Abstract: A web guiding system for a web-fed rotary printing press includes a web guide roller which contacts the printed surface of a print-carrying web. The effective diameter of the transfer cylinder which prints the print-carrying web is the same as, or is an integral multiple of the diameter of the web guide roller.

Abstract: A device for feeding web material to a printer that is adapted to accept web from an external roll, adequately align the web with the printer and properly tension the web as it passes through the printer. The infeed device includes a pair of parallel guide rods spaced sufficiently apart to allow passage of the web there between. A pair of edge guides, attached to the parallel guide rods define the web path there through. A spring-loaded pressure pad acts in combination with a smooth metal shoe to tension the web. Further tension is applied to the web as it passes a curved smooth metal surface, just prior to entering the printer. The infeed device allows a wide variety of web materials and web thicknesses to be tensioned and fed into the printer.

Abstract: A pair of calender rollers are placed before, in a direction of travel of a paper web or paper sheets to a first print unit in a printing device. The calendering rollers improve the quality of the paper web or sheets by rolling particles adhering to the web or sheets into the web or sheets. A paper web tensioning device can be placed between the calendering rollers and the first print unit.

Abstract: A device for automatically catching a torn material web running through a rotary printing machine includes a pair of clamping rollers, respectively, disposed beneath and above the material web, the rollers being rotatingly entrainable and being able to clamp the web when a web tear is detected, at least one of the clamping rollers having variable outer main dimensions, and an actuator connected to the at least one clamping roller for causing the outer main dimensions thereof to increase upon detection of a web tear, so as to clamp the torn material web between the clamping rollers.

Abstract: A device for processing of printing defects detected in a printing machine which in a first phase delivers a printed support. The printing defects (20, 21, 22) on the support (1) are detected in a detection station. A database connected to the detection station can simultaneously store information relating to each detected printing defect. The processing device connected to the database can, in a second phase, process the stored information in order to evaluate the quality of overall printing of the printed support and can use various possible scenarios, even before the support (1) is cut in a third phase, to define all those portions (23) of the support which should be removed in order to improve the final quality of the printed product within the limit of a restriction in the number of portions which it has been agreed to cut out.

Abstract: A roller for a rotary printing press drying assembly, comprising, near each printing unit, a drying assembly including a plurality of parallel rollers, each roller being circumferentially provided with a plurality of equispaced slots which are arranged parallel to the longitudinal axis of the cylinder.

Abstract: A device for guiding material webs (A through D; E through H) via an angle-bar deck (2), including a folding section that is arranged on a plurality of planes (3.1, 3.2, 3.3), from where the material webs (A through D), (E through H) enter folding apparatuses (4), (5). Accommodated on longitudinal folding devices (8), (9) are infeed elements (7), which have guide sections (13), (14) that are able to be operated independently of one another.

Abstract: A system and method for preventing a broken printing web from wrapping about or otherwise fouling the blanket cylinders of printing press units. The system and method includes a web tensioning device located downstream of the printing press units for maintaining tension upon a broken web and pulling the web from the printing press units. The device includes a plurality of web disturbance detectors for detecting a wave, ripple or other disturbance indicative of a web break. A pair of anti-wrap rollers located above and below the web are engaged upon detection of a web break to engage the web between them to exert tension onto the web and pull it from the printing units. The anti-wrap rollers are rotated at a surface speed nominally greater than the surface speed of the printing rolls. The anti-wrap rollers include a plurality of opposed peak and valley portions which enable them to interlock and grip the web along a line of contact.

Abstract: A device for infeeding a material web into a rotary printing machine includes an infeed element for receiving a material web start, the infeed element being introducible onto an introduction path extending at least approximately parallel to a path of the material web in the rotary printing machine. Also included are suspension stations at which the material web is connectable to the infeed element, the suspension stations being assigned to respective components of the rotary printing machine along the path of the material web through the rotary printing machine; and a web-processing rotary printing machine having a guide path for the infeed element.

Abstract: In a flexographic tag and label press, a mid-driven infeed tension controlling system is installed between the printing/drying section and the converting section of the press. By creating two separate tension zones, one for printing and one for converting, the mid-driven infeed tension controlling system improves color to color registration in steady state run tolerances, improves make ready times and waste factors, and improves the register of products upon the starts and stops of the press as well as facilitating roll changes and random material roll splices.

Abstract: Combined newsprint core brake system and newsprint supply reel in a continuous running roll press, for full and fractional running web supply, web tension sensor control braking coupled to core chucking spindles in the running newsprint roll core position, characterized by selectively activated Zero stroke multi caliper disc brakes carried by multi-armed spiders with core chucking spindles axially positioned and circumferentially spaced for indexing a chucking spindle axis from pre-drive to running newsprint roll core position; eliminating the prior art “transition period” replaced herein by “Constant Tension”, eliminating the prior art drag-belt deterioration of the newsprint surface texture; and with assurance of effective roll to roll splicing.

Abstract: A rotary printing press has a postprinting processing station where the printed web of paper, stretched out between two pairs of nip rollers, is slit longitudinally into a pair of web halves and where the web halves are subsequently superposed one upon the other. This station includes a tension roller for imparting tension to the web being slit, and a set of turnbars for causing a change in the traveling direction of one of the web halves before being placed in register with the other. The tension roller and one of the turnbars are both automatically driven to their working positions with the start of machine operation and retracted when the machine is set out of operation.

Abstract: A flexographic printing machine for extensible webs like synthetic resin foil webs has a tension-measuring or length-measuring arrangement along the path through the multiplicity of printing units so as to control a web-drawing device at the downstream side of the path to ensure registry of the imprints or impressions produced by the printing units.

Abstract: A length-variable sliding rail element enables a roller chain to be easily guided. Two complementary sliding rail elements fit together. Each of the sliding elements may be comprised of two or three segments. These various segments interengage each other to form a sliding rail element that is shiftable between collapsed and extended position.

Abstract: A large printer comprises a paper feeding unit in which at least one roll of paper and at least one sheet of paper including a stiff carton to be supplied are loaded, the paper feeding unit being located at a height that enables a user standing in front of the printer to execute the paper feeding process including replacement of the roll paper and setting the sheet of paper. A printing unit is located below the paper feeding unit. A discharged paper stacking unit is located below the printing unit. A paper feeding path extends from the paper feeding unit to the discharged paper stacking unit via the printing unit so as to be substantially straight. The feeding unit includes at least a pair of spindle receptacles into which both ends of an elongated spindle, on which a paper roll is mounted, are inserted.

Abstract: The invention relates to a printer with improved label dispensing, and more particularly a printer in which the label is prevented from adhering to the backing paper during the dispensing. The printer comprises a print head (1) for printing labels (4) attached by an adhesive layer to a backing paper (5), a path (2) along which the backing paper together with the labels is brought in front of the print head and on to a dispensing edge (3) at which the backing paper is to be deflected while the labels are released from the backing paper and dispensed in a substantially straight direction. According to the invention, the printer comprises means for moving or removing electric charges. In one embodiment of the invention, the dispensing edge (3) is coated with a material removing charges from the backing paper (5), while another embodiment of the invention is provided with a device that generates an electric field moving electric charges of the labels and the backing paper.

Abstract: Several printing units are arranged in a row for printing on as many separate webs traveling in centerline alignment and in phase with one another. At least one preselected web, on issuing from one printing unit, is directed over an angled guide rod thereby to be turned 90 degrees out of phase with the other, unselected webs. Subsequently traveling over a triangular shaped former, the preselected web is folded along a centerline thereof, back into phase with the unselected webs. The preselected web, already formed, and the unselected ones, yet unfolded, are then all superposed one upon another, with the fold of the preselected web in register with the aligned centerline of the unselected webs. The superposed webs are then folded by another former along the aligned centerline of the unselected webs. Subsequently fed into a cutting and folding device, the webs are cut and folded transversely into individual multiple-page signatures each having one center spread in addition to the usual inmost center spread.

Abstract: A paper roll braking device for rotary presses, in which a web is paid off from a paper roll supported between frames, caused to travel, and printed in a printing unit, comprising rotors provided on supporting members for supporting the paper roll, braking sections provided at a plurality of locations along the rotors and having friction discs that can engage with, or disengage from, the rotors at their respective locations, engage/disengage changeover sections for controlling the engage/disengage operation of the friction discs with respect to the rotors, and a tension sensing mechanism for sensing changes in the running tension of the web; a contact pressure adjusting section for adjusting the contact pressure of the friction discs to the rotors via the engage/disengage changeover section in accordance with the changes in running tension detected by the tension sensing mechanism, an outside diameter detecting section for detecting the outside diameter of the paper roll, and an operation control section for

Abstract: The invention relates to a system and method of eliminating wrinkling, tearing and web-breaks of a web in an offset printing press as the web contacts the chill rollers on start-up. The system operates to eliminate the wrinkling that generates the tearing. During startup, a spreader roller impinges the web, stretching out wrinkles. During acceleration of the press, when thermal contraction of the paper also achieves the desired stretching, the spreader roller is retracted to prevent smearing of ink on the web. Uneven pressure of the spreader is utilized to implement steering of the web to enhance web centering.

Abstract: A storage device for receiving a loop section of a flexible material web (8) moved in a conveying direction (18) between a feed area upstream of the storage device and a discharge area downstream thereof is described, the material web speeds at least periodically differing from one another in the feed area and the discharge area. The speed differences are compensated by a length change of the loop section stored in the storage device. On the feed side the storage device has a first pulling device formed by a suction belt (35, 55) and on the discharge side a separate, second pulling device formed by a parallel suction belt (35, 56). As a result of the parallel suction belts the drawn-in loop section is securely held by vacuum over most of its length, whereas between the pulling devices a tensile force-free loop partial section (4a) is moved to and fro in the store longitudinal direction with substantially no shape change in accordance with the store filling.

Abstract: A printing apparatus includes a media supply section and a media take-up section. Each section is capable of accepting a plurality of cassettes. On the supply section side, the cassettes can contain a roll of photosensitive material that is to be processed through a printing section. The cassettes on the take-up sections are initially empty and are designed to receive the web of photosensitive material after the web has been conveyed through the printing section. The cassettes can be provided at a plurality of locations and can be angularly positioned with respect to each other. A single transport assembly can be provided at each of the supply section and take-up section, and can be rotatable about a rotatable point so as to accept or discharge media to each of the appropriate cassettes. A splicer is provided on the transport assembly in the supply section, for splicing the end of the material from an empty cassette, and is also rotatable with the transport assembly.

Abstract: A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to maintain paper within the confines of the frame as the frame moves upwardly. The frame is balanced by a constant force spring, and is indexed by optical sensors. The frame includes two adjustable fences for variously sized paper which adjustably moves with paddles to press the paper edges downwardly in the stack. Pinch rollers for driving the paper include low inertia drive rollers formed of a relatively low density plastic material with a pair of idler rollers. To improve stacking, ironing tractor idler rollers iron the tractor perforations, and chains orient the catenary stacking movement.

Abstract: Drag rollers disposed in a region from the paper feed side to the paper discharge side of a printing machine are driven one after another from the paper feed side with torque control, by which the slack of a web is removed successively from the upstream side of a web delivery running path.

Abstract: The present invention is directed to providing apparatus and methods for lateral position control using a web guide which detects a relative lateral shift of a web upstream of a control device. Error correction is thereby implemented using a phase advance rather than a phase lag. The lateral displacement control can be implemented continuously, or can be activated at certain times (e.g., when a new roll is spliced to an old roll, or when disturbances enter the system). The invention eliminates wasted time and wasted paper, by eliminating misalignment of a web with respect to a printing unit.

Abstract: For regulating the pressure in a pressure chamber, in particular in a pneumatic brake apparatus for a web-type recording medium, an actual pressure is set in the pressure chamber dependent on an actual angle of rotation of a rotary valve. The actual angle of rotation of the rotary valve and the actual pressure in the pressure chamber are acquired. A target pressure and a target angle of rotation allocated to this target pressure are predetermined, and a pressure deviation between the actual pressure and the target pressure are determined, as is a deviation of the angle of rotation between the actual angle of rotation and the target angle of rotation. An adjusting unit sets the angle of rotation at the rotary valve, first dependent on the deviation of the angle of rotation and then dependent on the pressure deviation. Furthermore, a sensor for acquiring the angle of rotation is specified.

Abstract: Angular deformation is caused in a portion of offset-printed web paper corresponding to an adjacent portion of each of side edges of two blankets of a blanket cylinder so that paper wrinkles are caused. To prevent the paper wrinkles from being caused, a contact roller 10 is arranged in a paper wrinkle preventing device such that a circumferential face of the contact roller can rotatably come in contact with the running web paper W in a rotary printing press having an offset printing portion P for printing the web paper W coming in contact with surfaces of two blankets B2 having side edges adjacent to each other at an approximately axial center of a blanket cylinder B. The contact roller 10 is arranged between the offset printing portion P and a drag roller D1. An equal diameter portion 101c is formed by a roller portion coming in contact with an area of the running web paper W coming in contact with an adjacent portion B1 of each of the two blankets B2 and a portion near this adjacent portion.

Abstract: A folding device in which printing-material webs are cooled in an effective manner includes guide rollers and/or feed rollers designed as cooling rollers. Alternatively or in conjunction with the cooling rollers, there are cooling arrangements in the folder superstructure and compressed cooling air flows from these cooling arrangements onto the surfaces of the printing-material webs.

Abstract: The invention provides an aid for threading a printing-material web or part printing-material webs which are produced from the printing-material web by a longitudinal cutting device. The aid enables threading by a threading apparatus even in the region of offset bars. For this purpose, guide bars are introduced into the web course during the threading operation. The printing-material web is threaded through the offset bars but wraps around these guide bars instead of the offset bars. The guide bars are then either withdrawn from or pivoted out of the web course so that the printing-material web can be pulled taut on the guide bars. Likewise, it is also possible for offset bars mounted on one side to undertake the function of the guide bars during the insertion operation.

Abstract: A control device for controlling the tension of a paper web of a printing press is provided with a setting device for a speed master set point, with a speed controller for a drive motor, which is coupled with the setting device, with a setting device for a web tension set point, with a sensor for measuring the web tension, with a web tension controller, which is coupled with the sensor for measuring the web tension and with the setting device for the web tension set point. The speed controller is coupled with an output of the web tension controller.

Abstract: The inertial drag of idler rollers in a web-offset press with independently driven drive rollers is compensated by successively advancing downstream rollers during speed changes. This prevents low-tension conditions on the web and subsequent web breaks. Compensation is made for inertial coupling to the idler rollers through the web. Tension control is utilized to stabilize web position during startups and splices.

Abstract: A turning tower arrangement for a printing press includes a turning tower (11) with turning bars (21, 22) arranged in a plurality of planes (E1-E12) one over the other for guiding printed webs one over the other. A first turning tower (11) and at least one second turning tower (12) are arranged directly one behind the other in the direction of a printed web entering one of the two turning towers (11, 12).

Abstract: A curl removing device utilizable for the facsimile machine (1), in which the cutout portion (31) is formed on the holding part (28) of the curl removing plate (14) and it is formed in the plate holding part (13) the resilient hook member (24) which positions the curl removing plate (14) against the flat plate part (20) by being resiliently hooked to the cutout portion (31), and when the curl removing plate (14) is installed to the plate holding part (13), the curl removing plate (14) is slid on the flat plate part (20) so that the support shafts (22) of the support sections (21) are inserted in the support holes (30) of the support parts (29) in one direction (the direction shown by the arrow C) and the resilient hook member (24) is hooked to the cutout portion (31).

Abstract: The printer has at least two printing stations which cause images to be printed on a substrate. The printer is capable of registration adjustment. First and second patterns of spaced registration marks are printed onto the substrate by operation of the printing stations. The second pattern partially overlaps the first pattern to form a composite pattern of registration marks. The composite pattern is illuminated and the reflectivity thereof is examined at wavelengths complementary to the colors of the first and second patterns to obtain a reflectivity signature for the composite pattern. The reflectivity signature of the composite pattern (120) is compared with a predetermined signature to determine an adjustment factor for the printer.

Abstract: An emergency web-joining device activatable when a break occurs in a paper web disposed in operating condition in a rotary printing press, includes an unwinder having a paper web supply wound thereon, the unwinder being disposed in the vicinity of a roll for guiding a previously printed paper web, the supply of paper web and the previously printed paper web being joinable to one another in order to maintain passage of the previously printed web through a press part located downstream of the unwinder.

Abstract: A paper guide unit is disposed in a signature delivery section of a rotary press in which signatures are inserted between vanes of a delivery fan and dropped onto a conveyor located under the delivery fan through rotation of the delivery fan. A guide member located in the vicinity of a rotation area of the delivery fan has a signature guide surface which comes into contact the signatures inserted between vanes of the delivery fan in order to guide them toward the conveyor. A movable unit is provided to support the guide member. The movable unit is reciprocatively movable in a substantially horizontal direction to move the guide member toward or away from the delivery fan. An adjusting unit is linked to the movable unit for moving the guide member toward or away from the delivery fan via the movable unit to thereby adjust the gap between the guide member and the delivery fan.

Abstract: A device for threading a web through a printing press has a track and a snake riding externally on the track. The snake includes a plurality of segments which interconnect using holes and bosses. The track may comprise a plurality of curved and straight section to permit the snake to access various parts of the printing press.

Abstract: A turn bar apparatus is incorporated in a rotary press for reversing a web position during running thereof. The turn bar apparatus includes an upstream side turn bar, and a downstream side turn bar disposed along a web running direction. Pull rollers are disposed on an upstream side and a downstream side of the upstream side and downstream side turn bars, respectively. The puller rollers are controlled in such a manner that the peripheral speeds of the pull rollers are faster than a running speed of the web.

Abstract: A method for regulating web tension in a web-fed rotary offset printing press includes increasing web tension over a predetermined speed range, substantially linearly with web speed, as the printing press runs up to operating speed, and an apparatus for performing the foregoing method.

Abstract: A web infeed device for rotary printing presses, including a flexible, finite infeed element having a length greater than a spacing between adjacent drive elements for the infeed element includes a guide wherein the flexible infeed element is received, a plurality of rotationally symmetrical bodies inserted into the flexible infeed element for guiding the flexible infeed element and for reducing friction thereof within the guide, the flexible infeed element having a coating for reducing friction with the guide.

Abstract: In an apparatus for accurately imprinting print images onto sections of a edetermined length of a continuous unmarked foil, wherein a printer is disposed at a distance from a foil section delivery device which receives from the printer unprinted foil along a predetermined path, a foil sensor is arranged along the foil path which sensor has an output connected to the printer for supplying to the printer a printing signal when the length of the foil between the delivery device and a point on the foil corresponding to the beginning of a section to be imprinted is a predetermined multiple of the length of the foil sections to be imprinted so as to initiate printing of the printer accurately within a section of the foil.

Abstract: An apparatus and control method therefor which compensates differences among individual media in detected signal amplitudes caused by imperfect magnetic ink character printing conditions without requiring an adjustment of amplitude of a received signal amplifier. Preferably, the magnetic ink character detection apparatus of the present invention includes a moving device that moves the magnetic head and/or the medium relative to each other at a predetermined speed; an amplitude detection unit for detecting the amplitude and/or saturation amount of the electrical signals output from the magnetic head; and a moving-speed determination unit for determining the relative moving speed caused by the moving device in accordance with the output from the amplitude detection unit.

Abstract: A tension control system for a web in a form printing press permits arbitrary setting of tensions of a web at respective zones between an impression cylinder and respective rollers. The system includes tension detectors located on the upstream side of an impression cylinder in the printing portion and upstream side of a tension roller in the processing portion, for detecting tension on the web, speed adjusting mechanisms provided at least in respective drive systems of the impression cylinder and the tension roller adjacent to respective tension detectors, for adjusting respective rotation speeds of the impression cylinder and the tension roller on the basis of output signals from controllers, to which detected signals of respective tension detectors are fed back and tension setting devices associated with respective controllers.

Abstract: A tensioner and tensioning system for maintaining tension in a printer liner while providing manual advancement of the printer liner without accessing the inner compartment of the printer. A tension comprises first and second end brought in proximity to form a channel, and a middle portion formed into a circular configuration to hold the roll of printer liner. A stopper is included within the channel between the two ends which resists movement of the liner and promotes tension. The liner is preferably advances against the resistance of the tensioner by a take-up roller cooperating with a one-directional clutch which advances the liner without relaxation to maintain tension. The one-directional clutch is operated from an external area on the printer to enable the manual advancement of the liner without accessing the printer's inner compartment.

Abstract: A device for feeding a plurality of ribbons to a processing unit includes a first driven roll receiving a first of the plurality of ribbons and a second driven roll receiving a second of the plurality of ribbons, the first driven roll and the second driven roll being arranged adjacent to the processing unit, the first and second driven rolls individually driving respective ribbons of the plurality of ribbons and urging the plurality of ribbons directly towards the processing unit.

Abstract: A capture device in a printing machine for capturing a printing stock web in the event of a tear in the printing stock web includes two capture cylinders, one of which is movably mounted on a pneumatic piston or other resilient device. The capture device also includes a device for preventing an ink buildup on the capture cylinders. The device for preventing an ink buildup may include washing devices for removing the printing ink deposited on rubber blankets mounted on the outer surface of the capture cylinders. The device to prevent the ink buildup may also include outer surfaces of the cylinders 5, 6 made of an ink-repellent material, such as, for example, chrome. However, the washing devices 12, 13 can also be used in addition to the ink-repellant material.

Abstract: An auxiliary printing media roll holder use with printer/plotters to accomodate a large feed roll of printing media and increase the printing/plotting capacity and operational efficiency of the printer/plotter and reduce downtime due to reloading printing media rolls. The auxiliary roll holder has an elongate longitudinal frame with opposed ends adapted to be mounted between the laterally spaced legs that support the printer/plotter, longitudinal rollers rotatably mounted on the frame in parallel spaced relation, a longitudinal spindle bar removably received and rotatably engaged at opposed ends on the frame, and a pair of hubs slidably received and releasably secured on the spindle bar near its opposed ends, each having a generally cylindrical core receiving portion disposed in opposed facing relation for engaging and supporting opposed ends of a tubular core of a large roll of printing media which is drawn from the roll, passes over the roller, and into the printer/plotter.

Abstract: A device for contact-free application of a liquid material to a substrate includes an application head with a nozzle for applying the liquid to the substrate. A web edge sensor determines the position of a longitudinal edge of the printing web and transmits an output signal representing that position to the application head via a control device or an adjusting device on an operating console. The adjusting device and control device provide manual or automatic adjustment of the position of the nozzle relative to the current position of the longitudinal edge.

Abstract: A self-compensating tensioner, particularly a self-compensating tensioner for use in a folder of a web offset printing press, includes a plurality of rollers designed to tension tapes. Each roller is mounted on a tensioner arm. The tensioner arms are mounted on a rotatable shaft via one-way clutches with a weight attached to each tensioner arm so that the center of mass of the tensioner arm is offset from the rotatable shaft. The force of gravity may therefore rotate the tensioner arm about the shaft, applying a minimum tension to the tape through the roller. A lever arm is connected to the shaft through an engagement clutch, with an actuator connected to the lever arm. When the actuator and the engagement clutch are activated, the lever arm can apply a torque to the tensioner arms through the shaft, thereby increasing the tension in the tapes to a working level.

Abstract: A card insertion system (10) and method in which a free standing inserter module (12) for inserting cards into carriers has a carrier inlet (14) at a preselected elevation (14') for selectively, alternatively interfacing with, and receiving carrier forms (15) from, a free standing in-line carrier form printer module (20) with a carrier form outlet (22) at the preselected elevation (22') to feed in-line carrier forms to the printer inlet when the burster module (32) and printer module (20) are positioned in relative cooperate adjacent alignment and in which a free standing burster (32) for separating preprinted continuous carrier form stock into bursted separate carriers with a bursted carrier form outlet (38) at a preselected elevation (38') substantially the same as that of the carrier inlet (14) of the inserter (12) to enable direct insertion of the preprinted forms ejected from the burster outlet (38) into the carrier inlet (14) of the inserter module (12) when the inserter module (12) and printer module (

Abstract: A system for controlling the lateral position of a web in a web-fed printing press having a printing unit. The web has a series of printed images thereon. The system includes an optical scanner for sensing the lateral position of an image on the web and for generating a first signal. The system also includes an edge sensor which senses the lateral position of a corresponding web edge and which generates a second signal. A controller processes the first and second signals to produce a control signal. The systems also includes a positioning means responsive to the control signal for laterally positioning the web.