US Patent: 640,675
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Explosive Engine
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Patentee:
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George W. Lewis (exact or similar names) - Chicago, Cook County, IL |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Sep. 22, 1898 |
Granted: |
Jan. 02, 1900 |
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Joel Havens
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Description: |
Original application filed 09 Apr., 1896. Renewed application filed 22 Sept., 1898.
Claim:
A power-cylinder provided with a main exhaust-port and with an auxiliary exhaust-port located in the side of the cylinder nearer the closed end of the cylinder than the main exhaust-port; said main and auxiliary exhaust-ports being closed by the piston when the latter is at the inward limit of its stroke and being uncovered by the piston in its outward movement, a valve for controlling said auxiliary exhaust-port, and operative connections with the crankshaft of the engine for actuating said valve. |
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