Rotary sheet printing machine with transport chain

Abstract

To permit application of a liquid, such as a lacquer, an ink dryer, or a coloring or area inking liquid to a sheet of paper being transported from a printing machine by a conveyor chain (6), a liquid application cylinder (14) is positioned between the upper (5) and lower (4) run of the chain. To accommodate the grippers (7, 13) and still permit application of a selected liquid to the liquid application cylinder, the liquid application cylinder is formed with a groove (15) deep enough to entirely receive the gripper structure (7, 13) therein and guide rails or tracks (17, 19; 18, 20) are provided, guiding the grippers such that a sheet is moved in contact with the circumference of the application cylinder by guiding the engagement surface of the grippers tangentially with respect to its circumference, and guiding the return run of the chain such that the grippers are wholly received within the groove to permit supply of the roller by a liquid transport or supply roller (22) and provide for clearance of the grippers and gripper structure with respect to that transport or supply roller and prevent damage thereto. A counter roller which operates in the form of a printing or impression cylinder may be provided, in engagement with the ink application cylinder, the counter cylinder (26), for example, forming a rubber blanket cylinder of another offset printing system (28, 30).

Dependencies are inferred from the claim text.