US Patent: 221,633
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| Pipe-Wrench
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Patentee:
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| John H. Vinton (exact or similar names) - Bridgeport, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 23, 1878 |
| Granted: |
Nov. 11, 1879 |
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Patent Pictures:
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John H. Vinton patent November 11, 1879 |
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Stan Schulz
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Description: |
| The handle screws in and out to adjust the "fixed" jaw. That jaw is held tight against the handle by an internal coil spring. The hook jaw has a stop to prevent its swinging back against the handle. |
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