US Patent: 139,520
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Improvement in Pipe-Wrenches
Improved Adjustable Pipe Wrench
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Patentee:
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| John Rigg (exact or similar names) - Cleveland, OH |
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Patent Dates:
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| Applied: |
Apr. 04, 1873 |
| Granted: |
Jun. 03, 1873 |
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Patent Pictures:
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1 | 2
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John Rigg Pat. June 3, 1873 |
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Stan Schulz
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Description: |
| One curved jaw can be adjusted in relation to the handle to fit a variety of pipe sizes. The adjustment is accomplished by studs on the handle member engaging pairs of holes in the jaw member. The central pivot bolt has a wing nut to allow the wrench to be taken apart and put back together.
Marketed as the CLIMAX pipe wrench. |
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