US Patent: 456,830
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| Machine Wrench
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Patentee:
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| Marshall Martin (exact or similar names) - Walla Walla, WA |
| USPTO Classifications: |
| 81/56 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 31, 1890 |
| Granted: |
Jul. 28, 1891 |
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Patent Pictures:
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Marshall Martin patent July 28, 1891 |
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Stan Schulz
Martin*s Combined Rim Wrench and Bolt Cutter (FLICKR)
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Description: |
| Tire bolt wrench for carriage wheels. The gear wheel with the nut-driving socket is interchangeable to fit different sizes of nuts. The "throw" of the crank is adjustable, and the bolt holder and its frame are also adjustable.
A version of this wrench is incorporated in Martin's Combined Wheel-Wrench and Bolt Clipper (patent no. 469,580 - February 23, 1892). |
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