US Patent: 569,037
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Combined Nut and Pipe Wrench
Improved Combination Pipe and Monkey Wrench
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Patentee:
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| Thomas Dixon (exact or similar names) - McKeesport, PA |
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Patent Dates:
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| Applied: |
Mar. 21, 1896 |
| Granted: |
Oct. 06, 1896 |
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Patent Pictures:
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Thomas Dixon patent October 6, 1896 |
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Stan Schulz
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Description: |
| The jaw adjustment is held by a combination of clamping wedges which force teeth in the movable jaw against rack teeth on the main shank. The pipe gripping feature is a roughened cylinder which would wedge against a jaw face, and which can be swung into the jaw opening space when needed to grip pipe or other round work pieces.
Corresponding Canadian patent no. CA-54,038 was issued November 11, 1896 and British patent GB-189619868 was registered Sept. 8, 1896.
A known example has hand stamped markings. |
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