US Patent: 122,139
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| Improvement in Wrenches
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Patentee:
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| George C. Taft (exact or similar names) - Worcester, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Dec. 26, 1871 |
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Patent Pictures:
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George C. Taft Pat. Dec. 25, 1871 |
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Stan Schulz
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Description: |
| The patent is for a double-threaded thimble connecting the ferule and the wrench-bar. The interior and exterior threads are cut at different pitches to wedge the ferule firmly in position. The "jog" shown on the back side of the main bar is not mentioned in the specifications. |
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