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US Patent: 824,396
Explosive Engine
Patentee:
Ellis J. Woolf (exact or similar names) - Minneapolis, Hennepin County, MN

USPTO Classifications:
123/196CP, 123/41.72, 123/51B, 123/53.6, 123/71R, 123/73A, 74/596

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:
Jason F. Williamson
F. D. Merchant
H. D. Kilgore
E. W. Jeppesen

Patent Dates:
Applied: May 05, 1904
Granted: Jun. 26, 1906

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 important improvements therein with a view of securing increased efficiency.

Claim:

The volume capacity of the lubricating chamber is so great that the differential displacement produced by the larger piston results only in a very low compression therein under dimensions shown, and, moreover, any power consumed in effecting the compression within the lubricating-chamber under the compression-stroke of the differential within said lubricating-chamber will be given back to the said piston during its return or expansion stroke.

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