US Patent: 15,184
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Pipe Wrench
Wrench for Gas-Pipe, etc.
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Patentee:
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| Gustavus A. Jenks (exact or similar names) - Worcester, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jun. 24, 1856 |
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Patent Pictures:
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Gustavus A. Jenks patent June 24, 1856 |
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Stan Schulz
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Description: |
| The wrench has teeth on the end of the handle stock, and a spring loaded hook jaw mounted on the adjustable portion. The overall leverage of the wrench increases as the jaws are opened. The specifications cite this as an improvement on Bartholomew & Merrick's 1849 patent 6,002 (shown as Fig. 1 in the drawings), where the leverage decreases as the jaw opening increases.
This patent noted in patent no. 18,135. |
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