Search Results
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Coiler head assembly for synthetic fibers
- 1946-Sep
Detail view of a coiler head assembly mechanism used at DuPont during the early stages of synthetic fiber production and research. Typically, this type of apparatus was used to coil tow, an untwisted bundle of…
- Subject Nylon, E.I. du Pont de Nemours & Company, Machinery
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Assorted apparatus used for the production of nylon
- 1946-Aug-09
Assorted apparatus and component parts, including a magnetic switch, mercury plunger, and rupture diaphragm, used during the early stages of nylon production and research at DuPont.
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2 items
Staple crimpers for synthetic fibers
- 1946-Mar-31
Two views of staple crimpers used at DuPont during the early stages of synthetic fiber production and research. During production, a tow (an untwisted bundle of continuous filaments) was fed between two serrated rolls…
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Continuous shaft drawtwister for nylon
- 1946-Jun
Close-up view of a continuous shaft drawtwister used during the early stages of nylon production and research at DuPont. As part of the cold-drawing process, drawtwisters were used to stretch the nylon filaments…
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Spinneret and pack equipment for nylon
- 1946-Mar-31
General view of a spinneret (front row, second from left) and assorted pack equipment, including a filter screen and gasket, used during the early stages of nylon production and research at DuPont. During production, a…
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Hot relaxing plates on drawing machine
- 1946-Feb-46
Close-up view of two hot relaxing plates on a drawing machine used at the DuPont plant in Seaford, Delaware during the early stages of synthetic fiber production and research. The plate on the left, labelled "Electric,"…
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Modified feed brake assembly on nylon staple cutter
- 1946-Feb
Close-up view of the modified feed brake assembly on a nylon staple cutter used at the DuPont plant in Seaford, Delaware during the early stages of nylon production and research.
- Subject Nylon, E.I. du Pont de Nemours & Company, Machinery
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Wrap scraper blade on nylon drawing machine
- 1946-Feb
Close-up view of the wrap scraper blade on a drawing machine used at the DuPont plant in Seaford, Delaware during the early stages of nylon production and research.
- Subject Nylon, Polymers, E.I. du Pont de Nemours & Company, Machinery
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3 items
Nylon drawing machine and creel at Seaford plant
- 1946-Feb
- 1946-Mar-31
Three views of a nylon drawing machine and creel (a rack holding bobbins or spools for spinning) used at the DuPont plant in Seaford, Delaware during the early stages of nylon production and research.
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Group photograph of DuPont "Type 9" textile team
- 1948
Group photograph of DuPont shift supervisors and foremen responsible for the development of the "Type 9" textile at the DuPont plant in Martinsville, Virginia. Team supervisor Joseph X. Labovsky is seated on the far…
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2 items
Letter from S. S. Prentiss to Arnold O. Beckman
- 1945-Feb-16
The letter regards the procurement of Pauling meters for use on submarines and issues of cost and portability.
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen…
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48 items
Illustrated Catalog - Pasteur Exhibition
- 1947-Apr-09 – 1947-May-26
Illustrated catalog for a Pasteur Exhibition at the Science Museum in South Kensington, England, April 9th through May 26th, 1947. Exhibition originally shown in Paris, France, with added contributions from the Wellcome…
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2 items
Letter from Robert S. Mulliken to Harrison Shull, 1949
- 1949-Oct-18
Contains suggestions from Mulliken to Shull for changes in one of Shull's manuscripts.
- Addressee Shull, Harrison
- Author Mulliken, Robert Sanderson
- Subject Shull, Harrison, Mulliken, Robert Sanderson, Wave functions, Quantum theory, Chemists, Physicists
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2 items
Letter from Harrison Shull to Robert S. Mulliken, 1949
- 1949-Sep-22
Concerns submission of a manuscript to Mulliken for review, and results of Shull's latest work on quantum theory.
- Addressee Mulliken, Robert Sanderson
- Author Shull, Harrison
- Subject Shull, Harrison, Mulliken, Robert Sanderson, Quantum theory, Chemists, Physicists
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2 items
Letter from Robert S. Mulliken to Harrison Shull, 1948
- 1948-Jun-19
Contains comments on Shull's current research activities.
- Addressee Shull, Harrison
- Author Mulliken, Robert Sanderson
- Subject Formaldehyde, Shull, Harrison, Mulliken, Robert Sanderson, Quantum theory, Chemists, Ethylene, Physicists
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Unidentified U.S.D.A. building
- 1940s – circa
Exterior view of an unidentified United States Department of Agriculture building. The building is believed to be part of the U.S.D.A.'s Agricultural Engineering Laboratory facility located in Beltsville, Maryland.
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Front entrance of National Technical Laboratories
- 1948
Front entrance of National Technical Laboratories in South Pasadena.
- Photographer Rohrer, Larry
- Subject Factories, Beckman Instruments, Inc.
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Snack bar of National Technical Laboratories
- 1948
Snack bar of National Technical Laboratories in South Pasadena.
- Photographer Rohrer, Larry
- Subject Factories, Beckman Instruments, Inc.
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View to the west of National Technical Laboratories
- 1948
View to the west of National Technical Laboratories in South Pasadena.
- Photographer Rohrer, Larry
- Subject Factories, Beckman Instruments, Inc.
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Northwest parking lot of National Technical Laboratories
- 1948
Northwest parking lot of National Technical Laboratories in South Pasadena.
- Photographer Rohrer, Larry
- Subject Factories, Beckman Instruments, Inc.
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Parking lot on the north side of National Technical Laboratories
- 1948
Parking lot on the north side of National Technical Laboratories in South Pasadena.
- Photographer Rohrer, Larry
- Subject Factories, Beckman Instruments, Inc.
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Shipping department of National Technical Laboratories
- 1948
Shipping department of National Technical Laboratories in South Pasadena.
- Photographer Rohrer, Larry
- Subject Factories, Beckman Instruments, Inc.
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6 items
National Technical Laboratories in winter
- 1948 (Winter)
Photographs of the snow-covered National Technical Laboratories on Mission Street in South Pasadena.
- Photographer Rohrer, Larry
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Gilbert Electric Eye Kit
- 1949
- Manufacturer A.C. Gilbert Company
- Subject Electric apparatus and appliances, Electricity, A.C. Gilbert Company, Electron tubes
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Filipino postage stamp commemorating the Philippine Islands (Colonial Era)
- Before 1946
Depicts the Salinas Salt Springs in the Philippines.