US Patent: 1,041,967
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| Wrench
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Patentee:
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| William Cronk (exact or similar names) - Montour Falls, NY |
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Patent Dates:
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| Applied: |
Oct. 25, 1910 |
| Granted: |
Oct. 22, 1912 |
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Patent Pictures:
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William Cronk patent October 22, 1912 |
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Stan Schulz
Cronk Hanger Co.
Biography of William Cronk
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Description: |
| The sliding button adjusts the jaw width; the patent shows a locking knurled nut. The adjustment mechanism was used on both adjustable "alligator" wrenches and nut wrenches like those shown in pictures #29, #450, #451, and #574 in "Antique and Unusual Wrenches" by Schulzes.
Ken Cope's "American Wrench Makers 1830-1930" gives a brief history of the manufacturer.
Patent no. 618,485 uses a very different principal of slide at the intersection of two slots. |
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