US Patent: 141,710
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Rotary Steam Engine
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Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Jun. 20, 1873 |
Granted: |
Aug. 12, 1873 |
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Joel Havens
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Description: |
A represents a cylindrical casing of any desired dimensions, and supported upon any suitable stand or frame. B is the steam-pipe to be connected with the boiler, and from which the steam passes through a passage, a, into the interior of the cylinder. The steam passage a opens into the upper end of a semicircular groove or recess, b, formed in that head of the cylinder. 0 represents a wheel placed eccentrically within the casing A upon a horizontal shaft, d, which passes through the heads of the cylinder above the centers of the same. In the wheel C are made two slots, extending from opposite sides inward beyond the center, and one on each side of the same. In these slots are inserted the valves D D, which are constructed as shown in Fig. 4, each having a recess, on one side, with a passage, e, leading from the same out through the edge, h represents the exhaust-port. The circumference of the wheel C is made convex, as made in Fig. 2, and the inside of the casing is made concave to correspond. The steam entering through the inlet-pipe B passes through the passage a into the groove &, and from there through the passage e into the recess / on the valve, forcing the same outward. As the wheel is revolving the valve is forced out by the live steam, which, after the valve has been moved a certain distance, passes from the recess into the casing, and then acts on the valve to turn the wheel; at the same time the steam behind the inner end of the valve keeps the same out against the casing. When the -wheel has made a little less than one-half of a revolution the valve is forced inward by the space between the wheel and the casing contracting, and the valve-slot passes from beyond the groove before the other valve reaches the upper end of said groove. Thus the steam is cut off from one valve before the other valve commences to take on steam, and the wheel is kept on revolving by the expansion of the steam, and as soon as the valve passes the exhaust-port h the steam is exhausted through the same. |
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