US Patent: 330,369
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| Wrench
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Patentee:
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| George Asa Barnes (exact or similar names) - New Haven, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 23, 1885 |
| Granted: |
Nov. 17, 1885 |
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Patent Pictures:
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George Asa Barnes patent November 17, 1885 |
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Stan Schulz
"Vintage Machinery" entry for Barnes Tool Co
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Description: |
| The base of the adjusting screw extends into the ferule, where a supplemental cam lever can apply additional gripping pressure. A secondary nut at the end of the handle can be tightened to hold the cam lever in the closed position.
If this design was produced, it likely would have been made by Barnes Tool Co., New Haven, CT. |
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