Abstract: The present invention provides a web conveying apparatus for conveying a web while holding the web and applying tension to the web, wherein the conveying apparatus has a plurality of rollers with which the web contacts to be conveyed, and at least one roller of the plurality of rollers has a mechanism for limiting deformation of the web within Y/E, and a web conveying method using a web conveying apparatus for conveying a web while holding the web and applying tension to the web, wherein the conveying apparatus has a plurality of rollers with which the web contacts to be conveyed, and the web is conveyed while the deformation of the web is limited within Y/E by a mechanism that is provided for at least one roller of the plurality of rollers. The apparatus and the method prevent meandering of the web.

Abstract: A drag board for use in a coil processing line for tensioning or wiping a continuous line of strip material using a substrate to which is selectively secured a contact pad. The leading edge section of the substrate is constructed and arranged for receiving a locking bar which may be activated to apply or release a compressive, securing force on one edge section of the contact pad. Releasing the locking bar permits removal of or emplacement of a contact pad from or onto the substrate.

Abstract: A turning bar assembly rotatably disposed adjacent a web of material moving at an operational speed in a web forming device has a turning bar for changing a direction of the moving web. Moreover, the turning bar is controllably rotated 360 ° against the moving web to prevent dust accumulation and dust clumping on the turning bar.

Abstract: An improved high-speed fiber assembly is provided comprising one or more dampening bars, an intake assembly, and feed tubes for transferring one or more fibers from an intermediate winding into one or more mechanisms for additional processing such as tensioning, prepregging, rewinding, weaving, or pultrusion.

Abstract: In a rotary press, a first press roller adapted to retreat during printing and advance during plate changing to contact a web is provided on a travel route of the web between a printing unit and a dryer. A second press roller having the same function as the first press roller is provided on the travel route of the web between air infeed unit and the printing unit. A web presser for pinching the web is provided on the travel route of the web between the infeed unit and the second press roller. With the web being pinched by the web presser, the first press roller and the second press roller can be moved by the web in a retreating direction. After plate changing is completed, the press rollers can smoothly ascend regardless of their pressure, and can promptly and smoothly return to the state before plate changing.

Abstract: The invention concerns a guide (10) for the web, such as the wire or felt, in a paper machine/board machine. The guide is formed by a bearing housing (12) at one end of a guiding roller (11) in such a way that the bearing housing (12) includes a curved surface as the rolling surface (13). An actuator (14) is adapted to roll the bearing housing along a stop face (T1), whereby by using the actuator (14) an essentially linear transfer is given to a shaft stub (11a1) pivoted by a bearing (15a1) in the bearing housing (12).

Abstract: A device for drawing or braking metal bands or metal sheets and including two oppositely arranged endless revolving chain systems with a gap therebetween through which a metal band or a metal sheet is displaced and including carriage-like roller blocks for effecting one of clamping and driving the one of a metal band and a metal sheet, an elastic lining for covering the roller blocks; and elements for generating magnetic fields for controlling driving and/or restraining forces applied to the metal band or the metal sheet.

Abstract: A device for drawing or braking metal bands or metal sheets and including two oppositely arranged endless revolving chain systems with a gap therebetween through which a metal band or a metal sheet is displaced and including carriage-like roller blocks for effecting one of clamping and driving the one of a metal band and a metal sheet, an elastic lining for covering the roller blocks; and elements for generating magnetic fields for controlling driving and/or restraining forces applied to the metal band or the metal sheet.

Abstract: A wire tensioning system for a wire-shaped working electrode of a spark erosion machine and a procedure for the tensioning of the working electrode. The working electrode at least nearly circumferentially encompasses a braking roller in a wire entry zone and/or a tensioning roller in a wire withdrawal zone. A nozzle is assigned to the braking and/or the tensioning roller such that the nozzle exerts a tensile force on the working electrode to tension the wire.

Abstract: A device for drawing or braking metal bands or metal sheets and including two oppositely arranged endless revolving chain systems with a gap therebetween through which a metal band or a metal sheet is displaced and including carriage-like roller blocks for effecting one of clamping and driving the one of a metal band and a metal sheet, an elastic lining for covering the roller blocks; a plurality of shaping and filler pieces for controlling tension applied to the elastic lining; and elements for generating magnetic fields for controlling driving and/or restraining forces applied to the metal band or the metal sheet.

Abstract: In a web guidance device, particularly for a continuous form printer device, deflection seat is provided around which a recording medium web is guided in a conveying direction. A lateral guide roller influences the recording medium web with a laterally acting force in a region of a deflection seat such that the recording medium web lies against the lateral detent. A planarly acting hold-down element is provided in a region of a lateral guide roller, the hold-down element pressing the recording medium web onto the deflection seat with a specific pressing power.

Abstract: In the present invention, the recording paper is conveyed by a feed roller to plural recording portions sequentially, and each recording portion successively prints each specific color on the recording paper while applying tension to the paper. The tension applied to the recording paper is switched to a predetermined value each time the recording paper is conveyed to each recording, portion when starting to print.

Abstract: The invention concerns an annular clamping ring in particular for laying oil ducts including a rigid annular base (2) supporting with support apparatus a coaxial ring-shaped assembly of vertical jaws (4) mobile in the diametral planes; said apparatus includes long connecting rods (14) articulated on the base (2) and on the outside of the jaws (4) in an almost vertical position, and the rigid annular body (3) enclosing the jaw (4) assembly, mobile in vertical translation by means of controllable cylinder actuators (6) linking it to the base (2); the jaws (4) are linked with the annular body (3) by at least two connecting rods (5) forming an articulated parallelogram, such that the annular body (3) vertical displacement relative to the base (2) causes a substantially radial and synchronized displacement of the jaw assembly (4).

Abstract: A wire brake for use with automatic wedge bonding machines which have cutting pliers arranged behind the associated bonding tool and movable along the bonding wire for detaching bonding wire from the open pliers. The wire brake includes guiding members having a plurality of deflectors that can be applied to the bonding wire, the guiding members having two planes from which the bonding wire can be laterally deflected. A central deflector is provided for deflecting the bonding wire from the planes. The central deflector projects between the two planes for guidance of the bonding wire and is displaceable transverse to the longitudinal extension of the bonding wire. Additional guiding members are arranged opposite the planes such that the bonding wire rides between the central deflector and the additional guiding members when the bonding wire is deflected.

Abstract: A tensioner, for clamping cables, flexible pipes or bars and moving them forwards in a controlled manner, includes at least two conveyors, each intended to displace one or more clamping members. The conveyors each attached to a main frame element. A selective number of the conveyors can be combined using standard connection elements.

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: Methods, an apparatus and a system in which reclosable bags and components thereof are formed are disclosed. The reclosable bags are made from base web material that has transversely applied fastener tape segments thereon. The web material is used in a vertical form, fill and seal bag forming method. The method includes the steps of supplying across the web a continuous strip of tape, having male and female fastener profiles thereon, for sealing thereto. In one embodiment a continuous strip of barrier material, and a continuous strip of fastener having first and second interlocked fastener profile strips are positioned on the continuous strip of tape; and secured thereon, the barrier tape is folded to obtain a fold and two opposing barrier tape fastener strip connecting portions; and, the fold is slit to form two separate continuous strips of barrier material strips and two continuous strips of tape.

Abstract: A roller guiding system for delivery of magnetic tape media along a tape path between a tape drive employing a single reel and a tape cartridge employing a single reel. The roller guiding system comprises a plurality of guide rollers configured to adjust the path of travel of the tape media during tape drive operation to maintain tracking of the tape media with a tape head.

Abstract: A former board arrangement in a web-fed rotary newspaper printing press comprises a first and a second row of former boards each row including a first, second and third former board for longitudinally folding one or more ribbons passing over the former boards. The first row of former boards is arranged above the second former board, and a movable folder is located below one of the former boards of the second row of former boards for crossfolding and cutting the ribbons into signatures. (FIG.

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: Methods, an apparatus and a system in which reclosable bags and components thereof are formed are disclosed. The reclosable bags 2001 are made from base web material that has transversely applied fastener tape segments thereon. The web material is used in a vertical form, fill and seal bag forming method. The method includes the steps of supplying a continuous strip of tape, having male and female fasteners profiler across the web for sealing thereon. In one embodiment a continuous strip of barrier material, and a continuous strip of fastener having first and second interlocked fastener profile strips are positioned on the continuous strip of tape; and secured thereon, the barrier tape is folded to obtain a fold and two opposing barrier tape fastener strip connecting portions; and, the fold is slit to form two separate continuous strips of barrier material strips and two continuous strips of tape.

Abstract: A paper transfer apparatus is provided which is incorporated in an electrophotographic printer having a photosensitive drum for printing on elongated paper. The paper transfer apparatus serves to transfer the elongated paper along a transfer path extending via the photosensitive drum. The paper transfer apparatus includes a discharge or scuff roller for pulling the elongated paper in a transferring direction. The discharge roller is spaced downstream from the photosensitive drum. The paper transfer apparatus also includes a pair of tractors for advancing the elongated paper along the transfer path. The tractors are spaced upstream from the photosensitive drum. Each of the tractors is provided with a presser member supported by a tractor lid of the tractor. The presser member serves to apply friction to the elongated paper when the tractor lid is in closed position.

Abstract: The present invention is a channeled roller, used in association with flexible webs, which is provided with a pressurized gas flow, and which may be used to remove web wrinkles, clean webs and rollers, brake rollers, and heat, cool, moisturize, and dry webs. In operation, gas flow travels through the roller channels and applies non-contact forces to the web, thereby removing wrinkles and providing other types of beneficial web treatment.

Abstract: A device for unrolling sheets, with positively guided leading edges, travelling along a conveying path of a delivery of a printing machine for processing the sheets, the sheet unrolling device being formed with a first unrolling groove followed upline in the conveying direction by at least one second unrolling groove, and having a negative-pressure generator for subjecting a respective unrolling groove to negative pressure, includes a delaying device for delaying a negative-pressure increase in the second unrolling groove relative to a negative-pressure increase in the first unrolling groove; and a delivery of a printing machine combined with the sheet-unrolling device.

Abstract: One or more porous air film rolls are used, in a system to support a flexible web during movement of the web, and selectively provide either compliant or rigid clamping of the web while performing processing operations on the web at a work station. The present invention is particularly suitable for punching holes on-the-fly, in both "X" and "Y" directions, in a flexible polyamide film. Up to a four-fold increase in punch tool productivity is provided by the present invention.

Abstract: One or more porous air film rolls are used, in a system to support a flexible web during movement of the web, and selectively provide either compliant or rigid clamping of the web while performing processing operations on the web at a work station. The present invention is particularly suitable for punching holes on-the-fly, in both "X" and "Y" directions, in a flexible polyamide film. Up to a four-fold increase in punch tool productivity is provided by the present invention.

Abstract: A method for dispensing a ribbon of tape from a roll by using guide and feed rolls to apply a significantly higher tension to the ribbon along the longitudinal central portion of the ribbon than along the longitudinal side edge portions of the ribbon so that forces tending to tear the tape adjacent to the side edges of the tape are significantly less than those normally applied in drawing a ribbon of tape from a roll whereby breakage of the tape is minimized.

Abstract: A tension control device (50) for a printing press (10) having an adjustment roller (52), a device (64 and 66) for measuring the tension on opposed sides of a web (14) passing downstream from the adjustment roller (52), and a device (82) responsive to the measuring device (64 and 66) for automatically approximately equalizing the tension of the web (14) on the adjustment roller (52) on opposed sides of the adjustment roller (52).

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 device and a method for acting upon sheets in a sheet delivery system of a printing press, wherein sheets can be printed selectively on one side and on both sides thereof, includes a sheet tautener having a surface by which it is integrated into at least one adjacent sheet feeding plane, mounting supports for the sheet tautener, and adjacent air nozzles for forming an air cushion on the sheet tautener when the printing press is in a single-sided printing mode for printing on one side thereof and is in a first-form and perfecter printing mode for printing on both sides thereof.

Abstract: A tensioner for an armature winder which significantly reduces instantaneous increases in wire tension during winding or lead connection. System controls control the drag of a hysteresis brake, monitor wire tension via a load cell, and control a dancer arm's position through limit sensors and a closed-loop proportional valve (which regulates the pressure within an air cylinder coupled to the dancer arm). These system controls significantly reduce instantaneous increases in wire tension during winding, during the start of winding, and during lead connection. A wire breakage detection device also monitors the wire during winding and signals the system controls if wire breakage is detected. Upon such detection, a rapid discharge valve discharges the air cylinder, and flyer arm rotation is halted prior to the wire becoming unthreaded from the flyer arm.

Abstract: A material transfer device for continuously feeding or outputting strand material into or out of a treatment room, as well as to a material transfer structure. In order to maintain a desired treatment atmosphere in the treatment room, a material transfer device which is free from wear and trouble and has a good sealing effect. The material transfer device has a passage element, an inlet opening of which has a variable cross-section. The cross-section is either varied by a pressure device or by internal forces in a circumferentially expansible tube. Further, a pulling device pulls the strand material through the passage element. A plurality of chambers are arranged one behind the other, through which chambers the strand material travels both towards and out from the treatment chamber. The material passages of the chambers each have locks.

Abstract: An adjustable yarn tensioning device for maintaining generally uniform tension in a running textile yarn that runs through a ball seat so that a ball on the seat applies a gravitational tensioning force to the running yarn. The ball seat is formed in a depending cup that is selectively rotated to align with any one of a plurality of chambers through which the yarn travels to a common outlet. The chambers contain different size or weight ball combinations so that alignments can be selected to provide a desired tension. In addition to a preferred embodiment in which the cup rotates under the chambers, the device may be formed for sliding of the cup longitudinally under a straight line arrangement of the chambers.

Abstract: A device is provided for stabilizing a paper web in an unwinding and splicing station. The splicing station includes a primary paper roll and a secondary paper roll. A suction trough extends across a width of the paper web and includes a suction zone adjacent the paper web. The paper web unwinds from the secondary paper roll and passes the suction trough. The suction zone extends substantially across the width of the paper web and is configured to effect a substantially uniform vacuum in its area, wherein the unwinding paper web runs evenly over the suction zone area.

Abstract: In a system for transporting film materials, rotation of the transported film caused by uneven stress across a width of the film is eliminated by providing a pinch roll drive in which the driven roll is a precision metal roll and the non-driven roll is a rubber roll, the outer cylindrical surface of which is defined by a plurality of axially-spaced annular ribs. Accumulated error is removed at regular intervals by braking the film to cause correction of slippage. Feed under uniform stress is achieved by forming a dancer roll film loop and correcting for differential alignment of the various transport rolls by displacing a portion of one side of the loop.

Abstract: A system for bringing ground warp threads under tension on a beam stand comprises first and second rollers on which the ground warp threads run. The first roller is mounted on a support which is movable in relation to the second roller. A mechanism for exerting force on the support is provided whereby the ground warp threads on the beam stand are brought under tension. The mechanism includes a hydraulic element that is connected to a hydraulic pressure vessel by a pipe provided with an apparatus for controlling or regulating the hydraulic fluid.

Abstract: A dragboard for use in wiping or tensioning of a continuous metal strip utilizing a protective layer which is formed to encapsulate a substrate. A contact layer is attached to the protective layer through an adhering layer. The protective layer is removeably attached to the substrate permitting replacement of the protective layer.

Abstract: A redemption ticket and dispenser therefor. The redemption tickets or "stamps" are printed with indicia that include a sequence of successive characters printed across multiple tickets. The tickets may have about a thickness of white bond paper (20 lb.) and a length as little as three-quarters of an inch. A notch is cut at a perforation between each of the tickets of the strip, and the ticket strip can be gummed to allow the tickets to adhere to a surface. A ticket dispenser for dispensing the improved (or other) redemption tickets receives a ticket strip from a ticket supply and includes a rear guide, sensor, front guide, and drive roller along a ticket path. The drive roller engages and pulls the tickets strip along the ticket path, while the rear and front guides align the ticket strip. The ticket strip is wrapped at least partially around the guides and drive roller so that drag is induced on the ticket strip to prevent a recipient of the tickets from pulling the tickets out of the dispenser.

Abstract: A printing device with friction drive for processing continuous paper. For this purpose, it contains a friction drive (8) comprising friction rollers, between which the recording substrate (A) is passed through, and a paper feed device (PZ). In the paper feed device (PZ), the recording substrate (A) is aligned in a web precentering device (3), is thereafter braked in the recording substrate transport direction, so that the recording substrate (A) assumes a predetermined position in the friction drive (8). After that, the recording substrate web is stabilized in a stabilization zone by stabilization rollers (9) and is fed via a festoon device (10) to the drive (8) of the printing unit (DA).

Abstract: A dispenser for dispensing tape, particularly a ribbon of tape, from a roll uses guide and feed rollers to define the path of the ribbon, at least sufficient of these rollers are shaped to apply a significantly higher unit tension to the ribbon along a central longitudinal portion of the ribbon than is applied along the longitudinal side edge portions of the ribbon on opposite sides of the longitudinal central portion so that forces tending to tear the tape adjacent to the side edges of the tape are significantly less than the forces in the center whereby breakage of the tape is minimized.

Abstract: This invention pertains to processing continuous webs such as paper, film, composites, and the like, in dynamic continuous processing operations. More particularly, it relates to controlling tension in such continuous webs during the processing operation. Tension is controlled in a dancer control system by connecting a corresponding dancer roll to a servo motor or the like, sensing position, tension, and velocity parameters related to the web and the dancer roll, and providing active gain force commands to cause translational movement in the dancer roll to control temporary, short-term tension disturbances in the web. In some applications of the invention, the dancer control system is used to attenuate short-term tension disturbances. In other applications of the invention, the dancer control system is used to create short-term tension disturbances.

Abstract: A yarn tension device includes a receiving plate and a pushing plate for clamping a moving yarn and a spring for urging the pushing plate toward the receiving plate; at least one of the receiving plate and the pushing plate is rotatably supported, a drive source drives the rotatable plate, and as a result the device can be maintenance-free.

Abstract: A tape loading device for use in a recording or reproducing apparatus has a first turning member having a tape guide which is kept in contact with a tape during running thereof and being turnable according to the tension of the tape, a second turning member for causing the first turning member to turn by its turning operation and loading the tape guide into a predetermined position, and a driving part for turning the second turning member. An urging member having two end portions is provided on the second turning member with the two end portions supported individually. The urging member is arranged so that only when the first turning member is located within a predetermined turning range, one of the two end portions is brought into engagement with an engagement part fixed to the driving part so that the urging member can generate an urging force for the first turning member.

Abstract: A device for improving a system for controlling the winding of a ribbon on a take-up reel. This device is particularly designed to obviate the phenomenon of clinging between a ribbon and the face of a card to be printed on, during an operation of printing by the thermal transfer of inks carried by the ribbon. For that purpose, the vertical shift of the ribbon is detected by a sensor associated with an optical detection device. The detection of this shift prompts the modification, in a circuit, of the number of steps per time unit of the step motor.

Abstract: A circular type tension applying apparatus for slit band plates comprises a plurality of pairs of upper and lower endless belts for interposing the respective slit band plate, an upper pressure applying member for allowing the upper endless belts to rotate and for applying pressure to the upper endless belts, and a lower pressure applying member for allowing the lower endless belts to rotate and for applying pressure to the lower endless belts. Each of the endless belts is able to rotate independently and circularly, and an outer surface of the endless belts being larger in friction than an inner surface of the endless belts. Both of the upper and lower pressure applying members are substantially circular in section. Furthermore, the endless belts have sufficient compressibility and restoration force in thickness direction so that tension is generated by resistance force from a deformation by compressive strain of the endless belts.

Abstract: A method and apparatus for longitudinally folding a printed web upstream of the former or other finishing device in an in-line printing press. The invention permits plow folding to be accomplished upstream of the former by carefully controlling the tension of the web while it is in the plow folding apparatus.

Abstract: A method of producing two continuous streams of cigarettes, whereby a continuous paper strip is cut longitudinally into two strips which are fed, through a tobacco loading station and along respective guides for forming respective continuous cigarette rods, to a transverse cutting device by means of respective conveyor belts looped about a number of common pulleys and more specifically about a common drive pulley, and the speed of which is controlled by respective tensioning devices operating at the same pressure.

Abstract: A process and apparatus for the control of a yarn storage mechanism on a spinning mill machine is proposed. When yarns are wound up it may occur, e.g. in forming conical bobbins, that more yarn is delivered than is wound up. The yarn which is briefly in excess is here taken up in form of a yarn loop by a compensator arm which intervenes transversely in the course of the yarn and is mounted so as to be capable of swivelling. According to the invention it is proposed that the compensator arm be subjected to the force of a spring which acts upon it increasingly as the yarn loop decreases, and in that the force of an additional elastic element acts upon the compensator arm as further excursion occurs.

Abstract: A master tape movable in a closed loop including a pinch roller transfers a mirror image to a slave tape movable in a closed loop including a capstan. A thermomagnetic layer on the slave tape has a Curie temperature above which magnetic information is destroyed and below which magnetic information can be recorded on such layer. The thermomagnetic layer is heated above the Curie temperature, thereby becoming lengthened by thermal expansion just before the slave tape reaches the capstan. A downstream portion of a peripheral surface, preferably defining a cylindrical segment, on a first guide receives a pressurized fluid for sensing the tape tension in accordance with the tape width, distance from the cylinder axis and fluid pressure. An upstream portion of the guide peripheral surface receives a vacuum adjustable to regulate tape tension in response to variations in the pressurized fluid pressure.

Abstract: A compact rope stretcher maintains the tension in an endless rope used for threading a web in a papermaking machine and includes an elongated H-beam having a flange engaged by guide wheels supporting a pair of separate carriages. The carriages support corresponding rope sheaves for free rotation, and a pair of fluid cylinders are mounted on opposite sides of the beam web and have piston rods connected directly to the corresponding carriages by laterally floating links. Proximity sensors are mounted on opposite end portions of the H-beam for indicating when the rope stretch is reaching a limit, and the beam supports a full length cover which encloses and protects the carriages and cylinders.