US Patent: 992,349
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| Balanced Slide-Valve
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Patentee:
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| William F. Gould (exact or similar names) - Des Moines, Polk County, IA |
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Patent Dates:
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| Applied: |
Feb. 12, 1906 |
| Granted: |
May 16, 1911 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Gould Balance Valve Co.
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Description: |
| Abstract:
The object of my invention is to provide a balanced slide valve of simple, durable and inexpensive construction in which the valve cover may be quickly and easily adjusted to limit its movement and in which the valve may be arranged to be balanced in such manner as to operate with a minimum of friction and wear or which may be easily and quickly adjusted to be pressed against the valve seat by steam pressure as required to produce a steam tight connection, in cases where the valve seat is worn or uneven.
Claim:
The combination of a slide valve, three packing strips projecting from one end of the slide valve, said strips forming the sides of a steam chamber, the central strip being detachable so that the said chamber will have a minimum width between the inner and central strips when the central strip is in position and a greater width between the outer and inner strips when the central strip is detached, a cover forming part of said steam chambers, said valve formed with a passageway communicating between the inner and middle strips and having its lower end inclined toward the adjacent end of the valve to communicate with a steam inlet port of a cylinder when the valve is in position with the chamber between the middle and inner strips out of line with said inlet port, of a cylinder. |
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