US Patent: 117,679
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| Improvement in Wrenches
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Patentee:
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| George B. Phillips (exact or similar names) - Cleveland, OH |
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Patent Dates:
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| Granted: |
Aug. 01, 1871 |
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Patent Pictures:
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George B. Phillips patent August 1, 1871 |
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Stan Schulz
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Description: |
| The features include interchangeable jaw faces, a screw adjustment with an adjustment-locking cam, and wood side-plates dovetailed into the handle.
The WALTON screw wrench apparently used incidental details of this patent; the shape of the adjusting worm and rack teeth on the shank, along with jaws not perpendicular to the shank appear in the WALTON wrench marked with this patent date. Multiple sizes of WALTON wood and steel handle nut wrenches appear in an 1876 catalog issued from Chicago. |
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