US Patent: 646,399 - Explosive Engine


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US Patent: 646,399

Explosive Engine

Patentee:

James F. Duryea (exact or similar names) - Springfield, Hampden County, MA

USPTO Classifications:

123/153, 123/346, 123/55.4, 477/165

Tool Categories:

propulsion and energy : internal combustion engines : internal combustion engine valves

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Sep. 19, 1898
Granted:	Mar. 27, 1900

Patent Pictures:

USPTO (New site tip)
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Description:

Claim:

The combination with the inlet-valves of an explosive-engine, valve-stems thereon, and an adjustable nut on said valve-stems, of a wedge having a sliding movement transverse to said valve-stems whereby the operative movements of said valves are arrested by the contact of said nut with said wedge; a plunger-rod and suitable support therefor, a spring for moving said rod in one direction, a pawl-and-ratchet device for holding said rod in a fixed position relative to its support, and a connection extending from one end of said plunger-rod to one end of said wedge.