US Patent: 222,787
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| Adjustable Wrench
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Patentee:
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| Seth E. Hurlbut (exact or similar names) - Chicago, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 24, 1879 |
| Granted: |
Dec. 23, 1879 |
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Patent Pictures:
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Seth E. Hurlbut patent Dec. 23, 1879 |
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Stan Schulz
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Description: |
| An extended adjustable head includes a pair of double-lever fold-out subsidiary handles. Squeezing them tightens the jaw grip. There is a spring at the hinge point of the double levers to open them outward and relax the wrench's grip. |
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