Abstract: A device is provided for engaging and/or disengaging a roller with or from a first mating roller. The device includes a second mating roller, with which the roller is engaged, and with a basic unit, with which the roller can be moved to or away from the first mating roller in the circumferential direction of the second mating roller. A process for engaging and/or disengaging a roller of a printing press with or from a first mating roller is provided wherein the roller is engaged with a second mating roller and the roller is guided in the circumferential direction of the second mating roller in the state in which it is engaged with the second mating roller.

Abstract: A device is provided for engaging and/or disengaging a roller with or from a first mating roller. The device includes a second mating roller, with which the roller is engaged, and with a basic unit, with which the roller can be moved to or away from the first mating roller in the circumferential direction of the second mating roller. A process for engaging and/or disengaging a roller of a printing press with or from a first mating roller is provided wherein the roller is engaged with a second mating roller and the roller is guided in the circumferential direction of the second mating roller in the state in which it is engaged with the second mating roller.

Abstract: A protective device is provided on printing presses with a two-dimensional protective cover. The cover is mounted pivotably around a pivot axis in a press frame and shields a cylinder pair from access by an operating personnel and grants access to the said cylinder pair after pivoting off from the cylinder pair. The cylinder pair comprises a rubber blanket cylinder and a plate cylinder. A separate protective cover is provided for each of the cylinder pairs of a printing tower with "U" and "N" (type) bridge elements arranged alternatingly one on top of another.