US Patent: 638,475
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| Wrench Atttachment
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Patentee:
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| George W. Rouse (exact or similar names) - Lowell, MI |
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Patent Dates:
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| Applied: |
Aug. 08, 1899 |
| Granted: |
Dec. 05, 1899 |
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Patent Pictures:
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George W. Rouse Patent December 5, 1899 |
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Stan Schulz
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Description: |
| The pair of toothed jaws and their connecting thumb screws convert a "monkey wrench" into a pipe wrench.
Marketed as the "Yankee Pipe Jaws" by a succession of manufacturers, including WILCOX in 1901, followed by RICHARDS-WILCOX after those companies merged, and BOW MFG. in 1914.
Some known examples are marked with the patent date.
Note also D.R.G.M. DG-144155 which appears to be a corresponding German patent. |
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