US Patent: 237,431
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| Clamp for Wood Working
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Patentee:
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| Alva M. Colt (exact or similar names) - Batavia, NY |
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Patent Dates:
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| Applied: |
Dec. 17, 1880 |
| Granted: |
Feb. 08, 1881 |
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Patent Pictures:
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Patent 237431 -edited from Patent Gazette |
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Stan Schulz
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Description: |
| Designed to eliminate slipping of the clamp jaws and utilizes a eccentric lever which operates a plunger to secure the work piece.
Known example marked PAT.FEB.8.81 and the size NO.#3. Some larger size examples are marked COLT BATAVIA NY on the cam lever. Colt was a partner in the BATAVIA CLAMP Co. |
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