Search Results
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Bunsen Burner
- Undated
An icon of experimental chemistry, as well as a standard piece of equipment in scientific laboratories and high school classrooms alike, the Bunsen burner was built in 1854 by Peter Desaga, an assistant in German…
- Subject Bunsen burner
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Humboldt Meeker Burner
- Undated
Meeker burners function the exact same way as Bunsen burners except that they are used for objects that require a wider flame base. The Meeker burner can produce more heat than a Bunsen burner and features a distinctive…
- Manufacturer Humboldt Manufacturing Company
- Subject Bunsen burner, Meeker burner, Humboldt Manufacturing Company
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Precision Scientific Meeker Burner
- Undated
Meeker burners function the exact same way as Bunsen burners except that they are used for objects that require a wider flame base. The Meeker burner can produce more heat than a Bunsen burner and features a distinctive…
- Manufacturer Precision Scientific Company
- Subject Bunsen burner, Precision Scientific Company, Meeker burner
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Beckman Instruments facilities – Arnold O. Beckman, Incorporated
- Circa 1953
Arnold O. Beckman, Inc. was founded during World War II to handle the development of a secret project: an oxygen meter designed by Linus Pauling for the National Defense Research Committee. Pauling and the NDRC…
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Arnold O. Beckman and Mabel Beckman with Gerald Ford
- Undated
Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH meter in 1934 and thus began a long career manufacturing scientific and medical instruments with National Technical Laboratories,…
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Unidentified men planning the Beckman Coulter Heritage Exhibit
- Undated
This exhibit was ultimately installed in the Fullerton, California headquarters of Beckman Coulter in 2009. The men in this image may be employees of Activate (formerly DisplayWorks), the exhibit and marketing…
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Beckman Instruments facilities – Australia
- Undated
This building may have been in Sydney, Australia, where Beckman Instruments had facilities.
- Subject Buildings, Beckman Instruments, Inc.
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Arnold O. Beckman with Richard Nixon
- 1962
Arnold Beckman supported former Vice President Richard Nixon in his unsuccessful 1962 campaign for governor of California, including speaking at a campaign rally. In this image "Professor Beckman" gives a lecture on…
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Type 650-A Impedance Bridge
- After 1933
Rectangular wooden case with sloped top; black instrument panel on top surface; instrument panel features six connection posts for the external generator, a galvanometer meter under glass, nine black plastic knobs, four…
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Evelyn Photoelectric Colorimeter
- 1950 – 1959
Wooden box with metal instrument panel on top; four small black rubber feet on bottom; front of wooden box contains printed instructions and folds down to show inside of instrument; rectangular wooden area attached to…
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Sunderman Model RCM14B Direct Reading Type Conductivity Bridge
- Undated
Wooden box with black metal instrument panel; four padded metal feet on bottom; leather handle attached to side with two nickel connectors; nickel lock on side of base and lid; lid connects to base via two coated metal…
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Galvanometer
- 1960
Six volt galvanometer in a rectangular wooden case with rubber feet. A brass lever at the top of the case provides coarse zero adjustment; two black plastic and metal knobs on the right side of the case provide fine…
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Sunderman Model RCM14B1 Conductivity Bridge
- Circa 1950
Hardwood case with a leather handle and metal hinges and clasp; aluminium interior instrument panel has black finish; instructions on paper are inside the lid; the instrument panel features four black plastic knobs, two…
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Weston Ammeter Model 45
- 1888
Finished wooden box; four metal feet on bottom (box must be set on its side for instrument to function); top of box has two brass holders for missing handle and metal strip; side lifts up half way exposing a painted…
- Manufacturer Weston Electrical Instrument Corporation
- Subject Ammeters, Weston Electrical Instrument Corporation
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Beckman Instruments, Inc.: International Group
- 1965
A group of men and women identified as the "international group" associated with Beckman Instruments. Dick Dosier, Joe Lewis, Ed Cherniss ("V.P. Intl."), and Bob Erickson ("Exec. V.P.") are identified in inscriptions.
- Subject Beckman Instruments, Inc.
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Louis Rosso and Hal Pepper at ASSED sales meeting
- 1970
Louis T. Rosso joined Beckman Instruments in 1959, initially working in product marketing in the biomedical instrumentation division. He assumed the role of chief operating officer and president of SmithKline Beckman in…
- Photographer Laursen, Rene
- Subject Beckman Instruments, Inc.
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Unidentified men with unidentified apparatus
- Undated
These men and this instrument are from the Special Products Division of Beckman Instruments.
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Beckman Instruments, Inc.: International Group
- 1960
A group of men only identified as an "international group" standing with a Beckman Instruments pH meter.
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Potentiometer
- Undated
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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Variable Capacitor
- Undated
Tall rectangular wooden base with black plastic instrument panel; instrument panel is attached to base via four metal screws, two on each side; two small black plastic knobs that adjust up and down as they are turned…
- Manufacturer Leeds and Northrup Company
- Subject Variable capacitors, Leeds and Northrup Company
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Precision Condenser Type 722-N
- After 1944
Wooden box with no lid; black painted metal instrument panel on top; engraved writing on top left corner; two metal knobs projecting from panel on upper right side most likely for running electrical current;…
- Manufacturer General Radio Company
- Subject Capacitors, General Radio Company
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Portable Hydrogen Ion Potentiometer
- Circa 1960
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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Variable Resistor
- Undated
Variable resistors are also known as potentiometers. 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…
- Manufacturer Leeds and Northrup Company
- Subject Variable Resistor, Potentiometer, Leeds and Northrup Company
