Patent ID: 6019039
Filing Date: 2000-02-01
Classification: B41F,B41P

Abstract:
A web-fed rotary printing press for high-speed production changes, comprising:a double printing unit through which a web is fed having first and second printing units mounted on opposing sides of the web, said first printing unit having a first transfer cylinder and a first form cylinder and said second printing unit having a second transfer cylinder and a second form cylinder;a first drive drivably connected to said first form cylinder and said first transfer cylinder and a second drive drivably connected to said second form cylinder and said second transfer cylinder;means for moving at least one of said first transfer cylinder and said second transfer cylinder between a connected position, whereat the first transfer cylinder and the second transfer cylinder are positioned for printing both sides of the web which passes therebetween using the blanket--blanket printing method, and a disconnected position, whereat the web passes between said first and second transfer cylinders without being printed, said disconnected position of said first and second transfer cylinders allowing a production change of the first printing unit and the second printing unit while the web passes therebetween; andsaid first and second transfer cylinders having journals and said means for moving comprising double eccentric bushings for receiving said journals such that rotation of said double eccentric bushings effects a movement of said first and second transfer cylinders between said connected and said disconnected position.