US Patent: 501,860
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| Combined Pipe and Monkey Wrench
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Patentee:
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| William S. Bemis (exact or similar names) - Springfield, MA |
| USPTO Classifications: |
| 81/93 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 08, 1893 |
| Granted: |
Jul. 18, 1893 |
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Patent Pictures:
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William S. Bemis patent July 18, 1893 |
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Stan Schulz
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Description: |
| The movable combination nut and pipe jaw has an adjustable internal sliding wedge which allows for lateral movement when the wrench is used as a pipe wrench, but disables lateral movement when the wrench is used as a nut wrench.
The pipe jaw inserts and general style of the jaws appeared in B&C pipe wrenches. The pipe gripping insert in the movable jaw of the B&C combination pipe & nut wrench based on patent no. 145,085 was held in place by a screw through the early 1890s. After then, it was held by a "transverse pin" similar to the layout in this patent. |
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