Abstract: A method and apparatus are provided for implementing interleaved-dielectric joining of multi-layer laminates. First and second multi-layer laminates are provided, each having with a laminated portion and an unlaminated portion. The first and second multi-layer laminates are joined together at the unlaminated portions by interleaving a plurality of dielectric layers of the first and second multi-layer laminates. Respective conductors carried by adjacent dielectric layers are connected. The interleaved unlaminated portions are laminated together with heat and pressure, to create a larger laminate of the joined first and second multi-layer laminates.

Abstract: A rubber sheet jointing apparatus is provided with a first holding member for releasably holding a joint end portion of one of two rubber sheets; a second holding member provided movably relative to the first holding member for releasably holding a joint end portion of the other of the two rubber sheets; and an operating member for pressure-contacting the end surfaces of the two rubber sheets respectively held by the first and second holding member by moving the second holding member relative to the first holding member. Mutually facing surfaces of the first and second holding member are respectively provided with holder portions which are formed as rugged portions each taking a comb tooth shape and which are able to partly overlap to mesh with each other.

Abstract: A vapor barrier tape dispenser includes a generally upright frame. A roller pivotally mounts to a lower portion of the frame. A handle mounts to an upper portion of the frame for engagement by an operator. A spindle pivotally mounts to the frame. A tape roll pivotally attaches to the spindle and is configured to feed a strip of tape around a portion of the roller for adherence to a vapor barrier.

Abstract: A medical catheter device is disclosed that comprises a tubular shaft member, a soft tip member, and a wire guide lumen extending longitudinally within the tubular shaft member and the soft tip member. The wire guide lumen is offset relative to the centerline within the soft tip member. By offsetting the inner diameter of the soft tip member in such a way as to not change the outward profile of the catheter, the soft tip will have improved tracking across existing stents and eccentric lesions.

Abstract: A splicing device (13) and a method for the transport and feeding of plastic film (8) to a processing station. In this processing station the articles are wrapped in the plastic film (8) and the film (8) can subsequently be shrunk. This device includes a supply of film rolls with at least three separate film rolls (1 to 6) that are subsequently fed to a conveyor. The device furthermore includes a fixation device (20, 24, 26) arranged between the conveyor and the film rolls (1 to 6). The fixation device (20, 24, 26) fixes and joins the beginnings of film of new full film rolls (2 to 6) to the sheet of film currently fed into the processing device.

Abstract: An extrudable polyvinyl chloride composition comprising from 80 to 99.9 percent by weight polyvinyl chloride for use in extruding a first part and a second part, wherein a fusion joint between the first extruded part and the second extruded part is formed by: A) composition at least a portion of a first terminal edge of the first extruded part and a first terminal edge of the second extruded part; B) engaging the melted terminal edges; and C) maintaining pressure between the engaged terminal edges to create a fused joint having a strength that is at least 50% of the tensile strength of the extruded part as measured by ASTM D638-2a. The extruded parts can be pipe sections.

Abstract: A mat, to be placed beneath an appliance, has a base layer, preferably made of cardboard, a liquid-resistant layer, preferably of plastic, and a layer of batting. The layers are held together by a peripheral rim. The periphery of the mat includes straight and curved portions, such that when two similarly constructed mats are placed in abutment, the curved portions define areas not covered by the mats. Thus, the mats can be placed under an appliance, without disturbing the legs of the appliance, while still covering a majority of the area under the appliance. The mats provide containment for spills of liquid from the appliance, and also define barriers for deflecting food items which might otherwise become lodged beneath the appliance.

Abstract: A method for producing a heat-resistant resin endless belt includes preparing a heat-resistant resin sheet including a first surface and a second surface opposite to each other; forming a first inclined thinned portion at an end of the first surface and a second inclined thinned portion at an end of the second surface as the inclined thinned portion is formed to be gradually thinned toward the end, the end of the first surface being opposite to the end of the second surface; applying an adhesive composition by a screen printing method on at least one of the first and second inclined thinned portions; joining the first and second inclined thinned portions of the sheet to each other; and hardening the adhesive composition, in which the adhesive composition is an additive polymerized silicon adhesive composition containing ferric (III) oxide at between 6.5 and 9.

Abstract: A continuous splicer includes first and second closely spaced rotating cylinders each having a respective cutting element and tape retaining arrangement disposed on its outer periphery. With a depleting web fed by the first cylinder and a replenishing web fed by the second cylinder, an end of the replenishing web is adhesively joined to the depleting web while in motion and the depleting web is severed by the first cylinder's cutting element in forming a splice of the two webs. As the replenishing web depletes, a third web may be inserted on the first cylinder and automatically or manually spliced to the original replenishing web without stopping or re-configuring the splicer. The splicer is capable of delivering the webs at a constant rate or a rapidly changing and/or dynamic cycling rate, and applies relatively low web tension for operation with delicate, narrow and extensible webs.

Abstract: The present invention is a process for making an intermediate transfer member. The process includes forming an endless belt by seaming two ends of a substrate material to form a seam. A smoothing layer is applied on top of the endless belt using a rotary cast process wherein said intermediate transfer member has a continuous seamless top surface. In a preferred embodiment the endless belt is formed by adhering at least two layers of a substrate to form a belt having an inner and outer seam.

Abstract: The present invention relates to an insert for reinforcement of bags made of plastic film, comprising a star-like plastic part having at least three jaws, wherein the insert is adapted for insertion and heat-sealing at a junction inside a three-dimensional bag where at least three plastic films meet, so that each jaw extends in a direction between two films. The invention also relates to a three dimensional bag incorporating such inserts and a method of producing such a bag.

Abstract: Wiping products, such as facial tissues, contain an interior temperature change composition and an exterior hydrophilic lotion composition that can provide a cooling sensation when contacted with the skin of a user. The temperature change composition, for instance, can contain one or more phase change agents that undergo a phase change at slightly elevated temperatures. The phase change agents, in one embodiment, can have a relatively high heat of fusion. When undergoing a phase change, the phase change agents absorb heat and thereby provide a cooling feeling to the skin of a user. The hydrophilic lotion composition may contain a carrier and a thermo-reversible gelling agent. The hydrophilic lotion composition maintains the temperature change composition within the tissue and helps to prevent skin irritation.

Abstract: A prepreg for manufacturing a fibre-reinforced composite material, the prepreg comprising a layer of a layer of fibrous reinforcement fully impregnated by a matrix resin material, wherein at least the surface of the resin material has a viscosity and a tack at room temperature, and each prepreg has a stiffness at room temperature, such that when two of the prepregs are disposed as a vertical stack thereof at room temperature with adjacent resin material surfaces, the adjacent resin material surfaces are unadhered and form continuous air paths therebetween.

Abstract: Clutch pressure or servo motor torque profiling is applied to the powered capstan roll in a corrugator web splicer to control tension in the paper in the accelerating new paper roll to bring the new roll up to line speed more quickly and without causing web tear out.

Abstract: This invention is generally related to catheters for insertion into a body cavity, duct or vessel, and more particularly to a tip or plug for a catheter. The catheter tip is constructed and arranged to form a seal on the end portion of the catheter tube, while a sleeve secured or formed integrally to the tip cooperates with the catheter tube to form a first balloon that encapsulates the tip of the catheter and a second balloon that positions the catheter within the body cavity, duct or vessel.

Abstract: An extrudable polyvinyl chloride composition comprising from 80 to 99.9 percent by weight polyvinyl chloride for use in extruding a first part and a second part, wherein a fusion joint between the first extruded part and the second extruded part is formed by: A) composition at least a portion of a first terminal edge of the first extruded part and a first terminal edge of the second extruded part; B) engaging the melted terminal edges; and C) maintaining pressure between the engaged terminal edges to create a fused joint having a strength that is at least 50% of the tensile strength of the extruded part as measured by ASTM D638-2a. The extruded parts can be pipe sections.

Abstract: A belt welding apparatus is provided for joining together the ends of one or more monolithic conveyor belts. In one form, a belt support is configured to support the belt ends in spaced relation to each other and a non-contact heating device is provided for being disposed between the belt ends to generate thermal radiation for joining the belt ends together. In another form, a drive mechanism is operable to cause relative movement of a pair of platens, for supporting belt ends, toward and away from each other and a heating device between heating and stowed positions. An actuator of the drive mechanism is movable by an operator between at least three operation positions corresponding to three different operation positions of the platens.

Abstract: An off-line stretching device includes a film supply chamber, a tenter section, a relaxation chamber, a cooling chamber, and a winding chamber. The film supply chamber includes a splicing section, where a rear end of a preceding film and a front end of a trailing film are overlapped to be spliced to each other by thermal welding. The thermal welding is performed from above and below the film while a temperature of welding heads of a heat sealer, contacting with the film, is kept at a level equal to or less than a decomposition temperature of the preceding and trailing films. The spliced film is stretched in the tenter section and subjected to heat treatment for stress relaxation in the relaxation chamber, to shrink in a film width direction. Since the shrinkage amount of a spliced area and that of a peripheral area become equal to each other, the occurrence of wrinkles in the spliced area and tears of the film in the peripheral area can be prevented.

Abstract: An adhesive tape applying apparatus includes a stage on which a terminal end portion of a first tape member and a leading end portion of a second tape member are placed so as to be superimposed on each other, an ultrasonic tool in which a plurality of protruding portions are provided on its contact surface that is to be put into contact with the leading end portion or terminal end portion of the superposed tape members, an ultrasonic vibration generator for applying ultrasonic vibrations in a tape's thicknesswise direction to the ultrasonic tool, and a pressing device for making a stage-directed pressing force act on the ultrasonic tool. As a result, the terminal end portion of the in-use first tape member and the leading end portion of the second tape member rolled out from a new reel can be spliced together with a simple, low-cost construction while the possibility of occurrence of trouble in tape feed is eliminated.

Abstract: An apparatus and method are provided for splicing together old and new thermoformable sheets in order to supply a continuous thermoforming operation. The method for joining together thermoformable sheets includes: providing a first thermoformable sheet with a trailing edge and a second thermoformable sheet with a leading edge; forming a terminal edge portion with a hot element along the trailing edge and a complementary terminal edge portion along the leading edge by severing a scrap sheet from each portion; laterally retracting each scrap portion away from the trailing edge and the leading edge; and joining together the first thermoformable sheet and the second thermoformable sheet by interlocking together the terminal edge portion with the complementary terminal edge portion.

Abstract: An improved member for use in welding seamed flexible belts to produce smoother seams having reduced seam thickness. The improved member has a unique configuration, that includes a ridge defined at an end of the member and further includes a V-shape groove or cut defined in the ridge, which helps facilitate welding of the seam overlap region.

Abstract: An ultrasonic welding member for use in welding seamed flexible belts to produce smoother seams having reduced seam thickness. The ultrasonic welding member has a unique configuration, that includes an increased tip surface formed in such a manner that more energy from the horn is dispersed over the seam overlap region for a longer duration of time to produce a smoother and thinner weld.

Abstract: An extrudable polyvinyl chloride composition comprising from 80 to 99.9 percent by weight polyvinyl chloride for use in extruding a first part and a second part, wherein a fusion joint between the first extruded part and the second extruded part is formed by: A) composition at least a portion of a first terminal edge of the first extruded part and a first terminal edge of the second extruded part; B) engaging the melted terminal edges; and C) maintaining pressure between the engaged terminal edges to create a fused joint having a strength that is at least 50% of the tensile strength of the extruded part as measured by ASTM D638-2a. The extruded parts can be pipe sections.

Abstract: The invention relates to a fiber strip splicer for taping machines, formed by two mobile assemblies comprising respective modules (6,6?) between which the capture for joining the fiber strip (3) that is being fed to the application process and a strip (3?) intended to continue with the supply when the first strip ends is possible, the modules (6, 6?) incorporating heating means (10) to activate the fiber strips in the joining, a blade for cutting the excess of the finished fiber strip (3) after the joint, and a catch (16) for securing the end of the new fiber strip (3?) on standby for the joining.

Abstract: An adhesive tape for flying splice of flat web material which has been wound to form rolls, the adhesive tape having at least one carrier layer and a layer of adhesive, at least part of that surface of the carrier layer that faces that layer of adhesive being optically detectable, or optically detectable means being provided between the carrier layer and the layer of adhesive, and the layer of adhesive being designed such that the optical detection can be made through the layer of adhesive. The adhesive tape is modified such that its gloss value, i.e. the ratio of directed fraction and diffusely reflected fraction of the light stream incident on the surface, on the external surface of the layer of adhesive is reduced by at least 20% relative to an unmodified adhesive tape of otherwise identical construction.

Abstract: A method and an apparatus for butt-jointing edges of an elastic material sheet is disclosed. The elastic material sheet is supported such that the two edges to be butt-jointed are oppositely opposed. By moving a pair of counterrotating conical surfaces along the edges, the surfaces of the edges portions are drawn toward the center between the two edges so that the edges are butt-jointed. Between the conical surfaces, a small space is provided so as to form a small rib-like protrusion along the butt-joint. Then, the small rib-like protrusion of the elastic material is pressed down to flatten. Therefore, at the butt-joint interface, the elastic material irregularly interfuses to increase the strength of the butt-joint.

Abstract: The invention relates to a device and a method for impregnating filaments, wherein the filaments form a roving. The device comprises a barrel (10) having at least one groove (12) formed in circumferential direction of the barrel, an inner space formed along the centre axis of the barrel, and at least one recess (16) which forms a connection between the inner space and the groove. The recess includes a cylindrical section (16a), a conical section (16b) and a pocket section (16c). By means of said device and according to the method, a polymer material can be pressed successively from the inner space through at least the cylindrical section and the conical section into the groove to impregnate the filaments of the roving which is drawn through the groove.

Abstract: There is described a process for adhering a first elongate foam element having a first end portion to a second elongate foam element having a second end portion. The process comprises an initial step of melting a first surface portion of the first end portion to produce a first molten portion. Next the first end portion is abutted to the second end portion. Thereafter, the first molten portion is caused to solidify to create a seam bond between the first end portion and the second end portion. Thus, the present invention relates to adhering two elongate foam elements together at their end portions. The bond between the foam elements is created by melting at least a portion of the surface of one or both of the end portions of the two foam buns. This creates insitu a molten region which acts as an adhesive when the end portions of the two buns are abutted or otherwise contacted with each other.

Abstract: The vented shower curtain is a shower curtain having a plurality of air flow vents formed therethrough, allowing environmental air from outside a shower stall to pass into the shower stall, thus replacing heated air that has escaped overhead from the shower stall, and preventing the shower curtain from curling into the shower stall when a user is showering. The vented shower curtain includes at least two panels, with each panel having opposed first and second edges. The second edge of a first panel overlaps the first edge of a second panel, with a plurality of spaced apart seals securing the second edge of the first panel to the first edge of the second panel. Adjacent ones of the plurality of seals define air vents therebetween, thus allowing environmental to pass through the air vents when the bather is showering.

Abstract: An apparatus for splicing an elongate multi-layered workpiece includes: (a) drives and guides cooperating to drive the workpiece along a working path; (b) a cutter for severing the workpiece; (c) a layer manipulator for separating layers; (d) an applicator for applying adhesive; and (e) a deflector unit for deflecting the workpiece from the working path. The cutter effects the severing to present first and second workpiece segments. The layer manipulator effects inter-layer separation in one segment to present an interlayer zone in the one segment. A drive inserts the other segment in the interlayer zone. The layer manipulator urges the layers together to capture the other segment within the interlayer zone to establish a multi-layer structure. A drive and at least one of the workpiece deflector unit and the applicator situate the multi-layer structure adjacent to the applicator for finishing the splicing by applying adhesive to the multi-layer structure.

Abstract: A method for bonding fluororesin films, a wide fluororesin film obtained by the method, and a covering material for agricultural use, made thereof, are presented. A method of bonding films (A), wherein two sheets of films (A) made of a fluororesin, are disposed so that their edges overlap each other, a central part (b1) of the overlapping portion (B) is press-bonded under heating at a temperature within a range of from lower by 5° C. to higher by 20° C. than the melting point of the fluororesin, and then the entire area of the portion (B) is press-bonded at a temperature within a range of from lower by 30° C. to lower by more than 5° C., than the melting point, to weld the two sheets of films (A); a wide fluororesin film obtained by the method; and a covering material for agricultural use, made thereof.

Abstract: The invention relates to ultrasonic gap welding of flat woven fabrics. Specifically, the invention relates to a method of ultrasonic welding the seam termination yarn ends of a fabric using a controlled gap. A mechanical stop may be employed to control the distance or gap between the horn and anvil to a predetermined level based on the depth of welding and amount of weld energy. By adding another degree of control, the ultrasonic gap welding technique of the present invention is able to achieve fabric seams that are stronger than conventional seams, and even those enhanced with gluing, and is conducive to formation of fabric seams by spot welding or along the termination yarn ends of the fabric.

Abstract: Belt material is wrapped around a small diameter mandrel. Instead of cutting the belt to length, the material is then continued to be wrapped around the mandrel, forming a belt material overlap, and held under tension. An ultrasonic welding horn is then traversed across the width of the belt overlap. As this horn is traversed across the overlapped joint, the horn not only joins the belt material wrapped around the mandrel but, as the trailing edge is held under tension, the horn also separates or severs the trailing edge of the material from the welded seam.

Abstract: An apparently seamless lengthened bamboo sheet is formed by lengthening a plurality of bamboo strips or blanks and assembling a plurality of lengthened bamboo strips or blanks together. A slot is formed on at least one end of the bamboo strips or blanks in direction of length, and a tenon corresponding to the slot is formed on the same end; the tenon on one bamboo strip or blank is embedded into the slot on another bamboo strip or blank. The tenon and slot are mutually matched and the two bamboo strips or blanks are engaged to each other. A method to manufacture is the apparently seamless lengthened bamboo sheet includes: forming a slot and a tenon on the end of bamboo strips or blanks; embedding a tenon at one end of one bamboo strip or blank into a slot on one end of another bamboo strip or blank; assembling and gluing a plurality of lengthened bamboo strips or blanks in direction of width or thickness; forming the bamboo sheet by a common process including pressing.

Abstract: A particulate filter includes first and second honeycomb substrates. An outlet face of a first substrate is positioned against an inlet face of a second substrate such that channels extending longitudinally through the substrates are aligned to form continuous channels. A continuous skin is joined to each of the substrates to form a unified substrate. A portion of the continuous channels are selectively plugged to form a wall flow filter.

Abstract: The disclosure is directed to a barrier structure including a fluoropolymer layer and a polymeric layer. The barrier structure has a chemical permeation breakthrough detection time greater than about one hour for hazardous chemicals as measured by ASTM F739. The disclosure is further directed to a method of forming the aforementioned barrier structure. The barrier material is designed to be suitable for construction of shelters, clothing, containers and other articles requiring barrier properties.

Abstract: A composite structural member includes first and second composite sections spliced together by an overlapping composite splice member.

Abstract: A device for splicing the free end of a strip of web material to a homologous strip of web material being supplied includes a first moving element and a second moving element, each of which is able to function alternatively as retention structure for the free end and as guiding structure for the web. The moving elements are, at least in part, translatable with respect to one another for connecting the free end to the web, performing the operation of splicing. The first and the second moving elements are selectively orientable between a position of opening, in which the moving element has a gripping formation exposed to receive the free end, and a position of closing, in which the gripping formation faces the other moving element of the device to allow the free end to connect to the web.

Abstract: A stitchless seam comprises a first portion of material folded upon itself proximate an edge to define an overfolded end portion having overlapping edge and nonedge portions and a second portion of material positioned adjacent the overfolded end portion. A first portion of adhesive is interposed between the overlapping edge and nonedge portions and a second portion of adhesive is interposed between the second portion of material and the edge portion of the overfolded end portion. Energy may be applied, via an ultrasonic seam bonding machine or other means, to activate the adhesive portions. The seams may be used for items made of waterproof breathable laminate fabric material, such as garments and sports articles.

Abstract: Substrate material processing equipment includes: a substrate material conveying section receiving a substrate material from a first line and conveying it to a second line; a first substrate material dividing section dividing the substrate material; a substrate material recovery section recovering the substrate material from its start edge formed by division; a substrate material supply section supplying a substrate material to an end edge of the substrate material which is formed by division; a first substrate material joining section joining the end edge of the substrate material to a start edge of the substrate material supplied from the substrate material supply section; a second substrate material dividing section provided between the substrate material supply section and the first substrate material joining section; a third substrate material dividing section provided between the first line and the substrate material recovery section; and a second substrate material joining section joining a start edge

Abstract: A connection method for interconnecting end portions of a thermoplastic resin long body in which conductive unstretchable members are embedded within the thermoplastic resin along a longitudinal direction, wherein the unstretchable members in each of specific sections in the both end portions of the thermoplastic resin long body are heated using an induction heating portion so that the thermoplastic resin coating the unstretchable members is removed by melting for the unstretchable members to be exposed, after which the both end portions are interconnected while they are held in a state where the unstretchable members being exposed in the respective end portions are butt-connected to each other.

Abstract: A labeling system may include a labeling device which applies labels to objects, for example, containers, and a loading device which is arranged upstream of this labeling device and which supplies the labeling device with labels. The loading device may comprise a transport device which transports a second label strip and comprises at least two carriers for first label strips wound onto label rolls. The carriers may be arranged next to one another on holding devices. A joining unit may be provided which can be displaced between the carriers in a first movement direction and which joins sections of the first label strips, which are arranged on the carriers, to sections of the second label strips, which are guided in the transport device.

Abstract: A flat belt 20 is prepared. A first belt end 21 of the belt 20 has a finger shape and a second belt end 22 of the belt 20 has the complimentary shape to the first belt end 21. An adhesive is applied to one of an end face 21K of the first belt end 21 and an end face 22K of the second belt end 22 or to both. Next, both end faces 21K and 22K are butted. The butted portion B of the first and second belt ends 21 and 22 are pressed in the belt width direction. Due to this, the end faces 21K and 22K are bonded by the adhesive so that the first and second belt ends 21 and 22 become joined.

Abstract: A primer formulated with a colorless dye detectable only under black light is provided. The present invention is non-detectable on a porous surface and color does not appear over time upon exposure to natural or synthetic lights. Under black light, sometimes referred to as ultra violet energy or long wave black light, the colorless dye appears as purple. However, once the black light is removed, the primer ceases to glow and returns to its natural, colorless state.

Abstract: A method of joining two ends of a fabric for use in a paper machine, carried out using a joining assembly, includes the steps of: placing a first end of the fabric on a first portion of a pin plate, the pins in the first portion of the pin plate extending into the first end; placing a second end of the fabric on a second portion of the pin plate such that the first end and the second end are in close proximity to each other in a join area, the pins in the second portion of the pin plate extending into the second end; and joining the first end and the second end in the join area. The method results in a perforated (and therefore permeable) join area.

Abstract: An adhesive system for flying splice (“parting system”), suitable for producing an adhesive bond on a substrate that can be parted again in such a way that adhesive residues remain neither on the reverse of the adhesive tape nor on the substrate in the region of the parted adhesive bond.

Abstract: An adhesive bonding system joins flat webs when changing rolls of such webs. The adhesive bonding system comprises two adhesive tape boundary edges, and further comprises a top carrier layer and a bottom carrier layer, a flat connecting element that connects the two carrier layers to one another and is suitable for opening the connection under the conditions of a static or flying roll change. At least one of the boundary edges of the connecting element does not extend in a straight line, and a straight-line emphasis line is defined in relation to this boundary edge, the emphasis line of this boundary edge extends along a preferential direction, and this boundary edge has a multiplicity of regions lying on one side of its emphasis line and also a multiplicity of regions lying on the other side of its emphasis line.

Abstract: An adhesive tape for flying splice, having a left and right boundary edge, at least one main carrier and a first layer of self-adhesive on the obverse of the main carrier, the reverse of the main carrier bearing a parting system suitable for effecting an adhesive bond to a substrate that can be parted again in such a way that sticky residues are left neither on the reverse of the main carrier nor on the substrate in the region of the parted bond, the parting system being constructed in the form of a multiply interrupted stripe having a plurality of segments that extends in the longitudinal direction of the adhesive tape, the individual segments having less of an extent in the longitudinal direction of the adhesive tape than the adhesive tape itself, and the parting system being suitable for effecting the parting process without the main carrier being damaged.

Abstract: Apparatus for continually joining paper webs, comprising a device able to compress the webs (5,6) onto an impression cylinder or roller (4) while the webs advance toward an outlet section of the apparatus. The compressive device includes a roller or cylinder (2) which exhibits a hard outer surface (20) supported by an underlying elastic surface (23).

Abstract: An apparatus for switching a strip feed between supply rolls has first and second supports displaceable in a direction independently parallel to each other between an outer reload position and an inner supply position and respective first and second shafts on the supports extending parallel to the direction and adapted to carry respective rolls of strip. The strip is pulled off one of the rolls in the supply position of the respective support and fed continuously or in steps to a user. Respective cutters on each of the supports cut the respective strip, and respective gluers on each of the supports glue a leading end of the respective strip to a trailing end of the strip of the other roll.