Abstract: A transverse conveyor for a multi-station processing system for pin-shaped workpieces, includes a plurality of pivoted swivel arms, a pair of gripper arms being pivoted to each swivel arm. The pairs of gripper arms have mutually engaging teeth for coupling motion therebetween, and springs are provided to bias the arms closed. The swivel arms are intercoupled for mutual pivoting about their respective axes. The gripper arms are mounted for movement between pairs of adjacent processing stations. One of the gripper arms of each pair is coupled to a roller positioned to engage a circular guide, and the guide is on a pivoted lever whose displacement is controlled by a rotary cam. The rotary cam is shaped to hold the circular guide away from the roller except when the gripper arms are to be opened.