Abstract: Workpieces are transported step-by-step by of transport bars which are provided with grippers and which are longitudinally, transversally and vertically displaceable. In addition to their transversal movement in the horizontal direction, the transport bars perform a slightly inclined movement in the longitudinal direction, in such a manner that the respective workpieces enter the next tool station in a lifted position. Without a special vertical drive for the transport bars, a safe transfer is obtained without the risk that workpieces collide with parts of the tool stations.