Abstract: A two member connector to twist connect two ductile wires, releasable coupling means is provided to couple inner ends of the members together, each member has a cavity means including a pair of transversely spaced wire chambers each sized to accept a wire to be joined, the cavity means of at least one member includes a central chamber disposed between the wire chambers of that member and sized to accept two wires when twist connected, a slot connects the central chamber with each of its associated wire chambers and the sides of the slots provide brake surface means; to form a twist connection the two wires are housed in the wire chambers of both members and the members are contra-rotated to bring torque applying and reaction shoulders of each cavity means into contact with the wires to force the wires together and twist connect them, in the formation of the twist connection the wires in the member with the central chamber are drawn into the central chamber from the wire chambers over the brake surface means w

Abstract: A mobile machine to store pipe lengths to be added to and then removed from a generally horizontal pipeline connected to a mining machine. The mobile machine is provided with a pipe length magazine which can be moved so as to allow any pipe to be transferred from the magazine to a pipe handling position where other means take over control of the pipe to move it axially to engage it with the end of a pipeline.

Abstract: A bogie having a bolster comprising a center pin support, and elongated support member mounted in center pin support, cam means on the center pin support to co-act with complementary cam means on a wagon to bias the support member to a position transverse to the rail track; two parallel side frames mounted on the respective ends of the support member and lying parallel to the rail track, four wheel supporting arms located one below each end of the side frames, two wheel arm supports one on either side of the support member on each of which is pivotally mounted two of said wheel supporting arms, two downwardly divergent pivotal connections respectively connecting each wheel arm support to the center pin support to bias the wheel supporting arms to a position parallel to the rail track, springs between overlying portions of the side frames and the wheel supporting arms and a wheel rotatably mounted on each wheel supporting arm.