US Patent: 400,380
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Wrench
Improvement in Pipe Wrenches
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Patentees:
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| William C. Worthen (exact or similar names) - Boston, MA |
| Gurdon Pendleton, Jr. (exact or similar names) - Boston, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 09, 1888 |
| Granted: |
Mar. 26, 1889 |
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Patent Pictures:
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William C. Worthen and Gurdon Pendleton, Jr. patent March 26, 1889 |
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Stan Schulz
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Description: |
| Improvement on patent no. 397,954. The paired rollers are linked by a curved strap so the distance between them does not change. The rollers in tapered recesses form non-marring gripping surfaces for pipe. The movable jaw adjusts by a turnbuckle type screw adjustment.
Corresponding Canadian patent no. CA-31,613 was granted June 18, 1889. |
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