Patent ID: 6474124
Filing Date: 2002-11-05
Classification: B21D,Y10S

Abstract:
A cold steel cambering apparatus, comprising:a mobile forward cambering assembly having a forward-most end and a rearward-most end and therebetween a plurality of adjustable beam guides, each having first means to restrain lateral movement of at least one cold steel beam placed on the forward cambering assembly, with a plurality of guides at the ends also having second means to restrain upward movement of at least one cold steel beam placed on the forward cambering assembly; and at least one forward hydraulic lift cylinder positioned midway between the ends and directly under at least one cold steel beam placed on the forward cambering assembly with third means to impart a concave camber to at least one cold steel beam placed on the forward cambering assembly over the forward hydraulic cylinder and restrained by said first and second means; a separable mobile rear cambering assembly aligned with the forward cambering assembly and having a forward-most end and a rearward-most end and therebetween a plurality of adjustable beam guides, each having fourth means to restrain lateral movement and fifth means to restrain upward movement of at least one cold steel beam placed simultaneously on the rear cambering assembly and the forward cambering assembly, and at least one pair of rear hydraulic lift cylinders positioned to be at the rearward-most end portion of the rear cambering assembly and directly under at least one cold steel beam placed on the rear cambering assembly with sixth means to impart an upward camber to at least one cold steel beam placed on the rear cambering assembly over the rear hydraulic lift cylinders and restrained by said fourth and fifth means.