Abstract: There is described a printing press (1; 1*; 1**) comprising an ink-receiving cylinder (9; 8) receiving ink from an inking system (90-93, 90*, 93*; 95-99, 95*, 99*; 100-104, 100*, 104*) having a plurality of ink-applying cylinders or rollers (93, 93*; 99, 99*; 104, 104*) arranged one above the other around part of a circumference of the ink-receiving cylinder (9; 8), the ink-applying cylinders or rollers (93, 93*; 99, 99*; 104, 104*) being inked by a corresponding plurality of inking devices (90, 90*; 95, 95*; 100, 100*), the printing press (1; 1*; 1**) further comprising an inking carriage (52; 55; 57) supporting the plurality of inking devices (90, 90*; 95, 95*; 100, 100*), which inking carriage (52; 55; 57) can be moved with respect to the ink-receiving cylinder (9; 8) between a working position and a retracted position.

Abstract: A cylinder, which is part of an inking system or of a dampening system, has a rotary individual drive which is embodied as a drive motor. A changeable drive is also provided. The rotary drive is driven by the drive motors by a bevel or angular gear.

Abstract: An inking unit for a rotary printing machine includes an ink fountain, a pivotable ink fountain holder in which the ink fountain is mounted, an ink ductor, and a pivotable ink ductor holder in which the ink ductor is mounted. The ink ductor holder and the ink fountain holder are connected by an operating cylinder so that ductor and the ink fountain can be pivoted jointly to a first position in which ink flows out of the ductor without flowing out of the fountain, and so that the ductor can be pivoted away from the first position to a second position while the ink fountain remains in the first position, thereby creating a gap between the ductor and the ink fountain.

Abstract: Method of influencing ink-trapping behavior of ink-conducting components of a printing unit in a rotary printing press includes disconnecting at a clutch location an inking-unit drive coming from printing-unit cylinders, directly imaging a printing form on a printing-form cylinder within the rotary printing press, and reestablishing the drive connection between the inking unit and the printing-unit cylinders at the clutch location after completing the direct imaging of the printing form; and device for performing the method.

Abstract: In a rotary printing machine, a device for the print setting of a printing cylinder equipped with a slip-on sleeve. The printing cylinder is supported in a bearing to which an eccentric bushing is secured for reciprocating the printing cylinder between print engagement and disengagement positions. The device includes a coupling rod secured to the eccentric bushing for reciprocating the latter, and the coupling rod is joined to the eccentric bushing by a separable joint such that the coupling rod may be swung out of the area of the frame opening to accommodate changing of the sleeve without removing the printing cylinder from the printing machine.

Abstract: An apparatus for adjusting the impression of an impression cylinder, equipped with a tube that can be slipped on, in a rotary press, the mounting of which apparatus has an eccentric bush equipped with a gearing, which is engaged in the operating state by an eccentric adjustment, which can be shifted out of the region of an opening enabling an exchange of tubes and is equipped with a gearing. A toothed quadrant, engaging the gearing of the eccentric bush, and a working cylinder, which is operated by a pressure medium and linked to the toothed quadrant, are pivotably connected with a rocking lever, which is mounted in the supporting frame and engaged by a two-membered driven toggle joint, which is pivotably connected at the other end with the supporting frame.

Abstract: In a rotary printing machine, there is provided a device for bringing a lacquering/inking cylinder into and out of engagement with at least one of a pair of cylinders including an impression cylinder, the lacquering/inking cylinder being mounted on a shaft, which includes a substantially circular ring turnably disposed on the shaft of the lacquering/inking cylinder, the ring being spring-biased towards two bracing stops and being formed with an indentation at a section of the circumference thereof, the ring being turnable on the shaft so as to move the indented section of the circumference thereof into a position opposite one of the bracing stops for bringing the lacquering/inking cylinder out of engagement with the impression cylinder, the ring being spring-biased in a direction towards the other of the pair of cylinders, the other of the bracing stops being disposed in an open angle formed by an intersection of a line connecting respective axes of the lacquering/inking cylinder and the impression cylinder a

Abstract: Disclosed is an ink supplying apparatus which can drive and rotate a fountain roller at an arbitrary speed independently of the peripheral speed of a roller adjacent to the fountain roller when an ink fountain is fitted to a rotary press, which does not require large-scale maintenance and inspection, which is free from any danger, and which is equipped with an ink fountain having a fountain roller capable of being fitted to and removed from a suitable position corresponding to a maximum printing width.

Abstract: This invention relates to an apparatus for displacing shaft-mounting bearing stands, which are secured to carriages, in carriage guides, preferably for displacing the bearing stands of plate cylinders and inking rollers of a printing unit in carriage tracks of the inking unit supports of a multicolor rotary press, comprising screw drives, which are driven by electric motors. To solve the object to provide such an apparatus in which shafts and particularly plate cylinders and associated inking rollers can mutually independently be displaced relative to each other and, e.g., relative to an impression cylinder, the invention resides in that a screw that extends parallel to a single carriage track is rotatably mounted in the machine frame or on the inking unit support and is provided with a drive. A nut which is non-rotatably and axially immovably connected to a bearing stand or to a carriage is mounted on the screw.

Abstract: A dampening system for a printing press uses a dampening fluid spray system to apply dampening fluid to a first of several serially arranged transfer rollers. The dampening fluid is carried by these transfer rollers to a dampening forme roller and then to a plate cylinder. The surfaces of the dampening forme roller and the several transfer rollers after the first such transfer roller are oleophilic. Spaced levers adjustably support several of the transfer rollers and the dampening forme roller.

Abstract: This roll mounting assembly (10) for mounting a meter roll between opposed sideframes (12) includes a meter roll (20) and opposed mounting blocks (28) each receiving a journal end (22) of the meter roll (20). The mounting blocks (28) are pivotally mounted to associated sideframes (12) by retractable pivot pin assemblies (30) for swinging movement of the roll (20). Threadedly adjustable members (50) are pivotally mounted to the sideframes (12) and are engageable with the mounting blocks (28) to adjust the location of the mounting blocks (28), and therefore the meter roll (20), to swing the meter roll (20) into and out of engagement with an anilox roll (120).

Abstract: A flexographic printing machine has a printing block cylinder, an impression cylinder and a duct roller that is immersed in an ink trough. The printing block cylinder is rotatably supported by exchangeable bearing blocks that are removably secured to spaced support beds. Each support bed is mounted on an eccentric having a journal which is carried by side plates of the printing machine. The support beds are movable both horizontally and vertically to shift the printing block cylinder between various positions.

Abstract: A rotary printing machine has a plate cylinder and a liquid supply apparatus comprising an inker and a damper. The liquid supply apparatus includes rollers and an endless band guided over two deflection rollers. The band, which has a surface that accepts ink and damping fluid and extends over the width of the rollers, is provided with guide elements cooperating with counterpart guide elements attached to the machine. The guide elements and counterpart guide elements are embodied such that the band is displaceable at right angles to the axes of two rollers and is additionally pivotable at least about one of the axes of a deflection roller. Positioning means supported firmly on the machine are also provided for fixing the band in at least two different operating positions, in which the band is in contact with one or two rollers of the liquid supply apparatus.

Abstract: An object of the invention is to provide a method of metering to a printing plate (P). An applicator roller (312), which receives ink from a pick-up roller (310), is positioned in pressure indented relation with a metering roller (12). The surface speed of metering roller (12) is varied to meter the ink to roller apparatus which supplies the ink to printing plate (P).

Abstract: In a printing press, at least two inking arrangements are disposed relative to a plate cylinder so that one of the inking arrangements is moved toward the plate cylinder for application of ink onto the plate cylinder while the other is in a rest position.

Abstract: In a machine having a printing cycle, and including an inking mechanism, there is provided apparatus for controlling operation of the inking mechanism. The control apparatus comprises a latch including a manually operable switch, a pulse generator coupled to the latch and adapted to be enabled thereby to commence generating pulses in response to momentary operation of the switch, a counter for counting a predetermined number of pulses, instrumentalities for providing an inking enabling signal for a predetermined time interval during at least one of the printing cycles, a gate for gating the pulses to the counter during at least one of the aforesaid time intervals, and means for operating the inking mechanism during the time period the predetermined number of pulses are being counted.

Abstract: A printing press, comprises a plate cylinder, over which material to be printed is passed. An inking mechanism support member is located adjacent the plate member and a plurality of separate inking mechanisms are mounted on the support member and each includes an ink fountain, a fountain roller cooperatively associated with the ink fountain for picking up ink therefrom, a spreader roller cooperatively engageable with the fountain roller to pick up the ink therefrom, and an application roller positioned between the spreader roller and the plate cylinder for applying ink from the spreader roller to the material passed over the said plate cylinder. The individual ink mechanisms may be selectively positioned in an operative position with its application roller in cooperative engagement with the plate cylinder.

Abstract: A form roller compensator is provided for use in mounting a printing form roller in a publication printing apparatus in proper orientation relative to a printing cylinder. The form rollers in a printing machine control the amount of ink transferred to the printing surfaces of a printing cylinder for printing alphabetic and numerical characters and pictorial illustrations. The invention allows the amount of ink transferred by printing form rollers to be varied to compensate for the inordinately heavy or light supply of ink which results from pressure variations of the form rollers against impression cylinders. These pressure variations are caused by thermal expansion or contraction of the various rotating cylinders involved.