US Patent: 7,362
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| Revolving-Jaw Wrench
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Patentee:
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| Nathaniel Colver (exact or similar names) - Boston, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
May 14, 1850 |
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Patent Pictures:
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Nathaniel Colver patent May 14, 1850 |
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Stan Schulz
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Description: |
| The adjustable jaw has faces parallel to the end jaws, and with the faces differing in distance from the end jaws by 1/2 the thread pitch. In operation the adjustable jaw is turned, and the adjustment held by an internal spring loaded key which fits in a slot cut in the side of the threaded shank, and engages a notch in the female threads of the adjustable jaw. |
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