Abstract: Railway brake beam head adapted for selective mounting of cast iron shoe or composition shoe and adapted to reject either type of shoe after having been selected for mounting the other type.

Abstract: A wrench includes an elongated shank, an axial cavity in one end of the shank, a radially split annular driving member formed with radial tangs fitting into the axial cavity in the shank, a cylindrical head mounted within the driving member and frictionally gripped thereby, and manually actuable means whereby the grip is increased during forward movement of the shank in a selected direction and released during back-up movement of the shank.

Abstract: A hanger is provided for supporting an infant nursing bottle from the top crossbar of an infant swing, the hanger comprising an elongated member with a hook at its upper end for support on the swing crossbar and a loop at its lower end to grip the bottle and maintain it in a substantially horizontal position directed toward the location of the infant's mouth.

Abstract: A method and apparatus is provided for bending elongated members such as pipe sections by the application of axial compression to both ends of a pipe section positioned between parallel guides. Preferably the apparatus comprises a pair of fittings with pivot mountings receivable in both ends of the pipe section, means for forcing the fittings toward each other in a direction axial of the pipe and for initially applying slight transverse pressure to the pipe section intermediate its ends in a direction radially outward with respect to the desired bend, and parallel planar guides on opposite sides of the pipe section.