US Patent: 446,324
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| Combined Nut and Pipe Wrench
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Patentee:
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| Daniel H. Carpenter (exact or similar names) - Orlando, FL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 07, 1890 |
| Granted: |
Feb. 10, 1891 |
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Patent Pictures:
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Daniel H. Carpenter Pat. February 10, 1891 |
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Stan Schulz
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Description: |
| The movable jaw has a pivoting member with teeth that engage a rack on the shank. A single example bearing this patent date matches patent no. 467,151's features and appearance.
The basic idea was revised and re-worked in Carpenter's 1892 patent (no. 467,151) and 1894 patent (no. 515,070), which incorporate a "notch" toward the tip of the hook jaw.
The idea of gripping flats adjacent to corners also is incorporated in Carpenter's Nov. 17, 1891 patent (no. 463,137). |
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