Photographs of Chilean power stations and equipment; and engineering drawings and blueprints of the Braden Copper Company, Rancaqua, Chile.
The records document the development of the first commercial atomic clocks by the National Company, Inc., (NATCO) of Malden, Massachusetts, a company known for producing specialized electronic equipment. The records include blueprints, technical drawings and schematics, technical and research reports, instruction manuals, photographs, and marketing materials.
Peter J. Bier, born in Hungary, immigrated to the United States in 1904. Bier worked as an engineer for the Bureau of Reclamation in the Department of the Interior from 1923-1954, and continued to work as a consultant in the field after retirement. The collection includes materials related to his work with the Bureau of Reclamation, including project materials, drawings, designs, and inspection reports and data, along with materials documenting his time as an engineering consultant.
This collection includes blueprints, schematics, photographs, notes, and some correspondence of Harmon B. Deal, engineer with the Atwater Kent Manufacturing Company, relating to a study on the possible lines of development of television in 1929.
These papers document the career and interests of Roess, especially radio rebroadcasting stations, radio navigation, radar, antennas, Naval Research Laboratory projects, and radio broadcasting. Includes blueprints, schematics, technical literature, reprints, manuals, photographs, correspondence, and notes.
Correspondence, notes, articles, and photographs assembled by Harris on the history of the United Fruit Company and Tropical Radio Telegraph Company (TRT), 1904-1961. Also includes manuscript histories of companies; material on the application of teletypewriters to radio circuits; blueprints, schematics, reports, and manuals concerning the technica...
Advertisements, catalogs, repair manuals, union materials, and technical drawings related to pianos and piano tuning (companies and organizations listed below). While providing a window into a profession that spans both science and music, this collection contains information concerning economic changes, advertising, trade associations, and technica...
Papers representing Koenig's research on early personal computers. Includes photographs, articles, laboratory reports, Koenig's students' research, writings and illustrations and diagrams on hardware and software.
This collection includes technical reports containing laboratory notes, charts, graphs, drawings, and diagrams relating to Kroenberg's career as a researcher and analyst in the field of machining of metals from the 1920s to the 1960s. The papers are in English, in Kronenberg's native German as well as in French, Russian and Spanish. They relate t...
The collection documents the career of N. Joseph Woodland, who, along with Bernard Silver, invented and developed the bar code.