US Patent: 511,414
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| Nut Clamp
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Patentee:
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| John B. Dolan (exact or similar names) - Central Falls, RI |
| USPTO Classifications: |
| 81/76 |
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Patent Dates:
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| Applied: |
Oct. 26, 1893 |
| Granted: |
Dec. 26, 1893 |
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Patent Pictures:
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John B. Dolan patent December 26, 1893 |
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Stan Schulz
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Description: |
| The clamp binds an axle nut to the inner edge of a wheel hub. It consists of pairs of jaws connected by right- and left-hand threaded screws. The jaw pairs are mounted on a square shank.
Ken Cope's "American Wrench Makers 1830-1930" cites an 1894 Iron Age listing that shows the wrench produced by the Tenney Mfg. Co. of Pawtucket, RI. |
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