Abstract: A controllable actuator for stopping and positioning a signature in a high speed printing press including a electric magnet or a solenoid and a break or a roller or both. Various arrangements of a plurality of such actuators can be used to orient, center, and steer signatures in a high speed printing press.

Abstract: Device for connecting retaining elements and a crosspiece on a printing-form cylinder of a rotary printing press for fixing a flexible printing form to the circumference of the printing-form cylinder, a front edge of the flexible printing form being able to straddle a front edge of a gap formed in the cylinder, and a rear edge of the flexible printing form being fixable by at least one resilient retaining element mountable actuatably on the crosspiece and having a hook-shaped projection at an end thereof directed towards the circumferential surface of the printing form, includes a plurality of the retaining elements mountable alongside one another, and stop elements for form-lockingly locking the retaining elements on the crosspiece.

Abstract: An apparatus for splitting a product stream includes a conveying belt entering a folder to grip products. The conveying belt comprises first and second product grippers arranged thereon in an endless configuration. The first grippers are selectively rotatable around an axis during movement of the conveying belt to allow for a secondary stream of products to be formed.

Abstract: Device for fixing a flexible printing form on a form cylinder of a printing press, the form cylinder having at least one axially extending slit formed therein, and at least one leaf-shaped element disposed in the slit, the leaf-shaped element having a rounded end portion for securing a bent portion of a flexible form, includes a tubular support wherein the leaf-shaped element is disposed so as to form a fastening element, the tubular support accommodating an actuating member capable of resiliently deforming the fastening element.

Abstract: The present invention is related to an apparatus for delivering flat products, such as signatures, in a folding apparatus of a rotary printing press. At least one fan wheel assembly has a plurality of fan blades separated from each other by fan wheel pockets. The fan wheel pockets are defined by surfaces of the fan blades. A first surface of each fan wheel pocket is configured to cause the signature to take on an energy dissipating state.

Abstract: Doctor blade for an offset rotary printing press having an inking unit with an ink duct wherein the ductor blade is provided for, respectively, scraping ink from an ink duct roller and zonally metering an ink film layer thereon over the width of a web of printing material includes a ceramic coating disposed on an edge portion of the blade at a region thereof at which the ink duct roller is in contact therewith.

Abstract: An apparatus for delivery of sheet-like products is provided which includes a reorientating conveyer 14 coupled to deceleration unit 6, the deceleration unit 6 for receiving signatures 5 from a product forming device such as a folding or a cutting cylinder. The deceleration unit 6 slows down the signatures 5 from a single spaced configuration to an overlapped shingled configuration. The reorientation conveyer 14 grips signatures in an overlapped shingled configuration with grippers 17, the grippers 17 having a pitch 16. Since the deceleration unit 6 does not release the signatures 5 until after the grippers 17 are engaged, control over the signatures is maintained during the transfer. In the reorientation conveyer 14, the grippers 17 rotate the signatures into a spine leading formation while maintaining control over the signatures 5.

Abstract: An apparatus for transporting web material, such as a folded paper web in a web-fed rotary printing press, is disclosed which includes a first nip roller having a first set of driven and non-driven wheels which are arranged side by side along a rotational axis of the first nip roller, and a second nip roller having a second set of driven and non-driven wheels arranged side by side along the rotational axis of the second nip roller. The wheels of the first and second nip rollers are arranged such that the driven wheels of the first roller are facing the non-driven wheels of the second roller, thereby forming a nip for receiving and conveying the material web.

Abstract: A gripper device for two-dimensional products on guiding cylinders for the products, the guiding cylinders having respective end faces at which the guiding cylinders are supported in respective side frames, the gripper device including grippers disposed on a driven gripper shaft and cooperatively engageable with gripper pads of a radially movable gripper impact strip, a stop mounted on the driven gripper shaft, the stop being supported on and movable with the gripper impact strip, the products to be accepted being alignable between the gripper fingers, on the one hand, and the gripper impact strip, on the other hand, at the start of a closed stage of the gripper fingers.

Abstract: A method and for mounting a flat printing plate on a cantilevered plate cylinder of a printing press, particularly in a lithographic web-fed rotary printing press. The printing plate is bent into an essentially cylindrical shape and inserted into a hollow tube. The tube and plate are slid from the side over a mandrel mounted on the plate cylinder. The mandrel expands the printing plate to a condition where the mandrel has an outer diameter which is smaller than the inner diameter of the tube and which is larger than the outer diameter of the plate cylinder. The tube and printing plate are slid down the length of the plate cylinder, and the ends of the plate are then locked using a lock-up device. The tube is then removed from the plate cylinder. Air bearings may be used on the mandrel or the plate cylinder, and the mandrel may be expandable.

Abstract: Folding apparatus having a main folder and an associated auxiliary cutting module for cutting into copies at least one longitudinally folded strip or web section originating from a web coming from a rotary printing press, the auxiliary cutting module having an inlet thereto for the at least one strip, and an outlet therefrom for respective copies cut from the at least one strip, the inlet and the outlet defining therebetween a straight travel path for the at least one strip and the copies cut therefrom, respectively, and a cutting cylinder having two angularly offset knives, and a counter-cutting cylinder, respectively, disposed on opposite sides of the straight travel path and of the at least one strip traveling thereon, the cutting cylinder and the counter-cutting cylinder, respectively, cooperating with one another for performing two successive cutting operations in one revolution of the cylinders.

Abstract: Device for cleaning cylinder bearers of rotary printing-unit cylinders having cylinder bearers mounted at respective end faces of at least two of the cylinders for attaining a defined spacing between respective axes of the two cylinders, the cylinder bearers being rotatable with the two cylinders, respectively, and being rollable on one another while being in continuous contact with one another, includes at least one cleaning element movable into engagement with a bearing surface of one of the cylinder bearers, respectively, by a pressure medium, and movable away from the bearing surface, the cleaning element being impregnatable with a fluid.

Abstract: Device for changing printing forms on cylinders of printing presses, including a swivelable printing-form loading unit having respective compartments for feeding and for removing printing forms, the loading unit being swivelable into an operating position at a gap formed in a printing-form cylinder equipped with clamping devices, and into a loading position wherein the loading unit is retracted from the operating position thereof, further includes a holding element having an insertion region for a printing form to be removed from the printing-form cylinder, and devices for transporting a printing form to be fed onto the printing-form cylinder, the printing-form loading unit being swivelable into a vertical loading position thereof at the holding element.

Abstract: A diverter mechanism for signatures in a folding apparatus is provided including a set of high-speed tapes (3) for conveying signatures in a conveying plane (1) toward delivery stations (12, 13). Rotating diverting elements (7.1, 7.2) are integrated into the path of the high speed tapes (3). Each of the diverting elements (7.1, 7.2) has at least two rotatably mounted guiding surfaces (10) that alter the diverting direction of signatures upon rotation of the diverting elements (7.1, 7.2).

Abstract: A printing unit for rotary printing press includes an inking unit and a print cylinder carrying a print form suitable for the reception of water based inks. The printing unit also includes a blanket cylinder carrying a printing blanket and a cooling unit for maintaining an ink carrying surface of one or more of the print form, the printing blanket, and the inking unit at a predetermined temperature which is suitable for printing with water-based inks.

Abstract: Device for delivering printed products from a fan arrangement for forming a shingled printed-product stream, the device including an endless chain having a revolving path coordinated with the fan arrangement, so that the chain continually pushes, out of pockets of the fan arrangement, printed products received in the pockets, for forming the shingled printed-product stream, further including a holding arrangement for holding the printed products in the pockets, the holding arrangement being formed of grippers disposed on the chain.

Abstract: Device for transporting copies inside a folder which is equipped with at least one cutting cylinder for cutting individual copies from a web, the copies being transportable from the cutting cylinder to at least one copy-guiding component, and groups of tapes for transporting the copies being associated with the cutting cylinder and the copy-guiding component, includes deflector members for the groups of tapes and the at least one copy-guiding component, the deflector members having opposite ends at which the deflector members are supportingly engaged, and adjusting members for disengaging one of the ends of the respective deflector members.

Abstract: A printing plate has an outer surface and an inner surface, the outer surface for receiving an image to be transferred to a printing blanket. The printing plate also includes a lead end and a tail end. A first bend and a second bend are formed at a first distance from the lead end of the printing plate, and a third bend is formed at a second distance from the lead end. A recessed portion is thereby formed between the second bend and the third bend, and an angular end portion is formed between the third bend and the lead end. The tail end of the printing plate is bonded to the recessed portion with an adhesive. In order to install the printing plate on the plate cylinder, the source of pressurized fluid is engaged to supply pressurized fluid, e.g. air, through the apertures of the plate cylinder. A press operator mounts an end of the printing plate onto the plate cylinder, aligning the angular end portion of the printing plate with the slot in the plate cylinder.

Abstract: A folder apparatus includes at least one lead-in mechanism, having a left lead-in tape and a left exit roller and a corresponding right lead-in tape and a right exit roller, the right and left lead-in tapes forming a signature passage for delivery of signatures. The right exit rollers rotate about a first axis, the left exit rollers rotate about a second axis. Spring means are assigned to at least on of the lead-in tapes above the corresponding lead-in tape rollers for biasing the tapes.

Abstract: A printing unit (10) includes a blanket cylinder (20), a bearing assembly (56) and a door assembly (72). The blanket cylinder (20) carries a tubular printing blanket (36). The bearing assembly (56) includes a bearing housing (58) fixed to the stub shaft (50) on the end of the blanket cylinder (20). The door assembly (72) includes a door (82) which is supported for pivotal movement on a frame wall (22) of the printing unit (10). The door (82) has a closed position in which it extends across an opening (76) in the frame wall (22), and an open position in which it does not extend across the opening (76) in the frame wall (22). A clamping assembly clamps the bearing housing (58) on the door (82) when the blanket cylinder (20) rotates during a printing operation. The clamping assembly includes a first clamp (100) which fixed to the door (82) and a second clamp (102) which is supported on the door (82) for movement relative to the first clamp (100).