US Patent: 89,461
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Wrench
Improvement in Pawl-Wrenches and Braces
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Patentee:
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| George W. Bishop (exact or similar names) - Stamford, CT |
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Patent Dates:
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| Granted: |
Apr. 27, 1869 |
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Patent Pictures:
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George W. Bishop Pat. April 27, 1869 |
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Stan Schulz
"Vintage Machinery" entry for New England Manufacturing Works & Co.
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Description: |
| A cam-faced lever bears on the outside of a drill chuck or wrench socket. Neither the cam face or exterior of the chuck / socket have teeth. A stop pin limits "lost motion" of the lever. |
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