Saturday, December 14, 2019
Thursday, December 12, 2019
Leiman Bros. - Jewelry Press
Leiman Bros. Jewelry Press
Incorporates 2 parts in one machine: part numbers 1B and 2A.
Test Reports of L-3 Reactor Components
Completion of Preliminary Bench Testing of the Leiman Pump, Catalyst Chamber, and Conductivity Cells, 1953
Monday, December 9, 2019
Sunday, December 8, 2019
Saturday, December 7, 2019
Leiman Bros. - Jeweler's Work Bench
To all whom it may concern:
Be it known that we, WILLIAM. H. LEIMAN and GEORGE W. LEIMAN, citizens of the United States, and residents of Newark, in the county of Essex and State of New Jersey, have invented a new and useful Improvement in Jewelers' Work-Benches, of which the following is a specification. The object of our invention is to provide an improved work bench for jewelers' use, in which a single bench can be converted into a double bench or in which the parts may be reversed to use either side of the bench. A still further object is to provide a bench of the above character in which all of the precious metal dust can be saved in a ready and convenient manner.
New Jeweler's Workbench
Metal Industry. v. 19 (1921). p.376
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Thursday, November 14, 2019
Vintage 1952 Leiman Vacuum Pump General Electric Avionic Aircraft Altimeter Test
The pump was used with a vacuum chamber to calibrate aircraft altimiters and aircraft rate of climb indicators
The data plate reads LEIMAN BROTHERS INC Newark NJ
Manufactured Jan 1952 LEIMAN VACUUM PUMP
Capacity 3.6 cfm 10” Hg Vac Model NO 26-1 1/2
Driven by General Electric Motor
Model 5KH43AB1205 1/4 HP Continuous Speed Rating
1725 RPM 115 VAC 5.0 Amp 60 Cy, Single Phase
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