US Patent: 14,778
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| Rotary Engine
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Patentee:
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| John B. Root (exact or similar names) - Brooklyn, Kings County, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Apr. 29, 1856 |
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Patent Pictures:
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Joel Havens
Square-Piston Steam Engines
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Description: |
| Abstract:
Upon the outside of this cylinder is constructed another shell or case b, b, concentric with the first, and forming a chamber between the two, the ends being cast solid, and a wall or partition being made so as to divide this chamber into two equal passages extending the whole circumference of the engine. A portion of this outer case may be dispensed with when only two or three piston rollers are used.
Claim:
The contrivance of the steam ports, passages and stop bars arranged in connection with the piston rollers as above described so as to let the steam in upon the rubber at different and opposite sides of the cylinder at as many places as the number of rollers used shall require, thus acting upon the rollers from different and opposite points; thereby relieving the center shaft from side pressure and friction; and also increasing the power of the engine with the increase of the number of steam ports and piston rollers. |
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