US Patent: 457,535
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| Chain Wrench
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Patentee:
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| Frederick B. Ide (exact or similar names) - Troy, NY |
| USPTO Classifications: |
| 81/68 |
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Patent Dates:
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| Applied: |
Apr. 01, 1891 |
| Granted: |
Aug. 11, 1891 |
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Patent Pictures:
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Frederick B. Ide patent August 11, 1891 |
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Stan Schulz
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Description: |
| The chain is composed of flat plates with grip points on the inner faces; the "head" has parallel jaws with the chain passing between them. The relatively small links distribute the "grip" around the circumference of the work piece.
Production information based on an advertisement in the January, 1893 "Machinists' Price Current." |
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