US Patent: 1,651,575
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| Pipe Wrench
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Patentee:
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| William L. Bessolo (exact or similar names) - Clearwater, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 09, 1923 |
| Granted: |
Dec. 06, 1927 |
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Patent Pictures:
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William L. Bessolo patent Dec. 6, 1927 |
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Stan Schulz
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Description: |
| The gripping chain in this patent is similar to the chain in Bessolo's patent no. 1,548,344. The latching action is accomplished by a cam bolt which shifts the toothed gripping end of the handle against similar toothed area on the gripping chain.
The handle which operates the cam bolt has a spring catch which fits into a notch in the main handle to hold the gripping teeth against the chain.
In the drawing, Fig. 3 shows the latch structure bearing against the surface of a pipe; Fig. 6 shows the detail of the "fixed" end of the gripping chain, and Figs. 7 & 8 show details of the spring catch on the end of the cam operating handle.
Parallel patent no. 1,651,576 shows a much simpler latch for this style of chain tongs. |
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