US Patent: 1,275,334
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| Pipe Wrench
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Patentee:
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| Ben Watts (exact or similar names) - Jarbridge, NV |
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Patent Dates:
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| Applied: |
Apr. 24, 1918 |
| Granted: |
Aug. 13, 1918 |
| Reissue Information: |
| Reissued as RE14,791 (Jan. 13, 1920) |
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Patent Pictures:
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Ben Watts patent Aug. 13, 1918 |
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Stan Schulz
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Description: |
| The faces of "dogs" in a swinging frame bind against opposite faces of the main shank to hold the adjustment; a spring holds that structure in the gripping position, and allows the relative motion necessary to prevent the jaws from "sticking" to pipe.
The claims were re-worked in reissue patent RE14,791.
A 12 inch long quick-adjust pipe wrench manufactured by WALWORTH appears to correspond to this patent, although no documentary evidence has been found to confirm the connection. |
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