US Patent: 470,042
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| Pipe Wrench
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Patentee:
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| Francis Lewis George (exact or similar names) - Lincoln, NE |
| USPTO Classifications: |
| 81/99 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 29, 1891 |
| Granted: |
Mar. 01, 1892 |
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Patent Pictures:
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Francis Lewis George Patent March 1, 1892 |
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Stan Schulz
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Description: |
| A spring connects the back side of the handle and swinging hook jaw of this self-adjusting pipe wrench. The spring inserts in a cavity in the back of the hook jaw. The cavity is covered by a cap plate to exclude dirt.
The patent is noted in Arthur Upton's June 20, 1893 patent (no. 499,765). |
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