US Patent: 215,293
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| Improvement in balanced valves for steam-engines
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Patentee:
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| De Witt Clinton Prescott (exact or similar names) - Marinette, Marinette County, WI |
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Patent Dates:
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| Applied: |
May 13, 1878 |
| Granted: |
May 13, 1879 |
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Joel Havens
"Vintage Machinery" entry for Marinette Iron Works Co.
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Description: |
| This patent would form the basis for a clever modification to Prescott's famous direct-acting steam sawmill feed works, the modification providing more the more sensitive speed control needed for operation with band sawmills; see patent 360,972. |
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