Abstract: A low-oscillation and space-saving drive for a changeable format folder of a rotary printing is provided, the rotary printing machine having rotating subassemblies that can be driven, in particular a cutting cylinder, a pin folding blade cylinder, a folding jaw cylinder, a gripper folding blade cylinder, and perforating cylinders belonging to a perforating device. The drive is split up into individual subsystems, and each subsystem is assigned a controlled-position drive motor. In the event of failure of a drive motor, the drive continues to operate without functional impairment.

Abstract: A folding roll distinguished by good shape and dimensional accuracy bears a frictional layer applied to the even surface of the folding roll, adjacent deeper areas being formed by application-free regions. The method of producing the folding roll includes the fitting of a mask to the folding roll, the mask having cutouts with the form of frictional areas to be applied. This is followed by the application of the frictional layer by means of thermal spray-coating and, following that, the removal of the mask.

Abstract: An apparatus for producing a sleeve-shaped printing form from a plate-shaped blank includes a circular shaping device for the blank, a welding system, by means of which the plate edges forming the start and end of the printing form can be cut to size, maintaining their dimensions, and welded, and a displaceable device for picking up and for transporting the blank to the circular shaping device. The displaceable device has a fixing frame which has two lifting elements which can be adjusted in accordance with the distance between the plate edges to be joined and can be set along the respective plate edge.

Abstract: A transfer cylinder sleeve is provided for an offset printing machine including an inner carrier layer, a compressible layer and a covering layer, where at least one of the layers has a joint or a gap and provided that when a joint or a gap is used in the covering layer, then the transfer cylinder sleeve is applied to a transfer cylinder in register so that the joint in the covering layer rests opposite a tension channel of a plate cylinder during rolling contact of the transfer cylinder with the plate cylinder. Optionally, a non-stretchable layer is provided between the compressible layer and the covering layer, or alternatively, a non-stretchable material is provided in the compressible layer itself.

Abstract: An apparatus for setting the lateral register of a printing unit of a rotary press that prints on a paper web includes a first bearing block configured as a locating bearing arranged on the drive side of a forme cylinder; and a second bearing block configured as a floating bearing on the operating side of the forme cylinder. A pressure medium operated operating cylinder displaces the first bearing block axially and presses it against an adjustable stop without play for the purpose of setting the lateral register. A controller controls the axial location of the adjustable stop in at least one of a closed-loop fashion and an open-loop fashion based on register deviations determined by a scanning optics unit.

Abstract: A forme cylinder is provided with a circumferential surface which is convexly curved in the axial direction, such that the convex profile, determined by calculation, of the circumferential surface varies in such a way that the diameter of the forme cylinder is largest in the axial center and smallest at the lateral edges.

Abstract: An apparatus for mounting a printing sleeve on a press cylinder includes an inherently stiff annular holding element having an inner shape which is matched to the outer shape of the sleeve, and mutually facing ends defining a slit having a width. At least one clamp urges the ends toward each other to form a butt joint, so that the holding element can clamp the sleeve with a clamping force which is limited by the width of the slit. A device is provided for expanding the holding element so that the clamping force on the sleeve can be released.

Abstract: A state information system for acquiring measured values of chemical and/or physical variables during the production, processing or finishing of a material, in particular in the case of a printing material web in a web-fed press, includes at least one sensor for recording the chemical and/or physical variables, the state information system being provided on or in the material such that the operating process carried out with the material remains unaffected by it.

Abstract: An aligning apparatus for heavy loads, in particular a printing unit, includes at least one support plate, which is rotatably mounted on a base plate screwed to an erection surface and can be positioned on the base plate with regard to its horizontal position by means of adjusting screws. Each support plate interacts with a vertical adjusting screw which is provided for adjusting the vertical position of the printing unit and can be fixed to the printing unit, each vertical adjusting screw being designed with a spherical end which is supported on the plate in a spherical recess designed with little play or as a locating fit.

Abstract: Apparatus for preventing the cylinder drive wheels of the transfer cylinders jamming against one another during setting and throwing-off movements includes a transfer cylinder having cylinder drive wheel which engages the drive wheels of a forme cylinder and of an impression cylinder in the thrown-on position. A linkage is connected to the transfer cylinder to be moved into the thrown-off position so that synchronously with the pivoting of the transfer cylinder to be thrown off, a counter-rotation of the transfer cylinder is produced a gear-wheel chain which meshes with the drive gear wheels of the forme cylinder and of the impression cylinder.

Abstract: In order to manufacture a cylinder of a rotary printing machine cost-effectively, its cylinder body is assembled from a cylinder casing and a first and second side part located at the ends of the cylinder casing, one and the same first and second side part being capable of being completed in order to produce different cylinders casings of different outside diameters.

Abstract: A blanket cylinder has a rotational axis and a concave surface, concentric to the axis and extending over a printing width of the cylinder, for receiving a flat rubber blanket made of elastically deformable material. The cylinder has a recess concentric to the axis, extending over the printing width, and a film fitted in the recess The film has an outside surface which forms the concave surface of the blanket cylinder.

Abstract: An automatically controlled cleaning system has a cleaning fluid reservoir with a feed of the cleaning fluid to the rotating bodies to be cleaned via a cleaning element for each body. Its serviceability can be monitored, in particular erroneously exceeding the critical quantity of cleaning agent per unit time during the cleaning of the rotating bodies of the press can be detected and countermeasures can be initiated, by constructing the cleaning reservoir as a pressure container which can be pressurized from a compressed-air source via an electronically drivable changeover valve V1, and by implementing each feed of the cleaning fluid to the rotating body by means of a fluid feed line in which there are installed at least one electronically driveable changeover valve V4 that controls the flow, and at least one further electronically driveable changeover valve V5 which controls the expulsion quantities and expulsion times of the cleaning fluid.

Abstract: The image subject to be transferred is applied in preformatted form to at least two printing formes in the form of segment-like image data in a row and column arrangement, in such a way that a first portion of information from each segment of the image subject (information (a) with appropriate index features) is provided on a first printing forme, and a second portion of information from the corresponding segment of the image subject (information (b) with appropriate index features) is provided on a second printing forme. As a result of synchronous rolling of the printing-forme cylinders, the portions of information are assembled to form complete information (<a,b> with the respectively combined index features) for each segment of the image subject on the printed page.

Abstract: A rubber cylinder sleeve has a rubber covering with a layer construction which comprises, at a distance from the outer surface, compressible layer elements (3) and layer elements which influence the elasticity (S), such as filaments/yarns or fabric structures. The layer elements which influence the elasticity (S), are incorporated uniformly in the circumferential direction but are incorporated in a manner prestrained to various degrees in a defined manner in the direction of the sleeve axis, so that an elasticity profile is produced across the sleeve width, which profile is designed to be symmetrical with respect to the center of the sleeve width.

Abstract: A positioning device for functional devices of printing presses, having at least one guide unit and one drive for moving and positioning the functional device for throwing-on/throwing-off movements with regard to impression cylinders. Weight compensation means are provided for the vertical displacement, so that the drive can be at least partially relieved of the weight of the functional device.

Abstract: A method of producing a printing plate on a cylindrical printing-plate carrier in a rotary printing press uses a digital imagesetting unit and a raster image processor. The method includes subdividing the printing-plate carrier by computation in terms of its width and axial length into at least two circumferential subareas. Then an actual transfer characteristic curve for each subarea is determined and each actual transfer characteristic curve is compared by computation with a predetermined desired printing characteristic curve to find a deviation of the actual transfer characteristic curve from the desired characteristic curve of each subarea.

Abstract: The folder superstructure is provided with a copy diverter for dividing up a product stream of individual copies. The copy diverter includes at least one rotating disc deflector and a tongue, arranged at a location where the product stream branches into two sub-streams. It is assigned at least one first belt conveying apparatus, which is arranged upstream of the tongue, as seen in the direction of the product stream, and at least one second belt conveying apparatus which is arranged in the region of the tongue. The rotating disc deflector has a plurality of disk segments arranged axially one behind the other on a spindle running transversely to the product stream. In order to set different deflecting positions, the disk segments can be fixed in different circumferential positions.

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 sheet guide apparatus for use in a rotary printing press which is adapted for the smear and mark free transfer of sheets between two sheet holding and transfer systems, such as a pair of sheet-carrying cylinders or a sheet-carrying cylinder and circulating sheet conveyor. The sheet guide apparatus includes a sheet guide having a guide surface disposed beneath the transfer area, and a pneumatic system for blowing a positive pressure air stream in the direction of a transfer area or tangent point between the sheet holding and transfer systems. A further pneumatic system optionally may be provided for drawing or blowing air through apertures in the guide surface.