US Patent: 171,353
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| Wrench-Nut
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Patentee:
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| Jesse Conway (exact or similar names) - Baltimore, MD |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 08, 1875 |
| Granted: |
Dec. 21, 1875 |
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Patent Pictures:
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Jesse Conway Pat. December 21, 1875 |
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Stan Schulz
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Description: |
| The interior opening is wedge-shaped with gripping teeth similar to an alligator wrench. The specifications describe the use of a soft metal insert for use on polished surfaces that would be damaged by the gripping teeth. The tool is for turning bolts, studs or pipe nipples. |
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