US Patent: 1,490,902
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| Pliers, Wrench or the Like
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Patentee:
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| Allen C. Allan (exact or similar names) - Baraboo, WI |
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Patent Dates:
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| Applied: |
Apr. 18, 1922 |
| Granted: |
Apr. 22, 1924 |
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Patent Pictures:
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Allen C. Allan Pat. April 22, 1924 |
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Stan Schulz
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Description: |
| The shape of the handles, and of the intersection of the handles, makes the tool self-adjusting. The small hinged piece narrows the slot effectively creating two size ranges. Plier wrenches employing this patent have a sliding joint with no pivot bolt.
Used in conjunction with Allan's April 1920 and August 1921 patents (nos. 1,337,986 and 1,386,149) for the KANT-SLIP line of plier wrenches.
A version including a pivot bolt and more closely resembling conventional pliers appears to match patent no. 1,873,805 granted Aug. 23, 1932. |
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