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Start Over You searched for: Date 1940 to 1949 Remove constraint Date: <span class="from" data-blrl-begin="1940">1940</span> to <span class="to" data-blrl-end="1949">1949</span>-
119 items
Preliminary Instructions, Beckman Infrared Spectrophotometer Model IR-2
- Bulletin 147-A
- 1946
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…
- Creator Of Work Beckman Instruments, Inc.
- Subject Scientific apparatus and instruments, Spectrophotometer, Infrared spectroscopy, Beckman Instruments, Inc.
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67 items
Hanford Engineer Works Manual for Beckman Instruments equipment
- 1944-Oct
This instruction manual for several Beckman Instruments products was created by the Hanford Site Instrument Department, specifically for use with Beckman instruments used in their facility. Instruments covered in this…
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3 items
The Beckman Photoelectric Spectrophotometer
- Bulletin 79
- 1941-May-20
This report is not an instruction manual, but instead an overview of the (DU) photoelectric quartz spectrophotometer, containing descriptions of its components and specifications.
The first Beckman Instruments DU…
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2 items
Letter from Edwin W. Taylor to Arnold O. Beckman
- 1947-Aug-15
This letter includes a report on existing Beckman trademarks as of 1947, including information on the "acidimeter" and the point at which that instrument became known as the pH meter (1935).
- Addressee Beckman, Arnold O.
- Author Taylor, Edwin W.
- Subject Hydrogen-ion concentration--Measurement--Instruments, Patents, Trademarks, Beckman Instruments, Inc.
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Letter from Linus Pauling to Durand Churchill, Jr.
- 1945-Jun-08
In this letter Pauling reiterates requests for permission to discuss and publish on the oxygen meter, and argues for loosening security classification. He cites Arnold O. Beckman's permission to discuss the project…
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Letter from Durand Churchill, Jr. to Arnold O. Beckman
- 1945-May-24
In this letter, Churchill confirms that the National Defense Research Committee (NDRC) has granted Beckman permission to discuss the Pauling Oxygen Meter at an American Chemical Society meeting.
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Letter from Arnold O. Beckman to Commanding Officer, Naval Training Center
- 1946-Apr-26
In this letter, Beckman requests that a former employee, Robert A. Crane, receive an early discharge from the Navy in light of his father's poor health. Beckman notes that he has an open position for Crane.
- Author Beckman, Arnold O.
- Subject United States. Navy, Beckman Instruments, Inc.
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Letter from Arnold O. Beckman to Durand Churchill, Jr.
- 1945-May-10
In this letter, Beckman requested permission to discuss the Pauling Oxygen Meter and made the case that the National Defense Research Committee (NDRC) should lift the "Restricted" classification.
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3 items
Oxygen Recorders: Tentative Outline of Characteristics Desired
- Circa 1943
The oxygen recorder described was intended for analyzing flue gases produced from burning oil or coal.
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Letter from Vannevar Bush to Arnold O. Beckman
- 1944
The letter expresses Bush's "personal and official appreciation and commendation" for contracted work performed in furtherance of the war effort.
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Model G pH meter cable assembly diagram
- Dwg. No. 662-000740
- 1949-Feb-08
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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3 items
Beckman pH Meter (Laboratory Model) brochure
- 1935 – 1940
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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3 items
Beckman pH Meter (Industrial Model) brochure
- 1935 – 1940
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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4 items
Beckman pH Meter (Glass Electrode) brochure
- 1935 – 1940
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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New! Inexpensive continuous pH measurements with the Beckman glass electrode equipment!
- Bulletin No. 17
- 1935 – 1940
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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2 items
Beckman Quinhydrone pH Meter
- 1935 – 1940
The quinhydrone electrode in this instrument was an alternative to Beckman's glass electrode. Quinhydrone electrodes are not reliable at measuring a pH greater than 8, at measuring solutions with strong oxidizing or…
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10 items
A New Spectrophotometer Employing a Glass Fery Prism
- 1949-May
This paper describes the use of an older style of glass prism in a new spectrophotometer made by Beckman Instruments. This new spectrophotometer would become the Model B, the glass prism making it a cheaper alternative…
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7 items
Patent for Hydrogen Tube
- 1949-Mar-08
Patent #2,463,743 for a hydrogen tube designed by H. Howard Cary and Warren Baxter during their time at National Technical Labs, a precursor to Beckman Instruments. This tube was designed for use in UV…
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Supplement Number 1 to Bulletin #206-B
- 1949-Nov
The ultraviolet Model B was marketed as an easier to use and more affordable alternative to the Beckman DU Spectrophotometer.
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company…
- Creator Of Work Beckman Instruments, Inc.
- Subject Scientific apparatus and instruments, Spectrophotometer, Beckman Instruments, Inc., Ultraviolet radiation
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16 items
Instruction Manual for Model B Spectrophotometer
- Bulletin 206-B
- 1949-Jul-12
The ultraviolet Model B was marketed as an easier to use and more affordable alternative to the Beckman DU Spectrophotometer.
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company…
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11 items
Instructions, Beckman Infrared Spectrophotometer, Model IR-2
- Bulletin 153-B
- 1947-Nov
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…
- Creator Of Work Beckman Instruments, Inc.
- Subject Spectrophotometer, Infrared spectroscopy, Beckman Instruments, Inc.
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Instructions for Beckman Model G pH meter
- 1949
Owners of the Model G would have found these instructions tucked inside the lid of the wooden case surrounding the instrument.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the…
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The Rejuvenation of Aged Glass Electrodes
- Bulletin 69-B
- 1949-Dec
Glass electrodes were used in Beckman pH meters and various other instruments.
- Creator Of Work Beckman Instruments, Inc.
- Subject Electrodes, Glass, Beckman Instruments, Inc.
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3 items
Beckman IR-2 Spectrophotometer Questionnaire
- Bulletin 191
- 1948-Jan
This questionnaire contains frequently asked questions and common issues with the performance of the IR-2.
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O.…
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2 items
Letter from S. S. Prentiss to Arnold O. Beckman
- 1945-Aug-11
In this letter, Prentiss shares his initial impressions of a prototype aircraft oxygen meter.
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up…