US Patent: 166,814
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| Wrench
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Patentee:
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| Pierre Samuel (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 16, 1875 |
| Granted: |
Aug. 17, 1875 |
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Patent Pictures:
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Pierre Samuel Pat. August 17, 1875 |
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Stan Schulz
Improved Wrench in Oct. 2 1875 SCIENTIFIC AMERICAN
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Description: |
| The screw adjustment is backed up by the cam action of the handle. The patent focuses on the adjustment, and describes the wrench in use either as a pipe or nut wrench. The spring acts to back the movable jaw away from the work piece.
P.A. Samuel's British patent GB-196500457 registered Feb. 17, 1865 appears to be an earlier version of the screw-adjusting portion of the overall design. |
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