aeronautical activities were transferred to the National Air and Space Museum. They consist of two scrapbooks and one cubic foot of aeronautical photographs of balloons, airplanes, and gliders and one-half cubic foot of correspondence. For further information contact the National Air and Space Museum Archives at (202) 357-3133.

Arrangement:

The collection is divided into four series.

Series 1: William J. Hammer Papers, 1851-1957

Series 2: Edisonia, 1847-1960

Series 3: Reference Materials, 1870-1989

Series 4: Photographs, 1880-1925

Biography of William J. Hammer:

William Joseph Hammer, assistant to Thomas Edison and a consulting electrical engineer, was born at Cressona, Schuylkill County, Pennsylvania, February 26, 1858, and died March 24, 1934. His parents were Martha Augusta Bech (1827-1861) and William Alexander Hammer (1827-1895). He attended private and public schools in Newark, New Jersey, and university and technical school lectures abroad.

On January 3, 1894, Hammer married Alice Maud White in Cleveland, Ohio. They had one daughter, Mabel (Mrs. Thomas Cleveland Asheton). Alice Hammer died in 1906.

In 1878 Hammer became an assistant to Edward Weston of the Weston Malleable Nickel Company. In December 1879 he began his duties as laboratory assistant to Thomas Edison at Menlo Park, New Jersey. He assisted in experiments on the telephone, phonograph, electric railway, ore separator, electric lighting, and other developing inventions. However, he worked primarily on the incandescent electric lamp and was put in charge of tests and records on that device. In 1880 he was appointed Chief Engineer of the Edison Lamp Works. In this first year, the plant under general manager Francis Upton, turned out 50,000 lamps. According to Edison, Hammer was "a pioneer of Incandescent Electric Lighting"! (Hammer's memoranda and notes, Series 2).

In 1881 Edison sent Hammer to London as Chief Engineer of the English Electric Light Co. In association with E. H. Johnson, general manager, Hammer constructed the Holborn Viaduct Central Electric Light Station in London. This plant included three, thirty-ton "Jumbo" steam-powered dynamos (generators), and operated 3,000 incandescent lamps. Holborn was the first central station ever constructed for incandescent electric lighting. Hammer began its operation on January 12, 1882, by lighting the Holborn Viaduct.

In 1882 Hammer also installed a large isolated lighting plant containing twelve Edison dynamos at the Crystal Palace Electric Exposition and the Edison Exhibit at the Paris Electrical Exposition.

At this time Hammer also designed and built the first electric sign. The sign spelled the name "Edison" in electric lights, and was operated by a hand controlled commutator and a large lever snap switch. It was erected over the organ in the Crystal Palace concert hall.

In 1883 Hammer became Chief Engineer for the German Edison Company (Deutsche Edison Gesellschaft), later known as Allegemeine Elektricitaets Gesellschaft. Hammer laid out and supervised the installations of all Edison plants in Germany. While in Berlin he invented the automatic motor-driven "flashing" electric lamp sign. The sign, which flashed "Edison" letter by letter and as a whole, was placed on the Edison Pavilion at the Berlin Health Exposition in 1883.

On his return to the United States in 1884, Hammer took charge of some of Edison's exhibits, including Edison's personal exhibit, at the International Electrical Exhibition held under the authority of the Franklin Institute in Philadelphia. There he built the first flashing "Column of Light." He also became confidential assistant to E. R. Johnson, president of the parent Edison Electric Light Company. Together with Johnson and Frank J. Sprague, he became an incorporator of the Sprague Electric Railway and Motor company. He also was elected a trustee and the company's first secretary.

Hammer installed an all-electric house at Newark, New Jersey in 1884 and he devised various electrical devices and contrivances for an unusual party for friends and colleagues. (See "Electrical Diablerie" beginning on page 6).

At the end of 1884 Hammer became chief inspector of central stations of the parent Edison Electric Light Company. For over two years he made financial, mechanical, and electrical reports on the various stations throughout the United States. During 1886-87 he was chief engineer and general manager of the Boston Edison Electric Illuminating Company. He also acted as contractor for the company. He laid $140,000 of underground tubing and installed Sprague Electric Motors.

In 1888, acting as an independent engineer, he was placed in charge of completing the 8,000 light plant of the Ponce de Leon Hotel in St.Augustine Florida. At the time this was the largest isolated incandescent lighting plant ever constructed. Also in 1888 Hammer was appointed consulting electrical engineer to the Cincinati Centennial Expostition, and as a contractor designed and installed over $40,000 worth of electrical effects.

Hammer was appointed Edison's personal representative remarked, "There are a lot of crowned heads in the Edison business. How many of them am I subservient to?" Mr. Edison answered "You take no instructions except from Thomas A. Edison." Hammer asked "What are your instructions?" Mr. Edison replied, 'Hammer, I haven't any. Go and make a success of it.' In Paris he set up and operated all of Edison's inventions, which embraced nineteen departments and covered 9,800 square feet of space. He also built a huge Edison lamp forty-five feet high employing 20,000 lamps. Edison remarked, 'He had entire charge of my exhibit at the Paris Exposition, which was very successful." This was the largest individual exhibit at the Exposition, costing $100,000. Mr. Edison replied, "I want you to go right out and have a card engraved William J. Hammer, Representative of Thomas A. Edison. You are the only representative I have here," and he complimented him on his work adding, "The French government will do something handsome for you for your work." Hammer replied that he would not raise his hand to get it and did not believe in giving such honors to people who seek them. Mr. Edison said, "You are wrong. You are a young man and such things are valuable. At any rate if there's anyone in this exhibition who deserves recognition, you do, and I'm going to see you get it' (Hammer's memoranda and notes, Series 2). Thirty-four years later, in 1925, through the personal influence of Edison, Hammer was made Chevalier of the Legion of Honor by the French government.

In 1890 Hammer returned to the United States and opened an office as a consulting electrical engineer. He was in private practice until 1925, making reports, conducting tests, and giving expert testimony in patent suits.

On January 31, 1890, Hammer formed the Franklin Experimental Club of Newark where boys could come and carry on experiments, build apparatus, and listen to lectures. Hammer equipped the laboratory at his own expense. One side was an electrical laboratory and the other a chemical laboratory. About forty-five boys joined. Each boy had a key to the club and a section of a bench with his own drawer for keeping notes, tools, and other equipment. In 1892 the structure was destroyed by fire from a saloon next door, ending Hammer's plans for a large and useful institution.

In 1896 Hammer was elected president of the National Conference of Standard Electrical Rules, which prepared and promulgated the "National Electric Code."

In 1902 in Paris, Hammer visited Pierre and Marie Curie, the discoverers of radium and polonium. They gave him nine tubes of radium and one of polonium to bring back to the United States. He also acquired some sulphide of zinc, with which he mixed radium carbonates, producing a beautifully luminous powder. This was the first radium-luminous material ever made. By mixing the powder with Damar varnish he produced the first radium-luminous paint. He was also the first person to make colored (and white) luminous materials. In 1907 he invented and patented a process for producing colored phosphorescent materials by combining phosphorescent and fluorescent substances.

Back in the United States in the fall of 1902 and into 1903, Hammer applied his radium-luminous materials to thirty different objects: luminous dials for clocks and watches, toys, artificial flowers, radium luminous gun sights, taps and pulls for lamp sockets, switches, keyholes, push buttons, telephone transmitters, poison bottle labels, a small plaster figure, push pins, and writing implements among others. He did not patent the invention due to the scarcity and high cost of radium, but later in an important suit involving foreign and American patents of radium-luminous materials, his testimony and that of other noted scientists and professionals of the day who had visited his home and laboratory proved that his work completely anticipated that of all inventors both in the United States and abroad. In 1902 he was one of the first persons to be burned with radium.

Hammer gave eighty-eight lectures on the Curies' work and on radium and radioactive substances. He wrote the first book published on radium, Radium and other Radioactive Substances, 1903. Hammer proposed and used radium for cancer and tumor treatment, successfully treating and curing a tumor on his own hand in July 1903. Tie also supplied several hospitals with radioactive water he had made and conducted extensive experiments with x-rays, cathode-rays, radium-rays, ultraviolet lights, phosphorescence, fluorescence, and cold-light. He was probably the first to suggest many wartime uses for radium-luminous materials, such as airplanes, instruments, markers, barbed-wire, and landing fields.

Hammer also did important work with selenium, a nonmetallic element that resembles sulphur and tellurium chemically. It is obtained chiefly as a by-product in copper refining, and occurs in allotropic forms. A grey stable form varies in electrical conductivity depending on the intensity of its illumination and is used in electronic devices. Hammer invented selenium cells and apparatus, and suggested industrial uses for selenium and other light-sensitive cells.

In 1886 Hammer devised a system for automatically controlling street and other lights by use of a selenium cell. In 1892 he designed a torpedo that could be steered by searchlight and selenium cell. In the early 1900s he suggested many other uses for "light" cells, including burglar alarms, dynamo control, buoy, railroad signaling, automatic gun firing, transmission of music, stethoscope recorder, automatic operating shutters, automatic boiler feed, snow recorder, and electric motor control.

At the St. Louis Exposition of 1904 Hammer was Chairman of the Jury for Telegraphy, Telephony, and Wireless. He was also a member of the "Departmental" Jury ("Applied Science: Electricity") and of the committee appointed to organize the International Electrical Congress at St. Louis in 1904.

In 1906 Hammer received the "Elliott Cresson" gold medal from the Franklin Institute for his "Historical Collection of Incandescent Electric Lamps," accumulated over thirty-four years. This collection received a special silver medal at the International Electrical Exposition at the Crystal Palace, London, England, in 1882, and "the Grand Prize" at the St. Louis Exposition of 1904.

During the First World war Hammer served as a major on the General Staff of the, Army War College, Washington, D.C., where he was attached to the Inventions Section of the War Plans Division and later to the operations Division at the war Department in charge of electrical and aeronautical war inventions. He did special work at the U.S. Patent office, marking and delaying patents that might be useful to the enemy and served on the Advisory Board of Experts attached to the Alien Property Commission. He was elected Historian general of the Military order of the World War (1926-1928) and was a member of the Society of American Military Engineers.

Hammer was an early aeronautics enthusiast and became the owner of one of the first airplanes sold in the United States to an individual. Even in his last few years of his life, Hammer's interest in airplanes did not wane. In 1931, by the permission of the Secretary of the -Navy, Hammer made a twelve-hour flight in the Los Angeles dirigible from the Lakehurst, New Jersey airdrome along the coast of the Atlantic Ocean to New York, flying over New York City at night.

Hammer served on numerous committees. In 1916 he was a member of a special committee, appointed by the Aeronautical Society of America. one of his responsibilities on this committee was to recommend methods for the formation of a reserve force of civilian aviators for the Army. At the start of World War I, Hammer was appointed chairman of a committee on camouflage by the Aeronautical Society. During the war, he flew airplanes and tested sound devices and was also among the first five selected out of thousands for the dissemination of propaganda into many countries. He also examined documents and papers captured from spies and prisoners of war to see if these material contained any technical matter of value to the U. S. Army.

Hammer traveled extensively as a delegate of the Military Order of World War I. For example, in 1922 he attended the aeronautical Congress and Flying Meet in Detroit, Michigan. In the same year he also attended Immigration Conferences of the National Civic Federation in New York.

Between 1922 and 1928 Hammer intensified his efforts in collecting and organizing autographed portraits of eminent scientific men, a project he had been working on for over forty-five years. Tie displayed many of these portraits with his Historical Collection of Incandescent Electrical Lamps in -his New York home. At this time he also prepared an elaborate bibliography on selenium and its industrial and scientific applications.

Major William Joseph Hammer, described by Edison as "my most valuable assistant at Menlo Park" died of pneumonia March 24, 1934.

'Electrical Diablerie':

"ELECTRICAL DIABLERIE"

N.Y. World, January 3, 1885 and Newark, N.J. Daily Advertiser and Journal, January 3, 1885

Some years ago, (1884) on New Year's eve, an entertainment was given at the home of Mr. William J. Hammer, in Newark, N.J., which, for the display of the powers of electricity has seldom, if ever, been equaled. Mr. Hammer, who has for years been associated with Mr. Edison, both in this country and in Europe, desiring to give his old classmates, the "Society of Seventy-Seven," a lively and interesting time, invited them to "an electrical dinner"at his home.

The invitations which were sent out were written upon Western Union telegram blanks with an Edison electric pen. When the guests arrived and entered the gate, the house appeared dark, but as they placed foot upon the lower step of the veranda a row of tiny electric lights over the door blazed out, and the number of the house appeared in bright relief. The next step taken rang the front door bell automatically, the third threw open the door, and at the same time made a connection which lit the gas in the hall by electricity.

Upon entering the house the visitor was invited to divest himself of his coat and hat, and by placing his foot upon an odd little foot-rest near the door, and pressing a pear-shaped pendant hanging from the wall by a silken cord, revolving brushes attached to an electric motor brushed the mud and snow from his shoes and polished them by electricity. As he was about to let go of the switch or button, a contact in it connected with a shocking coil, caused him to drop it like a hot potato. Up-stairs was a bedroom which would be a fortune to a lazy man; he had only to step on the door sill and the gas was instantly lighted. The ceiling was found to be covered with luminous stars, arranged to represent the principal constellations in the heavens-while comets, moons, etc., shone beautifully in the dark. By placing one's head on the pillow, the gas, fifteen feet away, would be extinguished and the phosphorescent stars on the ceiling would shine forth weirdly, and a phosphorescent moon rose from behind a cloud over the mantel and slowly describing a huge arch disappeared behind a bank of phosphorescent clouds on the other side of the room; by pressing the toe to the foot-board of the bed the gas could again be relit.

Pouring a teacup of water into the water clock on the mantel and setting the indicator would assure the awakening of the sleeper at whatever hour he might desire. There was also in the hall outside the room a large drum, which could be set to beat by electricity at the hour when the family wished to arise. The whole house was fitted throughout with electric bells, burglar alarms, fire alarms, telephones, electric cigar lighters, medical coils, phonographs, electric fans, thermostats, heat regulating devices, some seven musical instruments, operated by electricity, etc.

Upon the evening referred to nearly every. piece of furniture in the parlor was arranged to play its part. Sit on one chair and out went the gas, take another seat and it would light again; sitting on an ottoman produced a mysterious rapping under the floor; pressure on some chairs started off drums, triangles, tambourines, cymbals, chimes and other musical instruments; in fact, it seemed unsafe to sit down anywhere. The quests stood about in groups and whispered, each hoping to see his neighbor or a new comer caught napping.

One visitor (Brown) secured an apparently safe seat, and was telling a funny story--he had left electricity far behind--but just as he reached the climax, a pretty funnel-shaped Japanese affair like a big dunce cap, that seemed but a ceiling ornament which was held in place by an electromagnet, dropped from overhead and quietly covered him up, thus silently extinguishing the story and the story-teller.

A big easy chair placed invitingly between the folding doors joining the double, parlors sent the unwary sitter flying out of its recesses by the sudden deafening clamor of twenty-one electric bells hidden in the folds of the draperies hanging in the doorway. In a convenient position stood the silver lemonade pitcher and cup, the former was filled with the tempting beverage, but no matter how much a guest might desire to imbibe one touch convinced him that the pitcher and cup were so heavily charged with electricity as to render it impossible for him to pour out a drink or even to let go until the electricity was switched off from the hidden induction coil.

Some one proposed music, and half a selection had been enjoyed when something seemed to give way inside the piano, and suddenly there emanated from that bewitched instrument a conglomeration of sounds that drowned the voices of the singers, and the keys seemed to beat upon a horrible jangle of drums, gongs and various noise-producing implements which were fastened inside of and underneath the piano.

After the guest were treated to a beautiful display of electrical experiments, under the direction of Mr. Hammer, and Professor George C. Sonn, they were escorted to the dining-room, where an electrical dinner had been prepared and was presided over by 'Jupiter," who was in full dress, and sat at the head of the table, where by means of a small phonograph inside of his anatomy he shouted, "Welcome, society of Seventy-Seven and their friends to Jove's festive board." The menu was as follows: "Electric Toast," "Wizard Pie," "Sheol Pudding," "Magnetic Cake," "Telegraph Cake," "Telephone Pie," "Ohm-made Electric Current Pie," "Menlo Park Fruit," "Incandescent Lemonade," "'Electric Coffee" and "Cigars," etc., and music by Prof. Mephistopheles' Electric Orchestra.

About the table were pretty bouquets, and among the flowers shone tiny incandescent lamps, while near the center of the table was placed an electric fan which kept the air cool and pure, and at each end was a tiny Christmas tree lighted with small incandescent lamps, planted in a huge dish of assorted nuts and raisins. Each lamp had a dainty piece of ribbon attached to it upon which the initials of the Society and the date were printed, and each guest received a lamp to take away with him as a souvenir of the occasion. Plates of iced cakes made in the form of telephones, switches, bells, electric lamps, batteries, etc., stood on each side of the center piece.

Promptly at 12 o'clock, as the chimes of the distant churches came softly to the ears of the assembled quests, pandemonium seemed to change places with the modest dining-room. A cannon on the porch, just outside the door, and another inside the chimney, were unexpectedly discharged; and at this sudden roar, every man sprang back from the table; the lights disappeared; huge fire-gongs, under each chair beat a tattoo. The concussion produced by the cannon in the fireplace caused several bricks to come crashing down the chimney, and as the year of 1884 faded away, the table seemed bewitched. The "Sheol Pudding" blazed forth green and red flames illuminating the room, tiny tin boxes containing 'Greek" fire which had been placed over each window and door were electrically ignited by spirals of platinum iridium wire heated by a storage battery and blazed up suddenly; the "Telegraph Cake" clicked forth messages said to be press reports of the proceedings (it was also utilized to count the guests and click off the answers to various questions put to it); bells rang inside the pastry; incandescent lamps burned underneath the colored lemonade; the thunderbolt pudding discharged its long black bolts all over the room (long steel spiral springs covered with black cloth) and loud spirit rapping occurred under the table. The silver knives, forks and spoons were charged with electricity from a shocking coil and could not be touched, while the coffee and toast (made by electricity) were made rapidly absorbed; the "Magnetic Cake' disappeared; the "Wizard" and "Current Pies' vanished, and 'Jupiter" raising a glass to his lips began to imbibe.

The effect was astonishing! The gas instantly went out, a gigantic skeleton painted with luminous paint appeared and paraded about the room, while Jupiter's nose assumed the color of a genuine toper! His green eyes twinkled, the electric diamonds in his shirt front (tiny lamps) blazed forth and twinkled like stars, as he phonographically shouted "Happy New Year'. Happy New Year!" This "Master of Cererionies' now becoming more gentle, the guests turned their attention to the beautiful fruit piece, over four feet high, that stood in the center of the table. From the fruit hung tiny electric lamps, and the whole was surmounted by a bronze figure of Bartholdils "Statue of Liberty;" uplifted in "Miss Liberty's" right hand burned an Edison lamp no larger than a bean.

The dinner finished, and there was much that was good to eat, notwithstanding the "magical" dishes which they were first invited to partake of, speeches were delivered by Messrs. Hammer, Rutan, McDougall, 'Brown, Duneka, and Dawson, and an original poem was read by Mr. Van Wyck. Upon repairing to the parlors the guest saw Mr. Hammer's little sister, May, dressed in white and mounted upon a pedestal, representing the "Goddess of Electricity:" tiny electric lamps hung in her hair, and were also suspended as earrings, while she held a wand surmounted by a star, and containing a very small electric lamp.

Not the least interesting display of electricity took place in front of the house, where a fine display of bombs, rockets, Roman candles, Greek fire and other fireworks were set off by electricity, which was by the way, the first time this had been accomplished. The guests were requested to press button switches ranged along the front veranda railing thus causing electricity from a storage battery to heat to a red heat tiny platinum iridium spirals attached to each fuse of the various pieces of fireworks thus sending up rocket after rocket, as well as igniting the other pieces which had been placed in the roadway in front of the house.

An attempt was made to send up a large hot air balloon to which was attached a tiny storage battery and an incandescent signal lamp but a sudden gust of wind caused the ballon to take fire as it rose fr(xn the ground. This constituted the only experiment made during the evening which was not an unqualified success. The innumerable electrical devices shown during the progress of the dinner were all operated by Mr. Hammer, who controlled various switches fastened to the under side of the table and attached to a switchboard, which rested on his lap, while the two cannons were fired by lever switches on the floor, which he operated by the pressure of the foot. Electricity was supplied by primary and storage batteries placed under the table. After an exhibition of electrical apparatus and experiments with a large phonograph, the guests departed with a bewildered feeling that somehow they had been living half a century ahead of the new year."

Expositions and Exhibitions:

The many Expositions held at the end of the 19th and the beginning of the 20th centuries were important for the Edison Electric Company's future business. In particular the Paris Electrical Exposition, 1881, and the Crystal Palace Exposition in London in 1892 were introductions for the company's international business enterprises. Edison, therefore, sent his ablest men from the Menlo Park staff (Batchelor, Hammer, Jehl, Johnson) to Europe to oversee the installation and promotion of the company's exhibits.

THE INTERNATIONAL PARIS EXPOSITION OF 1881

The International Paris Electrical Exposition was held during the summer of 1881. Many of Edison's electric lighting systems, ranging from arc lights to incandescent devices, were exhibited. A model of the Edison central-station lighting system showed an arrangement of incandescent lights within a complete electrical distributing system, including novel appliances and controls of the Edison system. "The completeness of its conception made a profound impression on the foremost European electrical engineers of that era." (Josephson, Matthew. Edison, A Biography. p. 252). Edison also exhibited his first "Jumbon generator. It was "direct-connected" to its driving engine, another area in which Edison pioneered. Edison improved upon the original design of William Wallace's "Telemachon' - a generator coupled to a water-powered turbine. Wallace had earlier in the decade produced the first dynamo in America.

Charles Batchelor headed the Edison exhibits within Paris. Edison received many gold medals and diplomas and was awarded the ribbon of the Legion of Honor.

The William J. Hammer Collection contains various reports and catalogues exhibited at the International Exposition of Electricity. (Series 3, Box 44, Folders 1-4)

THE CRYSTAL PALACE EXHIBITION OF 1882

At the Crystal Palace Exhibition of 1882 in London, Edison displayed a great many of his inventions, including: the steam dynamo; specimens of street pipes and service boxes used in the Edison underground system of conductors, and the system of house conductors with devices for preventing abnormal increase of energy in house circuits; apparatus for measuring the resistance of his lamps, for measuring the energy consumed in lamps, and rheostats for restoring currents; also thermogalvano-meters, carbon rheostats, dynamometers, photometers, carbon regulators, Weber meters,, current regulators, and circuit breakers for controlling electric light circuits; the carbon relay, the pressure relay, and the expansion relay; the telegraph system in Morse characters; and the Roman character automatic telegraph.

Thomas Edison also exhibited the carbon telephone, the musical telephonograph, telephone repeater, and numerous apparatus for demonstrating the method of varying the resistance of a closed circuit by contact with carbon, illustrative of the experimental factors of the Edison carbon transmitter. Incandescent lamps, the process of the manufacture of lamps, and various designs of electric light chandeliers were also on display.

Hammer won the silver medal at the exposition for the first complete development of the incandescent electric lamp from its initial stages to date. At the exhibition the first hand-operated flashing electric lamp sign was displayed, which was invented and built by Hammer.

The collection contains photographs of the Edison dynamo, and the Edison Electric Lighting Plant of 1882 erected by Hammer. The official Catalogue of the International Electric and Gas Exhibition, and various articles from the Daily Telegraph, Daily Chronicle, and Daily News are also included within the collection (Series 4, Box 99 and Series 3, Box 42, Folder 1-2).

THE BERLIN EXPOSITION OF 1883.

The Berlin Exposition of 1883 had the first motored flashing electric sign designed, built and operated by Hammer. The electric sign spelled out the word "Edison" letter by letter and was used on the Edison pavilion in the Health Exposition. It has most features of today's flashing sign.

The collection contains two photographs of the first flashing sign (Series 4, Box 99).

THE FRANKLIN INSTITUTE INTERNATIONAL ELECTRICAL EXHIBITION OF 1884

The Franklin Institute International Electrical Exhibition was held in Philadelphia from September 2 to October 14, 1884. Many of Edison's companies had display booths at the exhibition. The Edison Electric Light Company showed in operation their system of house lighting as supplied from a central station. The Edison Company for Isolated Lighting exhibited their system of lighting factories, hotels, hospitals, and other places situated beyond the reach of a central lighting station. A full assortment of Edison lamps and dynamos also made up parts of other exhibits. Also displayed at the exhibition was the first flashing column of light, which Hammer designed and built.

Included within the collection are a variety of photographs of the exhibitions. Four pamphlets also are contained in the collection (Series 3, Box 1, Folder 3), (Series 4, Box 99).

THE EXPOSITION OF THE OHIO VALLEY AND THE CENTRAL STATES OF 1888

The Exposition of the Ohio Valley and Central States, in Cincinnati from July 4 to October 27, was in honor of the one hundredth anniversary of the settlement of Cincinnati. The exposition showed the progress and ramifications of the first hundred years of this settlement.

The space occupied by permanent buildings was greater than that covered by any building for exhibiting purposes on the Western continent. T',ie exposition developed the Electric Light Plant to make a special feature of electric lighting in the evening. Several companies used this opportunity to make exhibits of their apparatus and for their equipment to be used for illumination. The Edison Lamps were used for displays in showcases and pavilions of exhibitors of the Park Building.

The collection contains photographs of the halls of the exposition and a poster which is a souvenir of the electrical display of the exposition. An official Guide of the Centennial Exposition of the Ohio Valley and Central States is included within the collection. (Series 4, Box 99), (Series 3, Box 42, Folder 4).

THE SUMMER CARNIVAL AND ELECTRICAL EXHIBITION, ST. JOHN, NEW BRUNSWICK, 1889

The Summer Carnival and Electric Exhibition held at St. John, New Brunswick, Canada was to celebrate the opening of the Canadian Pacific Short Line to St. John and Portland. The Electrical Exhibition was the most popular of the displays present, containing the Monster Edison Lanm, the Mysterious Electric Fountain, and many other inventions.

The William J. Hammer Collection contains a poster that illustrates some of the leading exhibits at the Electrical Exhibition (Series 4, Box 99).

PARIS UNIVERSAL EXPOSITION OF 1889

The Universal Exposition of 1889 held in Paris was larger than all previous expositions held there. The famous Eiffel Tower was its principal attraction.

A large portion of the exhibit hall within the Palace of Mechanical Industries contained Thomas Edison's electrical inventions, including various electric lamps for use in houses. Variations of the telephone also were shown. During the Paris Exposition Europeans were exposed to the phonograph for the first time. Hammer represented Edison's interests at the Paris Exhibition.

The collection contains articles from New York World, New York Herald and Electrical World on Edison's exhibits at the Paris Exposition (Series 3, Box 44, folder 6). A scrapbook of photographs from the exhibition showing exhibit buildings and halls and loose photographs showing Edison's exhibits are included in the collection (Series 4, Box 98).

THE CRYSTAL PALACE EXHIBITION OF 1892

The Crystal Palace Exhibition of 1892 was held in London. Hammer displayed a great variety of products in the machine room of the Electrical Exhibition. Sockets for controlling individual incandescent lamps on alternating currents and the Ward Arc Lamp for use on incandescent circuits were just a few of the items displayed. Edison's companies displayed specimens of all types of incandescent electric lamps for public and private illumination. They also displayed primary batteries for use in telegraphy, telephony, household work, and engines.

The William, J. Hammer Collection contains a variety of photographs of the electrical exhibition. The Official Catalogue and Guide of the Electrical Exhibition is also contained within the collection (Series 4, Box 99), (Series 3, Folder 2, Box 42).

LOUISIANA PURCHASE EXPOSITION, 1904

The Louisiana Purchase Expostition of 1904, held in St. Louis, Missouri from April 30 to December 1, celebrated the centennial of the Louisiana Purchase. The nineteen million people who attended made it the largest exposition ever. The year 1904 marked the twenty-fifth anniversary of Edison's invention of the carbon filament lamp and central power station system.

F.J.V. Skiff, the exhibits classifier for the fair, developed a twofold classificatory arrangement. He organized exhibits in a sequential synopsis corresponding to the sixteen different departments of the exposition. The principal exhibition buildings were built in the shape of a fan. The departments of education, art, liberal arts, and applied sciences-including electricity - headed the classification, Skiff noted, because they "equip man for the battle and prepare him for the enjoyments of life.' Departments devoted to displays of raw materials such as agriculture, horticulture, !inning, forestry, fish and game came next. Anthropology, social economy, and physical culture concluded the classification.

The Hammer collection contains photographs of Hammer with other Chairmen of Domestic and Foreign Jurors of the Electricity Section of the International Jury of Awards of the Louisiana Exposition and Hammer as chairman of the jury on telegraphy, telephony, and wireless. (Series 4, Box 102). A pamphlet by the American Telephone and Telegraph Company on the exhibit of the Radiophone at the Department of Applied Science is also part of the collection (Series 3, Box 42, Folder 5).

THE PANAMA-PACIFIC EXPOSITION OF 1915

The Panama Pacific Exposition celebrated the opening of the Panama Canal and the four hundredth anniversary of the European discovery of the Pacific Ocean. It was held in San Francisco from February 20 to December 4, 1915. Approximately nineteen million people attended the exposition.

The eleven main buildings of the exposition were grouped around a central court of the Sun and Stars at the entrance of which was the famous Tower of Jewels. The main group of exhibits comprised the Palaces of Education, Liberal Arts, Manufactures, Varied Industries, Mines,

Transportation, Agriculture, Horticulture and all kinds of food products. During the exposition special days were set aside to honor industrialists Henry Ford and Thomas Edison. The Pacific Gas and Electric Company provided a large searchlight to flash out a Morse code greeting on the nighttime sky for their arrival.

The William J. Hammer Collection contains a pamphlet on the "Illumination of the Panama-Pacific International Exposition." The pamphlet describes the lighting of the exposition, and the use of arc lamps ' searchlights, incandescent electric lamps, and gas lamps (Series 4, Box 99), (Series 3, Box 43).

Provenance:

Collection donated by IBM, 1962.

Restrictions:

Collection is open for research.

Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Topic:

Fluorescence  Search this

Electrical engineering  Search this

Incandescent lamps  Search this

Phosphorescence  Search this

Selenium cells  Search this

Cathode rays  Search this

X-rays  Search this

Radium  Search this

Genre/Form:

Correspondence -- 1930-1950

Photographs -- 1850-1900

Photographs -- 20th century

Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

Identifier:

NMAH.AC.0069

See more items in:

William J. Hammer Collection

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep806480cfb-3204-4fc1-8e11-b58fffe1b338

EDAN-URL:

ead_collection:sova-nmah-ac-0069

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 16, Folder 1

Type:

Archival materials

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 1: William J. Hammer Papers / 1.4: Writings by Hammer

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep80b9f3ade-dd18-4c27-a4bf-b2b1f11d0a32

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref1779

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 18, Folder 4

Type:

Archival materials

Date:

1913

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 1: William J. Hammer Papers / 1.4: Writings by Hammer / Hammer's notebooks:

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep845635fcc-832b-4a22-abf0-f1bdffc6747b

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref1877

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 19, Folder 4

Type:

Archival materials

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 1: William J. Hammer Papers / 1.5: Secondary Writings About Hammer

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep8df27ab57-5bdc-40ae-9d7d-b90195d177e5

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref1905

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 19, Folder 6

Type:

Archival materials

Date:

1880 or 1881

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 1: William J. Hammer Papers / 1.5: Secondary Writings About Hammer

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep81d8577f9-08eb-42d3-a793-ef4d286bbdb5

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref1910

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 21, Folder 18

Type:

Archival materials

Date:

Oct. 4, 1892

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 1: William J. Hammer Papers / 1.7: Patent Materials

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep86771d83e-10c5-40c3-8baf-81be2fdf2fc0

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref1969

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 24, Folder 5

Type:

Archival materials

Scope and Contents note:

Includes drawings depicting standard of blackening, for Edison incandescent lamp (1880-1887); "Experiments with Light Sensitive Cells," H.M. Bayer, Radio News, April 1929; "Personal," Electrical Engineering, Feb. 1931

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 2: Edisonia / 2.2: Edison Effect - Etheric Force And Related Data

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep808a84d55-4d52-420e-a02c-b81a32847cdb

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref2022

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 25, Folder 1

Type:

Archival materials

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 2: Edisonia / 2.3: Edison Electric Light Company: Lamps, Distribution

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep8ebc68cd0-f51d-4b54-af9a-778258313f8e

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref2026

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 25, Folder 1

Type:

Archival materials

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 2: Edisonia / 2.3: Edison Electric Light Company: Lamps, Distribution

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep88711ed3c-80bf-409e-a6f8-a0eb8ca0a1a1

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref2028

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 27, Folder 3

Type:

Archival materials

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 2: Edisonia / 2.5: Menlo Park; Electric Train; Incandescence / Articles and writings on electric inventions

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep83b904b6d-251c-4d4c-abcc-760ede6e31fe

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref2137

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 27, Folder 4

Type:

Archival materials

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 2: Edisonia / 2.5: Menlo Park; Electric Train; Incandescence / Lamps and electric wires

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep87571d83b-ff3a-4747-ad1a-a4ebf209f92f

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref2141

Collection Creator:

Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)  Search this

Container:

Box 27, Folder 4

Type:

Archival materials

Date:

undated

Collection Restrictions:

Collection is open for research.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Collection Citation:

William J. Hammer Collection, Archives Center, National Museum of American History

See more items in:

William J. Hammer Collection

William J. Hammer Collection / Series 2: Edisonia / 2.5: Menlo Park; Electric Train; Incandescence / Lamps and electric wires

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep8be671c0f-8cf6-4c12-8bc9-ac35899e022e

EDAN-URL:

ead_component:sova-nmah-ac-0069-ref2142