Robert Ledley Papers
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- Creators:
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Ledley, Robert S.
National Biomedical Research Foundation. Georgetown University
- Dates:
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1972-1990
- Size:
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3 Cubic feet
- Collection ID:
- NMAH.AC.1135
- Repository:
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Archives Center, National Museum of American History
The Robert Ledley Papers document the development of the first whole-body diagnostic imaging system, the Automatic Computerized Transverse Axial (ACTA) X-ray Scanner by Ledley in 1973. Also included is material relating to Ledley's company, Digital Science Information Corporation (DISCO), as well as the public and medical communities' reactions to the scanner.
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- Creators:
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Mechanical and Civil Engineering, Division of [former name], NMAH, SI.
History of Technology, Division of, NMAH, SI
Pratt, Charles Richardson, 1860-1935
Work and Industry, Division of, NMAH, SI
More … - Dates:
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1860-1935
bulk 1910-1924
- Size:
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6 Cubic feet (13 boxes, 8 oversize folders)
- Collection ID:
- NMAH.AC.0958
- Repository:
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Archives Center, National Museum of American History
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.
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- Creators:
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American Car and Foundry Co. (Jackson & Sharp Car Co.)
Jackson & Sharp Car Co.
Transportation, Division of, NMAH, SI.
- Dates:
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1884-1948
- Size:
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2.5 Cubic feet (6 boxes, 21 volumes)
- Collection ID:
- NMAH.AC.0156
- Repository:
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Archives Center, National Museum of American History
This collection contains order books, including design details of a wide variety of passenger, freight and specialty cars (including self-propelled electric cars), and cost accounts for the production department. Also included are 21 volumes of photographs of finished cars, arranged by lot number. These have separate indexes arranged alphabetically...
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- Creators:
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Warshaw, Isadore, 1900-1969
- Dates:
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circa 1795-1965
- Size:
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1 Cubic foot (consisting of 2 boxes, 2 folders, 3 oversize folders.)
- Collection ID:
- NMAH.AC.0060.S01.01.Physical
- Repository:
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Archives Center, National Museum of American History
A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Physical Culture forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana
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- Creators:
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Interstate Commerce Commission
Transportation, Division of, NMAH, SI.
Yungmeyer, Martha
- Dates:
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1931-1964
- Size:
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8 Cubic feet (24 boxes
)
- Collection ID:
- NMAH.AC.0241
- Repository:
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Archives Center, National Museum of American History
Records compiled by the Bureau of Rail Safety of the Federal Railroad Administration. Data include names of locomotive builders and railroads operating them.
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Halkett, James A. E. (physicist)
Medical Sciences, Division of, NMAH, SI.
Wesolowski, Sigmund A.
- Dates:
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1948-1951.
- Size:
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0.15 Cubic feet (1 box)
- Collection ID:
- NMAH.AC.0220
- Repository:
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Archives Center, National Museum of American History
Halkett and Wesolow(ski) materials show the process of technological innovation through laboratory protocols. They also demonstrate the various alternatives explored in the search for effective artificial circulation by using materials which would not damage or clot blood and that could be sterilized. The evolution of the pumping mechanism and powe...
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Grant, George B. (George Barnard), 1849-1917
Philadelphia Bank Note Company (Philadelphia, Pa.)
Bollée, Léon, 1870-1913
Centennial Exhibition (1876 : Philadelphia, Pa.)
More … - Dates:
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1873-1896
- Size:
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1 Volume (approximately 70 leaves, ill., 34 cm.)
- Collection ID:
- SIL-DL.MSS001780B
- Repository:
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Smithsonian Libraries
Scrapbook compiled by George Barnard Grant (inventor of Grant's calculating machine), a businessman based in Lexington and Boston, Massachusetts, containing printed ephemera, machine manuals, handwritten and typescript notes and correspondence, photographs, patent applications, and other papers relating to calculating machines, inventors, the 1876 Centennial Exhibition in Philadelphia, and Grant's patent dispute with Léon Bollée in the 1880s. Some of the other inventions and companies referenced in the scrapbook include: Baldwin's calculating machine; Reliance Machine Works (B.F. Quimby); Baldwin's arithmometer; Teasdale's calculating machine; American Type Machine Co. (Westcott type casting and setting machine); Babbage's difference engine; Warren on the Thomas De Colmar calculating machine; Warren Bros. calculating engine; Tendollaradder (Grant Calculating Machine Co.); tabulating machine of G. & E. Schuetz; the Pidgin Electric Calculating Machine Co.; Webb's adding machine; Sir William Thomson's harmonic analyzer; L. Bollée's calculating machine; Grant's ciphering hand-organ; and Hattersley composing and distributing machines.
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- Creators:
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Smithsonian Astrophysical Observatory. Subcontracts and Procurement Department
- Dates:
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1966-1980
- Size:
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13 cu. ft. (13 record storage boxes)
- Collection ID:
- Accession 99-151
- Repository:
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Smithsonian Institution Archives
This accession consists of records that document Smithsonian Astrophysical Observatory (SAO) projects and activities. Materials include proposals, quotations, bids, and correspondence with contractors, equipment makers, and vendors to provide services, equipment, and instruments for SAO.
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- Creators:
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Smithsonian Astrophysical Observatory. Subcontracts and Procurement Department
- Dates:
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1991-1998
- Size:
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13 cu. ft. (13 record storage boxes)
- Collection ID:
- Accession 05-291
- Repository:
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Smithsonian Institution Archives
These records document Smithsonian Astrophysical Observatory (SAO) projects and activities. Materials include proposals, quotations, bids, architectural drawings, and correspondence with contractors, equipment makers, and vendors to provide services, equipment, and instruments for SAO.
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- Creators:
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Smithsonian Astrophysical Observatory. Subcontracts and Procurement Department
- Dates:
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1979-1991
- Size:
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10 cu. ft. (10 record storage boxes)
- Collection ID:
- Accession 99-150
- Repository:
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Smithsonian Institution Archives
This accession consists of records that document Smithsonian Astrophysical Observatory (SAO) projects and activities. Materials include proposals, quotations, bids, and correspondence with contractors, equipment makers, and vendors to provide services, equipment, and instruments for SAO.