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US Patent: 640,395
Gas Engine Ignition Device
Patentee:
George W. Lewis (exact or similar names) - Philadelphia, PA

USPTO Classifications:
123/162, 123/184.1

Tool Categories:
propulsion and energy : internal combustion engines : gas and gasoline engines
propulsion and energy : internal combustion engines : ignition systems : magnetos

Assignees:
None

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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Report data errors or omissions to steward Joel Havens
Description:
Original application filed 17 Aug., 1894. Renewed 22 Sept., 1898. Divided and this application filed 21 Jun. 1899.

Claim:

In a gas-engine, the combination with a double-acting power-cylinder provided with electrodes exposed within the opposite ends of said cylinder, means operated by the piston for breaking the electric circuit through said electrodes, and means introduced into the circuit for holding the circuit open except when the piston approaches the end of its stroke, comprising a longitudinally-reciprocating metallic bar having projecting lugs at its opposite ends, a metallic spring connected with one of the circuit-wires and constantly engaging the bar, and a metallic part connected with the other circuit-wire and adapted to engage said projecting lugs at the opposite extremities of the movement of the bar.

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