Cady, Walter Guyton, 1874-1973 (physicist) Search this
Type:
Archival materials
Date:
1914-1974
Scope and Contents:
The patent records consist of letter patents issued to Cady and copies from the United States, Canada, and the United Kingdom, patent applications, specifications, notes, and invention disclosure statements from the Office of Naval Research. Cady worked with the Office of Naval Research while at the Scott Laboratory, Wesleyan University during the 1940s and 1950s.
Collection Restrictions:
Collection is open for research but is stored off-site and special arrangements must be made to work with it. Contact 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 copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Collection Citation:
Walter Guyton Cady Papers, 1903-1974, Archives Center, National Museum of American History.
National Museum of American History (U.S.). Division of Electricity and Modern Physics Search this
Extent:
220 Cubic feet (534 boxes, 25 map-folders)
Type:
Collection descriptions
Archival materials
Technical manuals
Clippings
Patents
Correspondence
Blueprints
Letters patent
Photographs
Sale catalogs
Technical drawings
Date:
circa 1880-1950
Summary:
The collection forms a documentary record of over half a century of the history of radio, with the greatest emphasis on the period 1900-1935. The collection includes materials that span the entire history of the growth of the radio industry. It is useful for those historians and other researchers interested in technological development, economic history, and the impact of applications of technology on American life.
Scope and Contents:
The materials accumulated in this collection represent the overriding collecting passion of one individual, George H. Clark. The collection forms a documentary record of over half a century of the history of radio, with the greatest emphasis on the period 1900-1935.
The collection includes materials that span the entire history of the growth of the radio industry. It is useful for those historians and other researchers interested in technological development, economic history, and the impact of applications of technology on American life.
In particular, the collection is rich in biographical information on the men who developed the technical aspects of radio and the industry; information on the inception, growth, and activities of radio companies, most notably the National Electric Signaling Company and RCA; and in photographs of all aspects of Radioana.
While most materials document technical aspects of radio, there is much information (e.g. Series 109, 134) on broadcasting and on the early history of television.
The collection, housed in over 700 boxes (about 276 linear feet), was organized into 259 numbered "classes" or series by Clark. Sixty series numbers were never used or were eliminated by Clark and combined with other series. The unused numbers are scattered throughout the filing system. The collection also includes material from series that were eliminated. These materials were never reclassified and are included as an unprocessed series at the end of the series descriptions. The collection also contains material that was never assigned a "class" designation by Clark (Lettered Series: D, E, F, G, H).
The arrangement of the collection is Clark's own; his adaptation of the Navy filing system he helped devise in 1915. Clark periodically revised the filing system and reclassified items within it.
Clark assigned class numbers to types of equipment (e.g. broadcast receivers), systems (impulse-excited transmitters and systems), scientific theories (circuit theory), and topics (company history, biography). Box 1 contains descriptions of the classification system.
When Clark classified an item and filed it he also assigned a serial number. This classification begins with 1 (or 1A) for the first item in the class and continues with successive numbers as items were added. As a consequence, the order of individual items within a series reflects the order in which Clark filed them, not any logical relationship between the items. Clark created cross references for items dealing with more than one subject by making notations on blank sheets of paper placed in related series.
Clark made cross references between series when there was no logical relationship between them; that is, when a person using the collection would not normally look in the series. For example no cross reference would be made of an engineer from series 87 (portraits) to series 4 (biography), but one would be made from series 87 to series 142 (history of television) if the item showed the engineer, say, working on a television installation.
Clark created the insignia "SRM" as the sign on the bottom of all sheets of paper numbered by him for binding. SRM stood for Smithsonian Radio Museum. This replaced the earlier though not greatly used sign "CGM." For a time about 1930, the class number on each sheet was preceded by these: "C.G.M.", for Clark, Martin, and Goldsmith, the earliest contributors to what would become the Clark Radioana Collection. After about 1933-34 Clark used C.W.C. for Clark Wireless Collection.
There are many photographs located in most series throughout the collection. But there are also three exclusive photographic series. Lettered series A, B, C. See index; and also series descriptions under lettered series.
Arrangement:
The collection is divided into 223 series.
Numbered Series 1-233:
Series 1, Library Operating System, 1915-1950
Series 2, Apparatus Type Numbers, 1916-1931
Series 3, Photographic Lists, 1925-1928
Series 4, Biographies of Radio Personages, Technical Index to Correspondents in Series 4
Series 5, History of Radio Companies, 1895-1950
De Forest Radio Company, 1905-1930s
Jenkins Televsion Corporation, 1924-1931
Marconi Wireless Telegraph Company, 1908-1929
National Electric Signaling Company, 1896-1941
Wireless Specialty Apparatus Company, 1906-1929
Radio Corporation of America, 1895-1950
Series 6, Shore Stations, 1900-1940
Series 7, Marine Stations, 1900-1930s
Series 8, Broadcasting Stations, 1910s-1940s
Series 9, Amateur Stations, 1910s-1940s
Series 10, Miscellaneous Information, 1911-1914
Series 11, Radio Antiques, 1921-1938
Series 13, Specifications of Radio Apparatus, 1910s-1930s
Series 14, General History, 1899-1950s
Series 15, Radio Companies Catalogues & Bound Advertisements, 1873-1941
Series 16, Log Books, 1902-1923
Series 17, Radio Companies' House Organs, 1896-1942
Series 18, Prime Movers, 1904-1911
Series 19, Batteries, 1898-1934
Series 20, Rectifiers, 1875-1935
Series 21, Motor Generators, 1898-1936
Series 22, Nameplates of Apparatus, 1928
Series 23, Switchboards and Switchboard Instruments, 1910-1935
Series 24, Radio Frequency Switches, 1905-1905-1933
Series 25, Transmitter Transformers, 1893-1949
Series 26, Operating Keys, 1843-1949
Series 27, Power Type Interrupters, 1902-1938
Series 28, Protective Devices, 1910-1925
Series 30, Message Blanks, 1908-1938
Series 31, Transmitter Condensers, 1849-1943
Series 32, Spark Gaps, 1905-1913
Series 33, Transmitter Inductances, 1907-1922
Series 34, Transmitter Wave Changers, 1907-1924
Series 37, ARC Transmitters, 1907-1940
Series 38, Vacuum Tube Type of Radio Transmitter, 1914-1947
Series 39, Radio Transmitter, Radio-Frequency, Alternator Type, 1894-1940
Series 41, Vacuum Tubes, Transmitting Type, 1905-1948
Series 43, Receiving Systems, 1904-1934
Series 45, Broadcast Receivers, 1907-1948
Series 46, Code Receivers, 1902-1948
Series 47, Receiving Inductances, 1898-1944
Series 48, Receiving Condensers, 1871-1946
Series 49, Audio Signal Devices, 1876-1947
Series 50, Detectors, 1878-1944
Series 51, Amplifiers, 1903-1949
Series 52, Receiving Vacuum Tubes, 1905-1949
Series 53, Television Receivers, 1928-1948
Series 54, Photo-Radio Apparatus, 1910-1947
Series 59, Radio Schools, 1902-1945
Series 60, Loudspeakers, 1896-1946
Series 61, Insulators, 1844-1943
Series 62, Wires, 1906-1945
Series 63, Microphones, 1911-1947
Series 64, Biography, 1925-1948
Series 66, Antennas, 1877-1949
Series 67, Telautomatics, 1912-1944
Series 69, Direction Finding Equipment, Radio Compasses, 1885-1948
Series 71, Aircraft Transmitters, 1908-1947
Series 72, Field or Portables Transmitters, 1901-1941
Series 73, Mobile Radio Systems, 1884-1946
Series 74, Radio Frequency Measuring Instruments, 1903-1946
Series 75, Laboratory Testing Methods and Systems, 1891-1945
Series 76, Aircraft Receivers, 1917-1941
Series 77, Field Portable Receivers, 1906-1922
Series 78, Spark Transmitter Assembly, 1909-1940
Series 79, Spark Transmitter System, 1900-1945
Series 82, Firsts in Radio, undated
Series 85: Distance Records and Tests, 1898-1940
Series 87, Photographs of Radio Executives, and Technical Types, 1857-1952
Series 90, Radio Terms, 1857-1939
Series 92, Static Patents and Static Reducing Systems, 1891-1946
Series 93, Low Frequency Indicating Devices, 1904-1946
Series 95, Articles on Radio Subjects, 1891-1945
Series 96, Radio in Education, 1922-1939
Series 98, Special Forms of Broadcasting, 1921-1943
Series 99, History of Lifesaving at Sea by Radio, 1902-1949
Series 100, History of Naval Radio, 1888-1948
Series 101, Military Radio, 1898-1946
Series 102, Transmitting & Receiving Systems, 1902-1935
Series 103, Receiving Methods, 1905-1935
Series 108, Codes and Ciphers, 1894-1947
Series 109, Schedules of Broadcasting & TV Stations, 1905-1940
Series 112, Radio Shows and Displays, 1922-1947
Series 114, Centralized Radio Systems, 1929-1935
Series 116, United States Government Activities in Radio, 1906-1949
Series 117, Technical Tables, 1903-1932
Series 120, Litigation on Radio Subjects, 1914-1947
Series 121, Legislation, 1914-1947
Series 122, History of Radio Clubs, 1907-1946
Series 123, Special Applications of Radio Frequency, 1924-1949
Series 124, Chronology, 1926-1937
Series 125, Radio Patents & Patent Practices, 1861-1949
Series 126, Phonographs, 1894-1949
Series 127, Piezo Electric Effect, 1914-1947
Series 128, ARC Transmitting & Reciving Systems, 1904-1922
Series 129, Spark Systems, 1898-1941
Series 130, Vacuum Tubes Systems, 1902-1939
Series 132, Radiophone Transmitting & Receiving System, 1906-1947
Series 133, Photo-Radio, 1899-1947
Series 134, History of Radio Broadcasting, 1908-
Series 135, History of Radiotelephony, Other Than Broadcasting
Series 136, History of Amateur Radio
Series 138, Transoceanic Communication
Series 139, Television Transmitting Stations
Series 140, Radio Theory
Series 142, History of Television
Series 143, Photographs
Series 144, Radio Publications
Series 145, Proceedings of Radio Societies
Series 146: Radio Museums
Series 147, Bibliography of Radio Subjects and Apparatus
Series 148, Aircraft Guidance Apparatus
Series 150, Audio Frequency Instruments
Series 151, History of Radio for Aircrafts
Series 152, Circuit Theory
Series 154, Static Elimination
Series 161, Radio in Medicine
Series 162, Lighting
Series 163, Police Radio
Series 169, Cartoons
Series 173, Communications, Exclusive of Radio (after 1895)
Series 174, Television Methods and Systems
Series 182, Military Portable Sets
Series 189, Humor in Radio (see Series 169)
Series 209, Short Waves
Series 226, Radar
Series 233, Television Transmitter
Lettered Series
Series A, Thomas Coke Knight RCA Photographs, circa 1902-1950
Series B, George H. Clark Collection of Photographs by ClassSeries C, Clark Unorganized and/or Duplicate Photographs
Series D, Miscellaneous
Series E, News Clippings Series F: Radio Publications
Series G, Patent Files of Darby and Darby, Attorneys, circa 1914-1935
Series H, Blank Telegram Forms from many Companies and Countries Throughout the World
Series I (eye), Miscellaneous Series
Series J, Research and Laboratory Notebooks
Series K, Index to Photographs of Radio Executives and Technical Types
Series L, Index to Bound Volumes of Photos in Various Series
Series M, Index to David Sarnoff Photographs
Series N, Federal Government Personnel Files
Series O, Addenda Materials
Biographical / Historical:
George Howard Clark, born February 15, 1881, at Alberton, Prince Edward Island, Canada, emigrated to the United States at the age of fourteen. He worked as a railroad telegraph operator for the Boston and Maine Railroad during high school and college. In his unpublished autobiography he wrote:
In 1888, when I was a lad of seven, I suddenly blossomed out as a scrapbook addict, and for years I gave up boyhood games for the pleasure of sitting in a lonely attic and 'pasting up' my books ... By 1897, in high school, I graduated to beautiful pictures, and made many large size scrapbooks ... Around that time, too, I became infatuated with things electrical, and spent many evenings copying in pen and ink the various electrical text books in the Everett, Mass., Public Library. Clark began collecting material pertaining to wireless or radio in 1902. In 1903 he graduated from the Massachusetts Institute of Technology with a Bachelor of Science degree in Electrical Engineering. During his last year of college he specialized in radio work under the instruction of Professor John Stone Stone and after graduation went to work for Stone's radio company, the Stone Telegraph and Telephone Company, of Boston.
In 1908 Clark took a competitive examination open to all wireless engineers in the United States and entered the civilian service of the Navy. He was stationed at the Washington Navy Yard, with special additional duty at the Navy's Bureau of Steam Engineering and at the National Bureau of Standards.
In 1915 Clark helped devise a classification system for Navy equipment, assigning a code number to each item. This system of classification for blueprints, photographs, reports, and general data, was prepared by Arthur Trogner, Guy Hill, and Clark, all civilian radio experts with the US Navy Department in Washington. In 1918 Clark adopted the 1915 Navy classification system for organizing the radio data he was accumulating. Clark created the term "Radioana" at this time. He began spending his evenings and weekends pasting up his collection and numbering pages. At this time he bound the accumulated material. It totaled 100 volumes.
In July 1919, after resigning from the Navy, Clark joined the engineering staff of the Marconi Telegraph Company of America, which became part of the Radio Corporation of America (RCA) later the same year. His first work was at Belmar and Lakewood, New Jersey, assisting the chief engineer, Roy A. Weagant, in his development of circuits to reduce the interference caused by static (static reduction). Clark and his wife were assigned to the unheated Engineer's Cottage. His wife decided not to stay and left for Florida. Clark moved his trunks of wireless material to the heated RCA hotel at Belmar and spent most of the winter "pasting." As Clark mentions, "From that time on I was wedded to scraps."
After a year of work in New Jersey, Clark was assigned to the sales department in New York, where he devised the "type number system" used by RCA. This type number system, for example, gave the designation UV 201 to the company's first amplifier tube.
From 1922 to 1934 Clark was in charge of RCA's newly created Show Division, which held exhibits of new and old radio apparatus at state fairs, department stores, and radio shows. About 1928 Clark started an antique radio apparatus museum for RCA. RCA's board of directors announced:
Recognizing the importance of providing a Museum for the Radio Art to house the rapidly disappearing relics of earlier days, and the desirability of collecting for it without further delay examples of apparatus in use since the inception of radio, the Board of Directors of RCA has made an initial appropriation of $100,000, as the nucleus of a fund for the establishment of a National Radio Museum. A plan for ultimately placing the museum under the wing of the Smithsonian Institution was coupled with the goal of the Institution's gathering the largest possible library of wireless data.
Around 1933 the RCA traveling exhibition program ended and Clark started classifying his collected "radioana" material. The objects of the museum were eventually turned over for exhibit purposes to the Rosenwald Museum in Chicago and the Henry Ford Museum in Dearborn, Michigan, when space was not forthcoming at the Smithsonian. A list of objects sent to the two museums (with tag and case numbers) is in Series 1, Box A. The "radioana" collection remained under Clark's care during the 1930s, and became of increasing use to RCA. Clark continued to add to the material.
Between 1934 and 1942 Clark was in court many times regarding patent infringements. Clark's wireless data was useful and he testified frequently, for example, in RCA's suit against the United States in the Court of Claims over the Marconi tuning patents and in the Westinghouse Company's suit against the United States over the heterodyne. Patent specifications and material regarding these and other radio industry suits are found throughout this collection.
In 1946 RCA retired George Clark and denied him space to house his "radioana" collection. Clark wished to remain in New York and house the collection somewhere in the city where it would be open at all times to the public and where it would be maintained. He hoped to continue cataloguing the collection and writing books from its information. He wanted to keep the collection under his control for as long as he was capable of using it.
George H. Clark died in 1956 and his collection was subsequently given to the Massachusetts Institute of Technology. In 1959 the collection was given to the Smithsonian's new Museum of History and Technology, where space was available to house it. The collection remained in the Division of Electricity until the spring of 1983 when it was transferred to the Archives Center.
Brief Company Histories From The Radio Industry, 1900-1930s:
Introduction
At the end of the nineteenth century, when Guglielmo Marconi began his first wireless company, Western Union, Postal Telegraph, and the American Telephone and Telegraph Company (AT&T) were the major enterprises in electrical communications. General Electric, Western Electric, and Westinghouse were the major producers of electrical equipment. All these earlier developments set the stage for the expansion of the radio industry.
General Electric, which dominated the lighting industry, was formed in 1892 as a merger of the Edison and Thomson-Houston companies. It was active in building central power station equipment; controlled nearly all the important early patents in electric railways; took a leading part in the introduction of trolley systems; and was the principal supplier of electric motors. Westinghouse promoted the alternating current system and installed the first AC central station in Buffalo, NY, during the winter of 1866-1867. After years of patent litigation, in 1896 GE and Westinghouse agreed to share their patents on electrical apparatus.
American Bell Telephone Company purchased Western Electric in 1881. Western Electric had a strong patent position in telephone equipment and in industrial power apparatus, such as arc lamps, generators, motors, and switchboard equipment.
Until RCA was formed in 1919, these established electrical companies played no active part in the early development of the American radio industry. They were in difficult financial positions, reorganizing, or concentrating their efforts and resources on improving their existing products.
The revolution in "wireless" technology, which began in earnest after 1900, centered in New York City, home of the Lee de Forest and American Marconi companies, and in Boston, headquarters of John Stone Stone and Reginald Fessenden.
Information in this section was compiled from the Clark Collection; the Invention and Innovation in the Radio Industry by W. Rupert Maclaurin, Macmillan Company, New York, 1949; and Radio Pioneers, Institute of Radio Engineers, Commemorating the Radio Pioneers Dinner, Hotel Commodore, New York, NY, November 8, 1945.
The De Forest Companies
Lee De Forest (1873-1961), inventor of the three-element vacuum tube or triode (1906) and the feedback circuit, was one of the first Americans to write a doctoral thesis on wireless telegraphy: "The Reflection of Short Hertzian Waves from the Ends of Parallel Wires," Yale University, 1899. The grid-controlled tube or audion of De Forest was first a radio detector, 1906-1907; in 1912 was adapted to an amplifier; and later to an oscillator. When it was perfected as a high vacuum tube, it became the great electronic instrument of electrical communications.
De Forest began work in the Dynamo Department at the Western Electric Company in 1899. Six months later he was promoted to the telephone laboratory. In 1900 De Forest went to work for the American Wireless Telegraph Company where he was able to carry out work on his "responder." However, after three months when De Forest refused to turn over the responder to the company, he was fired.
In the following year De Forest had a number of jobs, was active as an inventor, and created numerous firms to manufacture his inventions. In 1901 De Forest joined with Ed Smythe, a former Western Electric colleague and a collaborator in his research, to found the firm of De Forest, Smythe, and Freeman. Between 1902 and 1906 De Forest took out thirty-four patents on all phases of wireless telegraphy. The responder that he had been working on for so long never proved satisfactory.
The numerous De Forest companies, reflected his many interests and his inability to carry one project through to a conclusion. Unlike Marconi, but similar to Fessenden, De Forest had great inventive skill which resulted in a great number of companies; but none lasted long. The original partnership of 1901 led to the Wireless Telegraph Co. of America (1901), the De Forest Wireless Telegraph Company (Maine) (1902), and the American De Forest Wireless Telegraph Company (1903), to name a few.
The American De Forest Wireless Telegraph Company was incorporated after De Forest met a stock promoter, Abraham White. While many stations were built by this company, many never sent a message due to static interference. In 1907 two speculators from Denver with large holdings of company stock put the company out of business. The assets were sold to a new company that these speculators organized, the United Wireless Telephone Company. De Forest was forced to resign. He took the triode patents with him.
De Forest joined with one of White's stock salesmen, James Dunlop Smith, and together with De Forest's patent attorney, Samuel E. Darby, they formed a new corporation, the De Forest Radio Telephone Company in 1907. This company set out to develop wireless communication by means of the radio telephone.
In January 1910 De Forest staged the first opera broadcast, with Enrico Caruso singing. The Radio Telephone Company went bankrupt in 1911 following an aborted merger with North American Wireless Corporation. In 1913 he reorganized the company as the Radio Telephone and Telegraph Company and began producing the triode.
The Marconi Company brought a patent suit, claiming the triode infringed on the Fleming valve to which it had rights. In 1916 the court decided that Marconi had infringed the three element De Forest patent and that De Forest had infringed the two element Fleming valve. The result was that neither company could manufacture the triode.
In 1920 RCA acquired the De Forest triode rights through cross-licensing agreements with AT&T which had recently purchased the rights to it. De Forest's company was no match for GE, Westinghouse, and RCA. The De Forest Radio Company (1923) went bankrupt in 1928, was reorganized in 1930, and went into receivership in 1933. RCA eventually purchased its assets.
Marconi Companies
Guglielmo Marconi (1874-1937) came from a wealthy and well connected Italian family. He was able to spend his time developing his inventions and following his own course of action. Marconi spent his entire life developing wireless communication into a "practical" reality. In 1905 Marconi invented a directional antenna. In 1909 he shared with Karl Ferdinand Braun the Nobel prize in physics. And in 1912 he invented the time spark system for the generation of continuous waves. The principal patents in his name were improved types of vertical antennas; improved coherer; magnetic detector for the detection of wireless signals; and improvements on methods of selective tuning. Two other inventions of great importance to the Marconi companies' patent structure were the Oliver Lodge tuning patent and the Ambrose Fleming valve.
In 1895 Marconi made the first successful transmission of long wave signals. The following year he met William Preece, engineer-in-chief of the British Post Office, who was interested in inductive wireless telegraphy. This meeting led to the formation in 1897 of the Marconi Wireless Telegraph Company Ltd. In 1898 he transmitted signals across the English Channel. In 1899 an American subsidiary was formed. The various Marconi companies were the dominant enterprises in both British and American wireless until 1919 when RCA was formed.
From a business standpoint, wireless did not become profitable until long distance communications were accomplished. On December 12, 1901 in St. John's, Newfoundland, Marconi received a telegraph signal in the form of repetitions of the Morse telegraphic letter "S" transmitted from the Marconi station at Poldhu, Cornwall, England. This success, however, was met by opposition from vested interests, particularly the Anglo-American Telegraph Company whose cables terminated in Newfoundland.
So as not to restrict his company's future to one front alone, Marconi decided to exploit the field of communication with ships at sea. In order to control this field he decided in 1900 to lease his apparatus rather than sell it outright. This strategy did not work. Competition developed in Germany (Telefunken Corporation) and the United States (American De Forest and its successor, United Wireless) and Marconi was forced to sell rather than lease apparatus to the navies of various countries. He nevertheless retained numerous restrictions. This led to further friction. At the height of this debacle English stations worldwide refused to communicate with ships without Marconi equipment. This absurd and dangerous situation had to change and coastal stations opened up to all senders in 1908.
Marconi's system was based on spark technology. He saw no need for voice transmission. He felt the Morse code adequate for communication between ships and across oceans. He, along with most others, did not foresee the development of the radio and the broadcasting industry. He was a pragmatist and uninterested in scientific inquiry in a field where commercial viability was unknown.
For these reasons Marconi left the early experimentation with the radio telephone to others, particularly Lee De Forest and Reginald Fessenden.
National Electric Signaling Company
Canadian-born Reginald Fessenden (1866-1932), one of the principal early radio inventors and the first important inventor to experiment with wireless, left the University of Pittsburgh in 1900 to work for the U.S. Weather Bureau. There he invented the liquid barretter, an early radio receiver, and attempted to work out a means for wireless transmission of weather forecasts. After a squabble over patent rights, Fessenden resigned in 1902.
The National Electric Signaling Company (NESCO), primarily intended to support Fessenden's work on wireless, telegraphy, and telephony, was formed by Fessenden and two Pittsburgh capitalists, Hay Walker, Jr. and Thomas H. Given. It began as an inventor's laboratory and never proved successful as a business venture.
Fessenden recognized that a continuous wave transmission was required for speech and he continued the work of Nikola Tesla, John Stone Stone, and Elihu Thomson on this subject. Fessenden felt he could also transmit and receive Morse code better by the continuous wave method than with a spark-apparatus as Marconi was using.
In 1903 Fessenden's first high-frequency alternator needed for continuous wave transmission was built to his specifications by Charles Steinmetz of GE. In 1906 Fessenden obtained a second alternator of greater power from GE and on Christmas Eve broadcast a program of speech and music. The work on this alternator was given to Ernst F. W. Alexanderson. It took years for Alexanderson to develop an alternator capable of transmitting regular voice transmissions over the Atlantic. But by 1916 the Fessenden-Alexanderson alternator was more reliable for transatlantic communication than the spark apparatus.
Fessenden also worked on continuous-wave reception. This work arose out of his desire for a more effective type of receiver than the coherer, a delicate device that was limited by its sensitivity on a rolling ship at sea. In 1903 he developed a new receiving mechanism - the electrolytic detector.
As his work progressed Fessenden evolved the heterodyne system. However, due to faulty construction and the fact that it was ahead of its time, heterodyne reception was not fully appreciated until the oscillating triode was devised, thus allowing a practical means of generating the local frequency.
Between 1905 and 1913 Fessenden developed a completely self-sustaining wireless system. However, constant quarrels between Fessenden, Walker, and Given culminated in Fessenden's forming the Fessenden Wireless Company of Canada. He felt a Canadian company could better compete with British Marconi. As a result, his backers dismissed Fessenden from NESCO in January of 1911. Fessenden brought suit, won, and was awarded damages. To conserve assets pending appeal, NESCO went into receivership in 1912, and Samuel Kintner was appointed general manager of the company.
In 1917 Given and Walker formed International Signal Company (ISC) and transferred NESCO's patent assets to the new company. Westinghouse obtained majority control of ISC through the purchase of $2,500,000 worth of stock. The company was then reincorporated as The International Radio Telegraph Company. The Westinghouse-RCA agreements were signed in 1921 and International's assets were transferred to RCA.
RCA
The development of the radio industry accelerated after 1912. This was due to several factors, the most important of which was the passage of legislation by the US government requiring ships at sea to carry wireless. This created a market incentive and spurred the growth of the industry. Also, with the outbreak of World War I, the larger electrical companies turned their manufacturing output to radio apparatus, supporting the war effort. Three firms were prominent in this industrial endeavor: AT&T, GE, and Westinghouse.
AT&T's early contributions to this effort centered on their improvements of De Forest's triode, particularly in the evolution of circuits, the redesign of the mechanical structure, and an increase in the plate design. The importation of the Gaede molecular pump from Germany created a very high vacuum. The resulting high-vacuum tube brought the practical aspects of the wireless telephone closer to reality. By August 1915 speech had been sent by land wire to Arlington, Va., automatically picked up there via a newly developed vacuum-tube transmitter, and subsequently received at Darien, Canal Zone. By 1920 AT&T had purchased the rights to the De Forest triode and feedback circuit, and had placed itself in a strong position in the evolution of radio technology.
GE centered its efforts on the alternator, assigning Ernst F. W. Alexanderson to its design, and on further development of vacuum tube equipment for continuous wave telegraph transmission. By 1915 Alexanderson, Irving Langmuir, William D. Coolidge, and others had developed a complete system of continuous wave transmission and reception for GE.
As can be seen, both AT&T and GE were diverting major time and expenditures on vacuum tube research. This inevitably led to patent interferences and consequently, to cross-licensing arrangements.
Westinghouse was not in the strategic position of GE and AT&T. Nevertheless, during the war it did manufacture large quantities of radio apparatus, motors, generators, and rectifiers for the European and American governments. Postwar moves led Westinghouse into full partnership with the other two companies.
By the end of the war, all three companies had committed significant resources to wireless. They were hampered internationally, however, by the Marconi Company's dominant status, and in the United States they were blocked by opposing interests with control of key patents.
The US government also was concerned with this lack of solidarity in the wireless industry and over the British domination of the field worldwide. This impasse set a fascinating and complicated stage for the formation of the RCA.
Owen D. Young, legal counselor for GE, was instrumental in breaking the impasse. Through an innovative and far-reaching organizational consolidation, Young was able to persuade British Marconi that persistence in monopoly was a fruitless exercise, because of the strong US government feelings. Marconi, realizing the harm of a potential American boycott, finally agreed to terms. GE purchased the controlling interest in American Marconi, and RCA was formed. Young was made chairman of the board of RCA, while Edwin J. Nally and David Sarnoff of the old American Marconi were appointed president and commercial manager respectively.
On July 1, 1920, RCA signed a cross-licensing agreement with AT&T. The telephone company purchased one half million shares of RCA common and preferred stock for several considerations -- the most important being that all current and future radio patents of the two companies were available to each other royalty-free for ten years. Many provisions of these agreements were ambiguous and led to later squabbles between the RCA partners.
In May 1920 Westinghouse, which had an efficient radio manufacturing organization, formed an alliance with the International Radio and Telegraph Company (NESCO's successor). Westinghouse's part ownership gave them control of Fessenden's patents, particularly continuous-wave transmission and heterodyne transmission. Westinghouse also wisely purchased in October of 1920 Armstrong's patents on the regenerative and superheterodyne circuits -- which also included some of Columbia University professor Michael Pupin's patents. This placed Westinghouse in a strong bargaining position vis-à-vis RCA and in their new consolidated corporation. Westinghouse joined the growing group of radio companies on June 30, 1921. With these mergers, RCA agreed to purchase forty percent of its radio apparatus from Westinghouse and sixty percent from GE.
Through these and other legal arrangements, RCA obtained the rights to over 2,000 patents. These amounted to practically all the patents of importance in the radio science of that day. As a result, other firms in the radio industry, for example, the United Fruit Company and the Wireless Specialty Apparatus Company, entered into cross-licensing arrangements with RCA.
RCA also made arrangements internationally with the three dominant companies in radio communication in their respective countries. British Marconi, Compagnie Generale de Telegraphie sans fil, and Telefunken. Each corporation was given exclusive rights to use the other companies' patents within their own territories.
The rise of amateur radio in the 1920s and, to a greater extent, the demand for new products by the general public contributed to the rise of the broadcasting industry. This put a strain on the earlier agreements between the major radio corporations and between 1921 and 1928 there was a struggle over patents for control of the evolving medium.
An initial attempt by AT&T to control the broadcasting industry -- using its earlier cross-licensing agreements to manufacture radio telephone transmitting equipment -- began with AT&T's disposal of RCA stock holdings in 1922-1923. It ended in 1926 with a new cross-licensing agreement which gave AT&T exclusive patent rights in the field of public service telephony and gave GE, RCA, and Westinghouse exclusive patent rights in the areas covered by wireless telegraphy, entertainment broadcasting, and the manufacture of radio sets and receiving tubes for public sale.
In 1926 after the agreements were finalized, RCA, GE, and Westinghouse joined forces and established the National Broadcasting Company (NBC). Fifty percent of the stock went to RCA, thirty percent to GE, and twenty percent to Westinghouse. The new company was divided into three divisions: the Red, Blue, and Pacific Networks. Independent, competing networks soon emerged. William S. Paley and his family formed the Columbia Broadcasting System (CBS) in 1927. The Mutual Broadcasting System was formed in 1934.
By 1928 RCA had strong patent positions in all major areas of the radio industry, including the research, development and manufacture of vacuum tubes and speakers. Most small companies entering the industry in the 1920s produced their products based on prior research by others and on expired patents. An RCA license, therefore, was essential for the manufacture of any modern radio set or vacuum tube.
In the late 1920s new developments in the reproduction of sound, produced significant changes in the phonograph industry. Among those new developments were the introduction of the electronic record, and the marketing of the Radiola 104 Loudspeaker in 1926. In 1929 RCA purchased the Victor Talking Machine Company. This changed not only the quality but the sales of the phonograph and the phonograph record. A new entertainment industry was born and an ever-expanding market for consumer products was created with cultural implications that continue today.
Telefunken
German industrialists were eager to break the Marconi Company's monopoly. Although Marconi had patents on his inventions in Germany, the Germans developed a rival system through the Telefunken Corporation, incorporated in 1903, based on the inventions of Professor Ferdinand Braun, Dr. Rudolf Slaby, and Count George von Arco.
Before 1903 the Braun-Siemens and Halske system had been developed by Gesellschaft fur Drahtlose Telegraphie (GFDT). The Slaby-Arco system had been developed by Allgemeine Electrizitats-Gesellschaft. After litigation over patents, the German court handed down a decision in favor of the GFDT. The Kaiser, with national interests in mind, ordered that the rivalry cease. The two systems were amalgamated under GFDT, and became known as the Telefunken.
Chronology of Some Significant Events In The History of The Radio Industry
1895 -- Marconi experiments with Hertz's oscillator and Branley's coherer.
1897 -- In March Marconi demonstrates his wireless system on Salisbury Plain, near London, and files a complete patent specification. In May trials of Marconi's system are made over water between Lavernock and Flatholm, a distance of three miles. On May 13, communication is established between Lavernock Point and Brean Down, a distance of eight miles. German scientist Professor Slaby is present. The first Marconi station is erected at the Needles, Isle of Wight. A distance of fourteen and one-half miles is bridged by wireless. In December the Marconi station at the Needles communicates with a ship eighteen miles at sea.
1898 -- In England Oliver Lodge files a complete specification covering inventions in wireless telegraphy.
1899 -- The New York Herald uses Marconi's wireless telegraphy to report the progress of the International Yacht races between the Columbia and the Shamrock off New York harbor in September. US. Navy vessels make trials of Marconi's wireless telegraph system. The cruiser New York and the battleship Massachusetts are equipped with apparatus. Fessenden develops improvements in methods of wireless telegraph signaling.
1900 -- The Marconi International Marine Communication Company is organized on April 25th in London. Reginald Aubrey Fessenden begins work at the United States Weather Bureau. Over the next two years he invents the liquid barretter, an improved radio receiver.
1901 -- In February on board the SS Philadelphia, Marconi receives wireless signals over a distance of 1,551 miles. In March Marconi wireless telegraph service begins between islands of the Hawaiian group. On December 12, Marconi receives transatlantic signal at St. John's, Newfoundland from Poldhu, Cornwall, England. The Canadian government orders two Marconi telegraph sets for use at coastal points along the Strait of Belle Isle.
1901 -- Fessenden procures US patent no. 706737 for a system of radio signaling employing long waves (low frequency). De Forest develops a system of wireless telegraphy in Chicago. 1903-06 10,000 to 50,000 cycle machines, 1 kW, are developed by Steinmetz and by Alexanderson of GE for Fessenden. 1905 Marconi procures patent number 14788 in England, covering the invention of the horizontal directional antenna.
1906 -- At Brant Rock, Massachusetts, Fessenden employs a generator of one-half kW capacity, operating at 75,000 cycles, for radio purposes. He succeeds in telephoning a distance of eleven miles by means of wireless telephone apparatus.
1907 -- De Forest procures a U. S. patent for an audion amplifier of pulsating or alternating current.
1908 -- Marconi stations in Canada and England are opened for radio telegraph service across the Atlantic. Fessenden constructs a 70,000-cycle alternator with an output of 2.5 kW. at 225 volts, for radio signaling purposes. He reports successful radio telephone tests between Brant Rock and Washington, DC, a distance of 600 miles.
1909 -- US House of Representatives passes the Burke Bill for the compulsory use of radio telegraphy on certain classes of vessels. The United Wireless Telegraph Company and the Radio Telephone Company of New York (De Forest and Stone systems) begin the erection of radio stations in the Central and Western states. Marconi shares with Ferdinand Braun of Germany the Nobel prize in recognition of contributions in wireless telegraphy.
1910 -- An act of the US government requires radio equipment and operators on certain types of passenger ships. The Glace Bay, Nova Scotia, Marconi station is opened in September. This station communicates with Clifden, Ireland. The transatlantic tariff is seventeen cents a word.
1911 -- A radio section is organized by the US Department of Commerce to enforce the provisions of national radio legislation. Marconi Wireless Telegraph Company acquires the Lodge-Muirhead patents.
1912 -- Rotary gap is used with Fessenden 100 kW 500 cycle spark set at NAA, the Navy's first high-power station at Arlington, Virginia. Marconi Wireless of America acquires property of the United Wireless Telegraph Company. British Marconi secures the important radio patents of Bellini and Tosi, Italian inventors. Wreck of the SS Titanic on April 15th. The act of 1910 is extended on July 23 to cover cargo vessels. requires an auxiliary source of power on ships and two or more skilled radio apparatus operators on certain types of passenger ships. On August 13, an act provides for licensing radio operators and transmitting stations.
1912-1913 -- High vacuum amplifying tubes (an improvement on De Forest's), using the findings of pure science, are produced almost simultaneously in two great industrial laboratories, by Dr. H. D. Arnold of AT&T and Irving Langmuir of GE.
1915 -- De Forest Ultra-audion three-step (cascade) audio amplifier is announced and introduced into practice.
1916 -- GE and the Western Electric Company develop the first experimental vacuum tube radiotelephone systems for the Navy.
1917-1918 -- First production of vacuum tubes in quantity, both coated filament and tungsten filament types, by Western Electric Company and GE.
1918 -- Lloyd Espenschied procures US patent number 1,256,889 for the invention of a duplex radio telegraph system. (See Lloyd Espenschied Papers, Archives Center, NMAH, Collection #13.) The House of Representatives passes a resolution on July 5, authorizing the President to take over management of telegraph and telephone systems due to war conditions.
1919 -- Bills are introduced in Congress for permanent government control of radio stations. The widespread resentment of amateurs has more to do with the defeat of these bills than the objections of commercial companies. Roy Alexander Weagant, New York, reports having developed means of reducing disturbances to radio reception caused by atmospherics or static. This is the first successful static-reducing system. GE purchases the holdings of the British Marconi Company in the Marconi Wireless Telegraph Company of America, the name of the latter company being changed to Radio Corporation of America (RCA) in October. Edward J. Nally is elected president of the new company.
1920 -- E. F. W. Alexanderson is appointed Chief Engineer of RCA. RCA begins the installation of 200-kW Alexanderson alternators at Bolinas, California, and Marion, Massachusetts. The Tropical Radio Telegraph Company, a subsidiary of the United Fruit Company, New York, operates ten long-distance radio stations at points in Central and South Americirca RCA purchases 6,000 acres at Rocky Point, Long Island, New York, and begins erection of a Radio Central station, comprising a number of operating units for communication with European stations and stations in South Americirca On May 15, RCA inaugurates radio telegraph services between installations at Chatham and Marion, Massachusetts, and stations at Stavanger and Jaerobe, Norway. Westinghouse Company's radio station KDKA, Pittsburgh, Pennsylvania, broadcasts returns of the national elections, November 2. Development, design, and manufacture by GE of the early receiving and transmitting tubes made available to the public by RCA (UV-200,201,202). Radio telegraph stations and properties taken over by the government under war time powers are returned to their owners at midnight, February 29. The government calls for bids for the sale of large quantities of surplus radio and telegraph and telephone apparatus purchased for war needs and not used.
1921 -- RCA develops Vacuum tubes UV-200(detector) and UV-201(amplifier) -- both triodes with brass shells known as the UV base, and incorporating a filament that required 1 ampere at 5 volts for operation -- for storage battery operation; and at the same time also released to the public the WD-11 for dry cell operation, which employed an oxide-coated tungsten filament. RCA station at Rocky Point, Long Island, opens on November 5. WJZ station established by the Westinghouse Company in Newark, NJ. RCA broadcast station at Roselle Park, NJ (WDY) opens on December 15. It continues operation until February 15, 1922, when its operation is transferred to WJZ, Newark, previously owned by Westinghouse. RCA installs 200-kW alternator at Tuckerton, NJ.
1922 -- First use of tube transmitters by RCA for service from the United States to England and Germany. RCA begins substitution of tube transmitters on ships to replace spark sets. RCA begins replacement of crystal receivers by tube receivers on ships.
1923 -- Broadcast stations WJZ and WJY opened in New York in May by RCA. WRC opens in Washington on August 1. The UV-201A, receiving tubes developed by GE and consuming only 1/4 of an ampere are introduced by RCA. Tungsten filaments coated and impregnated with thorium were employed.
1924 -- Edwin H. Armstrong, demonstrates the superheterodyne receiver on March 6th. In November RCA experiments with radio photographs across the Atlantic. RCA markets the superheterodyne receivers for broadcast reception.
1925-26 -- Dynamic loudspeakers introduced. Magnetic pick-up phonograph recording and reproduction developed. RCA opens radio circuit to Dutch East Indies. Direction-finders introduced on ships.
1927 -- Fully self-contained AC radio receivers introduced.
Provenance:
The collection was donated to the Smithsonian in 1959.
Restrictions:
Collection is open for research but a portion of the collection remains unprocessed and is stored off-site and special arrangements must be made to work with it. Contact the Archives Center for information at archivescenter@si.edu or 202-633-3270.
Gloves must be worn when handling unprotected photographs, negatives, and slides.
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.
The records of Sohmer & Co., date from 1872 through 1989. They fall into fourteen series based primarily on function. Legal, financial, inventory & appraisal, manufacturing, marketing, advertising, and sales are the major series. Photographs, awards, family papers, publications about Sohmer, general publications, "miscellaneous" and correspondence are the remaining series. The records are especially strong in the areas of advertising, finances, and marketing. The collection does not contain corporate records, articles of incorporation, executive records, minutes, annual reports, or personnel records such as payrolls or job descriptions.
Arrangement:
The collection is divided into 14 series.
Series 1: Stock and Legal Records, 1882-1985
Series 2: Financial Records, 1887-1962
Series 3: Inventory & Appraisal Records, 1891-1980
Series 4: Manufacturing Records, 1872-1967
Series 5: Marketing, 1901-1989
Series 6: Advertising Records, 1880-1983
Series 7: Sales Records, 1923-1982
Series 8: Photographs, circa 1920-1964
Series 9: Awards, 1876-1976
Serioes 10: Sohmer Family Papers, 1945-1970
Series 11: Publications about Sohmer, 1883-1986
Series 12: General Publications, 1912-1985
Series 13: Miscellaneous Records, 1894-1983
Series 14: Correspondence, 1892-1987
Historical:
When Sohmer & Co. was founded in 1872 by Hugo Sohmer and his partner Joseph Kuder, it became one of 171 piano manufacturers in New York City. Over the next 110 years, Sohmer & Co. was one of the few active and successful family-owned and operated piano-making ventures in the United States. Nationally known for tonal quality and fine craftmanship, the firm's product, in the music trade, came to be referred to as "The Piano-Maker's Piano."
Biographical:
Born to an eminent physician in Dunningen, Wurtemberg, Germany on November 11, 1846, Hugo Sohmer enjoyed a first class education. Riding the last major wave of German immigration, which had brought piano makers such as Albert Weber, George Steck, John and Charles Fischer, and Henry E. Steinway to America, Hugo arrived in New York City in 1862. He became an apprentice in the piano making house of Schuetze & Ludolf. To learn more about European piano making, Hugo returned to Germany in 1868 and travelled extensively throughout Europe. In 1870 he returned to New York and by 1872 the 26 year old Sohmer and his partner, Josef Kuder, began manufacturing pianos in the 149 East 14th Street factory previously utilized by J.H. Boernhoeft and most recently by Marschall & Mittauer.
Josef Kuder, originally from Bohemia, Austria Hungary, learned piano making in Vienna between 1847 and 1854. Kuder arrived in New York in 1854 and became a pianomaker with Steinway & Sons which had been founded in 1853. In 1861 he returned to Vienna; he worked there until returning to New York in 1864, where he worked for Marschall & Mittauer until joining Sohmer.
Concentrating on tonal quality and response, Sohmer & Co. began producing pianos which were recognized in 1876 by an award from the Centennial Exhibition in Philadelphia. In the waning years of the nineteenth century Sohmer & Co. received other awards including a diploma from the Exposition Provinciale in Montreal, Quebec in 1881, the gold medal at the Great New England Fair in Worcester, Massachusetts in 1889, and an award from the World's Columbian Commission in 1893 in Chicago.
By 1883 additional factory space, located on East 23rd Street and formerly used by Carhart & Needham, was occupied to accomodate increased production. In three years this space proved inadequate and forced the renting of an extension to the original factory. The main office and salesrooms were located at 31 West 57th Street in New York City. Meanwhile, in 1884 Sohmer invented the first five foot "baby" grand piano which was applauded for its musical brilliance and depth of tone. In the early 1900's Sohmer produced grand pianos in four sizes: Concert, Parlor, Baby & Cupid.
Limited space and increased production soon became issues again, and in 1887 the company moved its factory and special machinery to Astoria, Long Island. This factory, located at 31st Avenue and Vernon Boulevard, remained in continuous operation until 1982, when the Adirondack Chair Co. bought the building and Pratt Read acquired the company.
During the 1880s a number of letters patent were granted to Sohmer for such piano improvements as the agraffe bar for tone augmentation, and the aliquot string, which were auxiliary strings "arranged in conjunction with the regular strings for the purpose of giving forth reverberatory or sympathetic waves of sound, thus augmenting the general tone results of each unison." (Spillane, History, 256.)
In 1894 Hugo Sohmer took competitor Sebastian Sommer to court for stenciling the name "Sommer" on the fallboard of his pianos. Sohmer declared that "Sohmer" was a trademark used as an emblem to distinguish the piano from others, especially the Sommer piano which he considered inferior. The court in this equity case dismissed the case on the grounds that Sohmer had not proven damages accruing from the advertising and sale of the Sommer piano.
By 1907 Sohmer & Co. was producing 2,000 pianos per year. Additionally, with Farrand & Co. of Detroit, Sohmer was making the Sohmer Cecilian player piano. On June 8, 1913 Hugo Sohmer died in Scarsdale, N.Y.; 20 days later, Josef Kuder died as well. Hugo was survived by his wife, Elizabeth; a daughter, Adelaide S. Weber; and a son, Harry J. Sohmer, born in 1886. Company leadership was assumed by Harry J. Sohmer after Hugo's death.
During the 1920s Sohmer began a special department in its plant for the manufacture of period pianos. According to Harry Sohmer, the 1930s were difficult. He recalled that, once only one piano in 29 days was shipped. The number of American piano manufacturers dropped from 140 to 22 during this time. It was during this time that Harry's cousins, Frank and Paul Sohmer joined the company as consultants. However, through its pioneering efforts in the introduction of a console vertical piano known as a "Spinet," Sohmer revitalized the industry. (Taylor, "Piano Family.") This console vertical piano has been called "The Musicians' Console.
Primarily because of its concentration on the console vertical pianos Sohmer & Co. never cultivated famous performers in the way that Steinway and Baldwin did. While publicly acknowledging that it never entered into the competition for artistic endorsement (an acknowledgement which perhaps worked to its favor), Sohmer & Co. relied upon a most comprehensive and innovative advertising strategy stressing integrity, quality and craftsmanship in the pursuit of the ideal tone and touch.
In 1940 Harry incorporated the company as Sohmer & Co. and led it, with his sons Harry J. Sohmer, Jr., (born 1917) as production manager and Robert H. Sohmer (born 1920), as process engineer. By 1969 Harry Jr. was vice president in charge of production and Robert was production engineer/
treasurer. In 1971 Harry Sr. died and Harry Jr. became president.
In 1982 Pratt Read Corporation, a long established manufacturer of piano keyboards, acquired Sohmer & Co. for an undisclosed amount, and moved the operations to its Ivoryton, Connecticut factory, while retaining the Sohmer name. The Sohmer brothers retained their positions in the company. At the time of its purchase Sohmer & Co. employed 120 people, produced 2500 pianos yearly, and grossed $5 million in sales. Harry J. Sohmer, Jr., grandson of the founder, in expressing his feelings about the move and the Sohmer piano, compared his piano to old New York beers saying that "they were strictly New York products and in a way so were we." He concluded by saying, "We were always identified with this city. Sohmer was a New York piano." (Prial, "Sohmer Piano.")
By July 1983 under Pratt Read's management Sohmer was producing 6 pianos per day, only 50% of the expected capacity according to H.B. Comstock, president of Pratt Read. In 1986 the Ivoryton factory was sold to a group of investors organized as Sohmer Holding Co., who continued to make pianos there until a lack of skilled workers and financial losses forced its closing in December 1988. In an effort to fill the backlog of orders, Sohmer president Tom Bradshaw opened a new facility in Elysburg, Pennsylvania. A retail showroom was maintained in Ivoryton. In 1989, the Sohmer company was sold to the Falcone Custom Grand Piano Company of Haverhill, Massachusetts.
References
Cox, Erin. "Labor Woes a Main Factor in Sohmer Closing," The Pictorial Gazette West, 3 (December 8, 1988), 1, 22.
Dolge, Alfred. Piano and their Makers. 1911; rpt. New York: Dover Publications, 1973.
Loesser, Arthur. Men, Women and Pianos: A Social History. New York: Simon & Schuster, 1954.
Musical Merchandise Review. "Sohmer Pianos Underway at Conn. Pratt Read," July 1983, 91.
The Music Trades. "Pratt, Read Acquires Sohmer & Co. Piano Maker,"August 1982, 18.
Piano and Organ Purchaser's Guide, 1907, 1930. Prial, Frank J. "Sohmer Piano, and 110 Years of Craft, will leave Astoria," New York Times, August 13, 1982, B1, B4.
Purchaser's Guide to the Music Industries. 1956, New York: The Music Trades, 1956, 58 60.
Spillane, Daniel. History of the American Pianoforte: Its Technical Development, and the Trade. 1890; rpt. New York: Da Capo Press, 1969.
Taylor, Carol. "Piano Family Stays in Tune," New York World Telegram & Sun, August 15, 1958.
Materials in the Archives Center, National Museum of American History:
Pratt Read Corp. Records (AC0320)
Chickering & Sons Records (AC0264)
Steinway Piano Co. Collection (AC0178)
Provenance:
Collection donated by Pratt Read Corporation, August 11, 1989.
Restrictions:
Collection is open for research.
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.
Madison Cooper Company (Watertown, N.Y.) Search this
Extent:
0.25 Cubic feet (1 box)
Type:
Collection descriptions
Archival materials
Correspondence
Articles
Clippings
Photographs
Pamphlets
Patents
Date:
1900-1963
Summary:
Madison Cooper was an inventor and manufacturer of refrigerating systems in the early twentieth century. Cooper received several patents for his refrigeration inventions, including several refrigerating apparatuses, an air-circulating system, a process for preventing the formation of frost on refrigerating surfaces and a refrigeration train car. The collection spans 1900-1963 and includes his United States and foreign patents, his publications related to refrigeration, and a few documents and photographs related to Cooper and the Madison Cooper Company.
Scope and Contents:
Series 1, Historical background, 1900-1963, consists of biographical information about Madison Cooper. The series includes obituaries, two diagrams of optimal temperature for food storage that were produced by the Madison Cooper Company, and three photographs that show Cooper and workers in the shop and office in Watertown and the plant in Calcium.
Cooper published articles related to refrigeration and specifically to his refrigeration systems titled "Chloride of Calcium in Refrigeration," 1900, "Natural Ice Cold Storage and the Cooper Systems of Refrigeration," 1901, "Ice Refrigeration," (1902), the Madison Cooper Company publication "Cold"(1914), and "The Cooper Systems of Refrigeration," undated.
Series 2, Patents, 1900-1908, contains United States and foreign patents related to Madison Cooper.
The United States patents contain drawings and specifications of Cooper's refrigerating inventions and are arranged by patent number.
Patents include:
Refrigerating apparatus (US Patent, 11,822)
Process of preventing formation of frost on refrigerating surfaces (US Patent 644,847)
Old-storage apparatus (US Patent 659,468)
Indirect air-circulating systems of cold-storage apparatus (US Patent 677,536)
Cold-storage apparatus air circulating system (US Patent 754,749)
Refrigerator cars (US Patent 881,902)
Foreign patents are arranged alphabetically by country. Patents for the process of preventing formation of frost on refrigerating surfaces include:
Austria
Process of preventing formation of frost on refrigerating surfaces (4,075)
Canada
Process of preventing formation of frost on refrigerating surfaces (66,959)
Canada
Improvements in indirect air circulating systems for cold storage apparatus (75,602)
Canada
Improvements in refrigerating apparatus (75,636)
France
Process of preventing formation of frost on refrigerating surfaces (297,158)
Germany
Process of preventing formation of frost on refrigerating surfaces (117,943)
Great Britain
Process of preventing formation of frost on refrigerating surfaces (2,840)
Also included are an assignment of letters patent related to the refrigerating apparatus (US Patent 11,822) shared with George A. Dole and a contract related to the patents for the process of preventing frost formation on refrigerating surfaces.
Arrangement:
The collection is organized into two series.
Series 1, Historical background, 1900-1963
Series 2, Patents, 1900-1908
Biographical / Historical:
Madison Cooper was an inventor and manufacturer of refrigerating systems in the early twentieth century. Born in Leray, New York, on March 19, 1868, Cooper moved as a young man to Minneapolis, Minnesota where he entered the butter and egg shipping business. He invented a cold storage system while working in the produce business. Cooper shifted careers to focus on cold storage engineering where he planned, designed and installed refrigeration systems in over 100 plants in the United States and Canada. Cooper moved the Madison Cooper Company to Watertown, New York around 1903 and in 1909, built a plant for the manufacturing of refrigerating equipment in Calcium, New York. The advent of mechanical and electric refrigeration in the 1920s superseded Cooper's system and his company dissolved in 1936, although at least one of Cooper's systems was still in operation in 1953. Cooper died on July 8, 1946 and was remembered not only for his contributions to refrigeration, but also as a horticulturist and editor and publisher of The Flower Grower.
Cooper received several patents in the United States and abroad for his refrigeration inventions, including several refrigerating apparatuses, an air-circulating system, a process for preventing the formation of frost on refrigerating surfaces and a refrigeration train car. He focused on simple and inexpensive construction that provided economic and efficient operation. Many of his inventions involved the use of a false floor that allowed cool air to flow underneath it and a perforated ceiling that released warm air. Other patents included cold air circulation within walls to cool buildings and apartments and focused on controlling temperature, humidity and air purity.
Provenance:
The collection was donated by Daniel Cooper, son of Madison Cooper, in 1963.
Restrictions:
The collection is open for research use.
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 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:
The Gordon Hendricks Motion Picture History Papers, 1895-1970, National Museum of American History.
Pickard, Greenleaf Whittier, 1877-1956 Search this
Container:
Box 5, Folder 2
Type:
Archival materials
Date:
1896
Scope and Contents:
Improvements relating to the Production, Regulation, and Utilization of Electric Currents of High Frequency, and to Apparatus therefore
Collection Restrictions:
The collection is open for research use.
Collection Rights:
Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. No copyright, patent, trademark or related interests were conveyed in the deed of gift. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Collection Citation:
Greenleaf Pickard Notebooks, Archives Center, National Museum of American History.
U.S. Circuit Court (Dist. of Conn.) Edison Elec. Light Co.& Edison G.E. vs. Waring Elect. Co
Collection Creator:
Hammer, William J. (William Joseph), 1858-1934 (electrical engineer) Search this
Container:
Box 37, Folder 3
Type:
Archival materials
Date:
1893
Scope and Contents note:
Complainants' Rebutting Affidavits on Motion for preliminary injunction for infringement of letters patent # 223,898; Moving papers on motion for preliminary injunction for infringement of letters patent # 223,898
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
U.S. Letters Patent of DuMont Laboratories to RCA Licensed and Unlicensed beyond 1954 (summary lists and patents)
Collection Creator:
Du Mont, Allen B. (Allen Balcom), 1901-1965 Search this
Container:
Box 8 (Series 4), Folder 7
Type:
Archival materials
Collection Restrictions:
Collection is open for research. Gloves must be worn when handling unprotected photographs and negatives. Special arrangements required to view materials in cold storage. Using cold room materials requires a three hour waiting period. Only reference copies of audiovisual materials may be used. Contact the Archives Center for more information at archivescenter@si.edu or 202-633-3270.
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:
Allen Balcom Du Mont Collection, 1929-1965, Archives Center, National Museum of American History.
U.S. Letters Patent of DuMont Laboratories to RCA Licensed and Unlicensed beyond 1954 (summary lists and patents)
Collection Creator:
Du Mont, Allen B. (Allen Balcom), 1901-1965 Search this
Container:
Box 9 (Series 4), Folder 1-3
Type:
Archival materials
Collection Restrictions:
Collection is open for research. Gloves must be worn when handling unprotected photographs and negatives. Special arrangements required to view materials in cold storage. Using cold room materials requires a three hour waiting period. Only reference copies of audiovisual materials may be used. Contact the Archives Center for more information at archivescenter@si.edu or 202-633-3270.
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:
Allen Balcom Du Mont Collection, 1929-1965, Archives Center, National Museum of American History.
Genealogical material; letters; business records; notes; writings; art works; scrapbooks; printed material and photographs.
Notes and charts concerning the Spier and Cameron families, 1928-1938; letters, 1868-1947, include a few childhood notes, letters to his parents describing his courses, instructors; to classmates while at the Art Students League in New York, while studying art in Paris, and to his wife, Marie, in Chicago; and letters to Cameron from colleagues.
Among the business records are an application for letters patent, with colleague Mark Salomon, for a device used in the transformation of theater scenery, 1905, and copyright cards for paintings, 1911-1917; notes; a notebook, 1936; 38 cards, 1917-1920, containing information about art works; an undated draft and a typescript, 1940, for an autobiographical acccount "The Cusp of Gemini".
Art works by Cameron include a sketchbook, 1882-1883, primarily of costumed figures, 10 unbound sketches, 21 oil sketches, undated and 1899, some of which are studies for murals, an etching, and 2 copies of a lithograph portrait of a woman. Works by others include a pencil portrait, 1918, of Cameron by Fitzpatrick, and an ink sketch "Winter Morning" by Svend Svensen. Five scrapbooks, 1894-1968 contain clippings and photographs of Cameron, his wife, family members, and works of art.
Also included are clippings, 1888-1950, exhibition announcements and catalogs, 1899-1946, a catalog, 1926, for works by John Singer Sargent, and other printed material; material concerning Cameron's instructor Jean Paul Laurens, and reproductions of works of art including 43 engraved copies of classic works. Photographs, 1890-1918, include 19 of Cameron, 22 of his wife, 18 of family and friends, miscellaneous travel views, and works of art by the Camerons and others.
Biographical / Historical:
Mural painter; Chicago, Ill. Studied at the Chicago Academy of Design, the Art Students League of New York, and was a student of Cabanel, Constant and Laurens in Paris. His wife, Marie Gelon Cameron, was born in Paris, and was also a student of Cabanel, Constant and Laurens.
Provenance:
Donated 1988 by Arthur B. Carpenter and Marjorie L. Kimberlin, Cameron's nephew and niece.
Restrictions:
Use of original papers requires an appointment and is limited to the Archives' Washington, D.C., Research Center. Microfilmed materials must be consulted on microfilm.
Occupation:
Art students -- New York (State) -- New York Search this
Freedmen's Bureau Digital Collection, 1865–1872, is a product of and owned by the National Museum of African American History and Culture, Smithsonian Institution. Copyright for digital images is retained by the donor, FamilySearch International; permission for commercial use of the digital images may be requested from FamilySearch International, Intellectual Property Office, at: cor-intellectualproperty@ldschurch.org.
Collection Citation:
Courtesy of the U. S. National Archives and Records Administration, FamilySearch International, and the Smithsonian National Museum of African American History and Culture.
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:
Morton Family Collection, 1849-1911, Archives Center, National Museum of American History
Cozzens, B. and S.D., Before the Commissioner of Patents in the Matter of Extension of Letters Patent of the U.S. Granted to William T.G. Morton, on the 12th day of November 1846, for "An Improvement in Surgical Operations" Statement and Account, 1860....
Collection Creator:
Morton, William Thomas Green, 1819-? (dentist) Search this
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:
Morton Family Collection, 1849-1911, Archives Center, National Museum of American History
The Archives of American Art makes its archival collections available for non-commercial, educational and personal use unless restricted by copyright and/or donor restrictions, including but not limited to access and publication restrictions. AAA makes no representations concerning such rights and restrictions and it is the user's responsibility to determine whether rights or restrictions exist and to obtain any necessary permission to access, use, reproduce and publish the collections. Please refer to the Smithsonian's Terms of Use for additional information.
Collection Citation:
Jacques Seligmann & Co. records, 1904-1978, bulk 1913-1974. Archives of American Art, Smithsonian Institution.
Sponsor:
Processing of the collection was funded by the Getty Grant Program; digitization of the collection was funded by the Samuel H. Kress Foundation and the Terra Foundation for American Art. Glass plate negatives in this collection were digitized in 2019 with funding provided by the Smithsonian Women's Committee.
