Leiman Bros. - Rotary Positive Blowers and Vacuum Pumps

Leiman Bros. - K24-6M-2-24-F.B.

Leiman Bros. | Hand Operated Rolling Mill No. 2461

 Leiman Bros. Rolling Mill

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

Leiman Bros. | Pump Tags

Leiman Bros. | Patent Prints

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. 

The American Exporter. v.89, 1921, p.97

New Jeweler's Workbench

Metal Industry. v. 19 (1921). p.376

Jeweler's Work Bench.

No. 1,249,786. Patented Dec. 11, 1917.

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Leiman Vacuum Pump General Electric Avionic Aircraft Altimeter Testing | 1952

This vacuum pump was used in conjunction with a vacuum chamber to calibrate aircraft altimeters and rate-of-climb indicators.

The data plate reads:

LEIMAN BROTHERS INC., Newark, New Jersey

Manufactured January 1952

LEIMAN VACUUM PUMP

Specifications:

Capacity: 3.6 CFM

Vacuum: 10" Hg

Model No. 26-1/2

The pump is driven by a General Electric motor:

Model: 5KH43AB1205

1/4 HP continuous-duty motor

Speed rating: 1725 RPM

115 VAC, 5.0 Amp

60-cycle, single-phase