You Searched For
Start Over You searched for: Date 1950 to 1959 Remove constraint Date: <span class="from" data-blrl-begin="1950">1950</span> to <span class="to" data-blrl-end="1959">1959</span>-
Hand-crank Centrifuge, Babcock Milk Tester
- After 1900 – before 1950
A metal, hand-crank centrifuge with a three-pronged metal base. The base is painted a rusty red color and has been attached to a wooden board for stability. A long metal crank on the side of the base bends at a…
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"Omega" manual breast reliever with red bulb
- After 1920 – before 1959
Glass tube with a collecting reservoir that opens into a funnel (or breast piece). Round red rubber bulb attached to one end of the glass. Stamp in black ink on red bulb reads "Ingram's/'Omega'/London."
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Manual breast pump with black bulb
- After 1920 – before 1959
Glass tube with a collecting reservoir that opens into a funnel (or breast piece). Round black rubber pump attached to one end of the glass.
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28 items
Chemical Supplies Apparatus Chemicals Books
- After 1930 – before 1950
A catalog of chemical supplies and laboratory apparatus manufactured by the Reading Scientific Company. Contains a number of print illustrations depicting the company's products. The advertised supplies range from…
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Cliffs Dow plant in Marquette, Michigan
- After 1934 – before 1970
General view of a section of the interior of the Cliffs Dow wood distillation plant located in Marquette, Michigan. Seeking a source of raw material for its new plastic, ethylcellulose, the Dow Chemical Company joined…
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Cliffs Dow plant in Marquette, Michigan
- After 1934 – before 1970
General view of a section of the interior of the Cliffs Dow wood distillation plant located in Marquette, Michigan. Seeking a source of raw material for its new plastic, ethylcellulose, the Dow Chemical Company joined…
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Double flask for demonstrating anaerobic fermentation
- 1939 – 1967 (Date span attributed to photograph)
Photograph of a double flask used by French biologist, microbiologist, and chemist Louis Pasteur (1822-1895) to demonstrate anaerobic fermentation, as displayed at the Pasteur Institute in Paris. Per notations…
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Apparatus at U.S. Department of Agriculture facility
- 1950s
General view of an unidentified apparatus, possibly a hopper or type of granulation equipment, at an unidentified U.S. Department of Agriculture facility, likely the U.S.D.A.'s Agricultural Engineering Laboratory. Three…
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Autoclave at the Aeronautical Materials Laboratory
- 1950s – circa
General view of an autoclave, used for the fabrication of plastics, at the Naval Air Engineering Center's Aeronautical Materials Laboratory. In the foreground, Laboratory Technical Director J. Hartley Bowen, Jr.…
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3 items
Beckman Model E Ultracentrifuge Rotor
- 1950s
Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With Spinco came the famous Model E Ultracentrifuge, which was…
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Beckman Model G Glass Electrode pH Meter
- 1950
Self contained pH meter with wooden exterior; hinged top door opens to reveal meter face and inlaid paper instructions for use; the dial is calibrated from pH 0 to pH 13 in .1 pH divisions; porcelain enamel lined…
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Delores Horne analyzing weed killer in Dow Analytical Laboratory
- 1950s
General view of chemist Delores Horne analyzing the active constituent of a weed killer in the Dow Chemical Company's Analytical Laboratory located in Midland, Michigan. Per a notation accompanying the photograph, Ms.…
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Dow Chemical Company Glycol plant
- 1950s
General view of the interior of a section of the Dow Chemical Company Glycol plant located in Midland, Michigan.
- Creator Of Work Dow Chemical Company
- Subject Employees, Industries, Glycols, Dow Chemical Company, Machinery
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Dow Chemical Company Styron manufacturing facilities
- 1950s
General view of unidentified employees at work in the Styron manufacturing facilities at the Dow Chemical Company plant located in Midland, Michigan. A Styron belt (also known as a ribbon) is visible being extruded from…
- Creator Of Work Dow Chemical Company
- Subject Plastics, Employees, Extrusion process, Dow Chemical Company, Corporations, Plastics--Extrusion, Plastics industry and trade, Machinery
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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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Interior view of fertilizer apparatus
- 1950s
Close-up view of the interior of an apparatus likely used for the manufacture and/or testing of fertilizer at an unidentified U.S. Department of Agriculture facility.
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Stokes Tablet Press at Agricultural Engineering Laboratory
- 1950s
General view of a Stokes Tablet Press at the U.S. Department of Agriculture's Agricultural Engineering Laboratory facility. A tablet press is a mechanical device that compresses granulated material into tablets or…
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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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Styron belt at Dow Chemical Company facility
- 1950s
General view of employees examining a Styron belt (also known as a ribbon) as it is extruded from a machine in the Styron manufacturing facilities at the Dow Chemical Company plant located in Midland, Michigan. Per…
- Creator Of Work Dow Chemical Company
- Subject Plastics, Employees, Extrusion process, Dow Chemical Company, Corporations, Plastics--Extrusion, Plastics industry and trade, Machinery
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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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U.S. Department of Agriculture drillability apparatus
- 1950s – circa
General view of a drillability apparatus with fertilizer hoppers, a starwheel, and rotating plate mechanism at an unidentified U.S. Department of Agriculture facility.
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Donald Stevens operating sheet-making equipment at Hercules Hopewell plant
- 1951
Close-up view of laboratory operator Donald Stevens using a press to remove water from a sheet of so-called "chemical cotton," i.e. purified cellulose obtained from raw cotton linters, manufactured in the Cellulose…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, Cellulose, Machinery, Stevens, Donald
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Dow Chemical Company saran film manufacturing facilities
- 1951
General view of employees at work in the Dow Chemical Company's saran film manufacturing facilities in Midland, Michigan. Initially developed for the U.S. Army to wrap arms and equipment for transport during World War…
- Creator Of Work Dow Chemical Company
- Subject Plastics, Employees, Industries, Dow Chemical Company, Plastics industry and trade, Machinery
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Fourdrinier machine in use at Hercules Hopewell plant
- 1951
Close-up view of a Fourdrinier machine in use at the Hercules Powder Company plant in Hopewell, Virginia. Per notations accompanying the photograph, this Fourdrinier machine was used to dewater sheets of so-called…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Chemical industry, Cotton, Hercules Incorporated, Corporations, Cellulose, Machinery
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John Coleman operating roll rewinder at Hercules Hopewell plant
- 1951
General view of back tender John Coleman operating a roll rewinder in the Cellulose Department at the Hercules Powder Company plant in Hopewell, Virginia. Per notations accompanying the photograph, the roll rewinder was…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, Cellulose, Machinery, Coleman, John