US Patent: 300,127
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| Sliding Jaw Wrench
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Patentee:
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| William H. Ratcliff (exact or similar names) - Middleborough, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 24, 1884 |
| Granted: |
Jun. 10, 1884 |
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Patent Pictures:
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William H. Ratcliff patent June 10, 1884 |
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Stan Schulz
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Description: |
| The adjusting nut is inset in the movable jaw. The primary focus of the patent is the pivoting gripping roll which enable the wrench to grip pipe and other round objects. The pivot for the gripping roll frame is held by a coil spring.
Corresponding British patent GB-188412872 was registered Sept. 27, 1884. |
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