Abstract: A printing roller has an outer surface and is rotatable in a rotational sense about a roller axis. A liquid applicator has an upstream blade having an edge engageable with the roller surface and a downstream blade having an edge engageable with the roller surface downstream in the sense from the upstream-blade edge. The blades form a compartment fillable with a liquid to be applied to the roller outer surface. The upstream blade is shifted on rotation of the roller between an engaged position with the respective edge engaging the surface and a disengaged position with the respective edge spaced radially from the surface.

Abstract: Objects to be printed are loaded one-by-one onto a conveyor extending through and upstream from a printing station in a longitudinally extending row in groups each having a predetermined number n of longitudinally aligned objects and a longitudinal length equal to n times a predetermined step length and with the groups separated in the row from one another by an empty gap having a short length equal to n?1 times the predetermined step length. The thus oriented objects are moved by the conveyor through the printing station in alternating long steps having a long length equal to n times the predetermined step length and short steps equal to n?1 times the predetermined step length such that with each long step one of the groups is positioned in the printing station. In the printing station the objects are taken off the conveyor, printed, and returned to the conveyor between the long steps.

Abstract: The inventions relates to an apparatus, in particular for a screen-printing machine, for measuring tension in a printing screen in a frame, characterized in that a holder for the frame (1) has holder bars (3a, 3b, 3c, 3d) each formed of a plurality of sections (3a1, 3a2, . . . , or 3b1, 3b.2, . . . , or 3c1, 3c2, . . . , 3d1, 3d2, . . . , ) each provided with a respective sensor (6) for measuring tension. The invention furthermore relates to a method, in particular for a screen-printing machine, for measuring tension in a screen in a screen frame, characterized in that a screen (2a) mounted in a frame (1) is mounted in a holder (3) having holder bars (3a, 3b, 3c, 3d) each formed by a plurality of sections (3a1, 3a2, . . . , or 3b1, 3b.2, . . . , or 3c1, 3c2, . . . , 3d1, 3d2, . . . ) each provided with a respective sensor (6) that measure forces between the respective section (3a1, 3a2, . . . , or 3b1, 3b.2, . . . , or 3c1, 3c2, . . . , 3d1, 3d2, . . . ) and the frame (1).

Abstract: A screen-printing process uses screens each having a frame in which is tensioned a respective mesh. Each of the meshes is tensioned and data representing tensions in the respective meshes is stored in respective memories carried on the frames of the meshes. Subsequently one of the meshes is secured in a holder of a screen-printing machine and the data from the memory of the mesh in the holder is read out. Thereafter tensions in the screens are monitored and, when the monitored tensions differ significantly from the data read out of the respective memory, tensions in the screen are reset.

Abstract: The inventions relates to an apparatus, in particular for a screen-printing machine, for measuring tension in a printing screen in a frame, characterized in that a holder for the frame (1) has holder bars (3a, 3b, 3c, 3d) each formed of a plurality of sections (3a1, 3a2, . . . , or 3b1, 3b.2, . . . , or 3c1, 3c2, . . . , 3d1, 3d2, . . . , ) each provided with a respective sensor (6) for measuring tension. The invention furthermore relates to a method, in particular for a screen-printing machine, for measuring tension in a screen in a screen frame, characterized in that a screen (2a) mounted in a frame (1) is mounted in a holder (3) having holder bars (3a, 3b, 3c, 3d) each formed by a plurality of sections (3a1, 3a2, . . . , or 3b1, 3b.2, . . . , or 3c1, 3c2, . . . , 3d1, 3d2, . . . ) each provided with a respective sensor (6) that measure forces between the respective section (3a1, 3a2, . . . , or 3b1, 3b.2, . . . , or 3c1, 3c2, . . . , 3d1, 3d2, . . . ) and the frame (1).

Abstract: A printing roller has an outer surface and is rotatable in a rotational sense about a roller axis. A liquid applicator has an upstream blade having an edge engageable with the roller surface and a downstream blade having an edge engageable with the roller surface downstream in the sense from the upstream-blade edge. The blades form a compartment fillable with a liquid to be applied to the roller outer surface. The upstream blade is shifted on rotation of the roller between an engaged position with the respective edge engaging the surface and a disengaged position with the respective edge spaced radially from the surface.

Abstract: Objects to be printed are loaded one-by-one onto a conveyor extending through and upstream from a printing station in a longitudinally extending row in groups each having a predetermined number n of longitudinally aligned objects and a longitudinal length equal to n times a predetermined step length and with the groups separated in the row from one another by an empty gap having a short length equal to n?1 times the predetermined step length. The thus oriented objects are moved by the conveyor through the printing station in alternating long steps having a long length equal to n times the predetermined step length and short steps equal to n?1 times the predetermined step length such that with each long step one of the groups is positioned in the printing station. In the printing station the objects are taken off the conveyor, printed, and returned to the conveyor between the long steps.

Abstract: An ink applicator has at least one generally stationary mounting part, a fixed elongated bar fixedly mounted on the mounting part and carrying an elongated applicator blade, and a movable elongated bar mounted on the mounting part, extending parallel to the fixed bar, carrying an elongated applicator blade parallel to the fixed-bar blade, and defining an elongated ink-holding compartment with the fixed bar. The movable bar is supported on the mounting part for movement between an outer position with the movable-bar blade spaced transversely from the fixed-bar blade and defining a gap through which ink can flow out of the compartment and an inner position with the blades engaging one another and closing the gap so that no ink can flow out of the compartment.

Abstract: A paper web draw-in device for a rotary printing press includes a plurality of guides that support a web draw-in cable or chain. The guides are adjustable in a direction transverse to the web conveying direction. Different positions of these guides can be set in response to the widths of various webs being drawn into the rotary printing press.

Abstract: The invention relates to a device for axially adjusting guides for paper web infeed means of rotary printing machines. According to the invention, different alignments of the paper infeed means can be set, said alignments being distanced from the lateral mount.