US Patent: 640,393 - Gas Engine


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US Patent: 640,393

Gas Engine

Patentee:

George W. Lewis (exact or similar names) - Philadelphia, PA

USPTO Classifications:

123/184.1, 123/363, 123/65R, 123/74AC

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:	Jun. 21, 1899
Granted:	Jan. 02, 1900

Patent Pictures:

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Description:

Application renewed 22 Sept., 1898. Divided and this application filed 21 Jun., 1899

Claim:

In a single-acting engine, a cylinder and piston, said cylinder having a medial lateral inlet-port which is uncovered by the piston when near the end of its power-stroke, and also having a medial exhaust-port situated at or about ninety degrees of the circumference of the cylinder from the inlet-port, said exhaust-port being also uncovered by the piston on its approach to the end of its power-stroke, but before the uncovering of the inlet-port.