US Patent: 263,794
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| Wrench
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Patentee:
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| Dolphus S. Maynard (exact or similar names) - Auburn, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 17, 1882 |
| Granted: |
Sep. 05, 1882 |
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Patent Pictures:
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Dolphus S. Maynard patent September 5, 1882 |
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Stan Schulz
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Description: |
| A threaded three-lobed adjusting cam on the base of the movable jaw meshes with a rack on the back side of the main bar. The bar is oval or diamond shaped so the sliding jaw wedges tightly against the shank, and the three lobes on the adjuster are to compensate for wear. |
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