Search Results
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Littrow Spectroscope
- 1911
"The collimators and observing telescopes have apertures of 50mm., and focus by rack and pinion. Two 60 degree prisms of heavy flint glass and of 70mm. side are furnished with the instrument. The mirror may be used in…
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For over 50 years, we've been with you every step of the way
- 1985
Advertisement for various instruments made by Beckman Instruments, Inc., touting the company's long history of producing pH meters, spectrophotometers, centrifuges, and other instruments.
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Now...a better double-beam infrared spectrophotometer...the Beckman IR-4
- 1956
Advertisement for the new IR-4 Spectrophotometer, which would be on display at the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy (PittCon) in 1956.
The Beckman Instruments IR spectrophotometers…
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Beckman is everywhere in the hospital.
- 1974
Advertisement for the many Beckman Instruments products that are used in hospital and health services, including glucose analyzers, liquid scintillation counters, spectrophotometers, and oxygen analyzers (among many…
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Memo from Arnold O. Beckman to NTL staff
- 1950-Aug-01
This internal National Technical Laboratories memo expresses Dr. Beckman's concern that NTL is losing its place in the infrared spectrophotometer field, with a special focus on competitors Baird and Perkin-Elmer. The…
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Letter from L. M. K. Boelter to Arnold O. Beckman
- 1953-Jul-16
In this letter, Dr. Boetler thanks Arnold O. Beckman for donating several components of an EASE computer to the University of California Los Angeles's Department of Engineering. Dr. Boetler also thanks Dr. Beckman…
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Beckman Model G pH meter circuit diagram
- 1943-Dec-02
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 “acidimeter” with its…
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Characteristics and use of absorption cells and holder for DU Spectrophotometer
- Undated
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical Laboratories. Spurred by employee Howard Cary (who had previously been involved in pH meter…
- Creator Of Work Beckman Instruments, Inc.
- Subject Photoelectric cells, Scientific apparatus and instruments, Spectrophotometer, Beckman Instruments, Inc.
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Beckman DU Spectrophotometer phototube selection guidelines
- Undated
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical Laboratories. Spurred by employee Howard Cary (who had previously been involved in pH meter…
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Evaluation of the Beckman Model G-2 pH meter
- Undated
Undated notes by an unknown author, although his person was very likely a Beckman Instruments employee.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus…
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Operation method for Beckman "DU" Spectrophotometer
- Undated
The watermark on the paper indicates that these directions may have been written by the Columbus Water and Chemical Testing Laboratory.
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the…
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Beckman Model 80 Oxygen Analyzer
- Circa 1959
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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Letter from P. E. Paules to Beckman Instruments
- 1952-Apr-16
This letter to an unidentified person at Beckman Instruments, Inc. describes an omission in the Model G pH meter documentation, which does not include replacing the batteries as a possible fix for a specific problem.
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Beckman Model 620 Gas Chromatograph Programmer
- Circa 1964
Beckman Instruments entered the gas chromatograph business in 1956 with the acquisition of the successful Watts Manufacturing Company. Later that year, Beckman Instruments produced its first gas chromatograph, the GC-1,…
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Beckman Model 900 pH Analyzer
- Circa 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 Airfuge centrifuge
- 1975 – 1984
This particular model of centrifuge was air-driven.
Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With…
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Beckman Model TJ-6 Centrifuge
- Circa 1976
The TJ-6 centrifuge was introduced in 1976.
Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With Spinco came…
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Beckman Model 4500 Digital pH Meter
- Circa 1975
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 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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Beckman Model 590 Exhaust Analyzer (HC/CO analyzer)
- 1973
This instrument detects pollutants in the exhaust from vehicles with combustion engines.
Beckman Instruments, Inc. became interested in measuring, controlling, and fighting air pollution in the late 1940s and early…
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Man using a Beckman Model L Continuous Flow Ultracentrifuge
- 1960s
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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Beckman OM-14 Oxygen Analyzer
- Undated
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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Beckman Model 958 NOx efficienty tester
- Undated
This instrument measures the nitrogen oxides (NOx) produced during the combustion of gasoline. Once in the atmosphere, they can contribute to the formation of smog and air pollution.
Beckman Instruments, Inc. became…
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Beckman Ultramicro Analytical System
- Undated
The system this unidentified woman is using includes a Model 152 Mircrofuge.
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Spectrophotometric data
- Undated
Table of spectrophotometer and pH readings of various substances, including strychnine, caffeine, amphetamine, benadryl, and ascorbic acid. As this document is undated and vaguely titled, it is unclear which instrument…
