Abstract: Attachments for use with existing cylinders or shafts in printing press equipment. The attachments are used to mount a scoring blade, a perforating blade or an anvil to the cylinder or shaft. The blade or the anvil is separably mounted to the attachment and to the cylinder for easy assembly and disassembly.

Abstract: A counter-pressure apparatus for offset sheet machines for effectuating perforations and/or punchings comprises a foil provided with strips at two opposing of its edges. This foil is arranged for being fastened within fixing structure of a rubber blanket cylinder or of a forme cylinder of a printing group or of a coating module of the printing machine. The use of the foil, made e.g. of chronium steel, instead of a prior art rubber blanket results in much better perforations or punching apertures. Further, the printing machine can maintain its usual printing speed.

Abstract: In the context of a device for preventing damage to a rotary printing press comprising a dryer owing to tearing of the web being processed, a high degree of safety is achieved if such device comprises a web catching device, a severing and halting device arranged following the web catching device in the direction of web travel, such web catching device and such severing and halting device being arranged between a last printing unit of the printing press and the dryer, and a web tear detector adapted to cause operation in sequence of the web catching device and the severing and halting device.

Abstract: A scanner senses the position of the individual images on the web. A cutting cylinder position is monitored by a signal generator, and may be altered by mechanically changing the phase of the cutting cylinders in relation to the image on the web based on commands relating to the image registration error, the first derivative of the image registration error and/or the second derivative of the image registration error.

Abstract: A device for presetting a cut-off register in a folder of a web-fed printing press, includes a marking device for applying at least one mark in an image-free region between two printed images of a web, a detector for detecting the image-free region on the web, the detector being connected to the marking device for signalling the marking device when the image-free region is detected thereby, the marking device being disposed a defined distance in front of a nip located between cylinders of at least one printing unit, and a device for activating the marking device to apply a mark to the image-free region of the web when a respective output signal of the detector indicates the presence of the image-free region on the web.

Abstract: An apparatus for use with a printing press including a tension regulator for maintaining a substantially constant tension level on a web of printing medium passing through the printing press. The printing press has at least one dancer roller, and the tension regulator includes an actuator associated with the dancer roller for maintaining a constant biasing force on the dancer roller. The tension regulator also includes a reservoir which communicates with a first chamber of the actuator to define a second chamber larger than the first chamber. The volume of the second chamber is large enough that changes thereto are negligible to the extent that a piston of the actuator is displaced. Therefore, the pressure within the second chamber remains constant which permits a constant biasing force to be applied to the piston regardless of the displacement of the piston.

Abstract: An apparatus and method for the collated printing of a first set of images of a nonrepeating series and a second set of images. The collated printing provides for the complete printing of the nonrepeating series with respect to each of the images so that the combined images of the first and second series are collated in predetermined units or packets, preferably corresponding to the number of images in the repeating series. A first indicia for identifying the nonrepeating series and a second indicia for identifying the collated units can be printed on the combined images. Also, a strip of pressure-sensitive adhesive can be applied to the back of the combined images to form packets of the combined images and any desired quantity.

Abstract: A continuous web printing press (100) having a control system (202) for automatically identifying which one of a plurality of paper webs (108, 120) is running through which one of a plurality of compensators (146, 148) is provided. First and second marking devices (138, 140) apply reference marks (142, 144) on the respective webs (108, 120) to uniquely identify each web (108, 120). Preferably, the reference marks (142, 144) are comprised of a magnetized material, such as a magnetized label. A sensor (154, 156) is positioned at each of the compensators (146, 148) for sensing the reference marks (142, 144) located on the web (108, 120) running through the compensator (146, 148) to automatically identify which web (108, 120) is running through which compensator (146, 148). The marks (142, 144) on the web (108, 120) are preferably positioned on the webs (108, 120) to uniquely identify the webs (108, 120).

Abstract: A printing press with a page cutting control apparatus (11) for controlling cut-off registration in a rotary printing press (10) includes markers (30, 32, 51, 53) for printing reference marks (36) on webs (20, 23) with magnetizable ink having magnetic particles therein, magnetizers (62, 64, 65, 67) for magnetizing the reference marks, sensors (121-124) for magnetically detecting the reference marks, and a controller (140) for changing the web length in response to the detecting.

Abstract: A device for presetting a cut-off register in a folder of a web-fed printing press, includes a marking device for applying at least one mark in an image-free region between two printed images of a web, a detector for detecting the image-free region on the web, the detector being connected to the marking device for signalling the marking device when the image-free region is detected thereby, the marking device being disposed a defined distance in front of a nip located between cylinders of at least one printing unit, and a device for activating the marking device to apply a mark to the image-free region of the web when a respective output signal of the detector indicates the presence of the image-free region on the web.

Abstract: A printing machine in which a perforation pressure drum is disposed downstream of a paper feeding section, and a longitudinal perforation blade and a lateral perforation blade may be brought into contact with the perforation drum. A delivery drum is in contact with the perforation drum, and a numbering pressure drum is in contact with the delivery drum. A numbering box may be brought into contact with the numbering pressure drum. With such an arrangement, it is possible to enhance printing position precision and operational property.

Abstract: A rotary press has a feeder unit provided with a paper roll support frame, and a printing unit (tower type printing unit) provided with a printing means, and the feeder unit is disposed in a non-parallel and vertical relation with respect to the printing unit, the rotary press being further provided with a means for turning a paper web, which is fed from a paper roll supported on the feeder unit, and sent to the printing means, in such a manner that the surface of the paper web is opposed to the printing means. The web turning means is provided so that the guide surface thereof can be displaced in the direction in which the position of a paper web is changed with respect to the widthwise direction of the printing means. The feeder unit is provided with a plurality of paper roll support frames so that the paper webs can be drawn out at once from at least two paper rolls out of the paper rolls set on these paper roll support frames.

Abstract: A sheeter which can cut a running printed sheet discharged from a web-fed rotary gravure press, a web-fed rotary forms press, or similar rotary press with higher accuracy is provided on-line. The sheeter can selectively carry out a change in the length of cut with the change of a printing plate cylinder. A drum roller, which has the same diameter as that of the plate cylinder in a printing unit or a diameter that is enlarged by an amount of the applied tension, is provided in such a way that it is exchangeable and lies on a sheet guide passage introducing the running printed sheet to a cutting section with the flying knife. The drum roller is rotationally driven synchronous with the plate cylinder by a driving shaft of the plate cylinder, and feeds the running printed sheet to the cutting section by winding it.

Abstract: A device for presetting a cut-off register in a folder of a web-fed printing press, includes a marking device for applying at least one mark in an image-free region between two printed images of a web, a detector for detecting the image-free region on the web, the detector being connected to the marking device for signalling the marking device when the image-free region is detected thereby, the marking device being disposed a defined distance in front of a nip located between cylinders of at least one printing unit, and a device for activating the marking device to apply a mark to the image-free region of the web when a respective output signal of the detector indicates the presence of the image-free region on the web.

Abstract: Rotary die cutting apparatus comprising a driven rotary cylinder (10) on which is circumferentially mounted a removable forme (11) having knives (14) projecting radially therefrom. The forme (11) is magnetically retained on the surface of the cylinder (10) by a plurality of longitudinally extending steel bars (15, 16, 17) which locate within grooves (19) in the surface of the cylinder (10), each groove (19) coinciding with a plurality of longitudinally spaced magnets (20) which retain the forme (11) during rotation of the cylinder (10). The grooves (19) and magnets (20) are angularly displaced around the circumference of the cylinder (10) to enable a plurality of forme sections (11) to be mounted thereon according to the length of cut to be performed by the knives (14).

Abstract: An improved score or perforator bar device is adapted for use with certain printing presses having a blanket cylinder revolving upon an axle shaft and with an elongate slot for attachment of the blanket. The adapter device includes a bar of a length substantially the same as the cylinder with a working side having a longitudinal slot for mounting a knife blade. The knife blade has either a scoring edge or a perforation edge, depending upon the desired effect. The bar has an attachment side for connection to the blanket cylinder and has legs extending generally perpendicularly. The legs have recessed ends for bearing against the cylinder shaft so that the force of the blade is transferred to the axle shaft and not to the cylinder shell. Hooks selectively extend about the cylinder shaft. A screw arrangement retains the bar in a cylinder slot. A numbering device in lieu of the knife blade can be retained within the longitudinal slot.

Abstract: An electrostatic plotter includes a housing having a side to be confronted by an operator. A recording head is disposed in the housing for recording a latent image on a recording paper supplied from a roll of recording paper disposed in the housing near the operator side. The latent image recorded on the recording paper is developed into a visible image by a developing unit in the housing. A cutting unit cuts off a sheet with the developed visible image thereon from the recording paper and discharges the cut sheet toward the operator side of the housing. A control unit controls the cutting unit and issues a size signal indicative of the size of each of sheets cut off by the cutting unit. A plurality of stackers are positioned on a discharge side of the cutting unit and operable to sort and store the cut sheets in response to the size signal.

Abstract: A tape printer for making adhesive labels includes a tape supply, a printer for reverse printing on the tape and a double-sided adhesive film, one side of which is laminated to the printer tape and the other side of which carries a release paper. The printer has a cutter for cutting the tape from the continuous supply tape and includes a trimmer for rounding the corners of the tape to reduce defoliation of the tape from the surface to which it is applied. The cutting blade of the trimmer has a central straight section, contiguous arcuate sections at each end of the central straight section and auxiliary straight cutting edges contiguous with the arcuate sections and extending at an obtuse angle to the central straight section. The cutting blade is mounted in an integrally molded support unit which includes guide members for guiding the width of tape to be trimmed by the cutting blade.

Abstract: A device for feeding documents, such as receipts (K) to a receiver from a printing apparatus which prints information on the documents. The device includes means (9-13) which prevents the documents from being fed out and made available to the receiver until all information has been printed on the document, means (2) for making a document, the feeding of which is prevented through an outlet opening (4), unavailable to the receiver, and means (9-12) for transportation of the document to a place where it does not prevent the feeding of further documents through the outlet opening.

Abstract: Computer controlled numbering of consecutive business forms is provided for both computer controlled presses and in the form of a retrofit unit for conventional rotary presses. The retrofit unit includes a disk provided with radially oriented metallic strips of predetermined locations on the disk, and mounted on a suitable shaft of the press. The disk cooperates with a stationary transducer mounted, for example, on a stationary press wall to send signals to the control unit to fire the printer.

Abstract: A tape printer for making adhesive labels includes a tape supply, a printer for reverse printing on the tape and a double-sided adhesive film, one side of which is laminated to the printer tape and the other side of which carries a release paper. The printer has a cutter for cutting the tape from the continuous supply tape and includes a trimmer for rounding the corners of the tape to reduce defoliation of the tape from the surface to which it is applied. The cutting blade of the trimmer has a central straight section, contiguous arcuate sections at each end of the central straight section and auxiliary straight cutting edges contiguous with the arcuate sections and extending at an obtuse angle to the central straight section. The cutting blade is mounted in an integrally molded support unit which includes guide members for guiding the width of tape to be trimmed by the cutting blade.

Abstract: A score or perforator bar device is adapted for use with certain printing presses having a blanket cylinder revolving upon an axle shaft and with an elongate slot for attachment of the blanket. The adapter device includes a bar of a length substantially the same as the cylinder with a working side having a longitudinal slot for mounting a knife blade. The knife blade has either a scoring edge or a perforation edge, depending upon the desired effect. The bar has an attachment side for connection to the blanket cylinder and has legs extending generally perpendicularly. The legs have recessed ends for bearing against the cylinder shaft so that the force of the blade is transferred to the axle shaft and not to the cylinder shell. A screw arrangement retains the bar in a cylinder slot.

Abstract: Herein disclosed is a web paper cutting position adjusting system which comprises: marking means including a control unit for generating a predetermined phase detection signal by detecting a predetermined rotational phase of a platen, and a marking unit for marking a web paper in response to the predetermined phase detection signal; web paper cutting means disposed a predetermined distance downstream of the marking means for cutting the web paper; mark detecting means interposed between the marking means and the web paper cutting means for detecting the mark to transmit a mark detection signal; cutting phase signal transmitting means associated with the operation of the web paper cutting means for transmitting a cutting phase signal; and web paper threading path changing means including an arithmetic unit having an operation signal transmitting unit made receptive of the mark detection signal and the cutting phase signal for transmiting a web paper threading path length changing signal, if the transmission ti

Abstract: A paper web which has become tensionless downstream of a printing unit is severed and thus prevented from wrapping up on a printing unit cylinder by the placement of one or more web dividing or cutting blades generally adjacent to the surface of the cylinder about which the paper web will tend to wrap.

Abstract: A paper shear includes a flat disk with unsharpened edges pivotally mounted on an assembly carried by the printer carriage. The paper shear is pivoted between paper shearing engaged and disengaged positions relative to a shear platen. The mounting assembly includes a linear actuator and a mounting plate cooperable to pivot the paper shear into the engaged position at an extreme end of carriage travel and maintain it in the engaged position upon movement of the carriage in the opposite direction to shear the paper. The actuator and plate are then relatively displaced at the opposite extreme end of travel to pivot the paper shear into its disengaged position, whereby printing can be resumed.

Abstract: An anti-wrap apparatus and method for high speed printing press involves detecting the start of web wrap after web break to deactivate the press motors and apply the press brakes. In addition the detection mechanism which senses a change in the web path, can sever the already printed web being drawn backwards by the start of web wrap, to limit the availability of web material, for web wrap. In the case of difficult to sever web materials, severing action can be enhanced by forcing the web being drawn backwards, against the severing detection mechanism.

Abstract: A system for adjusting a finishing head relative to an impression cylinder in a printing, duplicating and like machine wherein copy sheets are fed through a printing couple and then to a finishing couple which includes the impression cylinder. The finishing head includes a finishing wheel for penetrating a copy sheet on the impression cylinder, and the head is mounted on a bar which is rotatably mounted between side frame plates of the machine. A preliminary adjusting mechanism is provided between the head and the bar for preliminarily adjusting the position of the finishing wheel relative to the bar. The bar is removably mounted between the side frame plates so that the preliminary adjustment can be made away from the machine. A very fine adjusting system is provided on the machine, operatively associated with the bar and including a dial on the outside of one of the side frame plates to provide fine adjustment of the finishing wheel while the machine is operating.

Abstract: A paper cutting system for use with printer mechanisms, and more particularly to an apparatus and method for double cutting paper in a printer to trim the final output paper to a standard length. The invention provides an economical means for printing a full-size image on a standard length output sheet from a roll of paper by initially setting the length of the output sheet to the desired standard length plus the length of the necessary leading margin. After the image is printed full-size on the extra-length output sheet, the output sheet is advanced forward out of the printer and cut a first time by the printer's paper trimmer to crop the leading margin of the output sheet. The output sheet is then advanced forward again and cut a second time to crop the output sheet to the desired standard length size.

Abstract: A method of forming stacks of printed material containing a set of printed patterns, each pattern in the set appearing at a selected printing area of each sheet in a selected sequence through the stacks, and the stack of material formed thereby. The method includes printing an arrangement of Y printed patterns along a length of a web in the selected sequence, severing the web in a direction transverse to the direction of travel or length of the web to form a plurality of printed sheets having Z printed patterns positioned along the length. The value of Z is selected to be greater than 1 and to equal a number other than a prime number or a multiple of a prime number of Y. By selection of a Z value as disclosed, the printed patterns in the set appear at a selected printing area in a predetermined sequence on consecutive pages in the stack.

Abstract: A receipt cutting mechanism includes a round knife or blade which is positively and rotatably driven and which engages with a fixed knife edge as the round knife travels across the printer on a driven carriage. The positive drive includes a gear cluster arrangement operated by a toothed belt which is stretched across the printer. The round knife is maintained in engagement with the fixed knife edge by means of a torsion spring tending to rotate the knife and its support in one direction.

Abstract: An improved perforating strip for use on printing presses formed of an elongated thin metal strip having a base portion of generally rectangular cross-section with flat upper and lower surfaces, the strip having integral upstanding teeth adjacent one edge, the edge of the strip opposite the teeth being curved from the lower surface to the upper surface providing a rounded edge which serves to substantially decrease the impression made in paper against which the strip is pressed, an in one embodiment the strip having an integral anchor portion downwardly extending from the edge opposite the teeth to penetrate the surface of a printing press impression cylinder.

Abstract: An improved perforating strip for use on printing presses formed of an elongated thin metal strip having a base portion of generally rectangular cross-section with flat upper and lower surfaces, the strip having integral upstanding teeth adjacent one edge, the edge of the strip opposite the teeth being curved from the lower surface to the upper surface providing a rounded edge which serves to substantially decrease the impression made in paper against which the strip is pressed, and in one embodiment the strip having an integral anchor portion downwardly extending from the edge opposite the teeth to penetrate the surface of a printing press impression cylinder.

Abstract: An attachment and method for converting a duplicator to a multi-purpose machine capable of printing serial numbers, designs, logos and signatures, as well as scoring and perforating work sheets including a chase adapted to be attached to a blanket cylinder of a duplicator machine for receiving implements for serial numbering, printing signatures, designs and logos, perforating and scoring.

Abstract: A notch cylinder unit for selectively activating a plurality of impaling pins such as might be used for separating and removing a strip from a paper web. The notch cylinder unit comprises a cylinder having a longitudinally extending hole and a hollowing driving shaft extending therethrough, at least two rows of removable blades extending radially outwardly from and longitudinally of the cylinder, and adapted to cut a strip in the web, and a plurality of slidably mounted impaling pins generally equally spaced between the rows of blades and adapted to puncture, hook and remove the strip. The notch unit cylinder unit further includes an activating means including an activating means for activating or deactivating the impaling pins.

Abstract: A monitor (18,26,28) monitors movement of paper (12) through a printer (16). The paper movement sensors (18,26) comprise one central wheel (70) or a pair of spaced edge wheels (158) each operating an individual photo-optic wheel (164,76). By counting pulses from the photo-optic wheels (76,164) monitor logic (28) determines conditions of jam, over-feeding and skew within the printer (16) both on an instantaneous and on a short term cumulative basis. The system self-calibrates through an initializing routine and later, continuously during operation. Paper movement sensors (18,26) are provided in dust-protected housings which can be chained together to provide monitoring facilities at many points.

Abstract: A printing cylinder cleaning apparatus for cleaning, for example, a blanket surface on a blanket cylinder of an offset press has a continuous cylinder cleaning cloth stretched between a cleaning cloth supply roll and a cleaning cloth take-up roll which are rotatably mounted on side plates of the frame of a printing machine, whereby the cylinder cleaning cloth being capable of running relative to the outer peripheral surface of a cylinder of the printing machine in contact therewith. The cylinder cleaning cloth is pressed by a suitable pressing member onto the outer peripheral surface of the cylinder of the printing machine. The apparatus further has a cutter which is disposed to cross a common line which is tangent to outer peripheral surfaces of the cleaning cloth supply roll and the cylinder respectively. In case of breakage or tearing of the cloth, the portion caught and stretched by the cylinder is cut by the cutter.

Abstract: A cheekstrip having an upper part and lower part fits into a knife box assembly that is intalled in the rotary cutting cylinder of the folder used on a roll fed printing press. The upper part is made from a hard material and is connected to the lower part, which is made from a soft material such as open-cell sponge rubber. A knife is inserted between flat surfaces of two cheekstrips. The soft material applies correct pressure to the upper part, which contacts the paper against an adjacent member and clamps it securely, to enable the knife to make a quiet, consistent, distortion-free severance.

Abstract: A printer includes a main body having an upper opening. A platen is arranged in the main body such that it opposes the opening. A cover is mounted on the main body such that it is pivotable between a closing position, for covering the opening except for a portion above the platen, and an opening position, for exposing the opening. A cutter having a blade is supported on the inner surface of the cover such that it opposes the main body. The cutter is pivotable between a stand-by position, where the blade is located above the platen, a cutting position, where the blade abuts against the peripheral surface of the platen, and a housing position, where the blade is located at a side opposite to the platen, about the pivotal center of the cutter. The cutter is selectively urged by springs toward the stand-by position or the housing position.

Abstract: A computer peripheral apparatus is provided which includes a printer which is connected to a computer which supplies data to be printed. The printer is fed with paper that is moved continuously by a sprocket drive and becomes printed sheets as it passes beneath a printer head of the printer. Each printed sheet moves alongside optical cells that read symbols that appear on lateral strips of paper connected by perforations about either side of the main printed sheet, which is then passed to a cropping device for cutting off the lateral strips, and then moves to a reading table which is followed by a succession of elements for routing of the printed sheets, either through a gate and into an appropriate bin, or onto a station for turning the printed sheet in a predetermined direction according to information read by the optical reading cells before its output from the apparatus.

Abstract: An improved automatic tape cutter/sticker is composed of an outer housing, inner housing, side cover, plate spring, circular ring tube, printing equipment, rotating cutting equipment, compressing rod and tape. The device further includes a circular ring tube, in which two opposite plates of the four pieces of circular arc tube plates are smaller and shorter than the other plates for encasing tapes with smaller widths. Moreover printing equipment is installed on the left lower side of the inner housing, which is composed of character mold rolling cylinder, ink rolling cylinder, character mold rolling cylinder shaft and ink rolling cylinder shaft. The character mold rolling cylinder linked with character mold rolling cylinder shaft is driven by the tape, so that the ink rolling cylinder located around the ink rolling shaft is driven so that the ink adheres to the convex lines of the character mold rolling cylinder for printing it in the back side of the output tape.

Abstract: A device for feeding a paper web to a cross cutter which is located downstream from a rotary printing machine in a travel direction of a paper web and which delivers cut sections of the paper web in flat disposition includes draw rollers and a former disposed downstream from the rotary printing machine for respectively tensioning and folding the paper web in longitudinal direction thereof, additional draw rollers and register rollers located downstream from the first-mentioned draw rollers and the former in the travel direction of the paper web for feeding the longitudinally folded paper web to a cross cutter, and a folding apparatus disposed adjacent to the cross cutter downstream from the rotary printing machine in the travel direction of the paper web, the cross cutter and the folding apparatus being formed as separate units.

Abstract: To simplify a transverse stretching apparatus and provide rollers which do not require a change in the respective axes of rotation, two rollers are located adjacent, parallel, and spaced from each other, in which each of the rollers have outer cylindrical sections of respectively different diameters, with an intermediate essentially conical section, merging smoothly with the outer cylindrical section. The rollers are so located that the smaller diameter circumferential section of one of the rollers (4) is opposite the larger circumferential section of the other roller (5), and, when in essentially axial alignment, define a neutral position in which the sums of the diameters of the rollers at any axial plane passing transversely through the axes of rotation, will be the same. Upon relatively axially shifting the rollers with respect to each other (compare FIGS.

Abstract: This rotary die cylinder assembly (10) is adapted for mounting annular members such as rotary knives (18) in locked relation thereon. The cylinder (12) includes a lengthwise extending slot (28) and a plurality of transverse bores (34) spaced lengthwise of the slot (28) and communicating with said slot. An elongate pressure bar (44) is received within said slot and set screws (46) are provided within said bores which are engageable with the pressure bar (44) to move said bar outwardly of said slot and into engagement with said annular member. Each member mounted on the cylinder is provided with arcuate slot (54) mating with the cylinder slot (28) and receiving the pressure bar (44) in accurately fitted locked relation when the set screws (46) are tightened.

Abstract: A method of makeready for a web printing press of the type wherein a web of paper or the like is fed through a print station and a perforating or like processing station driven by first and second drive shaft sections, respectively, which are normally held interconnected via a clutch for joint rotation and which are declutched to allow the print station to operate independently of the processing station. For reconnecting the two drive shaft sections in phase, the method comprises counting the number of revolutions of the first drive shaft section after the same has been declutched from the second drive shaft section, as by a CPU connected to receive electric pulses representative of the revolutions of the first drive shaft section. Upon reception of a clutch engage command from a manually actuable control panel, the CPU computes the additional number of revolutions required for the first drive shaft section before being reconnected in phase to the second drive shaft section.

Abstract: A printing mechanism is provided with a rotary cutter mounted on a printing trolley to enable a recording medium or document to be cut as the printing trolley moves during a printing operation. The recording medium is supported by a platen which has a counteracting edge cooperating with the rotary cutter and a control mechanism operates to actuate the rotary cutter between an active position for cutting and a lifted inactive position with a spring operating to apply a spring force against the rotary cutter tending to urge it against the counteracting edge.

Abstract: The shafts of the sections of a printer-slotter machine are gear coupled and are set to the desired phase relation by a microcomputer control while coupled. The sections need not be de-coupled during set up. During normal operation, following set up, the section shafts are mechanically locked in phase register.

Abstract: A paper roll stand holds a paper roll in such a manner as to allow it to rotate in two opposite directions so as to temporarily locate a leading web end on a table board. An arm assembly positioned above the table board is movable in the lengthwise and lateral directions. The arm assembly includes a suction cup device for lifting up the outermost web of the paper roll, a cutter device for cutting the paper web, and a tape-attaching device for adhesively attaching web pasting adhesive tapes to the web's leading end. A device for adhesively attaching a head of a web end-fastening strip to an inner side of the web's leading end is located below the web. A paper roll-pressing device for adhesively fastening a tail of the web end-fastening strip to the outer surface of the roll is also included. A new paper roll prepared for web pasting according to the present invention is brought to the paper roll stand of a printing unit and rotatably held thereon.

Abstract: To eliminate space requirements of an additional separating device to cut a torn web of paper in a rotary printing machine, a paper cutter is integrated into the circumference of a guide or transport roller (1) in the form of a knife (12) smoothly merging with the circumference (2) of the roller (1), but pivotable outwardly of the circumference (compare FIGS. 2 and 3) if a "torn paper" condition is sensed. In normal operation, a cam (6) rotates with the roller (1) being carried along, for example by friction, by a stub shaft (4). Upon sensing a "torn paper" condition, an electromagnet (20) pulls a latch (17) in engagement with a ratchet stop (16) on the cam, inhibiting rotation of the cam with the roller (1) and causing a cam follower (8) to rise on a land (7) of the cam, thereby pivoting the knife out of circumferential position with respect to the roller and severing the paper web (5).

Abstract: A method of preventing the subsequent breakage of webs running in a rotary press which would be caused by a first broken web. In this method, when a signal of web breakage is received from any one of web breakage sensors which are provided to sense the breakage of any of the running webs, a nip pressure signal is changed in accordance with the number of webs still running, and is sent to a nip pressure controller to decrease the nip pressure of a triangular former drag pressing roller and nipping roller, to prevent the multiple breakage of webs.

Abstract: A printer utilizes an automatic stacker that has a conveyor belt whose speed and increment of advance is varied as a function of the size of the tag being printed in order to provide a more even overlap when different size tags are stacked in a shingle fashion.