US Patent: 2,076,830
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| Pipe Wrench
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Patentee:
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| William O. Thewes (exact or similar names) - Cleveland, OH |
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Patent Dates:
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| Applied: |
Oct. 26, 1934 |
| Granted: |
Apr. 13, 1937 |
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Patent Pictures:
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William O. Thewes Patent April 13, 1937, with IMPROVED STILLSON |
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Stan Schulz
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Description: |
| The patent replaces leaf springs with conical compression coil springs to provide the "centering" function for the frame of a Stillson type pipe wrench.
Photo of known example marked "IMPROVED STILLSON / PAT. NO. 2076830" supplied by Sam Spector.
The original application was divided, and resulted in this patent and no. 2,051,755, issued Aug. 18, 1936. |
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