US Patent: 56,147
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| Improvement in Wrenches
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Patentee:
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| A. M. Olds (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 02, 1865 |
| Granted: |
Jul. 03, 1866 |
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Patent Pictures:
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A. M. Olds Pat. July 3, 1866 |
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Stan Schulz
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Description: |
| A spring tensioned tooth inside the movable jaw jams against the back of a groove in the shank. A small exterior handle connected to the tooth enables the grip to be released to allow the movable jaw to slide for adjusting. All the parts except the spring are to be malleable cast iron. |
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