Search Results
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2 items
Letter from Arnold O. Beckman to Lee de Forest
- 1953-Jan-07
In this letter, Beckman declines to develop de Forest's light amplifier.
- Addressee De Forest, Lee, 1873-1961
- Author Beckman, Arnold O.
- Subject Scientific apparatus and instruments, Light amplifiers
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Memo from George Hare to Arnold O. Beckman
- De Forest Patent 2,594,740
- 1952-Nov-24
The memo outlines the reasons Beckman should not undertake development of Lee de Forest's light amplifier.
- Addressee Beckman, Arnold O.
- Author Hare, George H.
- Subject Scientific apparatus and instruments, Light amplifiers
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2 items
Letter from Lee de Forest to Arnold O. Beckman
- 1952-Nov-19
This letter suggests Beckman might be interested in commercial development of de Forest's new invention, a "sandwich, non-vacuous, light amplifier."
- Addressee Beckman, Arnold O.
- Author De Forest, Lee, 1873-1961
- Subject Scientific apparatus and instruments, Light amplifiers
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6 items
Patent for Electronic Light Amplifier
- 1952-Apr-29
U.S. Patent 2,594,740, filed on behalf of Lee de Forest and William A. Rhodes, describes a device for amplifying the intensity of radiation.
Lee de Forest (1873–1961) was an inventor, most notably of Audion vacuum…
- Creator Of Work De Forest, Lee, 1873-1961, Rhodes, William A.
- Subject Scientific apparatus and instruments, Light amplifiers
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Letter from Lee de Forest to Arnold O. Beckman
- 1936-Nov-10
Lee de Forest states that he returned from a trip to Chicago to find his company in financial disarray. He regrets that Beckman's contracted work was continued, despite an inability to pay for it, and assures him that…
- Addressee Beckman, Arnold O.
- Author De Forest, Lee, 1873-1961
- Subject Financial crises
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Letter from Lee de Forest to Arnold O. Beckman
- 1936-Oct-09
Lee de Forest states that he has "temporarily become disassociated from the activities of De Forest Television Corporation" and advises Beckman to retain any equipment currently in his possession.
Lee de Forest…
- Addressee Beckman, Arnold O.
- Author De Forest, Lee, 1873-1961
- Subject Scientific apparatus and instruments, Financial crises
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2 items
Receipt and memorandum of record
- Circa 1936
The receipt lists materials the De Forest Television Corporation received from Arnold O. Beckman. The memorandum concerns work Beckman performed for the American Television Corporation, the De Forest Television…
- Creator Of Work Beckman, Arnold O.
- Subject Scientific apparatus and instruments, Celluloid, Metal coating
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2 items
Letter from Lee de Forest to Arnold O. Beckman
- 1936-Jul-02
Lee de Forest discusses testing Beckman's film-coating process with antimony. A sample of antimony paper is included.
- Addressee Beckman, Arnold O.
- Author De Forest, Lee, 1873-1961
- Subject Antimony, Metal coating
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2 items
Letter from Arnold O. Beckman to Arthur E. Freston
- 1934-May-28
Arnold O. Beckman provides an overview of the vacuum film-coating process developed for Lee de Forest. The process successfully coated film with magnesium, lead, bismuth, aluminum, and silver. The letter is apparently…
- Addressee Freston, Arthur E.
- Author Beckman, Arnold O.
- Subject Celluloid, Metal coating
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2 items
Letter from Lee de Forest to Arnold O. Beckman
- 1934-May-10
In this letter, de Forest discusses the possibility of using chemicals to fight forest fires.
Lee de Forest (1873–1961) was an inventor, most notably of Audion vacuum tubes in the early twentieth century. His serial…
- Addressee Beckman, Arnold O.
- Author De Forest, Lee, 1873-1961
- Subject Fire extinction, Forest fires--Prevention and control, United States. Forest Service
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Letter from Lee de Forest to Arnold O. Beckman
- 1931-Nov-09
In this letter, de Forest proposes a process that could replace halftone film.
Lee de Forest (1873–1961) was an inventor, most notably of Audion vacuum tubes in the early twentieth century. His serial business ventures…
- Addressee Beckman, Arnold O.
- Author De Forest, Lee, 1873-1961
- Subject Photoengraving--Halftone process
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2 items
Letter from Lee de Forest to Arnold O. Beckman
- 1931-Oct-22
De Forest inquires about Beckman's progress toward a chemical coating that might change in opacity or color, and details the "very fine and uniform quality" of silver coated film de Forest is able to produce.
Lee de…
- Addressee Beckman, Arnold O.
- Author De Forest, Lee, 1873-1961
- Subject Silver films (Metal coating), Silvering, Celluloid
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Letter from Lee de Forest to Arnold O. Beckman
- 1931-Oct-09
The letter discusses the "very nice results" of using new Eastman film and queries as to the possible effects of light upon silvering solution.
Lee de Forest (1873–1961) was an inventor, most notably of Audion vacuum…
- Addressee Beckman, Arnold O.
- Author De Forest, Lee, 1873-1961
- Subject Silver films (Metal coating), Silvering, Celluloid
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Letter from Lee de Forest to Arnold O. Beckman
- 1931-Sep-09
The letter requests deliverables of 100 feet of silvered film, and two 10 foot pieces with a silver coating on emulsion film and clear stock.
Lee de Forest (1873–1961) was an inventor, most notably of Audion vacuum…
- Addressee Beckman, Arnold O.
- Author De Forest, Lee, 1873-1961
- Subject Silver films (Metal coating), Silvering
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3 items
Formula for silvering film
- 1931-Aug-25
The handwritten document was created in connection with Arnold O. Beckman's consulting work for Lee de Forest.
- Creator Of Work Beckman, Arnold O.
- Subject Silver films (Metal coating), Silvering, Celluloid
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Letter from Arnold O. Beckman to Lee de Forest
- 1931-Jul-18
Arnold O. Beckman, then an assistant professor of chemistry at Caltech, offers his assistance as a consulting chemist.
Lee de Forest (1873–1961) was an inventor, most notably of Audion vacuum tubes in the early…
- Addressee De Forest, Lee, 1873-1961
- Author Beckman, Arnold O.
- Subject Celluloid, Electroplating
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Letter from Lee de Forest to the Dean of Chemistry at Caltech
- 1931-Jul-15
In this letter, Lee de Forest requests a referral to a chemist who might help electroplate film.
Lee de Forest (1873–1961) was an inventor, most notably of Audion vacuum tubes in the early twentieth century. His serial…
- Author De Forest, Lee, 1873-1961
- Subject Celluloid, Electroplating
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Letter from W. L. Pereira to Arnold O. Beckman
- 1957-Sep-20
Architect William Pereira writes to invite Arnold O. Beckman to a dinner in celebration of an award for the Helipot building in Newport Beach, California. The Pereira & Luckman-designed building was to be honored as one…
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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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2 items
Letter from D. C. Duncan to Arnold O. Beckman
- 1956-Dec-03
The memorandum documents complaints about the architecture firm Pereira & Luckman. Duncan states that "we have been anywhere from moderately displeased to completely upset with P & L."
- Addressee Beckman, Arnold O.
- Author Duncan, Donald C.
- Subject Pereira, William L., 1909-1985, Architects, Luckman, Charles, 1909-1999, Beckman Instruments, Inc.
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Progress Report on glass electrodes
- What is new about L & N electrodes
- 1955-Aug-15
The report concerns the business of electrodes, including legally challenging questions about possible patent infringement.
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Gas Detector Specifications (Beckman Model 150 Mass Spectrometer)
- 1955-Aug-05
Mass spectrometers measure the mass of sample components after ionization.
Walter Donner's work with Beckman Instruments including oversight of the development of medical monitoring equipment for the Apollo, Mercury,…
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76 items
Der Bildungstrieb der Stoffe
- 1858
Early examples of paper chromatography from German chemist Friedlieb Ferdinand Runge, who is considered to be the originator of the analytic technique. Runge investigated the color reactions of various chemical…
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131 items
Instruction Manual, Berkeley Electronic Analog Simulating Equipment
- 1954-Jan-10
Beckman Instruments' analog computers were being produced by their Berkeley Division as early as 1953. The company produced analog computers -- also called automation, data reduction, or data handling systems -- for the…