Truck mounted railroad crane rail gear assembly

A train rail gear assembly for use with vehicle frames of truck mounted railroad cranes and other like railroad vehicles, comprising housing means having top, bottom and side walls mounted to said vehicle frame, a fluid actuated cylinder associated with said housing means and extending through the top and bottom walls of said housing means, and a compression spring extending about the fluid actuated cylinder including a piston and chamber section, the fluid actuated cylinder piston section at its lower end being connected to a pair of rotatably mounted flanged wheels adapted for use with railroad track, the chamber section of the fluid actuated cylinder having flange means associated therewith within the housing means for engaging the bottom wall of the housing means to limit downward movement of the chamber section of the fluid actuated cylinder, said compression spring being mounted in non-compressed condition in said housing means between the flanged means of the fluid actuated cylinder chamber section and the top wall of the housing means, said fluid actuated cylinder piston section being operable to first lower said pair of rotatably mounted flanged wheels a predetermined distance for a engagement with a railroad track, and said compression spring being thereafter compressed between the flanged means of the fluid actuated cylinder chamber section and the top wall of the housing means whereby to act as a cushion and shift weight from the vehicle frame to the compressed compression spring.