US Patent: 764,619
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| Pipe Wrench
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Patentee:
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| James C. McQuilkin (exact or similar names) - Industry, PA |
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Patent Dates:
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| Applied: |
Sep. 25, 1903 |
| Granted: |
Jul. 12, 1904 |
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Patent Pictures:
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James C. McQuilkin patent July 12, 1904 |
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Stan Schulz
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Description: |
| The adjusting nut and movable jaw move along a threaded shaft that has pivoting attachment to the frame at the head holding the "fixed jaw." The head includes a spring which holds the movable jaw engaged with the work piece.
Known examples marked "Quick Release / Pat'd 7-12-04 / Beaver Falls, PA" have the entire handle and body formed of bent stamped sheet metal; there is a strengthening core in the handle beyond the adjustment limit of the movable jaw. |
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