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US 2014/0174265 A1Published application
Holding Wrench with Torsion-Resistant Variable Engagement Mechanisms
OwnerMartin Thomas Wirthinventor
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OwnerMartin Thomas Wirthinventor
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The holding wrench consists of a torsion-resistant lever with an extension for a pivot to hold a second torsion-resistant arm to present two mobile surfaces in a fixed work plane. The force of the present invention is applied parallel to the work plane resulting in a torque vector that is perpendicular to the work plane. The working ends of the lever and arm have emplacements for tooling such as rigid pins or holes to attach to protrusions such as bolt heads. Two male tooling emplacements each consist of hole in which tooling is inserted and a threaded hole located orthogonal to the tooling hole for a set screw or other fastener that may hold the tooling in place. Two female tooling emplacements may be used to directly engage protrusions on a sprocket or as receptacles for tooling custom fitted to said protrusions.
A tool, hereinafter called the wrench, for holding a rotatable work piece such as a pulley or sprocket to facilitate the attachment, tightening, or removal of fasteners such as nuts and bolts that hold a work piece on a shaft, said tool comprising a torsion-resistant lever, an offset pivot affixed to the lever, and a torsion-resistant arm attached to the pivot, both working ends of the lever and arm having emplacements for tooling such as rigid pins that may be inserted into two holes and leaving sufficient room in the center for receiving a driver that attaches to and applies torque to the shaft bolt or other fasteners.
Dependencies are inferred from the claim text.