Search Results
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Drillability apparatus components
- 1950s
Component parts, likely of a drillability apparatus, used at an unidentified U.S. Department of Agriculture facility.
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Geiger counter in use at U.S. Department of Agriculture facility
- 1950s – circa
View of chemist William A. Jackson using a Gieger counter to examine a package at an unidentified U.S. Department of Agriculture facility. The U.S.D.A. commonly used radioactive material for a variety of research and…
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Kiln in use at U.S. Department of Agriculture facility
- 1950s – circa
View of chemist George Wieczorek removing a vessel from a Pereco kiln at an unidentified U.S. Department of Agriculture facility.
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Radioactive material containers
- 1950s – circa
General view of assorted containers and components used to house radioactive materials. The jar labels include space to record the isotope, amount, and date. These containers are believed to have been used as part of…
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Radioactive material handling at U.S. Department of Agriculture facility
- 1950s – circa
Close-up view of the handling of radioactive material at an U.S. Department of Agriculture facility. The U.S.D.A. commonly used radioactive material for a variety of research and testing, including the study of…
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Radioactive material handling at U.S. Department of Agriculture facility
- 1950s – circa
George Wieczorek (right) and two unidentified chemists handling radioactive material at an U.S. Department of Agriculture facility. The U.S.D.A. commonly used radioactive material for a variety of research and testing,…
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Geiger counter in use at U.S. Department of Agriculture facility
- 1950s – circa
View of chemist George Wieczorek (right) using a Geiger counter to measure ionizing radiation in an unknown substance, likely soil or fertilizer, at an unidentified U.S. Department of Agriculture facility.
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Granulation equipment at the Agricultural Engineering Laboratory
- Circa 1953
General view of granulation equipment used at the U.S. Department of Agriculture's Agricultural Engineering Laboratory located in Beltsville, Maryland. This equipment is believed to have been used by chemist John O.…
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Shell Chemical Corporation barge
- Circa 1953
General view of the Shell Corporation's oceanic barge, known as "Ammonia Mariner." The barge was used to transport approximately 50,000 tons of ammonia fertilizer each year from Pittsburg, California to storage…
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Fertilizer storage piles at the Agricultural Engineering Laboratory
- Circa 1953
General view of fertilizer storage piles supported between uprights at the U.S. Department of Agriculture's Agricultural Engineering Laboratory. Text accompanying the photograph notes that each row contained a full set…
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Small-scale continuous granulation equipment
- Circa 1953
General view of small-scale continuous granulation equipment used at the U.S. Department of Agriculture's Agricultural Engineering Laboratory.
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Drillability apparatus at the Agricultural Engineering Laboratory
- Circa 1953
General view of an unidentified room at the U.S. Department of Agriculture's Agricultural Engineering Laboratory showing a drillability apparatus with fertilizer hoppers, a starwheel, and rotating plate mechanism.
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Fertilizer trays at the Agricultural Engineering Laboratory
- 1953-Jul-15
General view of the trays used to expose fertilizer to humidity in the Air Control Room at the U.S. Department of Agriculture's Agricultural Engineering Laboratory.
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Fertilizer bags at Agricultural Engineering Laboratory
- 1953-Jul-15
General view of the Air Control Room at the U.S. Department of Agriculture's Agricultural Engineering Laboratory showing three bags of fertilizer in storage under three bags of sand.
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4 items
Beckman Instruments Helipot Division, Newport Beach plant
- 1950s
A series of photographs depicting the future site of the Helipot Division's Newport Beach plant and the building's appearance in the mid-1950s.
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2 items
Students' Potentiometer
- 1950s
Potentiometers are used to measure electromotive force (emf) by balancing it with a known emf. The concept was first developed in 1841 by J. C. Poggendorff and improved throughout the 19th century by Latimer Clark and…
- Manufacturer Leeds and Northrup Company
- Subject Potentiometer, Leeds and Northrup Company
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Postcard and French postage stamp commemorating Louis Pasteur
- After 1885 – before 1953
Postcard image is a reproduction of Finnish painter Albert Edelfelt's famed portrait "Pasteur Dans Son Laboratoire" [Pasteur In His Laboratory]. The portrait depicts Pasteur in his laboratory at the rue d'Ulm,…
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ORLON teaches new fall fashions to keep their figure in the wash!
- 1950s
Color print magazine advertisement for Orlon, a Dow trademarked acrylic fiber. The advertisement details the major properties of Orlon: "Orlon is resistant to sunlight and atmospheric gases, which makes it ideal for…
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Helipot Potentiometers and 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…
- Subject Potentiometer, Beckman Instruments, Inc.
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Beckman DIP Resistor Networks
- 1950 – 1969
Resistor networks combine several resistors into a single component. Dual in-line package (DIP) networks are rectangular in shape, with two parallel rows of pins for through-hole mounting to a circuit board.
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Nurse in maternity ward, using Beckman Model D oxygen analyzer to monitor an infant in an incubator
- 1950s
Los Angeles County General Hospital nurse Mary Finlay is monitoring the oxygen levels of a prematurely born infant in an incubator, to provide just the right oxygen mixture. Too little oxygen has obvious repercussions,…
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Industrial Instruments Type DR51D Decade Resistance
- 1950 – 1969
In 1965, Beckman Instruments acquired Industrial Instruments, Inc. The Cedar Grove, New Jersey-based company manufactured solution conductivity analyzers and other industrial instruments.
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Beckman Model AB-3X1 Auto Bridge
- 1950 – 1969
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Beckman Component Taping Device
- 1950 – 1969
- Photographer Commercial Photographic Company
- Subject Scientific apparatus and instruments, Beckman Instruments, Inc.
