US Patent: 1,105,782
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| Pipe Wrench
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Patentee:
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| Thomas Hinds (exact or similar names) - Winnipeg, Manitoba Canada |
| USPTO Classifications: |
| 81/94 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 09, 1913 |
| Granted: |
Aug. 04, 1914 |
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Patent Pictures:
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Thomas Hinds patent August 4, 1914 |
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Stan Schulz
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Description: |
| Rotating "inner jaw" with curves matching standard pipe sizes; the placement of the curved faces is such that the toothed gripping surface on the fixed jaw will contact the pipe surface for all of those sizes, and the jaw will not "lock" on a pipe.
A known example matching this design bears markings indicative of a corresponding British patent (number 102960 of 1916). Corresponding Canadian patent CA-150778 was granted Sept. 30, 1913. |
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