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US Patent: 683,886
Explosive Engine
Patentee:
Ellis J. Woolf (exact or similar names) - Minneapolis, Hennepin County, MN

USPTO Classifications:
123/156, 123/188.2, 123/195R, 123/196CP, 123/346, 123/363, 123/378, 123/41.47, 123/41.71, 123/41.72, 123/41R, 123/65VB, 123/69V, 123/71V, 123/73AA, 123/73AB, 123/73CA, 184/18, 184/6.5

Tool Categories:
propulsion and energy : internal combustion engines

Assignees:
Woolf Valve Gear Co. - Minneapolis, Hennepin County, MN

Manufacturer:
Not known to have been produced

Witnesses:
Mabel M. McGrory
F. D. Merchant
Harry Gilgore
C. H. Turner

Patent Dates:
Applied: Jan. 29, 1901
Granted: Oct. 01, 1901

Patent Pictures: [ 1 | 2 | 3 | 4 | 5 ]
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"Vintage Machinery" entry for Woolf Valve Gear Co.
Description:
Abstract:

My invention relates to explosive-engines, and has for its object to provide certain radical improvements therein with a view of securing increased efficiency.

Claim:

In an explosive-engine, the combination with a compression-chamber having an inlet-valve for the explosive mixture, a charging-port leading from the compression-chamber to the explosion - chamber and a charging-valve controlling said charging-port, of a differential cylinder having its enlarged end in communication with said compression-chamber and a corresponding differential piston working in said differential cylinder, which valves operate under the action of the crankshaft end of the larger piston.

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