Patent ID: 6651556
Filing Date: 2003-11-25
Classification: B41F,B41P

Abstract:
A printing press for printing a first web and a second web simultaneously, comprising:a first blanket cylinder; a second blanket cylinder, the first and second blanket cylinders being arranged to form a two-web nip the first and second webs passing through the two-web nip back-to-back; a first plate cylinder associated with the first blanket cylinder, the first plate cylinder being selectively moveable between a first contacting position in which the first plate cylinder contacts the first blanket cylinder and a first off-impression position in which the first plate cylinder is remote from the first blanket cylinder; and a second plate cylinder associated with the second blanket cylinder, the second plate cylinder being selectively movable between a second contacting position in which the second plate cylinder contacts the second blanket cylinder and a second off-impression position in which the second plate cylinder is remote from the second blanket cylinder, the first and second blanket cylinders maintaining the two-web nip regardless of the positions of the first and second plate cylinders; a third blanket cylinder; an opposing cylinder, the opposing cylinder being one of a fourth blanket cylinder and an impression cylinder, the opposing cylinder and the third blanket cylinder being arranged to form a first one-web nip, one of the first web and second web passing through the one-web nip after passage through the two-web nip; and a third plate cylinder, the third plate cylinder being selectively movable from a third contacting position in which the third plate cylinder contacts the third blanket cylinder and a third off-impression position in which the third plate cylinder is remote from the third blanket cylinder, the third blanket cylinder and the opposing cylinder maintaining the first one-web nip regardless of the position of the third plate cylinder.