US Patent: 458,934
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| Pipe Wrench
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Patentee:
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| John S. Barden (exact or similar names) - East Providence, RI |
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Patent Dates:
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| Applied: |
Dec. 10, 1890 |
| Granted: |
Sep. 01, 1891 |
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Patent Pictures:
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John S. Barden patent Sept. 1, 1891 |
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Stan Schulz
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Description: |
| The jaws hinge at the end of the handle, and are held in alignment by a tongue. Known examples do not have the movement limit stop on the tongue, nor the square nut holding "flats" adjacent the pivot. Some wrenches based on this patent also dispensed with the alignment tongue.
The Frank Mossberg Company "FALCON" and "EAGLE" wrenches were based on this patent.
See also patent no. 1,799,622 for a 1930's slip-jointed version of a similar design. |
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