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US Patent: 186,925
Improvements in Adjustable-Grasp Wrenches
William Dicks - Clifton, ON Canada

USPTO Classifications:
140/154, 81/128, 81/325, 81/391, 81/423, 81/DIG.4

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : wrench components : pipe jaw attachments for wrenches
wrenches : wrench components : wrench jaw components


Not known to have been produced

James Martin, Jr.
J. F. Theodore Lang
A. G. Heylman

Patent Dates:
Applied: Nov. 25, 1876
Granted: Feb. 06, 1877

Patent Pictures:
William Dicks Pat. February 6, 1877
USPTO pdf tiff
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The movable jaw can be shifted in relation to the sliding bar by depressing the spring. The lever handle moves the sliding bar to fully tighten the grasp of the jaws. T movable cam can "lock" an adjustment by keeping the sliding bar from moving. The sides of the jaws have grooves to hold auxiliary pipe jaws, axle-nut grasping jaws, and a jaw and handle combination for a tap wrench.

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