Search Results
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Biological Chemical Laboratory at Dow Chemical Company
- 1952
General view of an unidentified employee conducting an experiment with assorted fruit specimens in the Dow Chemical Company's Biological Chemical Laboratory. The laboratory commonly conducted research and testing…
- Creator Of Work Dow Chemical Company
- Photographer Korling, Torkel
- Subject Employees, Laboratories, Dow Chemical Company, Biochemistry, Glassware, Scientific apparatus and instruments
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Biological Chemical Laboratory at Dow Chemical Company
- 1952
General view of an unidentified employee working with assorted test tubes in the Dow Chemical Company's Biological Chemical Laboratory. The laboratory commonly conducted research and testing related to the development…
- Creator Of Work Dow Chemical Company
- Photographer Korling, Torkel
- Subject Employees, Laboratories, Dow Chemical Company, Biochemistry, Tubes--Testing, Glassware, Scientific apparatus and instruments
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Employee at work in Dow Spectroscopy Laboratory
- 1952
General view of an unidentified technician working within a stainless steel hood used to grow experimental plants at the Dow Chemical Company's Spectroscopy Laboratory. At the laboratory, radioactive isotopes were used…
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Beckman Model D2 oxygen analyzer with cord and bulb
- 1950s
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,…
- Photographer Hesketh, Dean D.
- Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
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Beckman Model D2 oxygen analyzer
- 1950s
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,…
- Photographer Armstrong & Hess
- Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
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Beckman Model D Industrial Oxygen Analyzer
- 1950s
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,…
- Photographer Hesketh, Dean D.
- Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
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Beckman Research pH meter with Micro Blood pH Assembly and Thermomatic
- 1950 – 1969
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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Beckman Research pH meter dial, close up
- 1950 – 1969
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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Long reservoir reference electrode #78090V
- 1950 – 1969
- Photographer Dietrich, T. A.
- Subject Electrodes, Beckman Instruments, Inc.
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Beckman reference electrode #92301
- 1950 – 1969
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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Helipot Switch
- 1950 – 1969
- Photographer Armstrong & Hess
- Subject Electric switchgear, Beckman Instruments, Inc.
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Helipot Cermet Switch
- 1950 – 1969
- Photographer Armstrong & Hess
- Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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Helipot Series 1390 Circuit Deck Cermet Switch
- 1950 – 1969
- Photographer Armstrong & Hess
- Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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Helipot Servo Systems
- 1950 – 1969
- Photographer Armstrong & Hess
- Subject Servomechanisms, Beckman Instruments, Inc.
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Helipot Model 964 Servo Amplifier and Model 982 Power Supply
- 1950 – 1969
- Photographer Armstrong & Hess
- Subject Servomechanisms, Beckman Instruments, Inc.
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Helipot Cermet Switch
- 1950 – 1969
- Photographer Armstrong & Hess
- Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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Helipot Cermet Switch
- 1950 – 1969
- Photographer Armstrong & Hess
- Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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Helipot Circuit Deck Switch
- 1950 – 1969
- Manufacturer Armstrong & Hess
- Subject Electric switchgear, Beckman Instruments, Inc.
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Helipot Circuit Deck Switch
- 1950 – 1969
- Photographer Armstrong & Hess
- Subject Electric switchgear, Beckman Instruments, Inc.
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Helipot Cermet Switch
- 1950 – 1969
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Circuit deck of a Beckman cermet switch
- 1950 – 1969
- Photographer Armstrong & Hess
- Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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Beckman Model 376 Switch
- 1950 – 1969
- Photographer Herb Radin and Associates
- Subject Electric switchgear, Beckman Instruments, Inc.
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Beckman Model 375 Switch
- 1950 – 1969
- Manufacturer Herb Radin and Associates
- Subject Electric switchgear, Beckman Instruments, Inc.
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Helipot dials
- 1950 – 1969
Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…
- Photographer Armstrong & Hess
- Subject Passive components, Beckman Instruments, Inc.