Abstract: A reversible printing unit is equipped with a central distributing roller (9), with which a first transfer cylinder (8) and a second transfer cylinder (12) can be engaged or disengaged independently from one another. A respective dampening mechanism (10) and (24) is associated with each of the transfer cylinders (8) and (12). Depending on the direction of rotation or the mode of operation of the printing unit, the transfer cylinders (8) or (12) and the rollers following them act as dampening rollers or inking rollers. Modes of operation with indirect dampening, pre-inking of the inking mechanism with feed of dampening agent, and rapid and thorough washing of the rollers of the inking and dampening mechanism are also possible due to the independent adjustment of the respective transfer cylinders (8) and (12).

Abstract: Process for feeding paper rolls for supplying web-fed rotary presses with paper rolls and for disposing of remnants from web-fed rotary presses, comprising a control system, which stores data on the location and the type of all paper rolls and disposal containers at any point in time. The system is designed to be so redundant such that partially manual or completely manual operation is possible in the case of failure of one or several components, as a result of which printing of the jeopardized publication is possible even in case of emergency, and the safety and ergonomic aspects are also not neglected even in an emergency situation.

Abstract: A delivery paddle wheel (1) for delivering printed products (6) in an imbricated pattern is associated with a shaft (8) with cam plates (9) mounted on the shaft (8) and cams (10) mounted on the cam plates (9), which are in operative connection with rollers (22). The shaft (8) is arranged mounted on levers (7) pivotable around the axis (2) of the delivery paddle wheel (1). The cams (10) of the cam plate (9) catch the printed products (6) arriving in the delivery paddle wheel (1) at their trailing end (26) and decelerate them. The setting of the cam plates (9) for printed products (6) with different lengths is performed by swiveling the levers (7). The shaft (8) is driven by a drive member (17), which is arranged on a rocking lever (13) that can be pivoted around shaft (8) and is guided by longitudinal guides (18) in the radial direction relative to the delivery paddle wheel (1).

Abstract: A collecting cylinder for point folders of rotary machines, the circumferential surface of which consists of a number circumferential segments (5), which are next to one another in the direction of the cylinder axis but some distance apart, extend in the circumference in each case groupwise from point holes to point holes and are supported at one of two ends on bearings on eccentric shafts (6) and the radial interval of which can jointly be changed nonpositively. At least one eccentric shaft (6) of each circumferential segment group (5') is supported on bearings in the collecting cylinder so that it can be swung out radially and each eccentric shaft (6) is connected by means of an adjusting lever (10) and a connecting rod (11) with an adjusting disk (12), which is rotatably supported on bearings centrically to the collecting cylinder (1).

Abstract: A print copy folding device arrangement including a folding blade drum, a first folding roller, a second folding roller and a conveyor belt arrangement. The folding rollers include a first peripheral area segment having a surface extending about a first circumferential portion of said first roller, spaced from a central rotational axis a distance r.sub.1 and a second peripheral area segment including a recessed peripheral surface, the recessed peripheral surface being spaced from the central rotational axis a distance r2 wherein r.sub.1 >r.sub.2 and having residual peripheral surfaces disposed at each side of the recess peripheral surface. The residual peripheral surfaces are spaced from the central rotational axis the distance r.sub.1. A third peripheral area segment is provided extending about a third circumferential portion of rollers. The third peripheral area is provided with a recessed surface spaced from the central rotational axis the distance r.sub.2.

Abstract: The inking device of a printing machine is composed of an inking roller, providing an elastic surface, the inking roller producing a pre-dosed ink layer on the inking rollers. A dosing strip wipes off the pre-dosed ink layer and leaves the quantity necessary for the transfer onto a stereo cylinder, the wiped off excess ink running off freely. For self-cleaning purposes, the dosing strip carries out a movement preferably in the direction of the circumference of the inking roller, so that the area forming the dosing slot which is in contact with the inking roller is continuously modified.

Abstract: A traveling platform unit which is movable in the horizontal direction, for loading and unloading a printing paper on a roll stand. The roll stand has swivel arms and is part of a web-fed rotary printing press which uses the printing paper rolls. The traveling platform is equipped with lifting elements acting together in pairs, which permit aligning of the paper rolls with a paper roll bearing axle of the roll stand while allowing paper rolls of different diameters and widths to be brought for clamping between pairs of the swivel arms of the roll stand or to be removed from the swivel arms of the roll stand.

Abstract: For the drawing in of material webs in web-fed rotary presses a driven draw-in element is used which has a finite length extent and which is moved along different, preadjustable draw-in paths. Guides are disposed along the draw-in paths which provide interruptions which improve the accessibility of the printing units of the presses. For the passage through these guideless regions the draw-in element is stiffened.

Abstract: The impact speed of a printed product which is delivered at a rapid rate into a pocket of a rotatable flywheel is reduced by engaging the printed product as it is propelled into the flywheel pocket adjacent its trailing edge. The invention includes a fly delivery wheel which may comprise a plurality of individual flywheel elements each having a plurality of flywheel pockets distributed around its circumference. The flywheel pockets open radially and as the openings of each pocket are moved around during the rotation of the flywheel the printed product is delivered into the opening and it moves at high impact speed into the pocket space. A cam is rotatably mounted adjacent the flywheel and adjacent a ring which is carried on a rotatable shaft and the printed products are delivered between the rotatable cam plate and the ring and into the pocket. The cam plate advantageously includes one or more cams having tips with elastic portions which move during rotation of the cam into close contact with the rings.

Abstract: To be able to produce an accurate second lengthwise fold on printed copies delivered by a web-fed rotary printing press, a second group of folding cylinders is provided downstream of a first group of folding cylinders, with the axes of all cylinders of both groups being parallel to each other. A conveying mechanism is provided between the two cylinder groups, which is equipped with turning devices by which the printed copies transferred from the first cylinder group by means of strip lines are nipped and turned through 90.degree.. Further strip lines are provided for transferring the turned copies to the second group line of folding cylinders.

Abstract: A metering blade for zonally metering a liquid film comprises a plate body having a working edge usable in an arrangement in which the setting member bears against the plate body and bridges a portion thereof against a rotating roller comprises a blade with a plurality of zonal setting portions of a material capable of being displaced by resilient flection adapted to be arranged adjacent a setting member which includes intermediate portions between a working edge and the opposite edge compensating for the setting wherein the setting portions are at least 3 mm in thickness and each intermediate portion includes a web part having a thickness which is not more than 1/5th the thickness of the setting portion and has a width amounting to at least five times the thickness of the web. The blade has a working edge with a reinforcement adjacent each web.

Abstract: Each individual, freely rotatable ring of a spiral-type ductor is mounted on an eccentric which is supported for rotation on a multi-eccentric shaft is angularly offset relative to its adjacent eccentric portion by at least an amount corresponding to the number of rings. The multi-eccentric shaft is connected to the drive of an inking system directly while the eccentric is connected thereto through a pinion, a pinion shaft, a gear and a separate sequential transmission with an integral speed ratio. In consequence, the center of the ring describes a curve which is flattened in the zone where the ring is in contact with an inking roller. The contact duration is thereby extended without varying the speed.

Abstract: In a photogravure rotary machine, each side of the form cylinder is mounted in a bearing housing, which is secured in a saddle portion of a carriage provided with a sleeve drive. The carriage is displaceably mounted on a guide secured on a machine wall and which carries a pivotally mounted retaining fork for the bearing housing. A locking mechanism is provided for locking the carriage in its operating positon, which is in an operative connection with a switching element that is electrically connected to a machine control. In the range of the extended position of the carriage is arranged an incline with a hinged return feed ratchet for lifting the form cylinder on the machine wall.

Abstract: An apparatus for cyclically decelerating and accelerating a ductor roller which has a journal which is mounted on a swing arm for rotation on the arm and is moved with the arm to selectively and alternatively engage the ductor roller with a first roller, such as a fountain roller and a second roller, such as a first roller of a printing press, is employed in inking and damping units of such presses. The apparatus includes a bearing head of the spring arm which provides a rotatable mounting for the journal of the ductor roller and the arrangement includes a planetary gear system connected to the journal and to a free wheel element with a controllable brake acting between the planetary gear system and the bearing head of the swing arm in an arrangement which permits the free wheel element to rotate after the braking system has been engaged to cause the winding or tensioning of a spring, such as a spiral spring, which is disposed between the free wheel element and the journal of the ductor roller.

Abstract: In a folding apparatus for a rotary printing press having a form cylinder with four or six etchings, with a folding cylinder having a plurality of spaced fastening devices on the circumference thereof and a collecting cylinder associated with the folding cylinder with folding blades, grippers or point group cassettes thereon, the improvement comprising, the fastening devices being divided into two groups, each with a number of fastening devices, with the ratio of the number of the fastening devices in each group being a mixed number. Each fastening device is provided with a cam follower and a cam wheel is positioned within the folding cylinder with cams thereon for selectively rendering the folding devices of one of the groups inoperative.

Abstract: Apparatus for forming a succession of mutually overlapping products, like folded printed products: a vane wheel having a plurality of axially spaced apart vane discs; a respective chain extending between two neighboring discs; a set of item grippers along each chain; each chain passes between a sprocket located between the discs and a sprocket spaced away therefrom; the sprocket between two discs is eccentric of the discs and is supported on an arm which pivots with respect to the axis of the discs; each sprocket includes cams for opening each gripper as the gripper moves past, whereby each gripper grips a printed item as it leaves the vane wheel, carries the respective printed item to a transport so that the printed items are overlapped on the transport, and then releases the printed item.

Abstract: In a printing press adapted to print different size paper, after the imprinting, the paper passes rotatable cutting rollers whose rotative phase position is invariable; the paper next passes a folding knife cylinder and a coaxial gripper cylinder; the gripper cylinder has cam controlled fingers thereon; cams control these fingers; the rotative phase positions of the folding cylinder, the gripping cylinder and the gripper finger control cams are adjustable through respective control gearing for each of them and with respect to the invariable phase position of the cutting rollers; there is a rigid drive connection to the control gearing for each of the phase adjustable parts for jointly readjusting their phase positions for different size paper; individual calibrating adjustments disengageably connect each phase adjustable part from the rigid drive for individual corrections.

Abstract: A cutting device for a folding apparatus of a rotary printing machine: a folding cylinder which delivers printed product to folding rollers, a cutting cylinder having means to cut the printed product and means to press the printed product against the folding cylinder until the time for release of the printed product; means for moving the axis of the cutting cylinder around the axis of the folding cylinder thereby to adjust the release point of the means that presses the product against the folding cylinder.

Abstract: A rotary printing press assembly having a plurality of serially arranged printing units includes a chain conveyor apparatus for sequentially continuously moving a material web through the successive printing units of the assembly. The forward end of the material web to be passed through the assembly is looped about a lead-in bar which is then engaged by a chain conveyor in order to pass the web through the printing units. A pivoted pawl engaging mechanism fixed to the chain conveyor locks in engagement with a recessed cam surface of the lead-in bars while a locking bolt enters a bore in the lead-in bar to effect driving engagement between the lead-in bar and the conveyor chain. When the lead-in bar has passed through a printing unit the driving pawl is automatically disengaged from the conveyor chain of the printing unit, and for lead-in bar is transferred into engagement with the conveyor chain of a next printing unit.

Abstract: In a rotary printing machine, the cylinder for holding the printing plate has a printing plate tensioning device formed in it, which includes an adjustably positionable tensioning rail. To adjust this rail, a set of marks is formed on the cylinder. A support base carries an optical device to view the marks. On the base there are tensioning rail engaging adjustably positionable abutments and the alignment of the marks in the field of view of the optical device enables proper positioning of the abutments and of the tensioning rail.