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Aladdin Radio Industries-Engineering notebook

Collection Creator:
Johnson, Victor S., Sr., 1882-1943  Search this
Johnson, Victor, Jr., 1906-  Search this
Aladdin Industries, Inc. (Nashville, Tenn.).  Search this
Container:
Box 33, Folder 11
Type:
Archival materials
Date:
1938
Collection Restrictions:
Collection is open for research but the oversize map folders are 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:
Aladdin Industries, Inc. Records, 1889-2002, Archives Center, National Museum of American History.
See more items in:
Aladdin Industries, Inc. Records
Aladdin Industries, Inc. Records / Series 3: Victor S. Johnson Jr. Files / 3.3: About Aladdin Divisions
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-0844-ref439

Del Mar Avionics Holter Monitor Records

Inventor:
Del Mar, Bruce E., 1913-  Search this
Source:
Del Mar Avionics Corporation  Search this
Former owner:
Del Mar Avionics Corporation  Search this
Extent:
3 Cubic feet (8 boxes)
Type:
Collection descriptions
Archival materials
Correspondence
Date:
1951-2011
Summary:
Collection documents the development of the Holter Monitor, a portable device for continuously monitoring heart activity for an extended period, through engineering logbooks, drawings, operator manuals, correspondence, photographs, sales brochures and catalogs, biographical information about the engineering staff who worked on the monitor, patents and trademarks, and marketing and sales materials.
Scope and Contents:
The collection includes engineering logbooks, drawings, operator manuals, correspondence, photographs, sales brochures and catalogs, biographical information about the engineering staff who worked on the monitor, patents and trademarks, and marketing and sales materials documenting the development of the Holter Monitor, a portable device for continuously monitoring heart activity.

The records document the successful collaboration of an independent inventor and a manufacturing firm to identify problems, develop solutions and bring to market diagnostic technologies. Bruce Del Mar's role as an innovator and collaborator with Holter is especially important, because Del Mar's work spurred the development of an entire diagnostic industry. In addition, the records also chronicle how "Holter technology" was affected by progressive technological innovations in the industry, as vacuum tubes were replaced by transistors, as microprocessors gave way to microchips and circuit boards, and as analog recordings were replaced by digital formats.

Documenting manufacturing developments (highs and lows) and marketing considerations is an important element in better understanding the invention process. Del Mar Avionics was the first to design and manufacture instrumentation for long-term monitoring of the human heart for the medical profession. Today, Holter Monitors continue to be an important diagnostic tool for monitoring the health of the heart.

Series 1, Historical Background, 1951-2010 and undated, consists of biographical materials for Bruce Del Mar, founder of Del Mar Avionics, company histories, copies of the Del Mar Avionics newsletter Pacemaker, employee information, newspaper clippings and ephemera, and photographs of some employees. The employee information contains a 1979 handbook, explaining company policies and the benefits of employment with Del Mar Avionics and a 1951 memo detailing overtime working hours for women, presumably from Douglas Aircraft, where Bruce Del Mar was employed.

Series 2, Del Mar Avionics Engineering, 1958-1976, is divided into three subseries, Subseries 1, Correspondence, 1965-1976; Subseries 2, Reports, 1964-1969; and Subseries 3, Drawings, 1958-1968. The documentation consists primarily of correspondence from the engineering department, 1965 to 1976, related to the development, design, budgeting, testing, and marketing of the Holter Monitor. The majority of the documentation is correspondence and is written by engineering staff members, but also included are quotation requests, trip reports, and technical reports. Correspondence between Holter and Del Mar about the development of the Holter Minotor is in Series 6. The drawings, 1958-1968, include six drawings (22" x 34" or smaller) for Avionics Research Products projects (panel assembly, chassis assembly, and battery chargers for model 602), and Electromation Company (degausser single coil).

Series 3, Patents and Trademarks, 1965-2002 and undated, consists of copies of patents by Norman J. Holter, W.E. Mills, and W.E. Thornton, Cliff Sanctuary. and Isaac Raymond Cherry related to the development of the Holter Monitor. Also included are lists of United States patents issued to Del Mar Avionics employees, as well as lists of registered trademarks and activities for Del Mar Avionics and copies of trademarks issued to the company.

Series 4, Product Literature, 1968-2010 and undated, consists of product literature for Del Mar Avionics products and some of its competitors. The product literature for Del Mar Avionics is arranged chronologically by model number, and the competitor literature is arranged alphabetically. All of the product literature is related to medical instrumentation with the exception of the Hydra Set, a precision load positioner which is the only product Del Mar Avionics sells today.

Series 5, Sales, 1967-1985, consists of price lists, price catalogs (both domestic and international) and sales objectives for medical instrumentation sold by Del Mar Avionics.

Series 6, Holter Monitor Materials, 1958-2005 and undated, is divided into three subseries, Subseries 1, Background Materials, 1958-2005 and undated; Subseries 2, Model 445, 1974-1978; and Subseries 3, Model 660, 1967-1978 and undated, and consists of materials documenting the relationship between Norman J. Holter, an inventor, and Del Mar Avionics.

Holter and Wilford R. Glassock were issued United States Patent 3,215,136 on November 2, 1965 for the Electrocardiographic Means. Dr. Eliot Corday introduced Holter to Bruce Del Mar, founder of the Del Mar Avionics Corporation in Irvine, California. Del Mar engineers developed the "electrocardiocorder" for clinical use, producing a commercially viable monitor which came to be known as the Holter Monitor Test. Further refinements led to the creation of a "minimonitor" in 1968 which was described by Holter as being the "size of a cigarette package." Commercial production of the Holter minimonitor, AVSEP, Jr., began in 1969. The Holter Research Foundation ultimately sold exclusive rights to their patents to Del Mar Engineering Laboratories.

The materials include biographical materials about Norman J. Holter, journal articles about the Holter Monitor, correspondence, engineering notebooks, a licensing agreement, product literature, reports, price lists, catalogs, operating manuals and specific information about the Dynamic Del Mar Avionics ElectroCardioCorder (Model 445), 1977, and the ElectroCardioScanner (Model 660), 1971. Both models were developed by Del Mar's medical device manufacturing staff. The licensing agreement and correspondence detail in chronological order the relationship between Norman Holter and Del Mar Avionics, specifically president Bruce Del Mar, in the rapid commercial marketing and development of Holter's electrocardiorecorder. Although Holter assigned exclusive rights to his patent to Del Mar Avionics, he was involved in the design and development process, albeit from a distance. The engineering staff at Del Mar kept Holter informed, and it is clear that Holter regularly visited the company.

The engineering notebooks relate to the models 445 and 660. The notebooks were maintained by engineering staff members D. Anderson, N. Mohammedi, Ray Cherry and Fike. The notebooks are handwritten, although in some instances memos and other information have been inserted. For example, N. Mohammedi's notebook documenting Model 445 contains black-and-white prints, magnetic tape samples, and recorder tape (EKG graph paper) samples with data from the monitor. The notebooks are bound and paginated, and individual pages are stamped sequentially.

Series 7, Slides, circa 1990s, consists of color slides used for presentations by Del Mar Avionics staff to discuss and promote the marketing of the Holter Monitor.
Arrangement:
The collection is arranged into seven series.

Series 1, Historical Background, 1951-2010 and undated

Series 2, Del Mar Avionics Engineering, 1958-1976

Subseries 1, Correspondence, 1965-1976

Subseries 2, Reports, 1964-1969

Subseries 3, Drawings, 1958-1968

Series 3, Patents and Trademarks, 1965-2002 and undated

Series 4, Product Literature, 1968-2010 and undated

Subseries 1, Del Mar Avionics, 1968-2010 and undated

Subseries 2, Competitors, 1974 and undated

Series 5, Sales, 1967-1985

Series 6, Holter Monitor Materials, 1958-2005

Subseries 1, Background Materials, 1958-2005

Subseries 2, Model 445, 1974-1978

Subseries 3, Model 660, 1967-1978 and undated

Series 7, Slides, circa 1990s
Biographical / Historical:
Norman Jefferis "Jeff" Holter (1914-1983) was born in Helena, Montana, to a prominent Montana pioneering family. After attending public schools in Helena, he earned master's degrees in chemistry from the University of Southern California (1938) and physics from the University of California, Los Angeles (1940). During these years Holter also organized Applied Micro Sciences, a scientific photography business, and began working with Dr. Joseph A. Gengerelli of UCLA on nerve stimulation in frogs and brain stimulation in rats. Holter's interest in studying electrical activity in humans in their daily activities without touching them, spawned his lifelong pursuit to develop the Holter Monitor.

During World War Two, Holter served as a senior physicist for the U.S. Navy's Bureau of Ships, conducting research into the behavior of ocean waves in preparation for wartime amphibious operations. After the war, in 1946, Holter headed a staff of oceanographic engineers at Bikini Atoll during Operation Crossroads, the first postwar atomic bomb tests, measuring wave actions and underwater disturbances caused by the explosions.

Because of demands of his family's business affairs, Holter returned to Helena in 1947 to continue his research activities. In 1947 he formed the Holter Research Foundation, with a laboratory originally located in the rear of the Holter Hardware Company building. From 1956 to 1971 the laboratory facilities were located in the Great Northern Railroad depot building in Helena. The foundation was initially funded by Holter and other members of his family, but in 1952 Holter began to receive grants from the National Institutes of Health (NIH).

Holter continued his collaboration with Dr. Gengerelli of UCLA in attempting to transmit information, primarily brain waves, by radio. Holter turned his attention from the brain to the heart because the heart's greater voltage made the electronics easier, and because heart disease was far more prevalent than cerebral disease. Holter's introduction to Dr. Paul Dudley White (1886-1973), a renowned physician and cardiologist, helped convince him to focus his research on recording electrical activity from the heart. Holter's goal was to radio broadcast and record the more obvious electrophysiological phenomena occurring in humans while carrying on their normal activities, rather than having to lie quietly on a couch.

The first broadcast of a radioelectrocardiogram (RECG) took place circa 1947 and required eighty to eighty-five pounds of equipment, which Holter worn on his back while riding a stationary bicycle. This was not practical and in no way could be worn by a patient. The initial transmitter and receiver required that the subject remain in the general area of the laboratory, so a portable and lighter RECG receiver-recorder had to be developed.

Next, Holter created a briefcase-like device that could be carried by a patient. By using very thin magnetic recording tape, twenty-four hours of RECG could be captured on a reel five inches in diameter. The initial method of examining the voluminous records from the tape recordings developed by Holter was called Audio-Visual Superimposed ECG Presentation (AVSEP). AVSEP made it possible to examine twenty-four hours of RECGs in twenty minutes, with signals being presented visually on an oscilloscope and audibly through a speaker.

With the development of transistors, radioelectrocardiography was made obsolete, and it became possible for the amplifier, tape recorder, temperature-control circuits, motor speed control circuits, and batteries to be placed in a single unit small enough for a coat pocket or purse. In 1952, Holter succeeded in creating a small unit that weighed 1 kilogram. Wilford R. Glassock, a senior engineer working with Holter, traveled to Cedars of Lebanon Hospital (now Cedars-Sinai Hospital of Los Angeles) in 1962 to demonstrate the Holter monitor system and discuss making it more practical. At Cedars, Dr. Eliot Corday observed the practicality of the system and not only embraced the technology, but collaborated with Holter's team and was an early promoter of the technology to both industry and physicians. Holter and Glassock were issued US Patent 3,215,136 on November 2, 1965 for the Electrocardiographic Means.

As articles describing the foundation's invention of these devices began to appear in the professional literature, there was considerable demand from doctors and hospitals for the equipment. Dr. Corday introduced Holter to Bruce Del Mar, founder of the Del Mar Avionics Corporation in Irvine, California. Del Mar engineers developed the "electrocardiocorder" for clinical use, producing a commercially viable monitor which came to be known as the Holter Monitor Test. Further refinements led to the creation of a "minimonitor" in 1968, which was described by Holter as being the "size of a cigarette package." Commercial production of the Holter minimonitor, AVSEP, Jr., began in 1969. The Holter Research Foundation ultimately sold exclusive rights to their patents to Del Mar Engineering Laboratories.

Later known as Del Mar Avionics, a team of engineers diverted their attention from successful manufacturing of military weapons training devices to focus on improving the speed and accuracy of computerized ECG analysis and they became the acknowledged leader in Holter monitoring technology for over 40 years. In 1969, because of the increased amount of required paper work and red tape, Holter canceled the grant funding his foundation had been receiving from NIH. He was also in constant conflict with the Internal Revenue Service over the foundation's non-profit status, rights to patents, and commercial production of equipment. The foundation continued to maintain a laboratory and conduct varied scientific work, but on a much smaller scale. The Holter Research Foundation, Inc. was dissolved in 1985, two years after Holter's death.

Del Mar Avionics was founded on January 9, 1952, as Del Mar Engineering Laboratories in Los Angeles, California by Bruce Del Mar, who led the development of aircraft cabin pressurization systems. Del Mar was born in Pasadena, California in 1913. An engineer, inventor, entrepreneur and businessman, Del Mar graduated from the University of California, Berkeley (1937) with a Bachelor of Science degree. Del Mar worked for Douglas Aircraft (1933-1951) as a research engineer on many projects before founding Del Mar Engineering Laboratories. In 1938, Del Mar married Mary Van Ness. The couple had two daughters, Patrica Jean Parsons and Marna Belle Schnabel.

In 1958, Del Mar formed a wholly-owned subsidiary, Electromation Inc., which manufactured tape recording and communication equipment. He later established, Aeroplastics Corporation to manufacture plastic products and Avionics Research Products Corporation to develop and produce biomedical instrumentation. By the mid-1960s, the company had become a leading U.S. Defense Department prime contractor in the development and production of aerial tow target systems for weapons training and instrumented ground targets for scoring air-to-ground automatic weapons delivery. It also produced helicopter target drones and helicopter flight trainers for the U.S. Army.

In 1961, the company entered the growing medical instrumentation market with the development of the first long-term ambulatory monitoring systems.

In 1965, the company introduced the Hydra Set Load Positioner that controls the precise vertical positioning of loads up to 300 tons (272,000 kg) in increments as small as 0.001 inch (0.025mm). This unique product, mounted between the load and the crane (or hoist), permits precise mating and de-mating of critical components, thus eliminating unforeseen damage to valuable loads. Hydra Set Load Positioners are in use worldwide in the aerospace, military/commercial aviation, nuclear and fossil fuel power generating industries and in various industrial applications. In 1975, the company, then re-named Del Mar Avionics, moved to its current location in Irvine, California.
Related Materials:
Materials in the Archives Center

Project Bionics Artificial Organ Documentation Collection [videotapes], 2002 (AC0841) documents the invention and development of artificial internal organs through oral history interviews with scientists and others involved.

The James A. E. Halkett and Sigmund A. Wesolowski, M.D., Papers, 1948-1951 (AC0200) documents Halkett and Wesolowski's experiments on an early mechanical heart. Halkett and Wesolow(ski) materials show the process of technological innovation through laboratory protocols.

The George Edward Burch Papers, 1984-1986 (AC0316) documents Burch's pioneering work in clinical cardiology and research through technical notes, diagrams, and correspondence regarding laboratory work on the "2-pump heart model," 1984-1986.

Wilson Greatbatch Innovative Lives Presentation, 1996 (AC0601) documents the invention of the implantable cardiac pacemaker in 1958.

The Ronald J. Leonard Papers, circa 1980-1997 (AC1109) documents Leonard's development of pumps and oxygenators used in cardio-pulmonary bypass surgery.

Materials in the Division of Medicine and Science, National Museum of American History

The Division of Medicine and Science (now Division of Medicine and Science) holds two monitors: the Dynamic and the Del Mar Avionics ElectroCardioCorder (Model 445), 1977 and the ElectroCardioScanner (Model 660), 1971. Both were developed by Del Mar's Medical Device Manufacturing staff. See accession #: 2011.0196.

Materials at the Montana Historical Society Research Center, Archives

Holter Family papers, 1861-1968

Includes documentation about the Holter Research Foundation, Inc.

Holter Research Foundation, Inc. records, 1914-1985

The Holter Research Foundation, Inc. was a private, non-profit, scientific research foundation started in Helena, Montana, in 1947 by Norman J. "Jeff" Holter. Records (1914-1985) include correspondence, financial records, laboratory records, subject files, photographs, etc. Also included are subgroups for N.J. Holter; his work in the U.S. Navy on bombs and waves; his work as assistant chancellor at University of California, San Diego; and the Society of Nuclear Medicine.
Provenance:
The collection was donated by Del Mar Avionics through Bruce Del Mar, President on September 12, 2011.
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.
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:
Medical innovations  Search this
Patents  Search this
Medical instruments and apparatus  Search this
Genre/Form:
Correspondence
Citation:
Del Mar Avionics Holter Monitor Records, dates, Archives Center, National Museum of American History
Identifier:
NMAH.AC.1249
See more items in:
Del Mar Avionics Holter Monitor Records
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_collection:sova-nmah-ac-1249
Online Media:

Engineering notebook (D. Anderson)

Collection Inventor:
Del Mar, Bruce E., 1913-  Search this
Collection Source:
Del Mar Avionics Corporation  Search this
Container:
Box 5, Folder 8
Type:
Archival materials
Date:
1974 October-1978 March
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 intellectual property rights. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Collection Citation:
Del Mar Avionics Holter Monitor Records, dates, Archives Center, National Museum of American History
See more items in:
Del Mar Avionics Holter Monitor Records
Del Mar Avionics Holter Monitor Records / Series 6: Holter Monitor / 6.2: Model 445
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-1249-ref115

Engineering notebook (N. Mohammedi)

Collection Inventor:
Del Mar, Bruce E., 1913-  Search this
Collection Source:
Del Mar Avionics Corporation  Search this
Container:
Box 5, Folder 8
Type:
Archival materials
Text
Date:
1974 September-1975 September
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 intellectual property rights. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Collection Citation:
Del Mar Avionics Holter Monitor Records, dates, Archives Center, National Museum of American History
See more items in:
Del Mar Avionics Holter Monitor Records
Del Mar Avionics Holter Monitor Records / Series 6: Holter Monitor / 6.2: Model 445
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-1249-ref116

Engineering notebook (Ray Cherry)

Collection Inventor:
Del Mar, Bruce E., 1913-  Search this
Collection Source:
Del Mar Avionics Corporation  Search this
Container:
Box 6, Folder 6
Type:
Archival materials
Text
Date:
1973 July-1978 June
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 intellectual property rights. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Collection Citation:
Del Mar Avionics Holter Monitor Records, dates, Archives Center, National Museum of American History
See more items in:
Del Mar Avionics Holter Monitor Records
Del Mar Avionics Holter Monitor Records / Series 6: Holter Monitor / 6.3: Model 660
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-1249-ref126

Edward P. Baldwin Collection

Creator:
Baldwin, Edward P.  Search this
Names:
Lockheed Aircraft Corp  Search this
Extent:
7.31 Cubic feet ((29 boxes))
Type:
Collection descriptions
Archival materials
Drawings
Photographs
Logs (records)
Manuals
Newspaper clippings
Date:
bulk 1944-1982
Scope and Contents:
This collection consists of 7.31 cubic feet of material created by Edward Baldwin during his tenure as a engineer for Kelly Johnson at Lockheed Skunk Works, 1944-1982. The collection consists of original pencil on vellum Skunk Works drawings, blueprints, design studies, logs, engineering notebooks, photographs, technical manuals, correspondence, newspaper articles and newsletters relating to his work on Lockheed aircraft, including the development of the P-80, SR-71, F-94, F-104, F-117 and the U-2.
Biographical / Historical:
Edward Baldwin received his degree in Mechanical Engineering in 1940 from West Virginia University. After graduation he moved to California and began working at Lockheed Aircraft Corporation. He was first assigned to the Special Airplane Projects group, where he worked on the Model 10 Electra, Model 12 Electra Jr, Model B-14, Hudson Bomber and the Model 18 Lodestar. Baldwin was then placed on loan to the P-38 and R6-O Constitution projects. In March of 1944, Baldwin was asked by Dick Boehme to join the Fuselage Design Group of the Advanced Development Projects (ADP) "Skunk Works." Baldwin worked on the P-80, before working on the F-94C and the XF-104. In November of 1954, Baldwin was placed on the U-2 project, where he developed the configuration of the aircraft and completed the design. Baldwin also worked on the ADP's Archangel Program to develop a Mach 3+ reconnaissance aircraft, which became known as the SR-71. Baldwin was then assigned to the "Have Blue" program, which was the Skunk Work's entry into the Stealth Prototype competition. Baldwin was responsible for all structural design of the two test vehicles and when Lockheed won the contract, became the Deputy Program Manager for Structures of the F-117. He retired in September 1982, after the first four production F-117 aircraft were delivered to the Air Force.
Provenance:
Barbara Sulier and Robert Baldwin, Gift, 2016
Restrictions:
No restrictions on access.
Rights:
Material is subject to Smithsonian Terms of Use. Should you wish to use NASM material in any medium, please submit an Application for Permission to Reproduce NASM Material, available at Permissions Requests
Topic:
Lockheed (F-80) P-80A Shooting Star  Search this
Lockheed U-2 Family  Search this
Lockheed SR-71 (Blackbird) Family  Search this
Lockheed F-117A Nighthawk (Stealth Fighter)  Search this
Lockheed F-104 Starfighter Family  Search this
Lockheed F-94 Starfire Family  Search this
Aeronautics  Search this
Aircraft drafting  Search this
Genre/Form:
Drawings
Photographs
Logs (records)
Manuals
Newspaper clippings
Citation:
Edward P. Baldwin Collection, Accession 2017-0010, National Air and Space Museum, Smithsonian Institution.
Identifier:
NASM.2017.0010
Archival Repository:
National Air and Space Museum Archives
EDAN-URL:
ead_collection:sova-nasm-2017-0010

Bartram Kelley Diaries

Creator:
Kelley, Bartnam, 1909-1998  Search this
Names:
Bell Helicopter Company  Search this
Extent:
2.7 Cubic feet ((6 boxes))
Type:
Collection descriptions
Archival materials
Diaries
Date:
bulk 1941-1980
Scope and Contents:
This collection consists of 47 diaries/engineering notebooks, containing highly detailed information and data relating to the design and development of the Bell Model 30 (which became the Model 47), the UH-1 Huey and the 206 JetRanger series, among other craft.
Biographical / Historical:
Bartram "Bart" Kelley (1909-1998) was a pioneering and distinguished helicopter engineer whose career was spent working for the Bell Aircraft and Bell Helicopter companies. Hired by Arthur M. Young, Kelley was instrumental in the design, testing, and development of such Bell aircraft as the H-13 Sioux, UH-1 Iroquois, AH-1G Cobra, OH-58 Kiowa, and XV-15. He became chief engineer of Bell's helicopter division in the late 1940s. After retirement in 1975, he served as a consultant for Bell Helicopter Textron. Bart Kelley was a fellow of the Helicopter Society, the American Institute of Aeronautics, the Royal Aeronautical Society, and the Society of Aeronautical Engineers. He was inducted into the United States Army Aviation Hall of Fame in 1994.
Provenance:
Dorothea N. Kelley, Gift, 2011
Restrictions:
No restrictions on access.
Rights:
Material is subject to Smithsonian Terms of Use. Should you wish to use NASM material in any medium, please submit an Application for Permission to Reproduce NASM Material, available at Permissions Requests
Topic:
Helicopters  Search this
Aeronautics  Search this
Bell 206A Jetranger  Search this
Bell UH-1 Iroquois (Huey) Series  Search this
Bell 30 Series  Search this
Bell 47  Search this
Genre/Form:
Diaries -- 20th century
Citation:
Bartram Kelley Diaries, Accession 2001-0057, National Air and Space Museum, Smithsonian Institution.
Identifier:
NASM.2001.0057
Archival Repository:
National Air and Space Museum Archives
EDAN-URL:
ead_collection:sova-nasm-2001-0057

IBM Engineer's Notebook Number 82078-01

Referenced:
IBM  Search this
Maker:
IBM  Search this
Measurements:
overall: 30 cm x 24.2 cm x 1.3 cm; 11 13/16 in x 9 1/2 in x 1/2 in
Object Name:
Notebook
Date made:
1953-04-24
From 24 April 1953 to 14 June 1954
1953-04-24 to 1954-06-14
Credit Line:
Gift of William Y. Crook
ID Number:
1998.3076.01
Nonaccession number:
1998.3076
Catalog number:
1998.3076.01
See more items in:
Medicine and Science: Computers
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a0-e8bd-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_214399

William E. Hallett Papers

Source:
National Museum of American History (U.S.). Division of Work and Industry  Search this
Creator:
Hallett, William E., 1864-1932  Search this
Names:
Alamo Engine Company  Search this
Hall Gas Engine Company Bucyrus, Ohio  Search this
Hayes Wheel Company Albion, Michigan  Search this
Former owner:
National Museum of American History (U.S.). Division of Work and Industry  Search this
Extent:
0.3 Cubic feet (1 box)
Type:
Collection descriptions
Archival materials
Correspondence
Photographs
Clippings
Notebooks
Date:
1900-1925.
Scope and Contents note:
The collection relates to Hallett's career as an engineer and his work with engines. The collection includes correspondence, engineering notebooks, writings, photographs, patent materials, clippings, and publications,.
Arrangement:
1 series.
Biographical/Historical note:
Hallett was an engineer for the Alamo Manufacturing Company, and designed the first Alamo Engine. While employed with the Hall Gas Engine Company he developed a heavy-duty gas engine. His last position was divisional chief engineer for the Hayes Wheel Company in Albion Michigan.
Provenance:
Immediate source of acquisition unknown.
Restrictions:
Collection open for research on site by appointment. Unprotected photographs must be handled with gloves.
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:
Engines  Search this
Engineers  Search this
Patents  Search this
Genre/Form:
Correspondence -- 1900-1950
Photographs -- 1900-1950
Clippings -- 1900-1950
Notebooks -- 1900-1950
Citation:
William E. Hallett Papers, 1900-1925, Archives Center, National Museum of American History.
Identifier:
NMAH.AC.1112
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_collection:sova-nmah-ac-1112

J. Parker Snow Collection

Collector:
National Museum of American History (U.S.). Division of History of Technology  Search this
National Museum of American History (U.S.). Division of Mechanical and Civil Engineering  Search this
National Museum of American History (U.S.). Division of Work and Industry  Search this
National Museum of American History (U.S.). Division of History of Technology  Search this
National Museum of American History (U.S.). Division of Mechanical and Civil Engineering  Search this
National Museum of American History (U.S.). Division of Work and Industry  Search this
Creator:
Snow, J. Parker  Search this
Extent:
0.5 Cubic feet (1 box)
Type:
Collection descriptions
Archival materials
Articles
Notebooks
Writings
Correspondence
Date:
1882-1933
bulk 1930-1933
Summary:
The J. P. Snow Papers document Snow's history of wooden bridges and his work as a civil engineer. The history was written in the 1930s with Robert Fletcher, Director Emeritus of the Thayer School of Civil Engineering at Dartmouth College.
Scope and Contents:
Snow's engineering notebook, 1882; notes relating to his writings on the history of wooden bridges; drafts and manuscripts for articles he wrote on the development of wooden bridges; and correspondence, especially with engineering journals relating to efforts to get his manuscripts published.
Correspondence, drafts of manuscript, notes, and an engineering notebook comprise the J. Parker Snow Collection.

Series 1, History of wooden bridges, 1930-1933, undated, contains material relating to Snow and Fletcher's unpublished manuscript. Snow corresponded with Fletcher regarding topics addressed in the book and the status of their writing. He also corresponded with John W. Storr, another civil engineer with an extensive knowledge of wooden bridges, and Sydney Wilmot, the editor planning to publish the history.

Series 2, Engineering projects, 1882, 1930-1931, consists of material related to various civil engineering projects, primarily bridges, with which Snow was associated. The engineering notebook contains detailed drawings of kilns and arches and information on various types of bridges, including railroad bridges.
Arrangement:
System of Arrangement: The collection is arranged into two series.

Series 1, History of Wooden Bridges, 1930-1933, undated

Subseries 1, Correspondence, 1930-1933, undated

Subseries 2, Drafts of manuscript, 1932-1933, undated

Series 2, Engineering projects, 1882, 1930-1931
Biographical / Historical:
J. Parker Snow was an American civil engineer with an interest in wooden bridges. He partnered with Robert Fletcher, the Director Emeritus of the Thayer School of Civil Engineering at Dartmouth College, to write a manuscript on the history of wooden bridges in the United States. This manuscript was not published. Both were members of the American Society of Civil Engineers.
Related Materials:
Materials in the Archives Center

The Llewellyn N. Edwards Collection (AC0959) contains extensive correspondence with J. Parker Snow regarding the history of wooden bridges.
Provenance:
Source of acquisition unknown.
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.
Topic:
Wooden bridges  Search this
Engineers  Search this
Bridges  Search this
Genre/Form:
Articles -- 20th century
Notebooks -- 1850-1900
Writings
Correspondence -- 1930-1940
Citation:
J. Parker Snow Collection, 1882-1933, (bulk 1930-1933) Archives Center, National Museum of American History
Identifier:
NMAH.AC.1000
See more items in:
J. Parker Snow Collection
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_collection:sova-nmah-ac-1000
Online Media:

J. Parker Snow, Sketch Book Number 2, [notebook]

Collector:
National Museum of American History (U.S.). Division of Engineering and Industry  Search this
Names:
Snow, J. Parker  Search this
Collection Collector:
National Museum of American History (U.S.). Division of History of Technology  Search this
National Museum of American History (U.S.). Division of Mechanical and Civil Engineering  Search this
National Museum of American History (U.S.). Division of Work and Industry  Search this
Collection Creator:
Snow, J. Parker  Search this
Extent:
1 Item (Ink on paper., 10.3" x 7.5")
Container:
Box 1, Folder 2
Type:
Archival materials
Notebooks
Date:
Circa 1880s
Scope and Contents:
Drawings of two mortar mills and two kilns.
Local Numbers:
AC0225-0000003 (AC Scan No.)
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. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Topic:
Engineering  Search this
Kilns  Search this
Mills and mill-work  Search this
Engineering notebooks  Search this
Genre/Form:
Notebooks
Collection Citation:
J. Parker Snow Collection, 1882-1933, (bulk 1930-1933) Archives Center, National Museum of American History
See more items in:
J. Parker Snow Collection
J. Parker Snow Collection / Series 2: Engineering projects / Sketch Book Number 2, 1882
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-1000-ref540

Engineering Research Notebooks

Collection Source:
National Museum of American History (U.S.). Division of Mechanical and Civil Engineering  Search this
Collection Creator:
Beers, Royce. L., 1888-  Search this
Type:
Archival materials
Date:
1913-1945
Scope and Contents:
Includes four volumes of research notes created by Royce Beers. Notebook one dates from 1913-1920 and is a six-ring, Lefax pocket notebook filled with notes, drawings, and calculations. There is an article on airplane stability written by Orville Wright in 1917. There are also detailed notes on the six-day "hospital diet" fed to Beers' wife at Columbia Hospital following the birth of their child on October 16, 1916. Notebook two dates from 1913-1921 and is also a six-ring, Lefax pocket notebook filled with notes, drawings, and calculations with various reference tables and technical articles printed and sold by the Lefax Corporation of Philadelphia. The third engineering notebook dates from circa 1914-1922 and is, like volumes one and two, a six-ring, Lefax pocket notebook filled with Beers' notes, drawings, and calculations. Included in the notebook are three copies of the 2.5 x 4.25-inch Ringlemann scale for grading the density of smoke. The fourth engineering notebook dates from circa 1919-1945 and contains Beer's field notes, drawings, calculations, and copies of correspondence, data tables, and salesmen's bulletins. The notes and correspondence address such topics as how the Nestle's Milk Products Company could burn coffee grounds for fuel (1941), how to dry fish and beet sugar pulp and garbage incineration (1939). There is also a photographic postcard with an image of a working stoker. The notebooks are arranged in chronological order.
Collection Restrictions:
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 Rights:
Collection is open for research
Collection Citation:
Royce L. Beers Papers, 1900-1969, Archives Center, National Museum of American History.
Identifier:
NMAH.AC.0880, Series 6
See more items in:
Royce L. Beers Papers
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-0880-ref556

Charles Richardson Pratt Papers

Collector:
National Museum of American History (U.S.). Division of Mechanical and Civil Engineering  Search this
National Museum of American History (U.S.). Division of History of Technology  Search this
National Museum of American History (U.S.). Division of Work and Industry  Search this
National Museum of American History (U.S.). Division of History of Technology  Search this
National Museum of American History (U.S.). Division of Mechanical and Civil Engineering  Search this
National Museum of American History (U.S.). Division of Work and Industry  Search this
Creator:
Pratt, Charles Richardson, 1860-1935  Search this
Names:
Sprague, Frank J.  Search this
Extent:
6 Cubic feet (13 boxes, 8 oversize folders)
Type:
Collection descriptions
Archival materials
Diaries
Drawings
Trade catalogs
Photographs
Notebooks
Letterpress books
Patents
Place:
Montclair (N.J.)
Date:
1860-1935
bulk 1910-1924
Summary:
The papers document the professional career of mechanical engineer, Charles Richardson Pratt. The papers include correspondence, patents, patent application materials, agreements, photographs, publications, and blueprints for many of Pratt's inventions, especially his work on elevators.
Scope and Contents:
These papers contain personal materials of Charles R. Pratt; letterpress copybooks; engineering notebooks; diaries; material relating to the development of the heavy-duty, high-rise electric elevator; material concerning elevator cable equalizers and safety devices, Morton-Jacobsen and other lathe chucks, lathe drives and the Pratt Driver, the hydraulic transmission of power in trucks, and ship steering gear; and studies reports, drawings, photographs, catalogs, and trade literature concerning mechanical engineering.
Arrangement:
The collection is arranged into eight series.

Series 1: Personal Materials, 1875-1935

Series 2: Diaries, 1894, 1928-1931

Series 3: Correspondence, 1872-1920

Series 4: Notebooks, 1880, 1889, 1900

Series 5: Inventions, 1860-1927

Series 6: Photographs, 1890-1902

Series 7: Publications, 1895-1929

Series 8: Drawings, 1878-1929
Biographical / Historical:
Charles Richardson Pratt (1860-1935), was born in Massachusetts to John C. and Mary Anne Richardson. He graduated from the Hopkins School of Boston and the Massachusetts Institute of Technology in 1879. Pratt worked at Whittier Machine Company of Boston (1882-1890) where he designed and built the first electric elevator in 1888. The elevator was installed in the Tremont House, Boston. Pratt also worked as an agent and later as a consulting engineer for the Otis Elevator Company, the inventors of the hydraulic elevator.

Pratt was best known for his development of the first electrically powered elevator. In 1892, inventor Frank Sprague (1857-1934) founded the Sprague Electric Elevator Company, and with Charles R. Pratt developed the Sprague-Pratt Electric Elevator. They demonstrated that electrically powered elevators were capable of competing with hydraulic elevators. Pratt held several engineering positions and worked for the Marine Engine Company of Newark, New Jersey (1902-1905) developing elevator systems; consulting engineer to the Universal Speed Control Company of New York City (1906-1919); consultant to the American Engineering Company of Philadelphia (1912); mechanical superintendent at the Crocker Wheel Company of Ampere, New Jersey (1919); engineer for the E. Horton and Sons Company of Connecticut (1920-1923); the General Tractors Corporation (1924-1927); and was associated with the Watson Elevator Company of New York City (1928-1930). Pratt patented many of his ideas, earning over thirty-five patents related mostly to elevators,

Pratt was a member of the Masons, the Sons of the American Revolution, the American Society of Mechanical Engineers, the MIT Club of New Jersey, and the Motor Club of London. He married Mary Byron Ladd and they had two children, Gertrude Ladd Pratt and Donald Richardson Pratt.
Provenance:
This collection was purchased from Charles R. Pratt's daughter, Gertrude Pratt Vance, in 1973.
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:
Mechanical engineering and engineers  Search this
Inventors  Search this
Elevators  Search this
Machine-tools  Search this
Patents -- 1890-1900  Search this
Power transmission  Search this
Genre/Form:
Diaries
Drawings
Trade catalogs
Photographs -- 19th century
Notebooks
Letterpress books
Patents -- 1870-1880
Citation:
Charles Richardson Pratt Papers, 1860-1935, Archives Center, National Museum of American History.
Identifier:
NMAH.AC.0958
See more items in:
Charles Richardson Pratt Papers
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_collection:sova-nmah-ac-0958
Online Media:

Engineering Notebook Collection

Creator:
National Museum of American History (U.S.). Division of Engineering and Industry  Search this
Names:
Ames Iron Works.  Search this
Hendrick Manufacturing Company  Search this
Woodruff and Beach Iron Works.  Search this
Bennett, C.  Search this
Blaisdell, Alfred O.  Search this
Gordon, W. F.  Search this
Reed, James  Search this
Richardson, William J.  Search this
Sheldon, Frank P.  Search this
Snow, J. Parker  Search this
Extent:
0.3 Cubic feet (1 box

)
Type:
Collection descriptions
Archival materials
Technical descriptions
Technical notes
Financial data
Inspections
Lists
Drawings
Shop orders
Notebooks
Date:
1835-1930
Summary:
Collection of personal notebooks of civil engineers.
Scope and Contents note:
Mainly personal notebooks of engineers, although one is a listing of products of a manufacturer of gears and another is a compilation of shop orders for various products of a manufacturer. They generally contain technical descriptions, drawings, specifications, and financial data.
Provenance:
Immediate source of acquisition unknown.
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.
Occupation:
Engineers  Search this
Topic:
Furnaces  Search this
Architecture -- United States  Search this
Bridges  Search this
Boilers  Search this
Mechanical engineering and engineers  Search this
Mills and mill-work  Search this
Kilns  Search this
Engineering: financial accounting  Search this
Engineering notebooks  Search this
Engineering: shop orders  Search this
Piers  Search this
Docks  Search this
Civil engineering  Search this
Engineering  Search this
Railroads  Search this
Railroad car builders  Search this
Steam-engines  Search this
Refrigeration and refrigerating machinery  Search this
Genre/Form:
Technical descriptions
Technical notes
Financial data
Inspections
Lists
Drawings
Shop orders
Notebooks
Citation:
Engineering Notebook Collection, 1835-1930, Archives Center, National Museum of American History
Identifier:
NMAH.AC.0225
See more items in:
Engineering Notebook Collection
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_collection:sova-nmah-ac-0225
Online Media:

C. Bennett (?) Railway Coach Co.

Collection Creator:
National Museum of American History (U.S.). Division of Engineering and Industry  Search this
Container:
Box 1, Folder 1
Type:
Archival materials
Date:
circa 1835-1840
Scope and Contents:
Notes, drawings, data on railroad installations and operations, and waterworks
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:
Engineering Notebook Collection, 1835-1930, Archives Center, National Museum of American History
See more items in:
Engineering Notebook Collection
Engineering Notebook Collection / Series 1: Engineering Notebooks
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-0225-ref511

Woodruff & Beach Iron Works, Commerce Street, Hartford, Connecticut

Collection Creator:
National Museum of American History (U.S.). Division of Engineering and Industry  Search this
Container:
Box 1, Folder 1
Type:
Archival materials
Date:
1867
Scope and Contents:
List of gears and other patterns belonging to W & B Iron Works (includes technical descriptions of gears.
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:
Engineering Notebook Collection, 1835-1930, Archives Center, National Museum of American History
See more items in:
Engineering Notebook Collection
Engineering Notebook Collection / Series 1: Engineering Notebooks
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-0225-ref512

Frank P. Sheldon, Mill Engineer and Architect, Providence, Rhode Island

Collection Creator:
National Museum of American History (U.S.). Division of Engineering and Industry  Search this
Container:
Box 1, Folder 1
Type:
Archival materials
Date:
circa 1870-1875
Scope and Contents:
Technical cost and financial data on textile mill equipment and installations.
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:
Engineering Notebook Collection, 1835-1930, Archives Center, National Museum of American History
See more items in:
Engineering Notebook Collection
Engineering Notebook Collection / Series 1: Engineering Notebooks
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-0225-ref513

James Reed, Asst. Engineer, Pennsylvania Railroad

Collection Creator:
National Museum of American History (U.S.). Division of Engineering and Industry  Search this
Container:
Box 1, Folder 2
Type:
Archival materials
Date:
circa 1874-1882
Scope and Contents:
Maintenance of way expenses, repair costs, other railroad costs, number of cars hauled.
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:
Engineering Notebook Collection, 1835-1930, Archives Center, National Museum of American History
See more items in:
Engineering Notebook Collection
Engineering Notebook Collection / Series 1: Engineering Notebooks
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-0225-ref514

W.F. Gordon, Newport News, Virginia

Collection Creator:
National Museum of American History (U.S.). Division of Engineering and Industry  Search this
Container:
Box 1, Folder 2
Type:
Archival materials
Date:
circa 1883-1884
Scope and Contents:
Survey notes and data for piers, docks, and streets.
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:
Engineering Notebook Collection, 1835-1930, Archives Center, National Museum of American History
See more items in:
Engineering Notebook Collection
Engineering Notebook Collection / Series 1: Engineering Notebooks
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-0225-ref515

Ames Iron Works, Oswego, New York

Collection Creator:
National Museum of American History (U.S.). Division of Engineering and Industry  Search this
Container:
Box 1, Folder 5
Type:
Archival materials
Date:
circa 1888-1890
Scope and Contents:
Technical notes and data on steam engines and other machinery.
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:
Engineering Notebook Collection, 1835-1930, Archives Center, National Museum of American History
See more items in:
Engineering Notebook Collection
Engineering Notebook Collection / Series 1: Engineering Notebooks
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_component:sova-nmah-ac-0225-ref516

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