US Patent: 310,818
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| Pipe Wrench
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Patentee:
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| James F. Guthrie (exact or similar names) - Somerville, MA |
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Patent Dates:
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| Applied: |
Mar. 28, 1884 |
| Granted: |
Jan. 13, 1885 |
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Patent Pictures:
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James F. Guthrie patent January 13, 1885 |
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Stan Schulz
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Description: |
| The primary focus of the patent is the sliding wedge jaw face on the fixed jaw.
Distinctive feature of the produced wrench is the frame for the movable jaw is integral with the handle, and the adjusting nut has a curved face to facilitate rocking movement of the hook jaw.
Marketed as Guthrie's Patent.
Corresponding Canadian patent CA-21,185 was granted Febr. 28, 1885 and British patent GB-188506601 was registered May 30, 1885. |
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