US Patent: 114,505
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| Improvement in Wrenches
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Patentee:
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| Aury Gates Coes (exact or similar names) - Worcester, MA |
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Patent Dates:
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| Granted: |
May 02, 1871 |
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Patent Pictures:
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A. G. Coes Pat. May 2, 1871 |
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Stan Schulz
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Description: |
| The patent is for the enlarged counterbore of the threaded hole in the adjustable jaw, and the extra metal in the jaw surrounding the hole. This feature is to prevent the adjusting knurl from "sticking" when the wrench is opened to its widest adjustment. |
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