US Patent: 241,674
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| Pipe Wrench
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Patentee:
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| Wladyslaw T. Kosinski (exact or similar names) - Brooklyn, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 20, 1880 |
| Granted: |
May 17, 1881 |
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Patent Pictures:
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W. T. Kosinski patent May 17, 1881 |
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Stan Schulz
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Description: |
| The chain lengths are sized so that the "wrap" of the chain corresponds to the circumference of the pipe. There are a couple of holes for the retaining pin to allow for slight variations in pipe circumference. There is an alternative bearing surface included in the overall patent. |
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