US Patent: 375,712
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Wrench
Improvements in Pipe and Nut Wrenches
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Patentee:
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| Charles E. Murray (exact or similar names) - Fairfield, VA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 17, 1887 |
| Granted: |
Dec. 27, 1887 |
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Patent Pictures:
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Charles E. Murray patent December 27, 1887 |
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Stan Schulz
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Description: |
| The mechanism is a hybrid combination of tongs and sliding jaw. A sliding block is the pivot point for a lever with the movable jaw, and also has a flat jaw surface. The sliding block has interior teeth which can be engaged with rack teeth on the shank, and fixed in place by a thumb screw. The whole sliding block and lever structure can be slid off the shank to allow the fixed jaw and shank to serve as a hammer. |
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