Abstract: An unwinding machine for wound rolls, e.g. of paper, has holders which can be swung alternately into the unwinding and the splicing positions. A new roll in the splicing position has its leading end engaged by a groove roller which draws the new web between itself and the old web during continued unwinding thereof and a blade roller is pressed against the groove roller to cut through both webs and attach an adhesive strip across the trailing end of the old web and the leading edge of the new web. The residue of the old web continues to be wound up on the blade roller while a small residue of the new web is picked up by the groove roller and carried away.

Abstract: A slender ribbon currently in use and nearing depletion is spliced automatically with a similarly slender new ribbon, held motionless and ready to feed as the replacement for the ribbon in use, by a device comprising a pair of jointing rollers positioned in symmetry on opposite sides of the two ribbons and disposed normally in a standby configuration, stationary, which allows the ribbon in use to pass freely between their two peripheral faces whilst the leading end of the new ribbon is restrained by one of the rollers and distanced from the ribbon in use through the action of an adjacent pulley; in a second configuration, the two rollers contrarotate synchronously and in a direction concurrent with the feed direction of the ribbon in use, completing one full revolution during which the new strip is accelerated initially by the restraining roller to a feed velocity matching that of the ribbon in use, whereupon the two ribbons are sandwiched between two stickers and pinched tight.

Abstract: A system for coordinating the splices in each of the component webs used in making a composite corrugated paperboard web independently measures on a dynamic real time basis the length of each component web between the splicer where it is supplied and a downstream cutoff apparatus where the synchronized splices are cut out in a short length of web in which they are contained. The real time measurement of each component web includes continuous monitoring of web lengths subject to change while running through variable length storage areas, and an initialization procedure whereby an initially unknown length of component web in its respective storage is determined. The system also includes a calibration procedure by which the various devices used to measure running web lengths throughout the system are all calibrated to a master device which controls the total web length for each order.

Abstract: A method and device for splicing narrow strips, whereby two portions of the two strips are superimposed and spliced by means of a pair of adhesive elements placed on either side of the superimposed strip portions, and each presenting a first portion connected to a respective strip, and at least one second portion connected to the other adhesive element.

Abstract: The leader of a fresh flexible web of paper or the like is spliced to the trailing end of an expiring web by a row of uniting bands having coats of adhesive at both sides. Successive uniting bands of the row are peeled off a flexible carrier strip while being attached to one side of the leader. The expiring web is thereupon arrested and its trailing end is pressed against the uniting bands which already adhere to the leader of the fresh web. The peeling of uniting bands off the carrier strip takes place between a supply reel which stores convolutions of the carrier strip with a file of uniting bands on it, and a takeup reel for that portion of the carrier strip has been relieved of uniting bands. The number of uniting bands in a row depends upon the width of the fresh web and/or the expiring web. A carriage is movable back and forth transversely of the leader of the fresh web and carries an idler roller serving to peel a selected number of uniting bands off the carrier strip between the two reels.

Abstract: A method and apparatus for splicing at least two single or multiple layer materials of air permeable soft paper webs while retaining web tension during operation. The apparatus includes a first suction chamber for retaining an end portion of a new web in trailing engagement against a first web, which is to be spliced, a second suction chamber over which moves the first web, which is to be spliced, as well as the forward end portion of the new web for splicing, a regulatable vacuum system for the suction chambers, an embossing nip placed downstream of the second suction chamber for bonding together the webs kept together with the aid of controlled air passage through them, and a cutting means for cutting off the moving web.

Abstract: In the field of unwinding webs from an unwind stand in which a fresh web is prepared with a paste strip and is lapped spliced to a progressing expiring web, and the expiring web is then cut upstream of the splice to form a tail, the position of the tail is predicted or detected, and the movement thereof to a taping station causes a tape support roll, which supports a strip of one-sided adhesive tape to be applied to the tail in such a manner that part of the adhesive strip covers the tail and part of the strip engages the underlying web so that the tail becomes firmly taped down to the web thereby permitting the web to be run in either direction through processes such as converting processes, coating processes or the like. Embodiments of tape tail detectors are disclosed and embodiments of hold-down tape transfer mechanisms are disclosed.

Abstract: Intended typically for slender tear strips, the automatic splicer comprises at least two supply reels wound with respective strips, the one in use and the other a replacement, set in rotation singly or together by a common drive, and feed wheels with peripheral grooves positioned with axes normal to the axes of the reels, by which the two strips are directed into a splicing station where the trailing end of the strip uncoiling from the reel in use is joined to the leading end of the strip uncoiled from the replacement reel; the splice is effected by means of a positioning and restraining component and a reference and reaction component stationed on either side of the strip in use, which can be drawn together until the ends of the strips are fully in contact, with the leading end of the replacement strip positioned and restrained in a longitudinal groove afforded by the relative component. The ends of the strips are trimmed automatically by separate cutters.

Abstract: To automate the preparation of a replacement paper roll for flying roll changing, initial layer portions of web material from the replacement paper roll and which, typically, are damaged, are rolled on a scrap roll (2) to form scrap material windings thereon. In a first moving step, the scrap roll (2) is placed in engagement with the replacement paper roll to wind scrap material thereon. When a sensing element (22) senses that the paper is suitable for printing, the scrap roll is moved away from the replacement roll (1) and into a preparation or processing position (FIG. 11). At that processing position, two spaced axially extending perforation or tear lines (4, 5) are formed in the beginning portion. In a third moving step, the beginning portion is placed in engagement with the paper roll by moving the scrap roll back towards the replacement roll and, preferably, adhered thereto temporarily by a holding adhesive.

Abstract: For the continuous formation of bags for containing bulk materials--in the form of granules, powders and the like--the end of the web (EN), from a new bobbin (BA) in readiness, is laid, with the surface to be welded on the outside, around a welding bar (18) carried by a movable element (12), and the bar (18) is positioned opposite a counterbar (20), along which the web (N) being exhausted from the previous bobbin (B) runs; bar and counterbar are brought close to one another to carry out transverse welding and cutting, in such a manner that a superimposed and welded edge (BS) emerges transversely from the continuous web thus joined, from the surface opposite that of welding. (FIG.

Abstract: To prepare an initial portion (41) on a replacement roll (4) of a substrate web, for example a printing paper web, for flying pasting, the new roll (4) is rotatably supported in apredetermined position. An adhesive application and cutter structure (5) is then placed in operative association with the roll. An initial portion (41) of the web is rolled off from the new roll, positioned on the support plate, and, in one operating step, an end, which may be jagged, is cut off and, inwardly of the cut edge (42), a perforating or tear-off line (43) is formed, to leave, between the cut edge and the tear-off line, a tear-off section (44). The web can then be repositioned on the plate (6) and a connecting adhesive (19) is applied to the upper side of the web, for subsequent flying pasting against a moving expiring web, for example, as well as a holding adhesive, applied in the inside of the tear-off section (44), so that the end portion (41) is securely attached to the roll.

Abstract: A splice assembly for a paper web transport apparatus including first and second webs of paper with each web alternately constituting a running web moving in first direction and a new web to be spliced to the running web, the splice assembly including a knife guide for providing a cutting edge for cutting the running web and the new web; a moving assembly for moving the knife guide back and forth in a direction of movement of the running web; first and second clamping assemblies for selectively clamping the running and new web, the first and second clamping assemblies being positioned on opposite sides of the knife guide in the direction of movement of the running web; two knives for selectively cutting the running web and the new web against the knife guide; a first tape applicator for applying a piece of tape to the same side of a splice of the running web and the new web, regardless of which of the first and second webs is the running web and which of the first and second webs is the new web, without index

Abstract: A band-changing apparatus for flying band change which consists of two unwinding stations which are arranged adjacent to a band changer. From the respective unwinding stations, a new band and a running-off band are brought together in the band changer in a V-shaped manner from the top downwards through two channels and enter into a pressure-roller unit rotary stops are provided in the channels for controlling movement of the respective bands. The band changer also possesses two rotary crosscutters for cutting the bands to size. The new band is equipped with an adhesive strip which leads to an adhesive bond with the running-off band in the pressure-roller unit.

Abstract: An automatic connecting apparatus for continuous packaging, having a braking mechanism for braking a terminal of a belt-shaped product at a braking position located near a conveying pathway of the belt-shaped product, with the belt-shaped product having packaged items which are packaged in bulged sections at regular pitch intervals. The apparatus also has a detection device coupled to the braking mechanism, for detecting the terminal end of the belt-shaped product. A positioning mechanism positions the terminal end at a prescribed position downstream from the braking position of the belt-shaped product, with interactive movement between the bulged sections and an interacting piece. A cutting mechanism is provided for cutting and separating a terminal end, and forming and pressing a new terminal end. A starting-end positioning device is provided for positioning the starting spare belt-shaped product so that it can be connected to the terminal end of the old belt-shaped product.

Abstract: A method and apparatus for facilitating a splicer operator's pre-splice preparation and positioning of the leading end of a new web for splicing, in a splicer, to the running web of an expiring roll. The webs both include regular and longitudinally spaced registration marks and identical, repeating and longitudinally spaced patterns.A movable table is used for the initial, off line, pre-splice web preparations. It includes a fixture for guiding the leading end of the new web along a longitudinal path and a hole puncher adjacent to the path. An optical instrument is also mounted on the table and is movable transversely across the path. The optical instrument is spaced longitudinally a preselected distance from the hole puncher. The operator moves the new web along and the optical instrument across the path until a registration mark is aligned beneath the optical instrument. The operator then punches holes in the new web using the hole puncher.

Abstract: A method of and apparatus for forming a butt splice between an expiring web and a new web in which both webs are concomitantly cut at a location upstream of a lap splice formed between the webs and a length of splicing tape is applied at the location to form the butt splice. After the butt splice is formed, the new web leading portion which is severed during the cutting operation is stripped from the expiring web. Preferably a stiffener strip is adhered to the expiring web with a breakaway adhesive and to the new web with a firm adhesive during the formation of the lap splice to facilitate the subsequent stripping operation.

Abstract: A web splicing method and apparatus to splice a running web to the web on a ready roll so as to avoid web speed and position mis-matches due to roll eccentricity and roll end wobble. After an adhesive splicing medium is applied to the leading end of the web on the ready roll, that roll is accelerated to a selected nominal splicing speed. The roll surface speed and end edge position are then measured at least at a location at or near the splicing medium thereon. The speed and edge position of the running web are also measured. During successive revolutions of the roll, the running web speed and the roll surface speed in the vicinity of the splicing medium are compared to produce speed difference signals which are applied to control the speed of the running web and/or the roll to match the speed of the running web and the surface speed of the roll at or near the splicing medium.

Abstract: Apparatus for splicing the leading portion of web material from a fresh supply roll to the trailing portion of web material from an expiring supply roll to a take-up system comprising a pair of guiderollers normally positioned apart from each other, apparatus for gripping the leading portion of the fresh web so that the leading portion can be held in contact with one of the guiderollers, apparatus for pressing the two guiderollers together so that the leading portion of web material from the first supply roll can be joined by an adhesive to the trailing portion of the web material moving from the expiring supply roll, apparatus for cutting the web material moving from the expiring supplying roll moveable between alternate cutting positions downstream from the guiderollers and apparatus mechanically linked to, operative to actuate the respective functions of, the apparatus for gripping the leading portion of the fresh web, apparatus for pressing the guiderollers together and the apparatus for cutting the web m

Abstract: According to the invention, an apparatus is provided for feeding a continuous plastic film from a source of supply to a plastic film processing machine such as a plastic bag making machine and the like, which includes first and second take up rolls for taking up and rewinding the plastic film. First guide means is disposed at a position in the path for directing the plastic film from the source of supply to the first take up roll via the first guide means. Second guide means is disposed downstream of the first guide means in the path for directing the plastic film from the second take up roll to the processing machine via the second guide means. The plastic films can be sandwiched between and heat cut widthwise by first heat cutting means and first receiving means, whereby the plastic film from the source of supply is connected to the plastic film to the processing machine, while the plastic film to the first take up roll is connected to the plastic film from the second take up roll.

Abstract: A device for joining a leading end of a new second strip-like material to a trailing end of a supplied first strip-like material is disclosed. This device includes a joining preparation path. A stamper base is arranged midway along the joining preparation path. The first and second strip-like materials are fed to the joining preparation path by first and second feed mechanisms, respectively. The first strip-like material passes through the stamper base, and is supplied to the next process by a convey mechanism. The leading end of the second strip-like material is aligned with a predetermined position of the stamper base, and is held in position. The device includes a stamper for holding a joining tape piece by suction.

Abstract: With the splicing get started, braking becomes strong and the old core decelerates, when the capstan roll comes to be free run. The speed reference to the second motor is a summed-up speed of "line speed minus capstan speed" and compensated portion of the tension. At once when the old core starts deceleration, the accumulation roll unit starts moving. The capstan roll is accelerated at a certain rate, when the new core is drawn out, up until the speed reaches "line speed plus overrun speed". When the accumulation roll unit reaches the synchronous position, the overrun becomes "0" and the capstan roll synchronizes with the line speed.

Abstract: A support beam supports a box type beam on which there is located, essentially tangentially to the shell surface of a guide roll coordinated with it, a contact surface for the adhesive tape. Perpendicular to the contact surface, a holding slot for the adhesive tape is provided on the box-shaped beam. The adhesive tape protrudes out of this holding slot with a considerable part, of which the cover foil is removed. A blowing device or blowing channels with blowing orifices bend the part of the adhesive tape protruding out of the slot upward so that, with the support beam approaching the guide roll, this part of the adhesive tape practically is in contact with the contact surface. In this way, adhesive tape can be fastened on the web end wrapping around the guide roll.

Abstract: In a web handling apparatus for continuously supplying a running web to a web-consuming machine using a main accumulator to provide uninterrupted feed of the web during splicing of the trailing end of an expiring roll to the leading end of a ready roll, an improved ready-roll acceleration technique uses a supplemental accumulator disposed between the ready roll and the splicing head to enable the ready roll to be accelerated prior to completion of the splice. This technique permits the use of a smaller main accumulator and/or increased running speeds. In fact, the total storage capacity of the main and supplemental accumulators can be less than that of the single accumulator of conventional apparatus of this type. Furthermore, the running roll can be slowed without adverse consequence so as to reduce web tension upsets. The invention is also useful in web winder/splicer applications.

Abstract: A device for splicing paper webs for the manufacture of corrugated board. At least one pressing and redirecting roller is provided to receive the terminating web to be spliced from a web roll. Two clamping rollers, which function in an alternating manner, grasp the terminating web from the web roll. The clasping rollers are moveable from their initial positions to operating positions. A clamping beam, which functions in an alternating manner with one or the other clasping rollers, includes pressing faces disposed oppositely facing each other, there being one beam for each of the clasping rollers. Each clamping beam has a pressing face for pressing the web which runs across it. Two breaking beams alternatingly cooperate with the upper side of the clamping beam for one or the other clasping roller to bring the terminating web to rest. Two alternatingly functioning knives act to cut off the web which is played out.

Abstract: A device for applying spaced layers generally transversely across an elongate web which defines a through path for the web including parallel inlet and outlet path portions spaced sideways from each other and a transverse path portion between adjacent terminal and beginning ends of the inlet and outlet path portions. The web is moved lengthwise at a predetermined speed in a first direction along the inlet and outlet path portions, the device periodically moves the portion of the web along the transverse path portion generally edgewise in a direction parallel to the first direction and at about the predetermined speed to essentially stop longitudinal movement of the portion of the web along the transverse path portion; and the device applies a layer of material such as tape generally transversely across the portion of the web along the transverse path portion as it moves tangentially by the periphery of a rotating applicator drum.

Abstract: An apparatus and method for effecting a splice between a pair of feed rolls for successively supplying film material to a film utilization device, such as a labeling machine. Downstream from the rolls, a splicing station includes a pair of parallel, spaced film paths, carrying film from a respective roll. Movable film pads within the splicing station displace film within a selected path past a film cutter to manufacture a trailing end. Continued displacement of the trailing end brings it into adhesive engagement with the leading end of the other film, disposed within the other film path. A braking station downstream from the splicing station holds fast the film extending from the selected path during the splicing operation. Means to effect in registration splicing of film from the two rolls, while allowing continuous operation of the associated film utilization device, is also disclosed.

Abstract: A splicing apparatus for joining a trailing end of a first sheet to a leading end of a second sheet comprises a first servomechanism including a first drive for engaging and advancing the first sheet in a direction of advance; a second servomechanism including a second drive for engaging the first sheet upstream of the first drive; a splicing device for joining the trailing and leading ends to one another upstream of the second drive; a sensor for generating a signal when the trailing end of the first sheet passes a predetermined location upstream of the splicing device; and a computer connected to the first and second servomechanisms, the splicing device and the sensor for reducing the speed of the advancing first sheet and for subsequently effecting a joining operation of the splicing device upon receiving the signal from the sensor; and a sheet length compensating device engaging the first sheet at a location between the first and second drive for reducing or increasing the length of the first sheet betwee

Abstract: A splicing device for label webs mechanically holds the leading end of the new web and is rapidly transferred to splicing position and accelerated into the running speed of the web while the rotational speed of the web supply spool that is associated with the leading end of the replacement web is initially gradually adjusted to the running speed of the label web. The leading end of the replacement web and the trailing end of the expiring web are glued in an overlapping manner. The splicing device has two identically constructed multi-functional drums which are arranged to function alternately and are equipped with a gripper, cutter, free running deflector roller and pressure application device.

Abstract: An apparatus for a flying change-over of a synthetic plastics strip (13, 13') from a first drum with a roll (3, 3') of this strip to a second drum carrying a roll (3, 3') of the same synthetic plastics strip (13, 13') has, in addition to the two drums, a cutting (9, 9') and gluing (5) means as well as control means (6) for actuating the various drives.

Abstract: A device for connecting the end of one strip of material (6) which is being taken off a first roll with the start of a strip from a new roll (3) on a take-off machine, which is replacing the first roll, with a cutter (19) to cut the strip (6) being taken off, a device to hold the strip end (6.4) produced by this, and to press the strip end to the outside circumference of the new roll (3) replacing the old roll, in order to produce an adhesive bond, is made much simpler in design by the fact that above the take-off point, in a frame, two pairs of pivot arms (8, 13), each parallel, are attached. One pair of pivot arms (8) carries a transport element (7) to lift part (6.4) of the strip being taken off, which can be pivoted opposite the strip movement direction, from a rest position (11) behind the strip part (6.1) being guided to the guide roller (5) in the strip movement direction, into an end position (12) which is located outside the area of a full roll (3).

Abstract: A continuous web splicing machine has supports for rotatably mounting two rolls of sheet material in tandem, guides for guiding the sheets along upper and lower paths to a splicing station, and an output loopholder for holding a loop length so that the web is supplied continuously even during the spicing operation. The splicing station has upper and lower upstream holders, upper and lower downstream holders, and upper and lower cutters at the splicing station. The cutters and holders are selectively operable in automatic sequences so that fresh sheets can be spliced to the spent sheets alternatingly from the two roll supports. The cutter is formed with knife parts having serrated edges with hooked teeth for improved cutting action. The holder assemblies may be oriented vertically or in other suitable orientations.

Abstract: A method an apparatus for replacing reels of web-like material having a paper-end gripping arm having an attraction surface and a keep pawl. A peeling member peels of a bonded end portion of the material and the material is delivered along a transport path where it is held and the bonded end portion is cut off. The cut end portion is then removed from the transport path. Two reels are supported on reel holding portions and are alternately fed to the transport path. The end portion is bonded to the reel by boring a hole in the end portion, attaching tape to the outer surface in the area of the hole and pressing the tape inwardly so that it extends through the hole and is bonded to the outer surface of the material beneath the hole.

Abstract: Apparatus for stabilizing the trailing end of a web that is to be spliced to the leading end of a new web includes a knife for severing the old web and for creating a tail that must be stabilized, a suction box over which the trailing end passes, which provides stability to the trailing end, a pressure roll movable to move the cut trailing end of the old web against the leading end of the new web and a leaf-spring-like extension extending downstream of the suction box to the connection point or splice point between the webs. The extension is deflectable with the pressure roll and the extension carries the vacuum of the suction box further downstream and also supports the trailing end of the cut old web. The extension is cantilevered to the downstream side of the suction box.

Abstract: The known splicing system for paying out a rolled sheet and continuously feeding a sheet to a downstream machine of the type that the system includes a sheet splicer for stopping a running sheet and splicing a tip end of another new sheet therewith, a tension roll in a dancer roll section for forming a sheet pool downstream of that sheet splicer, which tension roll is provided for the purpose of feeding the running sheet without changing the speed of the downstream machine, an accelerating roll for stopping a running old sheet and accelerating the new sheet upstream of the dancer roll section and downstream of the sheet splicer, and a guide roll provided downstream of the dancer roll section and upstream of the downstream machine for feeding the sheet coming from the dancer roll section to the downstream machine in the prior art, is improved. The improvements reside in that when a rotational speed of the accelerating roll is represented by -N.sub.2, a rotational speed of the guide roll is represented by +N.

Abstract: A method and apparatus is disclosed for forming a zero-speed, butt splice to join together a web from a new roll of material to a web which is from an expiring roll of material and which should be run, at a relatively high speed, through a web processing operation, such as a disposable diaper manufacturing line, under relatively constant, relatively low tension along a predetermined path of travel that includes a running web festoon means having floating dancer rollers and the running web processing operation. To form the butt splice, the leading end of the new web is trimmed by moving one knife wheel assembly along the cutting edge of an anvil. A piece of tape is applied to the leading end so that a portion of the tape projects downstream from that end. The expiring web is held against the anvil and trimmed along the same cutting edge of the anvil. The trailing end of the expiring roll is also simultaneously adhered to the downstream portion of the tape.

Abstract: A splicing device for packaging webs comprises a dual magazine shiftable between an on-line position and a stand-by position. Both magazines can hold a web. When the web held in the on-line position is exhausted, the magazine is shifted and the web from the stand-by position can be used while the exhausted web is replaced. A joining unit is provided for each magazine to connect the end of an exhausted web with the end of a new web. A cutting unit is positioned at the on-line position for cutting a web in use whereby a new web may be joined thereto in an aligned manner. A feeding unit is provided upstream of the cutting unit and includes a crease wheel for feeding and folding the web. Another cutting unit is provided upstream of the feeding unit for severing the web in desired package lengths. The splicing device enables rapid joining of webs with a minimum of labor.

Abstract: A tape for splicing the leading end portion of a standby roll of web to the trailing end portion of an active web. The tape includes first and second longitudinally extending sections which are secured to the outer layer and adjacent inner layer, respectively, of the standby roll by adhesive. A longitudinally extending intermediate section which is free of adhesive joins the first and second sections to one another and causes those two sections to coact to hold the outer layer to the adjacent layer during rotation of the standby roll prior to splicing while permitting the outer layer to lift away from the adjacent layer as the splice is made. Longitudinally extending and parallel score lines are formed through the first section but not through the adhesive thereof. The score lines enable two spaced bands of the first section to be peeled away to expose two spaced adhesive stripes for making the splice and to leave an intervening bridge for protecting the stripes against contact with equipment or the like.

Abstract: A knife wheel assembly suitable for forming a butt splice to join together a web from a new roll of material to a web which is from an expiring roll of material and which is being run, downstream from the expiring roll, under tension along a predetermined path of travel that includes a running web storage means and a press or other web handling means. To form the butt splice, the leading end of the new web is trimmed by moving one knife wheel assembly along the cutting edge of an anvil. The trimmed leading end is held against the anvil, and a piece of tape is applied to the leading end so that a portion of the tape projects downstream from that end. The portion of the expiring web, adjacent to the anvil, is then momentarily stopped, held against the anvil, and trimmed by another knife wheel assembly, along the same cutting edge of the anvil, by movement of the knife wheel assembly across the web, from side-to-side, along the cutting edge of the anvil.

Abstract: A system stretches and severs a strip-like resin sheet unwound from a sheet roll to produce a product of a prescribed shape, the system having a stretching device having forming members for stretching the strip-like resin sheet into a fan-shaped resin sheet. The system includes a device disposed downstream of the stretching device for severing the fan-shaped resin sheet on cutting edges, and a feeding device disposed downstream of the severing device for feeding the product to a prescribed area.

Abstract: A web butt splicing device for splicing two successive webs by butting the following end of a first roll of web and the leading end of a second roll of web against each other. In the web splicing device, the following end of the first roll of web is cut and is then drawn to and held on the hold surface of a butt splicing table. The leading end of the second web roll is cut on a provisionally positioning table to the shape of the following end of the first web roll, is then carried to the butt splicing table by a carrying device and is butt spliced to the following end of the first web roll. Therefore, according to the web splicing device, the webs can be butt spliced together without recourse to a manual operation.

Abstract: The disclosed web splicing apparatus and method provide for the in-registry lap splicing of a new web, that has a spaced, regularly repeating pattern thereon to an expiring web that has an identical, spaced, regularly repeating pattern thereon and that is moving under tension and at a relatively high speed along a predetermined path of travel. The leading end =of the new web is prepared for a splice so that a pattern thereon is aligned with a first pre-selected point. During a splice, a portion of the expiring web is substantially stopped and then moved at a relatively slow speed past a sensor that is positioned at a second pre-selected point downstream from the first pre-selected point and that senses the passage of the next pattern on the slowly moving expiring web.

Abstract: Apparatus for splicing a replacement web to a moving web comprises a guide for guiding the moving web along a predetermined path. A cutter severs a portion of the replacement web to establish the leading edge thereof; and a splicing station is positioned in the path of movement of the moving web for splicing the leading edge of the replacement web to the moving web while the latter is moving.

Abstract: A web of sheet material (10) from a first storage roll (16) is fed by feed rolls (12, 14) to a utilization station (18). A splicing machine (22, 22') is positioned between the storage roll (16) and the feed rolls (12, 14). A new roll (20) of sheet material (34) is positioned above storage roll (16). Shortly before the first storage roll (16) becomes empty, the leading end portion of the second web (34) is fed into the splicing machine (22, 22'), above a portion of the first web (10). Then, a loop forming roll (30) is moved downwardly, from an inactive upper position above the feed path of the web (10) to a lower position, to form a loop (L) in the web (10). Then, the web (10) is stopped rearwardly of the loop (L) and the splicing machine (22, 22') is operated to connect the new web (34) to the old web (10 ), while the feed rolls (12, 14) continue to operate to feed web (10) out from the loop (L).

Abstract: A system for processing fabrics or webs continuously, especially for applying and drying resins or other chemicals on glass fiber cloth. The system includes an upstream-located unwinding unit which comprises a semiautomatic splicing assembly for splicing the terminating or trailing end of a fabric or web coming from an unwound roll to the forward or leading end of a fabric or web on a roll to be unwound. The unwinding unit is followed by a first multiple turn-around and take-up roller set when the fabric or web is transferred to a station of application of a resin or other processing material. From the application station the fabric is fed to a hot air drying kiln, where the resin is dried. Downstream of the processing kiln, there are provided a hot finishing roll assembly followed by a second multiple turn-around and take-up roller set. Finally for the processed fabric or web is wound into a roll by a winding unit.

Abstract: A method and apparatus for splicing a fresh stack of continuous pin-feed forms in a high-speed printer having fed therethrough an expended stock of continuous pin-feed forms, where the printer includes an input station at a recessed area. A slidable tray for supporting the fresh stack is pulled out of the printer, and a splicing station which is hingedly coupled to an upright wall portion attached to the tray is deployed external to the printer for splicing ease. The splicing station includes a spool of splicing tape which is disposed within a locating groove of a controlled depth, the forms being registered on locating pins on either side of the groove for accurate splicing upon pressing them centered on the tape. When the splice is complete, the spliced stack is fan-folded upon the tray, the splicing station folded back against the upright wall portion, and the tray returned within the recessed area.

Abstract: A device and method for treating the end portion of a paper from a paper roll mounted on a paper feed unit of a paper processer. The device arranged adjacent the paper roll is moved toward the paper roll until a presser roller mounted on the device is pressed against it. A cutter assembly facing the paper roll is pushed out so that its cutter will come into contact with the periphery of the paper roll. The cutter is then slid transversely from one end of the paper roll to the other to cut several turns of paper from the paper roll as broke. The broke is rolled out to be fed downwardly over a suction body through a pair of nip rollers and taken up by a take-up mechanism. Another cutter assembly is pushed forward into contact with the central part of the paper end rolled out together with the broke and moved widthwise to make a center cut in the paper end. A cavity forming device is then pressed against the paper end right under the center cut to form a square cavity there.

Abstract: A method and apparatus is disclosed for forming a butt splice to join together a web from a new roll of material to a web which is from an expiring roll of material and which is being run, downstream from the expiring roll, under tension along a predetermined path of travel that includes a running web storage means and a press or other web handling means. To form the butt splice, the leading end of the new web is trimmed along the cutting edge of an anvil. The trimmed leading end is held against the anvil, and a piece of tape is applied to the leading end so that a portion of the tape projects downstream from that end. The portion of the expiring web, adjacent to the anvil, is then momentarily stopped, held against the anvil, and trimmed along the same cutting edge of the anvil. As the trailing end of the expiring roll is trimmed, it is simultaneously adhered to the downstream portion of the tape. This serves to join this trailing end of the expiring roll and the leading end of the new roll together.

Abstract: A system for controlling a dump gate in a conveyor system (e.g. carrying printed copy from a high-speed printing press to stackers) detects a marker carried by a marred product (e.g. a metal tab fitted when splicing a new reel of paper) to start a counter which counts the products passing and opens the dump gate a predetermined count. A counter closes the dump gate again when a second predetermined count of passing products is reached.

Abstract: The web splicing apparatus for connecting a running web extending and traveling between a supply of web material and a web using machine to the end portion of a new supply of web material comprises a frame to which is secured and supported a splicing device. The splicing device has web clamps and cutting members and functions to connect the severed end portion of a running web to the end portion of a new web. Two sets of slide shoes are secured to the frame to engage a pair of rails so that the frame is reciprocatively supported for movement in the direction of travel of a running web, when the splicing device is operative to effect a splice, to thereby supply web to the web using machine and moves in a direction counter to the direction of travel of the running web after the splicing is completed.

Abstract: The device disclosed serves to splice the trailing end of packaging strip wound off a used-up roll to the leading end of a new roll, and comprises heated pressure rollers that bond the two ends of the strips, plates that guide the leading end of the new strip about to be bonded, and a sensing wheel that detects proximity of the leading edge of a new strip when fed into the guide plates. The trailing end of the used-up strip is cut by a blade located upstream of the guide plates, and a timer is used to set the operating time lapse of the pressure rollers according to the length of the splice as established by the stroke of the blade.