US Patent: 335,892
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| Steam Engine Governor
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Patentees:
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| Joseph C. Cosford (exact or similar names) - Marquette, Marquette County, MI |
| John P. Kern (exact or similar names) - Marquette, Marquette County, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 15, 1885 |
| Granted: |
Feb. 09, 1886 |
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Joel Havens
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Description: |
| Abstract:
Our invention relates to that class of steam-engine attachments known as "governors", the object of the same being to provide a device of this character which shall be adapted to have absolute and instantaneous control over the valve which supplies the live steam to the steam-chest and cylinder, and at the same time have the governor perfectly automatic in its action and capable of being adjusted in such a manner that it will at all times admit the exact quantity of steam required, and no more, to maintain the action of the engine at a required or given uniform rate of speed under all the varying circumstances of boiler-pressure or change of burden or load against which the engine is working, thus maintaining and holding the engine at any required rate of speed.
Claim:
In an engine-governor, the combination of a single steam-cylinder attached to the underside of a bedplate and secured thereto by a tubular fitting coming down through a hole in the bedplate from two water-cylinders standing side by side and attached by the same fitting to the bedplate above, the steam-cylinder having a metal piston therein adapted to operate by direct boiler-pressure, the head of the piston having a conical-shape bearing adapted to engage the end of a connec-tion-rod attached to a crosshead and guide coming down from above the bed - plate through the tubular connection, the crosshead being free to move up and down in the guide between the water-cylinders, and being attached to a lever by means of a fork connection-rod, with two water-cylinders having pistons connected at their tops by a common crossbar and acting in unison, being adapted to receive water -pressure from a common feed-pipe from pumps connected with the engine, their common crossbar being connected by a connection-rod and a fork connection-rod to a lever, the steam-piston and the water-pistons being adapted to impart upward pressure upon said lever, with two tension-springs attached to the lever, and adapted to draw down the end of the lever and to overcome the upward pressure of the steam and water, the short arm of said lever being adapted to open or close the cutoff or throttle. |
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