US Patent: 243,942
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| Nut Wrench
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Patentee:
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| John A. Miller (exact or similar names) - St. Charles, MO |
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Patent Dates:
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| Applied: |
Apr. 25, 1881 |
| Granted: |
Jul. 05, 1881 |
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Patent Pictures:
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John A. Miller Pat. July 5, 1881 |
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Stan Schulz
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Description: |
| The wrench is an improvement on Miller's April 12, 1881 patent (no. 239,972). In this wrench, the head holding the socket can be turned by a crank during the "low drag" portion of tightening the nut, and the final tightening accomplished by a ratcheting handle. The socket has a nut-holding wedge.
A known example from a Kansas City area collection marked with dates for this patent, previous patent no. 239,972 and subsequent patent no. 253,549 does not include any of the features specific to this patent. |
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