US Patent: 657,760 - Electric Igniter for Explosive-Engines


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US Patent: 657,760

Electric Igniter for Explosive-Engines

Patentee:

Isaac H. Davis (exact or similar names) - Boston, Suffolk County, MA

USPTO Classifications:

123/150, 123/334, 123/335

Tool Categories:

propulsion and energy : internal combustion engines : ignition systems

Assignees:

Isaac H. Davis - Boston, Suffolk County, MA

E. D. Mellen - Cambridge, Middlesex County, MA

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Nov. 18, 1899
Granted:	Sep. 11, 1900

Patent Pictures:

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Description:

Claim:

In an electric igniter for explosive-engines, the combination of an engine-revolved contact and a cooperating stationary contact, means to effect a relative concentric adjustment of said contacts to vary the occurrence of ignition with respect to the power-stroke of the engine, and means operated by the adjusting movement for throwing the contacts into and out of coacting relation.