US Patent: 235,083
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Wrench
Pipe or Cylinder Wrench
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Patentee:
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| Joseph P. Haigh (exact or similar names) - Hamilton, OH |
| USPTO Classifications: |
| 81/99 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 19, 1880 |
| Granted: |
Dec. 07, 1880 |
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Patent Pictures:
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Joseph P. Haigh patented December 7, 1880 |
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Stan Schulz
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Description: |
| The hook jaw is held in place in relation to the main bar by a spring. The hook jaw's base fits into a pivot seat. Further evolution of the idea is shown in patents 248,588 and 272,955. |
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