Search Results
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Letter from S. S. Prentiss to Arnold O. Beckman
- 1945-Feb-06
In this letter, Dr. Prentiss inquires about the possibility of combining a moisture detector and an oxygen meter, presumably for use in submarines. At the time, Dr. Spencer S. Prentiss was working for the National…
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Letter from Reuben E. Wood to Spencer Prentiss
- 1945-Jan-22
Letter regarding various requirements for the Pauling Oxygen Meter, including the possibility of making a combination moisture detector and oxygen meter. At the time, both Reuben Wood and Dr. Spencer S. Prentiss were…
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Letter from Durand Churchill, Jr. to Arnold O. Beckman
- 1944-Jul-19
Letter regarding an inquiry from the United States War Department about the sensitivity of Pauling Oxygen Meter.
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen…
- Addressee Beckman, Arnold O.
- Author Churchill, Durand Jr.
- Subject Scientific apparatus and instruments, Oxygen--Measurement, World War (1939-1945), United States. War Department, United States. Office of Scientific Research and Development. National Defense Research Committee, Beckman Instruments, Inc.
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Letter from Durand Churchill, Jr. to Arnold O. Beckman
- 1944-Dec-15
Letter in which Arnold Beckman's request to have the Pauling Oxygen Meter project declassified is denied.
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers…
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Letter from Durand Churchill, Jr. to Arnold O. Beckman
- 1945-Feb-08
Letter regarding the extension of the military contract for Beckman Instruments' Pauling Oxygen Meter development. This letter also mentions the possibility of using the instrument inside oxygen tents.
Developed from a…
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Letter from Durand Churchill, Jr. to Arnold O. Beckman
- 1944-Apr-12
Letter regarding specifications for Pauling Oxygen Meter for use in British military aircraft.
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up…
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Instructions for replacing Nernst Glower in Beckman IR-1 Spectrophotometer
- 1945-Dec-01
A Nearnst glower is a now-obsolete device that uses a cylindrical rod of heated oxides to deliver infrared radiation in instruments used for spectroscopy.
The Beckman Instruments IR spectrophotometers began as a…
- Creator Of Work Beckman Instruments, Inc.
- Subject Scientific apparatus and instruments, Spectrophotometer, Infrared spectroscopy, Beckman Instruments, Inc.
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Diagram of Beckman IR-85 spectrophotometer continuous wavelength drive
- 1945-Feb-08
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…
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Mtg. holes for Beckman IR-85 Spectrophotometer wavelength drive
- 1944-Dec-16
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…
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The Beckman Model DR Recording Spectrophotometer
- 1945-Dec-05
The DR Spectrophotometer was a basic model DU (an ultraviolet, single beam, quartz-crystal spectrophotometer) with an added recorder. This one-sheet description of the instrument was used in several Beckman Instruments…
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Beckman IR-85 Spectrophotometer wiring diagram
- 1945-Feb-10
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…
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Beckman IR spectrophotometer wavelength drive bearing block location
- 1944-Dec-13
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…
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Beckman IR-85 motor wavelength drive
- Circa 1945
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…
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Beckman IR-85 motor wavelength drive
- Circa 1945
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…
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Beckman Model R pH meter
- 1942 – 1959
The Model R Industrial pH Meter was first produced in 1942, although this photograph was likely taken much later.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California…
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Unequalled for Precise Research and Analytical Work
- 1940s
This advertisement for the Model G pH meter highlights the different electrodes that could be used with it. The Model G was Beckman Instruments's first commercial pH meter.
Arnold Beckman invented his first pH meter in…
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Portrait of Leo Hendrik Baekeland (1863-1944)
- After 1920 – 1944
Portrait of Leo Hendrik Baekeland (1863-1944), inventor of Bakelite, the first fully synthetic plastic.
- Manufacturer Underwood & Underwood
- Subject Portrait photography, Inventors, Bakelite, Baekeland, L. H. (Leo Hendrik), 1863-1944, Plastics
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2 items
Pauling Oxygen Analyzer
- 1940s
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…
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Interior of Beckman IR-1 Spectrophotometer
- 1940s
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…
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Demonstration of a Beckman Model B Spectrophotometer
- 1940s
An unidentified man with a tattoo on his forearm has removed the case of a Model B DU Spectrophotometer in order to demonstrate its functions to three other (also unidentified) men.
The first Beckman Instruments DU…
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Dumbell part of Pauling Oxygen Meter
- 1940s
This glass dumbbell was key to the functioning of the Pauling Oxygen Meter, although production was tricky and originally required a human glass blower to shape the hollow ends of the tiny dumbbell with puffs of breath.…
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Instructions for replacing No. 2530 electronic tube model [in] model D and DU spectrophotometers
- 1945
These instructions for phototube replacement describe some of the inner workings of the first model D/DU spectrophotometer made by National Technical Laboratories in 1945. The phototube being replaced in these…
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Letter from Arnold Beckman to Fred T. Williams
- 1944-Mar-07
A letter from Arnold O. Beckman to Fred T. Williams, a patent advisor at the National Defense Research Committee. In this letter, Beckman reports on the delay in filing a patent for his carbon monoxide detecting…
