US Patent: 323,776
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| Automatic Self-Setting Wrench
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Patentee:
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| Benjamin F. Bennett (exact or similar names) - Lockport, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 01, 1884 |
| Granted: |
Aug. 04, 1885 |
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Patent Pictures:
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Benjamin F. Bennett patent August 4, 1885 |
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Stan Schulz
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Description: |
| This improvement on patent no. 287,998 adds a slot with rack teeth to the main shank, and gear teeth on the circumference of the wedging roller, to prevent slipping. |
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