Vehicle frame straightening tool

Claim 1

A portable vehicle frame straightening machine including a horizontal beam adapted to be positioned beneath an automobile body to be repaired, a fixed vertical post disposed at one end of said beam and having a plurality of vertically spaced openings therein, a pair of guide roller assemblies positionable at any one of said openings, a selectively engageable chain locking means on each of said guide roller assemblies, a power arm pivoted on said machine adjacent the lower end of said post, said arm having a pair of spaced chain receiving means, a pair of pulling chains extending over said guide roller assemblies and each Passing through one of said pair of chain receiving means, a hydraulic cylinder for pivoting said power arm in a downward direction and means for supporting said cylinder on said post in a position above said power arm and means for selectively and independently connecting both of said chains to said power arm chain receiving means whereby said chains may be pulled simultaneously by said power arm, one of said chains then being disengaged from said power arm and locked by the chain locking means of its associated roller assembly and the pull connected on the other of said chains.