Patent attributes
A toggle locking tool is provided with an adjustment screw assembly comprising a force-enhancing shank that enables the holding force of the tool to be multiplied manifold. The adjustment screw assembly comprises an adjustment screw conventionally adapted to be fed into and to engage a threaded bore in the outer end of the fixed handle of the tool; however said adjustment screw itself comprises an internal, fine-threaded bore that extends through the length of said screw, and that receives a threaded force-enhancing shank having a head portion adapted for turning manually or with a turning tool. An end portion of said shank extends beyond the adjustment screw to form the bearing surface which, in a conventional toggle locking tool, is provided by the tip of the adjustment screw. Rotation of the adjustment screw provides rapid, low-force locking adjustment of the tool, and subsequent torquing of the force-enhancing shank results in the application of a multiplied locking force to the jaws of the tool.
