US Patent: 377,795
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| Chain Wrench
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Patentee:
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| James H. Williams (exact or similar names) - Brooklyn, NY |
| USPTO Classifications: |
| 81/70 |
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Patent Dates:
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| Applied: |
May 23, 1887 |
| Granted: |
Feb. 14, 1888 |
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Patent Pictures:
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James H. Williams patent February 14, 1888 |
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Stan Schulz
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Description: |
| Improvement to the "Brock" chain wrench (patent nos. 254,862 and 298,442). Reversible jaws to gain longer life from the parts, and stronger "first link" in the chain.
Brock chain wrenches were a staple of the J.H. Williams chain wrench line early in the company's history, and "ancestors" of the VULCAN chain wrench. Williams' subsequent chain wrench production incorporated aspects of multiple patents which makes it difficult in many cases to connect specific patents to tools as produced.
Phillips, Phelps & Hooey - patent attorneys
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