US Patent: 254,460
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| Pipe Wrench
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Patentee:
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| Matthew Thos. Chapman (exact or similar names) - Aurora, IL |
| USPTO Classifications: |
| 81/70 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 08, 1880 |
| Granted: |
Mar. 07, 1882 |
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Patent Pictures:
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Matthew Thos. Chapman patent March 7, 1882 |
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Stan Schulz
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Description: |
| This chain wrench has two chains; one on each side. They can be wrapped around a pipe in parallel, or used in conjunction with leather or soft metal pads to prevent marring pipe. The specifications disclaim any features covered by E. H. Robbins' May 2, 1871 patent (no. 114,348). |
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