US Patent: 133,902
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| Pipe Wrench
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Patentee:
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| Thomas Stone (exact or similar names) - Carbondale, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Dec. 10, 1872 |
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Patent Pictures:
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Thomas Stone Pat. Dec. 10, 1872 |
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Stan Schulz
Pat. no. 133,902 patent model (Hagley Museum)
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Description: |
| The base of the movable jaw has a threaded shaft. An adjusting nut on the shaft bears against a ferule shoulder. The patent includes the jaw shapes and the combination of the parts. The construction of the handle and ferule are not described, so it is unclear how sturdy this would have been.
The patent model is in the collection at the Hagley Museum, Wilmington, DE. |
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