Abstract: A distribution drive for a roll in a processing machine, and particularly in a press which has an improved axial motion distribution mechanism and which requires little installation space. This is achieved by an input drive mechanism coupled to a drive having at least one pinion gear 8 which is coupled to a gear 10. Arranged on a side face of the gear 10 is a first pin 17 which, together with a second pin 22, forms a rotary joint 20 by the first pin 17 penetrating the second pin 22. Together with a bearing arm 23, the second pin 22 forms a sliding joint 21, with the second pin 22 being accommodated at the ends in the bearing arm 23, and the bearing arm 23 being coupled to the roll 3.

Abstract: A distribution drive for a roll in a processing machine, and particularly in a press which has an improved axial motion distribution mechanism and which requires little installation space. This is achieved by an input drive mechanism coupled to a drive having at least one pinion gear 8 which is coupled to a gear 10. Arranged on a side face of the gear 10 is a first pin 17 which, together with a second pin 22, forms a rotary joint 20 by the first pin 17 penetrating the second pin 22. Together with a bearing arm 23, the second pin 22 forms a sliding joint 21, with the second pin 22 being accommodated at the ends in the bearing arm 23, and the bearing arm 23 being coupled to the roll 3.

Abstract: Multicolor prints should be economically producible in a printing machine suited for automation. For this purpose a printing machine is configured which operates according to the collect-run principle. The multicolor prints are collected on a rubber cylinder (21 on a printing cylinder (5). The printing machine is capable of processing two printing colors (inks) in one printing unit. For the execution of the collecting printing the sheets are fed in a cycle offset to the rotation of the collecting cylinder. There are yielded very compact and simply structured printing machine configurations.

Abstract: Multicolor prints should be economically producible in a printing machine suited for automation. For this purpose a printing machine is configured which operates according to the collect-run principle. The multicolor prints are collected on a rubber cylinder (21 on a printing cylinder (5). The printing machine is capable of processing two printing colors (inks) in one printing unit. For the execution of the collecting printing the sheets are fed in a cycle offset to the rotation of the collecting cylinder. There are yielded very compact and simply structured printing machine configurations.

Abstract: A printing machine which allows for the economic production of multi-color prints and allows for automation of the printing process is provided. The printing machine according to the collect-run principle in which the multicolor prints are collected on a rubber cylinder. In a single printing unit, the printing machine can also process two different printing inks. To execute the collect-run printing operation, the sheets are fed in a cycle offset to the collection of the images on the rubber cylinder. This enables very compact and simply structured printing machine configurations.

Abstract: To facilitate the attachment and adjustment of a printing plate on the outer surface of the plate cylinder of a printing machine, a layer of friction-reducing material is applied to the underside of the printing plate or the outer surface of the plate cylinder or both. The friction-reducing, sliding material may be a thermoset material, a thermoplastic material or an inorganic dry lubricant. The sliding material may be burnt into the supporting surface or bonded thereto by an adhesion promoting substrate layer.

Abstract: Multicolor prints should be economically producible in a printing machine suited for automation. For this purpose a printing machine is configured which operates according to the collecting (collect-run) principle. The multicolor prints are collected either on a rubber cylinder (21) or on a printing cylinder (5). The printing machine is capable of processing two printing colors in a printing unit (11, 12). For the execution of the collecting printing, the sheets are fed in a cycle offset to the rotation of the collecting cylinder. For the printing of both sides double-sized sheet-conducting drums (6, 13, 14) are provided, or cylinders with a turning device or alternately set-on printing units.

Abstract: A method and device for washing the printing cylinder of a printing machine, especially an offset rotary printing machine, in which a washing device with a washing roller with a covering capable of absorbing liquid is premoistened prior to performing the first washing operation after a long standstill period of the printing machine. As a result, the efficacy of the first washing operation after an interruption to operation of the printing machine is improved, the wear on the covering of the washing roller is reduced, and damage to the printing cylinder from a dry covering of the washing roller is avoided.

Abstract: A guard mechanism for a printing machine which includes a guard plate that is movable between a first position which impedes access to the interior of the printing machine and a second position which permits access to the interior of the printing machine and the plate cylinder and ink fountain located therein, the guard plate having an articulated connection with to the ink fountains such that upon movement of the ink fountain to a throw-off position the guard plate is simultaneously moved to a position which prevents the possibility of interference between movement of the guard plate and ink fountain.

Abstract: An apparatus for clamping a flexible printing plate onto a plate cylinder including an adjustable front clamping strip for releasably engaging a leading end of the printing plate and a plurality of axially spaced pins which engage respective axially spaced holes in the rear of the printing plate. The printing plate is held on the circumference of the printing cylinder with relative little force so that any inaccuracies can be easily corrected through adjustment of the front clamping strip.

Abstract: A printing machine plate cylinder having a plate tensioning slide rail adjustably mounted within a hollow of the cylinder. The slide rail is supported by a plurality of roller ring modules which stably support the slide rail and permit easy and exact movement of the slide rail in any direction in the adjusting plane.

Abstract: A device for monitoring the side lay marks and excess draw of a sheet fed rotary press that further ensures that sheets are at a sufficient distance from the side lay mark prior to transverse conveyance. A lateral sensor is positioned at a predetermined distance from the side lay mark so that when front sensors determine the presence of a sheet at front lay marks, the lateral sensor is evaluated. The sheet will only be conveyed transversely toward the side lay if the lateral sensor has not detected a sheet but the front sensors have, thus ensuring that the side edge of the sheet is at a sufficient distance from the side lay mark. A single sensor can also be used for all side lay mark monitoring, including monitoring for excess draw.

Abstract: The accurately positioned tensioning of a printing plate on the printing cylinder of a printing mechanism. The circumference of the printing cylinder has a groove extending in the axial direction of the cylinder which accommodates a tensioning and fastening mechanism for the printing plate. The mechanism includes a front tensioning bar for the start of printing of the printing plate and a rear tensioning bar for the end of printing of the printing plate, the rear tensioning bar being disposed ahead of the front tensioning bar in the direction of rotation of the printing cylinder.

Abstract: An oscillating form roller in the inking mechanism of a printing press includes a roller casing which is rotatable and axially displaceable relative to a roller shaft. During its axial displacement the roller casing encounters set collars that are fastened to the roller shaft so as to be continuously adjustable. Friction surfaces are provided so that, in this contacting position, the set collars and the roller shaft are caused to rotate in synchronism with the roller casing.

Abstract: A mechanism for selectively engaging the doctor blade in a washer for the blanket cylinder of a printing press. The mechanism permits independent control of doctor blade engagement and, through the use of a plurality of adjustably mounted fluid pressure actuators spaced along the length of the doctor blade, facilitates accurate blade alignment, thus preventing non-uniform wear of the doctor blade and the washer roller.

Abstract: A gripper finger for a gripper spindle in a sheet-fed printing press includes first and second components. The first component has a gripper finger extension which contacts a gripper finger support at a transfer point. The first and second components cooperate to form an enclosure angle for enclosing the gripper spindle, with the first component contributing a maximum of 180 degrees to the enclosure angle and the second component supplementing the enclosure angle. The second component is fastened to the gripper spindle. A first compression spring is disposed between the ends of the first and second for exerting an adjustable, first spring force approximately in a direction of the transfer point. An adjustment screw is threadably engaged with one of the components and has a tip which lies against the supporting plane of the other component for exerting a screw force approximately in a direction of the transfer point.

Abstract: A plate cylinder wherein at least two thin sheets are disposed between the plate cylinder and its printing plate. These thin sheets each have surfaces with different coefficients of sliding friction. The smoother sides of the thin sheets lie on top of one another and the rougher sides lie against the surface of the cylinder and the underside of the printing plate, respectively. Thus the friction between the cylinder and the printing plate is reduced considerably, thereby facilitating retightening of the printing plate on the plate cylinder as well as aligning the printing plate to come into register.

Abstract: Disclosed is an apparatus for a printing press, with means being provided in the press for correcting any out-of-register position of a printing plate, so as to release, after the printing plate has been clamped onto the plate cylinder, initially the tension of a rear tensioning strip, whereupon a forward tensioning strip is canted by a desired degree. Then, rear stops are moved back and the rear tensioning strip is tensioned by way of spring force. The described steps are repeated if required. Means are also proposed to noticeably reduce the sliding friction between the plate cylinder and the printing plate.

Abstract: A sheet feed rotary press having a main ink feed unit and a plate cylinder, at least one of a plurality of transfer and applicator rolls coupled between the main ink feed unit and the plate cylinder being moveable to an inoperative position for selectively isolating a relatively short length group of applicator and transfer rolls from the main ink feed unit, and an additional quick acting ink feed unit that is selectively moveable into engagement with the short length roll group for supplying lesser quantities of ink to the plate cylinder through a shortened path via the short length roll group.

Abstract: A printing machine plate cylinder having a plate tensioning slide rail adjustably mounted within a hollow of the cylinder. The slide rail is supported by a plurality of roller ring modules which stably support the slide rail and permit easy and exact movement of the slide rail in any direction in the adjusting plane.