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US Patent: 525,435
Milton Wenger - New Holland, PA

USPTO Classifications:
81/105, 81/DIG.3

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches


Not known to have been produced

J. H. Siggers
F. M. Johnson
A. W. Snader
D. S. Schlaude

Patent Dates:
Applied: Nov. 11, 1892
Granted: Sep. 04, 1894

Patent Pictures:
Milton Wenger patent September 4, 1894
USPTO pdf tiff
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The patented feature is a release mechanism that allows free movement of the adjusting nut on a steep-pitched thread adjustable wrench. The single-jaw versions have a jaw extension which is a "hook" to move the jaw, and the release mechanism is a rod extending back into the handle. The combination allows for one-handed operation & adjustment.

The double-jaw version has lever pawls that hold the adjusting nut from turning.

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