US Patent: 14,249
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| Wrench
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Patentee:
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| Elisha P. Newton (exact or similar names) - Green Island, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Feb. 12, 1856 |
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Patent Pictures:
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Elisha P. Newton patent February 12, 1856 |
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Stan Schulz
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Description: |
| Concave threads cut in the back of the wrench shank are engaed by a threaded half-cylinder in the movable jaw to hold an adjustment. The half-cylinder has a small thumb-piece to flip in in or out of engagement; when the threads are disengaged, the movable jaw slides freely. |
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