Collapsible straightener for automobile frames

Claim 1

Automobile frame straightening apparatus for use with force applying means such as hydraulic jacks or the like comprising: a. a pair of longitudinal main I-beams; b. a pair of transverse I-beams, each transverse beam having a means for connecting each of said transverse beams to one end of each of the longitudinal main beams, each transverse beam being positioned at opposite ends of the longitudinal main beams, connected by a bracket pivotally mounted to the main beam, and so constructed and arranged that the apparatus is selectively positionable into and out of 1. an extended position wherein the longitudinal main beams are spaced a substantial distance apart to accommodate a vehicle thereon with the transverse support beams substantially normal to the longitudinal main beams and held rigidly in place, and 2. a retracted position wherein the longitudinal main beams are close together and the transverse beams are substantially parallel to the longitudinal main beams; c. a pulling rail for mounting the force applying means which pulling rail includes a horizontal I-beam portion, and d. a slidable, pivotable bracket for mounting said pulling rail on any of the longitudinal main beams or transverse beams for selectively applying straightening forces on the automobile frame when the apparatus is in its extended position, which bracket comprises an upper portion channeled to mount said bracket onto the lower flange of said main beams or transverse beams, and a lower portion affixed to said upper portion in such manner that it is free to rotate, and channeled wherein the upper flange of said I-beam portion of said pulling rail can be mounted in said slot.