US Patent: 217,407
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| Pipe-Wrench
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| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 30, 1878 |
| Granted: |
Jul. 08, 1879 |
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Patent Pictures:
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Henry Rhyn patent July 8, 1879 |
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Stan Schulz
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Description: |
| The swinging hook jaw and its positioning spring are on a screw-adjusted base. The screw bears agains a lug on the handle.
Rhyn obtained another patent (no. 218,195 and RE8,961) for a hook-jaw pipe wrench with an adjustable "lower" jaw. |
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