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USPTO's for finding information on machinery patents.
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395,039
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Dec. 25, 1888
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Engine
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William F. Dake |
Grand Haven, Ottawa County, MI |
Abstract:
The invention relates to the class of double reciprocating square piston-engines such as shown and described in Letters Patent No. 363,368, granted to me May 24, 1887. The object of the present invention is to provide a new and improved engine which is simple and durable in construction and very effective in operation.
Claim:
In an engine, the combination, with a casing and a piston reciprocating therein, of a second piston arranged within and having a reciprocating motion at right angles to the line of movement of the first-named piston, the outer face of the said second valve forming a valve for operating both pistons. |