Search Results
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2 items
Beckman Model 144 UV Photometer
- 1950 – 1979
Photometers measure the intensity of light or optical properties (like illuminance and fluorescence) of surfaces and solutions.
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4 items
National Technical Laboratories staff
- 1938-Dec
- 1939-Dec
- 1940
The series of photographs depicts employees of National Technical Laboratories.
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2 items
Espionage Act
- Extract from "The Code of the Laws of the United States of America" in Force June 14, 1940, Title 50--War, Chapter 4--Espionage
- 1944-Sep-01
Arnold Beckman signed this Espionage Act during the course of work with MIT's Radiation Lab, presumably in connection with work on mustard gas detection.
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Secrecy Agreement
- 1944-Sep-01
Arnold Beckman signed this agreement during the course of work with MIT's Radiation Lab, presumably in connection with work on mustard gas detection.
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2 items
Monthly Report: An Instrument for Recording the Concentration of Mustard Gas in Air
- 1943-Nov
The report discusses work performed between September 20 and October 31, 1943, under contract number OEMsr-674. Beckman reported beginning construction of the first model of an instrument to record concentrations of…
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57 items
Report: Paper Tape Recording of CW Agents
- 1944-Mar-30
The informal report drafted by a University of Chicago team, regarding contract OEMsr-79, documented efforts to record chemical warfare agents using sensitized paper tape. The report includes one such strip…
- Author Wilzbach, Kenneth E., Nicolaides, Nicholas, Remington, William R., Brown, Weldon G., Stell, Robert J., Ballweber, Edward G., Pearson, Donald E.
- Subject Cyanogen compounds, Gases--Analysis, University of Chicago, Mustard gas, Chemical agents (Munitions), United States. Office of Scientific Research and Development. National Defense Research Committee, Chemical warfare, Hydrocyanic acid, Phosgene
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Circuit Diagram, Beckman pH Meter, Laboratory Model
- Dwg. No. CD-2000B
- 1945-Jan-24
The diagram is annotated in red and blue ink, indicating first and second position.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an…
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7 items
Memo from T. H. Lotze to L. R. Pugh
- Precision pH control by precision buffer control
- 1952-Feb-25
The memo describes problems Eastman Kodak encountered with buffer solutions and the suggestion that the Model H-2 pH meter might be adapted for Kodak's applications. Lotze appears to be the creator of images as well as…
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3 items
Memo from Raymond I. Schiff to William Newton
- Model G Product Meeting Recommended Design Changes for Cost Reduction
- 1956-Oct-10
The memo discusses cost reductions to the Model G pH meter and is extensively annotated.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an…
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Instructions for converting new style wavelength drive to be used with old style single unit amplifier
- 1954-May-07
The drawing documents the modifications needed to use a new wavelength drive with the IR-2 spectrophotometer.
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Diagram of special demountable reference electrodes
- 1952-Jul-18
The illustration depicts glass electrodes that could be used with the Beckman Model G pH meter.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who…
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Memo from George D. Butler to R. Pat Connor
- Difficulties with Blue Tip Electrodes at Eastman Kodak
- 1952-Jul-22
The memo discusses issues affecting the electrodes used with a Model G pH meter, possible actions, and the risk of losing Kodak's business to a competitor such as Leeds & Northrup.
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8 items
A Quartz Photoelectric Spectrophotometer
- 1941-Nov
The article is reprinted from the Journal of the Optical Society of America Vol. 31, No. 11, November 1941 and was presented at the Ninth Summer Conference on Spectroscopy and Its Applications, held at the Massachusetts…
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9 items
Beckman Facilities, Fullerton Plant
- Undated
- 1954
- 1966
- Circa 1975
In 1954, Beckman Instruments' headquarters moved from Pasadena to Fullerton, California.
The images with dates inscribed on the back indicate that they were taken between 1954 and 1975, although some images are…
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7 items
Beckman Facilities, Fullerton Plant
- Undated
- 1943
- 1953
- 1955
In 1954, Beckman Instruments' headquarters moved from Pasadena to Fullerton, California.
Some photos are undated, but the ones with dates were taken between 1943 and 1953. Several have a photographer's stamp on the…
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10 items
Beckman Flame Spectrophotometer
- Beckman Reprint R-38
- 1950-Jun
Beckman Instruments reprinted and distributed this paper, originally published in Analytical Chemistry Vol. 22, No. 6, June 1950.
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82 items
Instruction Manual, Model DK-1 Spectrophotometer
- 355-C
- 1957-May
The Beckman DK Spectrophotometer was an enhancement of the DU, which expanded the instrument’s range of into near-infrared. This was accomplished by chemist Wilbur I. Kaye, who began his work on science behind the DK at…
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Interior of Beckman Model 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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23 items
Beckman Spinco Division Model E Centrifuge
- Undated
- 1950s
- 1963-Oct
Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With Spinco came the famous Model E Ultracentrifuge, which was…
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15 items
Arnold Beckman with others
- Undated
- 1953
- 1955-Sep-15
- 1957-Oct-11
- 1961-Jan
- 1982
- 1987-Mar-23
The photographs depict Arnold Beckman at a variety of meetings and events. Identified individuals include Arnold Beckman, P. Dodds, V. Rossetti, Robert T. Sheen, W. G. Brombacher, Taylor Fletcher, Jack Bishop, William…
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5 items
Beckman Model D2 Oxygen Analyser
- 1950s
Note the spelling, "Analyser" as opposed to "Analyzer," which may be seen on other D2 units.
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing…
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3 items
Arnold Beckman visits to international subsidiaries
- Undated
- 1959-Aug-07
- 1962
The photographs document Arnold Beckman's visits to international subsidiaries. Identified individuals include Suzko Tomono in Japan and Mary Brunton, Jean Fortune, Jessie Rodden, Myra Milne, and Dave Dryburgh in…
- Photographer John Leng & Company, Ltd.
- Subject Employees, Beckman, Arnold O., Beckman Instruments, Inc., Women employees
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11 items
Model F resistor notes and diagrams
- 1946-Apr-08
Handwritten and -drawn notes detail the resistors used in the Model F pH meter.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate…
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Memo from Walter Donner to Beckman Instruments staff
- Case Color for 9600 PH Meter
- 1956-Sep-26
In this memo, Walter Donner discussed the color and material to be used for the Zeromatic's case.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who…
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Memo from Raymond I. Schiff to J. E. Leonard
- 1956-Dec-29
Raymond Schiff describes the dangers of Zeromatic users receiving electric shocks.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an…
