US Patent: 629,904 - Gas Engine


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US Patent: 629,904

Gas Engine

Patentee:

Louis J. Hirt (exact or similar names) - Brookline, Norfolk County, MA

USPTO Classifications:

123/146, 123/188.4, 123/21, 123/61V, 123/63

Tool Categories:

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

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Jul. 20, 1897
Granted:	Aug. 01, 1899

Patent Pictures:

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Description:

Claim:

In a gas-engine, the combination of the following instrumentalities, viz: a working cylinder and piston, inlet and exhaust valves therefor, and an igniter, a main shaft operated by the piston, and a camshaft provided with two sets of cams, one set being arranged to operate the valves and igniter at every revolution of the main shaft, and the other set being arranged to operate them at every other revolution of the main shaft, the camshaft being bodily movable to bring either set of cams into operation at will, substantially as described.