Abstract: The splice of the present invention includes a web having a first free end and a second free end wherein the first and second ends are positioned proximal to each other. The web encloses one or more holes adjacent to each end. The web includes a top side and an opposing underside. The splice also includes an underside patch that is adhered to the web so that the underside patch covers the hole or holes and covers each of the free ends of the web. The underside patch is adhered to the web by a reversibly releasable layer. The upper side patch is positioned substantially parallel to the underside patch. The upper side patch contacts the underside patch through one or more of the holes thereby strengthening the splice.

Abstract: A method and apparatus in which a succession of continuous films each composed of a support film, a photosensitive resin layer and a cover film laminated one above another are joined end to end and fed continuously while allowing the cover film to be separated. While the trailing end of a preceding continuous film is held by suction on a first suction device, the leading end of a succeeding continuous film drawn out from a succeeding film supply roll is bonded to a part of the adhesive surface of an adhesive single coated tape previously held by suction on a second suction device, and the remaining part of the adhesive surface of the adhesive single coated tape is forced against the trailing end of the preceding continuous film being held on the first suction device to thereby join the leading end and the trailing end via the adhesive single coated tape without forming an overlap.

Abstract: A splicing gauge connects a film to a leader with high reliability. A film container support is provided at one end of a leader supporting surface of a splicing table. A fixed blade and a movable blade are provided between the container support and the leader supporting surface. A film pulled out of a film container is cut by moving the movable blade toward the fixed blade. A leader placed on the leader supporting surface is positioned relative to the cut edge of the film. A splicing tape is stuck on both the leader and the film. The leader is then turned over by 180.degree. about the film container to support it on a backside splicing table provided at one end of the container support. Another splicing tape is put on the backsides of the leader and the film.

Abstract: A method and a device for joining rubber sheets. A pressing disk having a shape that a cutting disk is cut at an edge thereof by about 0.7 mm to 1.0 mm joins with pressure edge parts of unvulcanized rubber sheets which are stackably aligned with one another and clamped. The cutting disk cuts the joined edge parts of the rubber sheets. Another pressing disk having a shape that the edge of the cutting disk is cut by about 0.7 mm to 1.0 mm is moved on the cut edge parts along the cutting line in the same manner as the cutting disk, thereby securely joining the joined parts by pressing them again.

Abstract: An embodiment of the present invention is a method for splicing together a pair of drip irrigation hoses using splicing means internal to the pair of hoses. The pair of hoses are joined in axial alignment to form a junction with the splicing means interposed internal to each hose. A splicing means is bonded to an inside surface of each hose to fashion the pair of hoses and splicing means into a unitary structure using means for fixing the splicing means to another surface. A seal is formed using means for sealing circumferentially at the junction to create a water-tight seal.

Abstract: An input festoon is provided in a web supply apparatus for automatically splicing a relatively stiff web of material such a liner board for making corrugated board. The input festoon includes a dancer roll which is movable along a track to allow storage of a ready web as the ready web is pre-accelerated by an accelerator roll to a running speed prior to creation of a splice at a splice head. Tail grab sensors are mounted on the apparatus above the web between the input roll and the splice head adjacent the input roll. The tail grab sensor detects tears or breaks in the web and provides an electrical signal to initiate a splice. A vacuum box including a pivotable vacuum bar is provided for creating a high speed butt splice. A method of creating a high speed butt splice using the vacuum box is also presented.

Abstract: A non-alternating lap splicing apparatus for successively splicing rolls of web material is enclosed in a bifurcated housing with a separate access door for each of two compartments therein. There is a driven spindle in each of the compartments, each for supporting a stock roll of web. There is a separate film inlet path for each of the stock rolls. An oscillator assembly having a cutting knife and an ultrasonic horn means is mounted in the housing. The web outlet path is through the oscillator assembly. When one of the rolls is nearly spent, that roll is automatically stopped and the web is cut by the knife to create a trailing end. The oscillator assembly then pivots to align with the film inlet path for the stock roll within the other compartment. The lead end of the new stock roll is automatically positioned under the trailing end of the spent stock roll and the ultrasonic horn bonds the webs together. The overlapping lap of the splice is always trailing and on the same side of the web.

Abstract: A method and web splicing assembly for heat-seal splicing together a trailing end of running first, two-sided plastic material web and a leading end of a second, two-sided plastic material web, and then for heat-seal splicing together a leading end of third, two-side plastic material web and the trailing of the then running, second web so that after the webs have been spliced and are running, like surfaces of the webs face the same direction. The web splicing assembly includes first and second splicing sub-assemblies. The first sub-assembly has a first, relatively movable slide bar and a first, relatively fixed nip bar. The second sub-assembly has a second, relatively movable slide bar and a second, relatively fixed nip bar. The sub-assemblies are each movable between a first position and a second position. In their first positions, the sub-assemblies are disposed so that portions of the webs to be heat-seal spliced are clamped between the first slide bar and the second nip bar.

Abstract: A tape joining device has a fixed bearing member 24 and a movable pressing member 46 arranged respectively at opposite sides of the portions of two tapes T to be joined, and a heater 88 for heating the pressing member 46. The pressing member 46 is attached to a movable body 44 for pressing the pressing member 46 against the bearing member 24 with the opposed tape portions positioned therebetween. The pressing member 46 is pivotally movable relative to the movable body 44 about an axis extending in parallel to the longitudinal direction of the tapes T.

Abstract: A splicer bed has a leader support on a top thereof. An opening is provided in one end of the leader support. A knife mounting base is arranged to project from the opening and is provided at one end with a cartridge holder. The knife mounting base has a leader positioning head provided on the other end thereof for determining the position of a leader. A stationary knife is mounted to the leader positioning head. A movable knife is mounted for pivotal movement to the stationary knife. A film holddown plate is pivotably mounted to the knife mounting base. The knife mounting base is provided with a pair of punches which are arranged slidably and can be lowered by the film holddown plate. Before the leading portion of a film is drawn out from a film cartridge loaded in the cartridge holder is held under the film holddown plate, the downward movement of the film holddown plate causes the punches to cut two notches in both side edges of the film.

Abstract: A tape joining device has a fixed bearing member 24 and a movable pressing member 46 arranged respectively at opposite sides of the portions of two tapes T to be joined, and a heater 88 for heating the pressing member 46. The bearing member 24 has a bearing surface 31 opposed to the tape portions. The pressing member 46 has a pressing face 67 and a thermal blade 71 both opposed to the bearing surface 31. The pressing member 46 is attached to a movable body 44. The bearing surface 41 is formed with a tape receiving groove 32 extending widthwise of the tapes and positioned away from a blade bearing portion of the surface longitudinally of the tape. A tape pushing member 48 is so attached to the movable body 44 that one end thereof is movable into or out of the groove 32.

Abstract: An apparatus for splicing webs with little or no reduction in the operating speed. The apparatus includes a first pivoting member and a fixed opposing element, a second pivoting member which pivots about the same axis as the first pivoting member, a pair of nipping rollers mounted on the pivoting circle of an outer surface of the second pivoting member, a splicing device for the webs, a device for guiding the second web between the second pivoting member and the opposing element, and a cutting device for excess web material. The apparatus first guides the second web between the second pivoting member and the opposing element. Thereafter the second pivoting member and the opposing element converge to clamp the second web therebetween and an adhesive is applied to the second web. Next the first pivoting member pivots such that the second pivoting member, the opposing element, and the second web work in cooperation to contact the first web to the second web for splicing.

Abstract: An apparatus for forming a near-seamless splice between a first polymeric web portion and a second polymeric web portion includes a frame, a clamping mechanism for clamping the first polymeric web portion and the second polymeric web portion in a desired position of registration, a combined welding and cutting mechanism for simultaneously (a) welding the two web portions together by forming a weld line at which the two web portions are fused; and (b) cutting through the two web portions at the weld line. This creates a near-seamless splice between the two web portions. In another aspect of the invention, the apparatus is mounted on a portable carriage that permits a user to quickly and easily move the entire apparatus into and out of position on a production line. The invention has particular utility for removing defective portions from a printed polymeric web having a repeating pattern thereon, such as the wrapping that is used for packaging absorbent consumer paper products such as paper towels and napkins.

Abstract: A continuous tape supply apparatus is provided which includes plural tape sources from which tape can be supplied to the tape applicator machine, a tension control means for providing the tape from the continuous tape supply apparatus at a substantially even tension under an indexing demand, and a splicing mechanism which is simpler in design and operation and which reliably causes a changeover of tape from one source to another. Once one source is depleted, the apparatus automatically switches to the second source, after which, a new supply can be substituted for the depleted supply and the apparatus made ready for the next subsequent changeover.

Abstract: A film splicer is provided in which in connecting a first film (12) and a second film (15) to each other, a residual portion cannot be formed rearwardly of a connection point of the first film (12). The film splicer includes a pair of clamping means for clamping the first and second films (12 and 15), at least one heater (67) for heating both the films (12 and 15) for heat-sealing thereof in a state in which both the films (12 and 15) have been clamped by the clamping means, and at least one cutter (71, 72) for cutting at least one of the first and second films (12 and 15) in a state in which both the films (12 and 15) have been clamped by the clamping means. The film splicer further includes a pair of arms disposed advanceably and retreatably, and the clamping means, the heater (67) and the cutter (71, 72) are mounted to each of the arms. Thus, a residual portion left rearwardly of the connection point of the first film (12) is cut away by the cutter (71, 72).

Abstract: A method of thermally splicing a first zipper to a second zipper, and the thermally formed splice produced by this method, are provided. The first and second zippers each include a male profile and a female profile adapted to interlock with each other. The splice is prepared by thermally fusing an end section of the male profile of the first zipper to an end section of the male profile of the second zipper and thermally fusing an end section of the female profile of the first zipper to an end section of the female profile of the second zipper. Alternatively, the splice can be prepared by thermally fusing the end sections of two closed zippers. The male profile of each zipper includes a male locking member, and the female profile of each zipper includes a female locking member.

Abstract: A heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a semi-crystalline polymer and selected from the group consisting of polyolefins prepared from monomers containing at least 2 carbon atoms; from about 20 to 300 parts by weight of one or more non-black mineral fillers per 100 parts of the polymer; and from about 20 to 150 parts by weight of a processing material, per 100 parts of the polymer. The non-black mineral fillers may include hard clays, soft clays, calcined clays, chemically modified clays, mica, talc, alumina trihydrates, calcium carbonate, titanium dioxide, amorphous precipitated hydrated silica and mixtures thereof. The processing material may be any non-volatile oil, i.e., a paraffinic processing oil.

Abstract: Endless coated abrasive articles having a splice. In general, the coated abrasive articles comprise a backing having abrasive grains bonded thereto by one or more layers of binder. This invention also provides a method of making the splice by using radiation curable adhesives, e.g., acrylated urethanes, and radiation energy to cure the adhesives. The radiation curable splice adhesive essentially solvent-free. Consequently, the time required for the solvent to flash off is eliminated and solvent removal is no longer an environmental concern. By utilizing a source of radiation energy, the splice adhesive can be solidified in less than one minute. Because the splice adhesive is fully solidified, coated abrasive belts can be packaged immediately after the splice is formed.

Abstract: A method for making a two-tone vinyl skin cover for an automotive interior trim panel is provided including heating a first vinyl skin to a working temperature; heating a second vinyl skin to a working temperature; stretching the first vinyl skin over a first male vacuum mold, the first mold having a first welding blade along a translationally separable part line; applying a vacuum via the first mold to the first vinyl skin; stretching the second vinyl skin over a second male vacuum mold, the second male mold having a second welding blade along a translationally separable part line aligned with the translationally separable part line of the first mold; applying a vacuum via the second mold to the second vinyl skin; heating the first and second vinyl skins through the first and second welding blades; and abutting the first and second welding blades together under a pressure force to heat weld the first and second vinyl skins together until such time as the first and second vinyl skins are welded to one another

Abstract: An auto-splice device includes a cutting conveyer on which a sheet is cut to produce a fabric, a vacuum take-out unit for taking the fabric from the cutting conveyer onto a take-out conveyer, and a splice mechanism for splicing the fabric to another fabric on the take-out conveyer. A sheet end position measuring unit controls the location at which the fabric is held by the vacuum take-out unit.

Abstract: A method and apparatus for continuously supplying thermoplastic webbing to an application apparatus is disclosed. In one aspect of the invention, first and second webs of thermoplastic material are held stationary and heat spliced together upstream in a line operation while a downstream segment of the thermoplastic webbing is continuously supplied to an application apparatus downstream in the operation. The heat splicing step is carried out by bringing together first and second opposable splicer clamps to form an overlapping area between the first and second webs and applying a heat impulse to the overlapping area to bond the webs together.

Abstract: An auto-splice device includes a cutting conveyer on which a sheet is cut to produce a fabric, a vacuum take-out unit for taking the fabric from the cutting conveyer onto a take-out conveyer, and a splice mechanism for splicing the fabric to another fabric on the take-out conveyer. A sheet end position measuring unit controls the location at which the fabric is held by the vacuum take-out unit.

Abstract: A conductive woven material (2) being conductive, and preferably equally conductive, in all directions is made using woven fabric (4) having conductive weft fibers (10). The material is produced by cutting the woven fabric at a first, acute angle (19) to the side edges (12, 14) to produce trapezoidally-shaped cut fabric pieces (18). The cut fabric pieces are then reoriented so that the former side edges of the fabric are placed to abut one another to create a reconstructed fabric (20) in which the weft fibers are at acute angle (22) to the length of the reconstructed fabric. Two layers of reconstructed fabric (24, 26) are placed one upon the other, with one upside down, so that the conductive weft fibers are at an angle, preferably 90.degree., to one another so to create the conductive woven material. The conductive woven material can be used to form, for example, conductive laminates or conductive honeycomb material.

Abstract: A tape joining apparatus comprises a transport device for transporting a preceding tape via a joining station, a fixed holder disposed on one side of a path of transport of the tape at the joining station for releasably holding the leading end of a subsequent tape with an adhesive applied to the leading end so as to oppose the leading end to the preceding tape, a movable body disposed on the other side of the path and positionable at the joining station as a lower limit of stroke thereof, a movable holder supported by the movable body and movable in a direction orthogonal to the path for holding the rear end of the preceding tape at an upper limit of stroke of the body and releasing the preceding tape at the lower limit, and an assembly for pressing the movable holder against the fixed holder at the joining station. The transport device has a movable guide roller attached to the movable body for the preceding tape to be passed therearound.

Abstract: Continuous strip materials supplied in rolls are spliced automatically at the moment of use by a series of steps in which the leading end of the strip decoiled from a new roll is arranged first on the locating and striking face of a suction bar capable of movement between an at-rest position and a splicing position, whereupon the trailing end of the depleted strip decoiling from the roll still in use is restrained against a fixed reference surface coinciding with the splicing position, a transverse cut made through the trailing end of the depleted strip, and the leading end of the new strip brought into contact with the area of the trailing end of the depleted strip terminating in the cut, and the joined ends are then secured by heat-sealing or by applying an adhesive or a double-sided sticker.

Abstract: A method and device for splicing narrow strips, whereby a first portion of a first strip is superimposed on a second portion of a second strip; and an adhesive connecting element is folded in a U about the strip portions.

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: Apparatus and method for joining, while stationary, an expiring web to a new web in such a way that the joined webs lie in one plane. To this end, the new web and the expiring web are brought together and are simultaneously cut through along one cutting line. Subsequently, at least on one side, a bonding strip is applied over the web parts to be joined. The beam-shaped unit has a first contact surface for the new web. In line therewith and on the same side of the travel path, a second contact surface is arranged for the expiring web. That part of the new web which is located downstream of the cutting line, is situated at a distance from the expiring web. By retaining each of the web parts to be joined against an associated contact surface, it is possible to achieve an accurate join.

Abstract: Webs (12, 14) to be spliced are provided with end edges (24, 26) which are positioned with an overlap (38), covered by a metal buffer strip (60) and joined by application of ultrasonic energy (54, 62, 64).

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 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: In a device for splicing two thin film web portions comprising a roll supplying a web of film material, a roll for winding a web of film material and a splicing table adapted to be subject to sub-atmospheric pressure and having a first groove therein defining a cutting line and a reel for applying a splicing tape to unite said first and second webs of film, the splicing table includes a second groove that is parallel to the first groove, both grooves being perpendicular to the longitudinal direction of the webs of film, the vacuum table being thus split into three regions each individually adapted to be put under sub-atmospheric pressure, the device being useful for highly accurate splicing of webs of ultra-thin film material.

Abstract: A sliding box for placing a film of insulating or draining material within a trench has a front section for receiving a roll of film and a rear section for delivery of the film into the trench. Between the front section (2) and the rear section (13), the box has a connecting chamber (4) provided at each end with a pair of rollers (5-6, 7-8) mounted within said chamber by means for varying the lateral spacing of the rollers of one and the same pair between an active position in which the two rollers grip the film (3) and a position of relative withdrawal in which the film passes freely between the rollers.

Abstract: A method of making an optical scanner is disclosed that includes light transmitting and receiving optical fibers to illuminate and scan an image to be copied, transmitted or stored.

Abstract: The ribbon loading container and method includes an elongated housing forming an envelope and having front and rear open ends. A ribbon dam is slidingly received within the envelope of the housing and has a slot therethrough for the passage of the ribbon. The ribbon dam further includes tension clips which frictionally engage the ribbon passing through the slot and frictionally engage the sides of the housing. A drive and driven roller are rotatably disposed adjacent the open front end of the ribbon loading apparatus for introducing ribbon into the envelope. The ribbon dam is initially positioned adjacent the open end of the ribbon loading container such that it applies a back pressure to the incoming ribbon being stuffed into the envelope by the drive and driven rollers. As the envelope is filled with inked ribbon, the ribbon dam slides within the ribbon loading container until the pre-selected length of ribbon has been loaded in the container.

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: A method for assembling a light wave guide switch calls for a switch having two groups of front ends of light wave guides. Each group of front ends faces the other group of front ends and each group is disposed on opposite sides of a coupling plane running perpendicular to the longitudinal axes of the light wave guides. The switch also has centering devices that extend parallel to each other, without offset, from a first end of a base plate to a second end of the base plate. The centering devices secure a plurality of light wave guides each extending through the coupling plane when each of the wave guides forms a single component. The method includes the steps of coupling the first end of the base plate to a stationary part of the switch and coupling a second end of the base plate to a drivable part of the switch while the switch is in the given switching position.

Abstract: Disclosed is a novel process for splicing webs of pressure sensitive laminate material. When webs of pressure sensitive laminates are spliced by conventional methods and wound into rolls, the resultant splices must be located and removed when the roll is later converted into pressure sensitive products. The novel splice is achieved by eliminating the top tape used in a conventional splice and overlapping a face sheet of one laminate web over the other laminate web to join the webs. For many processes, this novel splice is printable and does not have to be edited out, and it is at least as strong as those made with tapes. Also disclosed is a novel spliced pressure sensitive laminate.

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: There is provided a method and apparatus for adjoining two ends of a length of impact printer ribbon to form a continuous loop of ribbon. A welding fixture, including a welding anvil, ironing anvil and ultrasonic horn are provided to join the ribbon ends. Tensioning slides are provided to grip the ribbon ends and tension the ribbon during welding operations. A microprocessor controls a series of pistons, switches and solenoids to control the welding sequence.

Abstract: The trailing end of a web of photosensitive material which is being unwound from a core in a cassette is connected to the core by an elongated strip. A monitoring device is placed adjacent the path of movement of the web from the core to the nip of two advancing rolls, and the monitoring device is activated as soon as it detects the strip. The motor for the advancing rolls is driven for an interval of time and at a speed such that, when the monitoring device detects the trailing end of the strip, the web is advanced through a predetermined distance to locate its trailing end at a splicing station where the trailing end of the web is to be spliced with the leader of a next-following web.

Abstract: A method for of connects cut edges of a thermosensitive transfer film having a plurality of color frame units each comprising at least a yellow frame, a magenta frame and a cyan frame arranged in a straight line in the order of the yellow frame, the magenta frame, and the cyan frame where a frame includes a defective part. Each frame has a transfer starting mark. The method includes the steps of cutting the film at a position of the yellow frame precedent to the magenta frame so that the transfer starting mark of the yellow frame is broken, cutting the film at a position rearward of the cyan frame and forward of the transfer starting mark of a succeeding yellow frame so as to remove the magenta and cyan frames from the film, and connecting both cut edges of the film with each other with the transfer starting mark of the yellow frame precedent to the magenta frame maintained.

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: Apparatus and method for joining two ends of plastic optical fibers after the ends have been formed, preferably cut at a bias. The ends are pushed together within a tightly fitting quartz tube and their juncture is heated, by a resistance wire filament which surrounds the tube, to melt the ends and form a splice. The quartz tube is split into a top member and a bottom member and the spliced optical fiber is removed from the tube by opening the two tube members.

Abstract: The invention relates to a device for cutting, according to a saw tooth pattern, the extremities of veneer tapes between two pairs of upper and under knives and for gluing those extremities under pressure by using i.a. a pression beam on which the necessary pressure is applied by a hammer of an oscillable press and which, for that purpose, is beared in a vertically displacable bridge, characterized in that the device comprises the following elements:(a) means for locking the hammer (13) of said press with respect to said bridge (2):(b) under and upper knives which cut the veneer tapes at different heights;(c) means for bringing said hammer (13) in its rest position when it is delocked with respect to said bridge (2);(d) a pneumatic cylinder (28) for pulling down said bridge (2);(e) means for neutralizing the pression exerted by springs on the under knives.

Abstract: Known methods and devices for overlap-welding of printing by means of ultrasonics have been developed further to enable problem-free use, particularly with wire printers also having thin wires, and to enable welding of multi-color ribbons. The invention also permits more durable components. In the method according to the invention, the printing ribbon to be joined is retained in a non-overlapping fashion on movable plates, preferably by means of a vacuum, and is severed by a cutter, preferably by means of an ultrasonic sonotrode and cutting anvil, and is then moved so that the ribbon ends are in overlapping position, and then welded, preferably with a structured part of a sonotrode on a wielding anvil which is likewise structured. A device according to the invention has two plates with ribbon-retaining means, a cutter, and a joiner, such as a welder, for joining the two ribbons ends. The plates are movable to at least two positions suitable respectively for the cutting and joining functions of the machine.

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 length of tape is drawn off a reel, passed over the cutting/connecting section of a splicer, passed through a temporary storage vessel and looped back so as to pass over the cutting/connecting section again. Tape clamps hold the two layers of tape on the cutting/connecting section which are then cut. One of the tape clamps is withdrawn while an applicator applies a piece of adhesive tape in a manner which splices a continuous loop of tape. To remove a superfluous portion of the tape from the continuous loop, the loop is moved to a position wherein one end of the superfluous length is located over the cutting/connecting section. The tape is clamped and cut. One of the two tape clamps then lifts the now open end of the loop clear and the superfluous portion is spliced to the tape on a supply reel. The reel is rotated in manner which winds the superfluous length thereonto until the other end of the superfluous length is drawn to the cutting/connecting section.