US Patent: 516,281
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| Wrench
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Patentee:
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| Robert Singleton Rust (exact or similar names) - Warren County, VA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 31, 1893 |
| Granted: |
Mar. 13, 1894 |
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Patent Pictures:
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Robert Singleton Rust patent March 13, 1894 |
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Stan Schulz
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Description: |
| The fixed jaw and upper portion of the shank have gripping teeth. The adjustment is held by a gripping plate within the movable jaw that can be engaged or disengaged with rack teeth on the main shank by a steep pitched screw attached to a thumb-operated lever on the outside of the movable jaw. A spring tends to return the lever to the position where the adjustment is set. |
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