US Patent: 66,975 - Compound Steam Engine


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US Patent: 66,975

Compound Steam Engine

Patentee:

John L. Lay (exact or similar names) - Buffalo, Erie County, NY

USPTO Classifications:

91/156, 91/164

Tool Categories:

propulsion and energy : steam engines : compound steam engines

Assignees:

John L. Lay - Buffalo, Erie County, NY

H. O. Perry - Buffalo, Erie County, NY

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Granted:	Jul. 23, 1867

Patent Pictures:

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Description:

Abstract:

The design of my invention is the production of a compound engine, consisting of a high and a low-pressure cylinder, of a compact form, suitable for vessels propelled by means of a screw. The invention consists in the special arrangement of the cylinders concentrically, one within the other, with their pistons connected by three rods attached to a common crosshead below the cylinders; and also in the construction and arrangement of a single oscillating valve for operating both cylinders.

Claim:

I claim the arrangement of the low-pressure cylinder B concentrically within the low-pressure cylinder A, when. both are closed by the same heads C D, and the pistons actuate rods attached to the same cross-head below the cylinders.