US Patent: 1,659,081
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| Wrench
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Patentees:
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| Francis J. Carnelli (exact or similar names) - Newark, NJ |
| Robert B. Morris (exact or similar names) - Newark, NJ |
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Patent Dates:
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| Applied: |
Dec. 17, 1923 |
| Granted: |
Feb. 14, 1928 |
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Patent Pictures:
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Francis J. Carnelli and Robert B. Morris patent Feb. 14, 1928 |
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Stan Schulz
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Description: |
| Chain wrench with provision for adjusting the grip of the chain, and which would grip a range of sizes. The handle has a cam end which rocks within a socket in the jaw section.
The specifications note a pending patent application filed Feb. 6, 1923, and call this design an improvement. The Cantilever Chain Wrench was advertised in oil and gas trade journals in the early and mid-1920s. Ad claims included ability to "reverse" direction of action without re-setting the wrench. Produced in sizes up to 12 inch capacity.
The initial application was filed Dec. 17, 1923, and was renewed July 6, 1927.
Corresponding Canadian patent CA-254,158 was granted Sept. 29, 1925.
Carnelli had later chain wrench patents which have some resemblance to aspects of this design. |
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