US Patent: 521,278
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| Engine
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Patentee:
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| Ellis J. Woolf (exact or similar names) - Minneapolis, Hennepin County, MN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 24, 1893 |
| Granted: |
Jun. 12, 1894 |
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Patent Pictures:
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Joel Havens
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Description: |
| Abstract:
My invention relates to engines and has for its object to improve certain features of the construction, with a view of obtaining increased efficiency of fluid distribution. A number of the important features of the invention are directed to the valve mechanism; which improvements were especially designed for use in connection with compound engines. Other features of the invention are directed to a simple construction, for converting compounds into simple engines. My improved engines embody certain of the inventions described and claimed in my former patent, No. 475,427, of date May 24, 1892, entitled "single cylinder compound engine;" but involve additional new features of radical importance, as will hereinafter appear.
Claim:
In a compound engine, the combination with a valve-seat having a high and a low pressure port, of a valve having an internal fluid passage, which, in one position of the valve, is uncovered and serves to convey the fluid to the high pressure port, and which, in the opposite position of the valve, serves to convey, in a reverse direction the fluid from the high to the low pressure port, and means for final Exhaust operative to permit the exhaust from the low during the admission to the high pressure port. |
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