Search Results
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5 items
Bausch & Lomb Duboscq Type Colorimeter
- 1940s
A: Cast iron base attached to a sloping cast iron upright supporting the reader, prisms, sample cups, plungers, and a mechanism for raising and lowering the sample cups; two metal knobs control the height of the sample…
- Manufacturer Bausch & Lomb Optical Company
- Subject Bausch & Lomb Optical Company, Colorimetry--Instruments, Colorimetry
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18 items
Early Beckman facilities, Pasadena and South Pasadena
- Undated
- 1934 – 1935
- 1940
- 1946
- 1949
- 1950
A Pasadena garage was the first home of the National Postal Meter Company, founded by Arnold Beckman in 1934. The company soon became National Technical Laboratories, with a focus on pH meters. In 1935, the company…
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2 items
Hot relaxing plates on drawing machine
- 1946-Mar-01
Two views of hot relaxing plates on a drawing machine used at the DuPont plant in Seaford, Delaware during the early stages of synthetic fiber production and research. The plate on the left was electric-heated and the…
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11 items
Arnold O. Beckman with employees
- Circa 1940 – circa 1979
Though the photo set is identified as Beckman with "employees," some of the photographs depict ceremonies and visits to non-corporate locations, like CalTech. Some photographs are attributed, dated (1941, 1962, 1967),…
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Alchemist in Green Using Bellows
- Circa 1928 – 1965
An alchemist wearing a green robe uses a pair of bellows to control the heat of the fire beneath his crucible. Other vessels sit on the furnace at his side, and to his left a large still-head for distillation rests over…
- After Teniers, David, 1610-1690
- Subject Teniers, David, 1610-1690, Alchemy, Alchemy in art
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3 items
Company's Views Concerning the Union
- 1946-Oct
In a series of one page messages to the employees of National Technical Laboratories, Arnold Beckman laid out a case against unionization.
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Let's Make It for Keeps
- 1947-Nov
Color print magazine advertisement for Community silverware. This ad appeared in the Ladies' Home Journal, November 1947.
- Artist Whitcomb, Jon, 1906-1988
- Subject Silver-plated ware, Silverware, Electroplating, Oneida, ltd.
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U.S. Department of Agriculture personnel
- 1940s
Group photograph of U.S. Department of Agriculture personnel at an unidentified facility. The individuals in the photograph are identified as follows:
Standing (left to right): Mr. Whittaker; Louise Gardner; J. R.…
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DDT is good for me-e-e!
- 1947-Jun-30
Color print magazine advertisement for Pennsalt DDT products. This ad appeared in Time Magazine, June 30, 1947.
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Protect Your Children Against Disease-Carrying Insects!
- 1947
Black and white print magazine advertisement for Trimz DDT wallpaper. This ad appeared in Women's Day, June 1947.
- Subject Wallpaper, DDT (Insecticide), Insecticides, Toxins, Women in advertising
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12 items
Operating Instructions, the Beckman Model DU Photoelectric Quartz Spectrophotometer
- Bulletin 91-B
- 1946
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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Continuous polymerizer salt holding tank
- 1947-Apr-09
General view of a continuous polymerizer salt holding tank used during the early stages of synthetic fiber production and research at DuPont.
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Monomer still used in production of nylon
- 1947-Apr
General view of a monomer still used during the early stages of nylon production and research at DuPont. The photograph is labeled "Figure 2," indicating that it appeared in a report or publication.
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Two-gear melt-pool booster pump
- 1947-Apr
General view of the component parts of a two-gear melt-pool booster pump used during the early stages of synthetic fiber production and research at DuPont. Typically, such booster pumps were used to feed a bubble-free…
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Thermoswitch and thermoregulators used in production of synthetic fibers
- 1946-Aug-09
- 1947-Mar
Assorted apparatus, including a Fenwal Thermoswitch and Thermoregulator, H-B Mercury-in-glass Thermostat, and Scaico Thermostat, used during the early stages of synthetic fiber production and research at DuPont.…
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Continuous denier meter used in production of synthetic fibers
- 1947-Mar
General view of a continuous denier meter used to measure the denier, or thickness, of filaments during the early stages of synthetic fiber production and research at DuPont. The spool of yarn to be measured is visible…
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2 items
Measuring cell used in production of synthetic fibers
- 1947-Mar
Two views of a measuring cell used during the early stages of synthetic fiber production and research at DuPont. Typically, such cells were placed in an electrolyte bath as part of a metered device used to measure the…
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Yarn windup for production of synthetic fibers
- 1947-Mar
General view of a yarn windup used during the early stages of synthetic fiber production and research at DuPont. The components of the windup are identified as follows: windup rolls (left); gear box (center); and…
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2 items
Six-position staple spinning unit
- 1947-Mar
Two views of a six-position staple spinning unit used during the early stages of synthetic fiber production and research at DuPont. Various components of the spinning unit are visible in the photograph, including a pump…
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Pump block for six-position spinner
- 1947-Mar
Close-up view of the pump block of a six-position spinner used during the early stages of synthetic fiber production and research at DuPont. During the production of nylon, melt from the spinning machine typically…
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Trumpet and chamber for roll crimper
- 1947-Mar
Detail view of a trumpet and chamber for a 2.5-inch-wide roll crimper used to crimp textile fibers during the early stages of synthetic fiber production and research at DuPont. Typically, fibers entered a crimper…
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High-speed creel guide
- 1947-Mar
Detail view of a high-speed creel guide used during the early stages of synthetic fiber production and research at DuPont. "Creel" refers to a rack holding bobbins or spools for spinning. The photograph is labeled…
- Subject Nylon, E.I. du Pont de Nemours & Company, Machinery
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Wide-roll crimper chamber
- 1947-Mar
Detail view of a wide-roll crimper chamber used to crimp textile fibers during the early stages of synthetic fiber production and research at DuPont. Typically, fibers entered a crimper machine via drive pulleys and…
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Detail view of crimper used for production of nylon
- 1947-Mar
Detail view of a type of crimper used to crimp textile fibers during the early stages of synthetic fiber production and research at DuPont. Typically, fibers entered the machine via drive pulleys and were fed into a…
- Subject Nylon, E.I. du Pont de Nemours & Company, Machinery
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3 items
Measuring tension on drawing machine used for production of nylon
- 1947-Mar
Three close-up views of tension measurements taken on various components of a drawing machine, including the draw, creel, and crimper, used during the early stages of nylon production and research at DuPont. The…
