US Patent: 1,634,908
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| Wrench
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| USPTO Classifications: |
| 81/99 |
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Patent Dates:
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| Applied: |
Mar. 03, 1924 |
| Granted: |
Jul. 05, 1927 |
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Patent Pictures:
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Earnest E. Lynch & Homer A. Mead patent July 5, 1927 |
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Stan Schulz
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Description: |
| The movable jaw of the self-adjusting wrench is shaped so the the wrench will contact four sides of a hexagonal nut for all the sizes within its range. If the jaw surfaces have teeth, the wrench will turn pipe or other round objects. A spring holds the jaw in the closed position.
This is the 2nd of several patents for successive iterations of the MASTERENCH. See also 1,533,602, 1,735,257, 1,885,616} and 2,028,406. |
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