Abstract: Apparatus for transporting a carrier for welding equipment or the like along a predetermined path comprises a latching mechanism capable of releasably latching onto the carrier. The latching mechanism has a pair of latch arms mounted on a latch housing. The latch arms have adjacent ends which are adapted to engage forwardly and rearwardly facing abutment surfaces on the carrier when the latch arms are extended. The latch arms diverge from their adjacent ends in directions away from one another and at their opposite ends have slidable pivotal connections with the latch housing. Linkage interconnects the latch arms so that they move in unison. A drag link is provided to extend the arms into latching engagement with the abutment surfaces on the carrier, and to retract the arms.