US Patent: 483,419
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| Chain Wrench
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Patentee:
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| William H. Brock (exact or similar names) - Brooklyn, NY |
| USPTO Classifications: |
| 81/68 |
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Patent Dates:
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| Applied: |
Mar. 19, 1892 |
| Granted: |
Sep. 27, 1892 |
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Patent Pictures:
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William H. Brock patent September 27, 1892 |
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Stan Schulz
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Description: |
| The patent covers the shape of the gripping shoe, and the spacing and location of the adjustment claws. These features are noted in advertising Brock's NEW STANDARD chain wrench. The chain shown in the drawings conforms to Brock's Sept. 24, 1889 patent (no. 411,575), and is separate from this patent.
This style of BROCK chain wrench is shown together with with the FLANGE WRENCH based on patent no. 542,922 in a 1909 ad in PLUMBER'S TRADE JOURNAL. |
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