US Patent: 620,652
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| Combined Nut and Pipe Wrench
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Patentees:
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| Leslie K. Hollyman (exact or similar names) - Kansas City, MO |
| Benoni Swearingen (exact or similar names) - Kansas City, MO |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 28, 1898 |
| Granted: |
Mar. 07, 1899 |
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Patent Pictures:
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Leslie K. Hollyman and Benoni Swearingen patent March 7, 1899 |
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Stan Schulz
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Description: |
| Turning the handle adjusts the jaw openings. The major claim of the patent is that the ball bearings in the adjustment make it very difficult to "stick" the wrench; i.e. adjust it so tight that a hammer is needed to loosen its grip. A set screw "locks" the adjustment.
Corresponding Canadian patent no. CA-62,882 was granted March 13, 1899. |
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