US Patent: 79,642
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Wrench
Improvement in Pipe-Tongs
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Patentee:
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| James M. Evarts (exact or similar names) - New Haven, CT |
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Patent Dates:
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| Applied: |
Apr. 01, 1868 |
| Granted: |
Jul. 07, 1868 |
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Patent Pictures:
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James M. Evarts Pat. July 7, 1868 |
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Stan Schulz
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Description: |
| The adjustment is made by loosening the thumb screw on the pivot bolt, which passes through a tapered pivot block with toothed edges that mesh with teeth in a serrated slot in one of the jaws. According to Ken Cope's "American Wrench Makers 1830-1930," Evarts produced this tongs at New Haven.
Evarts distinguishes his patent from J.R. Brown's Aug. 2, 1859 pipe tongs patent (no. 24,927). |
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