Wrench

Claim 1

A wrench for gripping disc brake pistons and like articles by internal engagement thereof, comprising: a lever arm having one end adapted to be manually gripped and comprising a forceapplying handle portion for exertion of wrench-using forces thereon, a pair of gripping jaw members carried by said lever arm at an opposite end with one said jaw member being fixedly mounted on said opposite end of said lever arm, with the other said jaw member being slideably mounted for movement along said lever arm, with both said jaw members protruding laterally of said lever arm generally transverse thereto but parallel to each other and with each said jaw member terminating in a force-applying articleengaging free end thereof at a location remote from its mounting on said lever arm, with means carried by said jaw members for adjustment of the relative distance between said jaw members, said means having an elongated handle portion extensible to a position laterally adjacent said one end of said lever arm, with said adjustment means being in engagement with each said jaw member at a location along each jaw member between its mounting on said lever arm and its free end, with said adjustment means cooperating with said jaw members to comprise means for applying article-engaging forces to articles by adjusting the relative positions of said jaw members at locations near the forceapplying free ends thereof, including a coil spring carried by said lever arm, having one end in endwise engagement therewith, and with the other end in endwise engagement with said movable jaw member for urging the same toward said fixed jaw member, with said adjustment means being seated in the fixed said jaw member in abutting unconnected relation therewith and being in threaded engagement with the movable said jaw member, and with said spring being operative through said movable jaw member to maintain said adjustment means in abutting seated relation relative to said fixed jaw member.