US Patent: 311,892
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| Wrench
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Patentee:
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| John Gibbons (exact or similar names) - West Troy, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 29, 1884 |
| Granted: |
Feb. 10, 1885 |
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Patent Pictures:
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John Gibbons patent February 10, 1885 |
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Stan Schulz
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Description: |
| The wrench is comprised of four main pieces. Two pieces are the two jaws and the exterior halves of the handle. The screw knob on the end of the handle moves a central slide with pins that fit in pairs of diagonal slots in the handle halves. Caps on the pins hold the parts together. |
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