Rotary web processing machines

Claim 1

In a rotary web processing apparatus, a frame, an impression cylinder, means mounting said impression cylinder on said frame and permitting stepless generally radial movement of said impression cylinder during setting up of said apparatus, means for effecting movement and fixation of the radial position of said impression cylinder during setting up and web processing respectively, said impression cylinder mounting means comprising cradle means adapted to carry the impression cylinder, eccentric means pivotally mounting said cradle means on said frame, and means for adjusting said eccentric means for effecting adjustment in height of said cradle means pivot axis and means connected between said impression cylinder cradle means and said frame to effect both the stepless adjustment of the radial position of said impression cylinder and cradle means and their fixation in a selected radial position, a processing cylinder, means mounting said processing cylinder on said frame adjacent said impression cylinder and resiliently permitting stepless generally radial movement of said processing cylinder relative to said impression cylinder during web processing, means for moving said processing cylinder mounting means to urge said processing cylinder towards said impression cylinder, and adjustment means having a first position in which the movement of said processing cylinder mounting means is positively limited during setting up of said apparatus to establish a predetermined limit position of said processing cylinder with respect to said impression cylinder and a second position in which movement of said processing cylinder mounting means and processing cylinder towards said radially fixed impression cylinder is substantially unrestricted to maintain the nip pressure between said processing and impression cylinders during web processing.