Pollock’s Automatic adjusting wrench This quick-adjust/automatic-adjust wrench was manufactured by Wisconsin Stamped Steel Co., Madison, Wisconsin, in the 1920s. On most self-adjusting wrenches, the jaw slides tight on the nut. On the Pollock’s wrench, when the lever is pushed, a spring-loaded jaw flies open. Then, push the jaw back tight on the nut and the wrench locks in position. “It works opposite of most quick-adjust wrenches,” Joe says, “and it’s a hard one to find.” Made up of about 20 pieces of pressed steel, the wrench would have been expensive in an era when most wrenches sold for about $1.
Photo by Bob Crowell