Abstract: A surface, especially a galvanically molded transport cylinder sleeve, has a surface structure for contacting printing material, in particular sheets of paper. The surface structure includes first structural elevations spaced apart from each other by a minimum distance A1 and having a height B1 and second structural elevations spaced apart from each other by a minimum distance A2 and having a height B2 with B2<B1. A ratio between the distances A1 and A2 ranges between 10:1 and 1:1. The surface has support areas for supporting the printing material. The printing material is prevented from contacting a planar horizontal surface between the support areas of first, higher structural elevations due to second, lower structural elevations with support areas thereof that are formed between the first, higher structural elevations. A machine for processing printing material and a method for producing areas with a surface structure, are also provided.

Abstract: A printing unit of a printing material processing machine, preferably a sheetfed offset printing press, includes a form cylinder and an impression cylinder. The form cylinder has a printing form for applying printed information to the printing material and the impression cylinder has a microstructured surface, preferably a cover, contacting the printing material. A surface of the impression cylinder contacting the printing material is provided with micro-embossed structures for applying embossed information to the printing material. The printing material is printed and embossed simultaneously. A security feature and/or a change in gloss can be implemented on the printed product through the use of the embossed, preferably micro-embossed, information.

Abstract: A surface, especially a galvanically molded transport cylinder sleeve, has a surface structure for contacting printing material, in particular sheets of paper. The surface structure includes first structural elevations spaced apart from each other by a minimum distance A1 and having a height B1 and second structural elevations spaced apart from each other by a minimum distance A2 and having a height B2 with B2<B1. A ratio between the distances A1 and A2 ranges between 10:1 and 1:1. The surface has support areas for supporting the printing material. The printing material is prevented from contacting a planar horizontal surface between the support areas of first, higher structural elevations due to second, lower structural elevations with support areas thereof that are formed between the first, higher structural elevations. A machine for processing printing material and a method for producing areas with a surface structure, are also provided.

Abstract: A printing unit of a printing material processing machine, preferably a sheetfed offset printing press, includes a form cylinder and an impression cylinder. The form cylinder has a printing form for applying printed information to the printing material and the impression cylinder has a microstructured surface, preferably a cover, contacting the printing material. A surface of the impression cylinder contacting the printing material is provided with micro-embossed structures for applying embossed information to the printing material. The printing material is printed and embossed simultaneously. A security feature and/or a change in gloss can be implemented on the printed product through the use of the embossed, preferably micro-embossed, information.

Abstract: A drive for a rotary printing press has a clutch with improved reliability in the main drive gear train. The drive has a gearwheel mechanism for transmitting a rotational movement of transfer drums during delivery of a printing material. The gearwheel mechanism includes a gearwheel pair with a driving gearwheel and a driven gearwheel and the driven gearwheel, which is arranged coaxially with respect to the driving gearwheel, is coupled during delivery to a shaft journal of a transfer drum. A clutch is provided for selectively producing and interrupting the transmission of torque between the driving gearwheel and the driven gearwheel. At least one motor is provided for feeding a torque into the gearwheel mechanism. A stepup gear mechanism is arranged in the torque flow between a clutch half of the clutch and a gearwheel.

Abstract: A drive for a rotary printing press makes a reliable transmission of high torques possible and, with low structural expenditure, setting of the phase in the main drive gear train. In the drive for a rotary printing press, two adjacent transfer drums are mounted with shaft journals in side walls, a gearwheel of the gearwheel mechanism is disposed fixedly in terms of rotation on the shaft journals and the gearwheels are not in direct engagement with one another. The gearwheels of the adjacent transfer drums are permanently in engagement in each case with one intermediate gear. The gearwheels of the adjacent transfer drums and the intermediate gears are kept at a spacing from one another in each case with one lever. The intermediate gears are kept at a spacing in each case from one another with a coupler. The coupler can be disconnected and the engagement of the teeth of the intermediate gears can be canceled.

Abstract: In a method for producing an air restrictor, use is made of at least one liquid or tacky substance to join perforated plates to one another and to seal the air restrictor. The substance can be, for example, an adhesive contained in capsules. The adhesive is liberated by bursting the capsules inserted between the perforated plates.

Abstract: A method of aligning a rubber blanket formed with register cut-outs, relative to a clamping device having register pins, for clamping the rubber blanket onto a cylinder, includes bringing the register cut-outs formed in the rubber cylinder into contact with the register pins of the clamping device when the clamping device has been applied to the cylinder.

Abstract: A sheet-fed printing machine made up of units in an in-line construction includes a sheet-feeding unit disposed between a sheet separating unit and a sheet processing unit following the sheet separating unit. The sheet feeding unit is formed so that it is selectively pre-arrangeable upline from various types of sheet processing units for creating various types of sheet-fed printing machines of a building block system.

Abstract: A device for selectively positioning at least one cylinder in a printing machine, the cylinder being rotatably mounted in a carrier and, together with the carrier, forming a unit that is adjustable into different positions, includes a guide, and a drive for adjusting one of the unit and the carrier, respectively, along a first direction of motion and placing it on the guide for guidingly adjusting it along a second direction of motion.

Abstract: A printing unit includes a rotatably mounted transport device for transporting a print carrier sheet in which the transport device is equipped with a holding device for holding a print carrier sheet. The printing unit includes a NIP printing head aligned with the transport device and intended for printing the print carrier sheet. The printing unit is distinguished in that the holding device is mounted to be adjustable into the interior of the transport device.

Abstract: A method for operating a printing machine having a positioning device with a cylinder that is adjustable into different positions along an adjustment path and cooperating with a cylinder for guiding printing material, which includes performing at least two of the following method steps of adjusting the rotational angle of the cylinder guiding the printing material into a given position; adjusting the rotational angle of the cylinder that is adjustable along the adjustment path into a given position; adjusting the circumferential register of the cylinder that is adjustable along the adjustment path; and adjusting the cylinder that is adjustable along the adjustment path, from a first cylinder position into a second cylinder position along the adjustment path.

Abstract: A printing-material sheet processing machine includes at least one processing unit with an impression cylinder and a tool-carrying cylinder bringable into contact with the impression cylinder, the tool-carrying cylinder having at least one tool selected from the group of tools consisting of respective deforming and separating tools for the printing-material sheets, the processing unit also having a circumferential-register adjusting device and a lateral-register adjusting device, which are assigned to the tool-carrying cylinder for adjusting the register thereof, and having a diagonal-register adjusting device assigned to a sheet transport cylinder for adjusting the register thereof, the sheet transport cylinder being disposed for transferring the printing-material sheets to the impression cylinder.

Abstract: A device for locking a carrier carrying a cylinder in a printing machine, the cylinder being rotatably mounted in the carrier, and a pivoting lever by which the carrier is lockable to a frame, includes a pivot bearing about which the locked pivoting lever is pivotable while the locking action is maintained; and a printing machine including the locking device.

Abstract: A device for cleaning a printing form for dry offset includes a cleaning roller settable onto and off the printing form, respective roller bearings for rotatably holding the cleaning roller at both ends thereof so that the cleaning roller is drivable, the roller bearings being displaceable perpendicularly to an axis of the cleaning roller, at least one lever joint, respectively, assigned to each of the roller bearings, and a rod operatively engageable with the lever joint for introducing a force into the lever joint.

Abstract: A device for ensuring correct tooth engagement during coupling of an adjustable, first gearwheel to a second gearwheel of a printing-material processing machine, includes a first adjustment device for adjusting the first gearwheel in a direction towards the second gearwheel during coupling, and further includes a protrusion and a guide for guiding the protrusion during the coupling, the protrusion being disposed eccentrically to one of the two gearwheels and being connected to the one gearwheel, so that, during rotation of the one gearwheel about a central axis thereof, the protrusion is rotatable together with the one gearwheel.

Abstract: A printing unit includes a rotatably mounted transport device for transporting a print carrier sheet in which the transport device is equipped with a holding device for holding a print carrier sheet. The printing unit includes a NIP printing head aligned with the transport device and intended for printing the print carrier sheet. The printing unit is distinguished in that the holding device is mounted to be adjustable into the interior of the transport device.

Abstract: A gear transmission for driving a printing press, with a plurality of gear pairs formed of mutually meshing gearwheels disposed operationally in a power-flow, at least one of the gear pairs being more heavily loaded than the rest thereof during operation, includes a case wherein the gearwheels forming the at least one, more heavily loaded gear pair are enclosed, the rest of the gear pairs being disposed outside the case.

Abstract: A method for operating a printing machine having a positioning device with a cylinder that is adjustable into different positions along an adjustment path and cooperating with a cylinder for guiding printing material, which includes performing at least two of the following method steps of adjusting the rotational angle of the cylinder guiding the printing material into a given position; adjusting the rotational angle of the cylinder that is adjustable along the adjustment path into a given position; adjusting the circumferential register of the cylinder that is adjustable along the adjustment path; and adjusting the cylinder that is adjustable along the adjustment path, from a first cylinder position into a second cylinder position along the adjustment path.

Abstract: A device for selectively positioning at least one cylinder in a printing machine, the cylinder being rotatably mounted in a carrier and, together with the carrier, forming a unit that is adjustable into different positions, includes a pull mechanism drive for adjusting one of the cylinder and the unit into the different positions, the pull mechanism drive including a pull mechanism, the unit being held on and suspended from the pull mechanism.