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Start Over You searched for: Date 1920 to 1929 Remove constraint Date: <span class="from" data-blrl-begin="1920">1920</span> to <span class="to" data-blrl-end="1929">1929</span>-
Compressors used at catalyst testing plant
- Circa 1928
General view of the compressors used at the Fixed Nitrogen Research Laboratory's catalyst testing plant.
The Fixed Nitrogen Research Laboratory (F.N.R.L.) was established at American University in 1919 under the…
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Auxiliary gasoline engine at catalyst testing plant
- Circa 1928
General view of the auxiliary gasoline engine used at the Fixed Nitrogen Research Laboratory's catalyst testing plant. The insignia of the General Motors Company is visible at the base of the engine.
The Fixed Nitrogen…
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Employees at work in Fixed Nitrogen Research Laboratory electrical shop
- Circa 1928
General view of the electrical shop at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory showing assorted machinery and apparatus. The man visible on the left-hand side of the photograph is…
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F.F. Robey at work in carpenter shop at Fixed Nitrogen Research Laboratory
- Circa 1928
General view of F.F. Robey at work in the carpenter shop at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory showing assorted machinery and apparatus.
The Fixed Nitrogen Research Laboratory…
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Repair shop at the Fixed Nitrogen Research Laboratory
- Circa 1928
General view of the repair shop at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory showing assorted machinery and apparatus.
The Fixed Nitrogen Research Laboratory (F.N.R.L.) was established at…
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L. Pinck using liquid air condenser for low-temperature distillations
- 1928-Aug-21
General view of Mr. L. Pinck demonstrating use of a liquid air condenser employed for low-temperature distillations at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
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Rotary filter for extracting cyanamide from calcium cyanamide
- Circa 1926
Rotary filter used at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory to extract cyanamide from calcium cyanamide.
The Fixed Nitrogen Research Laboratory (F.N.R.L.) was established at American…
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Ammonia-carbon dioxide pump and Urea autoclave
- 1927-Jul-26
General view of the ammonia-carbon dioxide pump and Urea autoclave used at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen Research Laboratory…
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Mojonnier Apparatus
- 1922
Moisture and milk testers for determining fat and total solids in milk and dairy products according to the Mojonnier process.
- Creator Of Work Williams, Brown & Earle
- Subject Physical instruments, Milk--Testing, Laboratories--Equipment and supplies, Milkfat--Testing
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Specifications for Nitrometer Reaction Bulb and Compensating Tube
- 1922
From Manufacturing Chemists' Association Catalog for Standard Laboratory Apparatus, Part 1.
Nitrometers, reaction bulb and compensating tube.
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Specifications for Nitrometer, General Assembly of Parts
- 1922
From Manufacturing Chemists' Association Catalog for Standard Laboratory Apparatus, Part 1.
Nitrometer, general assembly of parts.
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Specifications for Nitrometer Hooks
- 1922
From Manufacturing Chemists' Association Catalog for Standard Laboratory Apparatus, Part 1.
Nitrometer Hooks.
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Specifications for Nitrometer Attachments
- 1922
From Manufacturing Chemists' Association Catalog for Standard Laboratory Apparatus, Part 1.
Nitrometer attachments: reservoir bulb, manifold, and support used on universal tube.
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Specifications for Nitrometers, Nitrocotton and Universal
- 1922
From Manufacturing Chemists' Association Catalog for Standard Laboratory Apparatus, Part 1.
DuPont Nitrometer. Used to measure and collect nitrogen from a chemical reaction.
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Specifications for Mohr Pipettes
- 1922
From Manufacturing Chemists' Association Catalog for Standard Laboratory Apparatus, Part 1.
Mohr Pipettes. Invented by Karl Friedrich Mohr.
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Specifications for Burette No. 4
- 1922
From Manufacturing Chemists' Association Catalog for Standard Laboratory Apparatus, Part 1.
Burette No. 4. Burette with bulb and 3 way stopcock, 0-75 ml bulb capacity, 75-100 graduated in 1/10th ml.
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Specifications for Burette No. 1
- 1922
From Manufacturing Chemists' Association Catalog for Standard Laboratory Apparatus, Part 1.
Burette No. 1. Burette with funnel top, 50 ml in 1/10 ml.