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3 items
Bausch & Lomb Abbe Refractometer Serial No. 380
- 1919 – 1926
A: Refractometer
Instrument has round cast iron base; on the base is a rectangular glass mirror mounted to allow rotation; a single black pillar supports the prism alidade, the black cylindrical telescope viewer, and…- Manufacturer Bausch & Lomb Optical Company
- Subject Bausch & Lomb Optical Company, Refractometers, Optics
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2 items
Oil-Immersion Microscope
- Circa 1946
A: Microscope
Ernst Leitz oil-immersion microscope; instrument rests on wishbone-shaped base with a single beam extending from the center before splitting into two sections: an arm supporting the telescope and…- Manufacturer Ernst Leitz (Firm)
- Subject Microscopes, Ernst Leitz (Firm)
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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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2 items
Bausch & Lomb Abbe Refractometer
- 1937 – 1941
A: Refractometer
Instrument has round base with black finish; on the base is a double-sided circular glass mirror mounted to allow full rotation; a black pillar supports the prism alidade, the black brass cylindrical…- Manufacturer Bausch & Lomb Optical Company
- Subject Bausch & Lomb Optical Company, Refractometers, Optics
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2 items
Bausch & Lomb Duboscq Type Colorimeter
- Undated
A: Duboscq type colorimeter, biological, with electric illuminator. Hollow black cast iron base attached to a sloping cast iron upright supporting the reader, prisms, and sample cups; reader detaches with two metal…
- Manufacturer Bausch & Lomb Optical Company
- Subject Bausch & Lomb Optical Company, Colorimetry--Instruments, Colorimetry
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Rex Badder measuring glass coils on continuous reactor
- 1957-Oct-02
General view of master glassblower Rex Badder measuring the coils on a nine-foot continuous reactor manufactured in the Dow Chemical Company's Glass Fabrication department. Founded in 1925, the department was…
- Creator Of Work Dow Chemical Company
- Subject Employees, Glass blowing and working, Laboratories, Dow Chemical Company, Glass manufacture, Glassware, Badder, Rex
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Hugh Morrison and Wayne Doehring at work in Glass Fabrication department
- 1957-Oct-02
General view of master glassblower Hugh Morrison blowing through a tube while Wayne Doehring winds glass onto a mandril to form a coil. This photograph was taken in the Dow Chemical Company's Glass Fabrication…
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Stan Mikols and Dale Snyder examining blueprints in Glass Fabrication department
- 1957-Oct-02
General view of crew leader Stan Mikols (left) and Dale Snyder examining a blueprint used to manufacture a piece of glass in the Dow Chemical Company's Glass Fabrication department. Founded in 1925, the department was…
- Creator Of Work Dow Chemical Company
- Subject Employees, Laboratories, Dow Chemical Company, Glass manufacture, Blueprints, Glassware, Mikols, Stan, Snyder, Dale
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Wesley Smith filling absolute pressure gauge in Glass Fabrication department
- 1957-Oct-02
General view of Wesley Smith filling an absolute pressure gauge manufactured at the Dow Chemical Company's Glass Fabrication department with mercury. Founded in 1925, the department was responsible for the fabrication…
- Creator Of Work Dow Chemical Company
- Subject Employees, Laboratories, Dow Chemical Company, Glass manufacture, Glassware, Scientific apparatus and instruments, Pressure gages, Smith, Wesley
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Dick Kowalczyk welding side arm onto glass polymerizer
- 1957-Oct-02
General view of Dick Kowalczyk welding a side arm onto a glass polymerizer manufactured in the Dow Chemical Company's Glass Fabrication department. Founded in 1925, the department was responsible for the fabrication and…
- Creator Of Work Dow Chemical Company
- Subject Welding, Laboratories, Dow Chemical Company, Glass manufacture, Machinery, Glassware, Employees, Kowalczyk, Dick
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Bill Pahl heating and compressing glass tube
- 1957-Oct-02
General view of Bill Pahl alternately heating and compressing a glass tube, part of a semi-microfractionation column manufactured in the Dow Chemical Company's Glass Fabrication department. Founded in 1925, the…
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Merlyn Smith molding a flange in Glass Fabrication department
- 1957-Oct-02
General view of Merlyn Smith molding a flange on a six-inch pipe manufactured in the Dow Chemical Company's Glass Fabrication department. Founded in 1925, the department was responsible for the fabrication and repair of…
- Creator Of Work Dow Chemical Company
- Subject Employees, Glass blowing and working, Laboratories, Dow Chemical Company, Turning (Lathe work), Glass manufacture, Machinery, Glassware, Lathes, Smith, Merlyn
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Wayne Doehring with glass polymerizer in Glass Fabrication department
- 1957-Oct-02
General view of Wayne Doehring placing a glass polymerizer into the annealing furnace in the Dow Chemical Company's Glass Fabrication department. Founded in 1925, the department was responsible for the fabrication and…
- Creator Of Work Dow Chemical Company
- Subject Employees, Laboratories, Dow Chemical Company, Glass manufacture, Furnaces, Glassware, Doehring, Wayne
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Carl Goetz blowing glass at Dow Chemical Company facility
- 1957-Oct-02
General view of apprentice Carl Goetz blowing out a distillation head of a glass tube manufactured in the Dow Chemical Company's Glass Fabrication department. Founded in 1925, the department was responsible for the…
- Creator Of Work Dow Chemical Company
- Subject Employees, Glass blowing and working, Laboratories, Dow Chemical Company, Glass manufacture, Blown glass, Glassware, Goetz, Carl
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Joe Skalnican using automatic calibrating machine in Glass Fabrication department
- 1957-Oct-02
General view of glassblower Joe Skalnican using an automatic calibrating machine to apply calibration marks to a piece of glass manufactured in the Dow Chemical Company's Glass Fabrication department. Founded in 1925,…
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Ken Altman and Francis Parkinson, Jr. examining glassware at Dow Chemical Company facility
- 1957-Oct-02
General view of shop foreman Ken Altman (left) and Francis Parkinson, Jr. examining assorted glassware produced in the Dow Chemical Company's Glass Fabrication department. Founded in 1925, the department was responsible…
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Bill Schwartz fusing glass at Dow Chemical Company facility
- 1957-Oct-02
General view of glassblower Bill Schwartz applying internal pressure to fuse and close the end of a small vacuum-jacketed column in the Dow Chemical Company's Glass Fabrication department. Founded in 1925, the…
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2 items
Mortar
- Circa 1890
Brass cup-shaped receptacle used when crushing or grinding ingredients. Side of receptacle has two handles. Grooves along top and bottom circumference.
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2 items
Nalcometer Serial No. 1164
- Undated
Wooden box with metal instrument inside; instructions attached to top of box; instrument has a gauge and three turnable knobs; space along side has a power source and an electrode that is used for measuring; plaque on…
- Manufacturer National Aluminate Corporation
- Subject National Aluminate Corporation, Nalcometer
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2 items
Bausch & Lomb Duboscq Type Colorimeter
- Undated
Cast iron base attached to a sloping cast iron upright supporting the reader, prisms, sample cups, and a mechanism for raising and lowering the sample cups on a focusing rail; metal knobs on each side control the height…
- Manufacturer Bausch & Lomb Optical Company
- Subject Bausch & Lomb Optical Company, Colorimetry--Instruments, Colorimetry
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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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2 items
Glass tubes for Bendix Mass Spectrometer
- 1970s
Two views of assorted glass tubes presumably designed for use with the Bendix Time-of-Flight Mass Spectrometer system. The Time-of-Flight Mass Spectrometer (TOFMS) was the flagship analytical instrument of the Bendix…
- Creator Of Work Bendix Corporation
- Subject Scientific apparatus and instruments, Spectrometer industry, Mass spectrometry, Bendix Corporation, Glassware
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Interior of Engine Room at the Fixed Nitrogen Research Laboratory
- 1932-Jan-19
General view of the Engine Room at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. showing assorted machinery and apparatus.
The Fixed Nitrogen Research Laboratory…
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2 items
Interior of Engine Room at the Fixed Nitrogen Research Laboratory
- 1932-Jan-19
Two views of the interior of the Engine Room at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory, with both full and partial views of the blowing engines for the experimental blast furnace.
The…
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Travis P. Hignett with blowing engines for experimental blast furnace
- 1930-Mar-21
General view of Travis P. Hignett examining blowing engines for the experimental blast furnace at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen…