US Patent 8931787 Support cart for industrial machine screw

A support cart for a machine screw may comprise a frame and a plurality of trolleys. The frame may have a pair of tracks and a caster assembly. The caster assembly may have a first position where the frame does not contact a surface, such as a floor, allowing the frame to be movable. The caster assembly may also have a second position which allows the frame to contact the surface, such as a floor, rendering the frame to be substantially stationary. The plurality of trolleys may include a base, an adjuster, a support bracket, and a plurality of rollers. The trolleys may be movable along the tracks of the frame via the plurality of rollers. A height position of the support bracket may be adjustable relative to the base via the adjuster.