US Patent: 952,860
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| Chain Pipe-Wrench
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Patentee:
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| George Amborn (exact or similar names) - New York, NY |
| USPTO Classifications: |
| 81/70 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 02, 1908 |
| Granted: |
Mar. 22, 1910 |
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Patent Pictures:
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George Amborn patent March 22, 1910 |
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Stan Schulz
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Description: |
| The patent describes a chain wrench with double reversible jaw faces, and the hook provision for the free end of the chain formed wholly or in part on the handle. The patent includes multiple hook points so adjustments in increments less than the length of successive links can be made. The VULCAN BIJAW chain wrench introduced in early 1910 may incorporate features of this patent.
The patent is referenced in Amborn's subsequent patents (i.e. nos. 1,014,931, 1,146,119 and 1,146,120.
Arthur C. Fraser, patent attorney |
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