US Patent: 126,383
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| Improvement in Compound Steam Engines
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Patentee:
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| Charles E. Emery (exact or similar names) - New York, NY United States |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
May 07, 1872 |
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Patent Pictures:
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Joel Havens
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Description: |
| Abstract:
My invention consists, first, of the combination, with the lower cylinder of a vertical compound engine, of a smaller cylinder provided with braced legs which extends outside the cylinder-head of the lower cylinder, and are supported upon said cylinder, or, through rods, upon the engine -framing, such combination holding the upper cylinder rigidly and permitting the lower cylinder-head to be raised in the ordinary way a sufficient distance to permit the examination of the piston and the adjustment of its parts; second, long studs extended between the intermediate stuffing-boxes of a steepled compound engine, with nuts on same to secure both glands, in combination with divided and slotted glands, all parts being arranged so that they can be readily removed to permit the lifting of the cover of the lower cylinder; third, the arrangement of both the main and the cutoff valve-seats of the upper and lower cylinders at the same, or nearly the same, distance from the center of cylinders, to permit the valves to be operated by simple direct connections from one to the other; fourth, the method of working the steam expansively in a compound engine, by cutting off the steam in the larger cylinder at such point that the fall of pressure in the passages during the time that said cylinder is receiving steam there- from, is substantially restored during the time that the supply of steam to said cylinder is cut-off by the compression into the passages of the steam remaining in the small cylinder, and thereby transferring the expansion from one cylinder to the other with far less loss of effect than has ever before been accomplished when the cylinders were separated from each other; fifth, a pipe or reservoir to connect the two cylinders of a compound engine when loss of effect from the use of the same is prevented in the manner above expressed; sixth, an independently-adjustable cut-off for the larger cylinder of a compound engine, to enable adjustment to be made, as desired, to secure maximum economy or facility in starting; seventh, the arrangement, in the passages connecting the two cylinders of a compound engine, of devices for drying the steam, first by gravity and afterward by the direct application of heat to produce economy of steam; eighth, the arrangement of a check-valve in the passage between the two cylinders of a compound engine to assist in starting and backing the engine.
Claim:
The combination, with the lower cylinder of a vertical compound engine, of a smaller cylinder provided with braced legs which extend outside of the cylinder-head of the lower cylinder, and are supported upon said cylinder, or through rods upon the engine-framing, in such manner as to permit the raising of the lower cylinder-head. |
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