Abstract: A method of driving the impression cylinder receiving carriages into the printing elements of a rotary printing machine whilst executing a simultaneous displacement of all the impression cylinder receiving carriages provided in the printing elements and of all the impression cylinder receiving carriages arranged in a waiting position in front of the printing elements, the displacement movement taking place in a first direction of advance and, for the subsequent driving-in of the impression cylinder receiving carriages, the latter being displaced simultaneously and together with the carriages located in the printing elements in the opposite direction.

Abstract: A method of mutually adjusting single-color images on a rotary printing press for printing multicolor images on a continuous paper strip, each single-color image being printed by a respective printing cylinder adjusted in relation to the other printing cylinders by selecting a reference cylinder from among the printing cylinders; disconnecting the printing cylinder for adjustment from a transmission common to all the printing cylinders; and reconnecting the transmission and the printing cylinder for adjustment, upon the reference cylinder, powered by the transmission, eliminating any difference in timing in relation to the printing cylinder for adjustment. FIGS. 1 and 4).

Abstract: A rotary printing press for printing strip paper, wherein a pressure roller is supported for rotation at each end by a pair of jaws of a supporting device on the printing unit. The jaws are lifted and lowered, together with the pressure roller, by a lifting device, and are opened and closed by an actuating device via a prismatic joint defined by a fixed portion and a portion moving with the jaws. The two portions of the prismatic joint mate in sliding manner as the jaws are moved by the lifting device, and, when mated, rotate integral with each other.