US Patent: 248,588
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Wrench
Pipe-Wrench or Cylinder-Wrench
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Patentee:
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| Joseph P. Haigh (exact or similar names) - Pittsburgh, PA |
| USPTO Classifications: |
| 81/99 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 05, 1881 |
| Granted: |
Oct. 25, 1881 |
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Patent Pictures:
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Joseph P. Haigh patent October 25, 1881 |
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Stan Schulz
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Description: |
| The swinging hook jaw and the leaf spring that holds it in engagement are housed in a center slot in the handle. The hook jaw has a round-bottom notch, that pivots on a shaft.
Intermediate stage between patent nos. 235,083 and 272,955. |
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