US Patent: 651,780 - Internal-Combustion Motor


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US Patent: 651,780

Internal-Combustion Motor

Patentees:

Henry T. Dawson (exact or similar names) - Canterbury, Kent County, England

Henry A. Dawson (exact or similar names) - Canterbury, Kent County, England

USPTO Classifications:

123/182.1, 123/195R, 123/41R, 123/71R, 123/71V, 123/76, 60/626

Tool Categories:

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

propulsion and energy : internal combustion engines : oil engines

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Jul. 10, 1899
Granted:	Jun. 12, 1900

Patent Pictures:

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Description:

Claim:

In an internal-combustion motor, the combination of, a combustion-cylinder; an air-cylinder forming an enlarged continuation of the combustion-cylinder; a combustion-piston; an annular air-piston in one with the combustion-piston; a crankshaft; a piston-rod connecting the piston and crankshaft; an admission-valve; an exhaust-valve; an ignition device; a valve-box; a port opening from the valve-box into the combustion-cylinder; a port opening from the air-cylinder into the valve box; an air-reservoir communicating with the said valve-box; a valve fitted to said reservoir normally adapted to admit air into said reservoir and prevent its return therefrom; a non-return valve located in the said valve-box and adapted to open and close the port opening from the air-cylinder into the valve-box and means for moving the said nonreturn valve by hand