US Patent: 501,985
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| Pipe or Nut Wrench
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Patentee:
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| Peter Armantrout (exact or similar names) - Hoover, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 02, 1892 |
| Granted: |
Jul. 25, 1893 |
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Patent Pictures:
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Peter Armantrout patent July 25, 1893 |
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Stan Schulz
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Description: |
| A series of holes in the shank portion of the hook jaw together with a bolt and nut provide size adjustment for this self-adjusting pipe wrench. The broad "fixed" jaw has a square stop which would also facilitate the wrench's use with square nuts. |
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