US Patent: 640,672 - Gas Engine


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US Patent: 640,672

Gas Engine

Patentee:

George W. Lewis (exact or similar names) - Chicago, Cook County, IL

USPTO Classifications:

123/162, 123/179.7, 123/184.1, 123/188.2, 123/61R, 123/65R, 123/65V

Tool Categories:

propulsion and energy : internal combustion engines : gas and gasoline engines

Assignees:

J. Thompson & Sons Mfg. Co. - Beloit, Rock County, WI

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Sep. 22, 1898
Granted:	Jan. 02, 1900

Patent Pictures:

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Description:

Original application filed 17 Aug., 1894. Renewed application filed 22 Sept., 1898.

Claim:

In a gas-engine the combination, with a cylinder closed at both ends and provided with supply and exhaust ports each situated between said closed ends, of a power-piston arranged to reciprocate past said ports in both 3125 directions, said piston being made longer on its side adjacent to the supply-port than on its side adjacent to the exhaust-port, whereby the latter is first uncovered in each stroke.