Abstract: An apparatus is provided for handling a web of material fed from a roll. When the roll is larger than a selected amount, a roll contacting belt contacts the outer surface of the roll to aid in rotating the roll. The roll contacting belt is speed-responsive to a tension sensing means. Once the roll decreases to the selected amount, the roll contacting belt is disengaged from the roll and a core brake controls the speed of the roll. This arrangement reduces web upsets caused by out of round new large rolls and eliminates telescoping due to the action of the belt against small diameter rolls. In the illustrative form of the invention, the apparatus provides a continuous supply of web material by handling a first roll from which web material is being fed through an infeed roller and a nip roller, and a second roll from which web material is fed after the web material of the first roll has expired.

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: The disclosed butt splicing apparatus and method is adapted to be used with rolls of material supported on turret-type roll unwind stands. A splicer embodying the invention includes a nip assembly, a new web preparation assembly, a new web and tape holding assembly, and a web cutting and adhering assembly. The nip assembly serves to clamp the expiring web during a splicing operation. The new web preparation assembly serves to prepare the leading end of the new web for the splicing operation. The new web and tape holding assembly serves to hold a portion of the new web, immediately upstream of its leading end, and to hold a strip of adhesive tape in preparation for the splicing operation and during the splicing operation itself. The web cutting and adhering assembly serves to cut the expiring web during the splicing operation and to cause the cut part of the trailing end of the web and the leading end of the web to adhere to the adhesive tape simultaneously as the cutting of the expiring web occurs.

Abstract: Reel unwinder (6, 7) for ensuring the continuous supply of an endless web (21), comprising, on a stand (25 to 28), two spindles (4, 5) for two reels, one in course of being unwound and the other, after the removal of the residue of used-up reel, receiving a full reel, means of maintaining a suitable web tension (9, 10, 11), means acting on its spindle to accelerate the full reel to the linear unwinding speed, the end of the full reel receiving the strip of adhesive, means of laying the web from the nearly used-up reel onto the full reel in order to effect bonding between the webs, and knives (17, 18) for cutting the web coming from the used-up reel.

Abstract: Apparatus for use in continuous web reeling apparatus for connecting a web to a winding roll as the web is being unwound from an unwinding roll by deflecting a run of the web and pressing the deflected web against joining tape provided on the surface of the winding roll. The apparatus includes a plurality of axially aligned pressing members, a fluid-actuated expandable actuating device for exerting pressure on the pressing members to cause the pressing members to move against the web to exert a joining force on the web to press the web against the joining tape provided on the surface of the winding roll, and a spring device for returning the pressing members to their original position after the web has been connected to the winding roll.

Abstract: A semi-automatic operating and also adjustable device for interconnecting the opposite ends of two material bands originating from two individual webs, one web of which is nearly terminated the other being the starting one, the connection being made with an adhesive tape attached to only one and the same side of both bands, said device comprising two pinch rollers, cutting knives and idler rollers, the band material being either paper or textile, to be used for a printing operation.

Abstract: An apparatus is provided for handling a web of material fed from a roll. When the roll is larger than a selected amount, a roll contacting belt contacts the outer surface of the roll to aid in rotating the roll. The roll contacting belt is speed-responsive to a tension sensing means. Once the roll decreases to the selected amount, the roll contacting belt is disengaged from the roll and a core brake controls the speed of the roll.

Abstract: An apparatus is provided for handling a web of material fed from a roll. When the roll is larger than a selected amount, a roll contacting belt contacts the outer surface of the roll to aid in rotating the roll. The roll contacting belt is speed-responsive to a tension sensing means. Once the roll decreases to the selected amount, the roll contacting belt is disengaged from the roll and a positive drive controls the speed of the roll. This arrangement reduces web upsets caused by out of round new large rolls and eliminates telescoping due to the action of the belt against small diameter rolls.

Abstract: An automatic paper roll pasting apparatus, for sequentially and continually feeding a continuous strip of paper, or a paper web, to a rotary press from a plurality of paper rolls, having a paper roll support capable of accommodating at least two paper rolls, a mechanism for measuring a value relating to the diameter of a paper roll newly mounted on the paper roll support, and a mechanism for controlling the revolution of the new paper roll, and constructed so that the revolution of the new paper roll is caused to agree with a desired revolution calculated from the revolution of a paper web which is currently fed to the rotary press, thus enabling the new paper roll to be pasted to the running paper web automatically.

Abstract: The present invention relates generally to equipment for a printing system for newsprint and the like and, more particularly, to a device for automatically preparing leading web ends of paper rolls for automatic web pasting.A device embodying the present invention is supported generally from a ceiling of a room and extends downwardly when used.

Abstract: A method of and device for attaching a web of material rolling off to a processing machine to the beginning of a fresh web that is wound on a reel. To provide a method that will inexpensively and rapidly ensure a reliable attachment between the two webs, the first web is separated upstream of a stored section with the processing machine turned off and the separated section at least partly reserved, the section of web with the second web is then forced into contact, and the end of the reserved web section attached to the beginning of the second web as it arrives by releasing the reserved web section with the processing machine in operation. The device comprises an upright with the replacement reel mounted on it, a mechanism for reserving a supply of web, and a mechanism for cutting the web.

Abstract: In a device for splicing the beginning of a paper strip wound on a new reel, especially a cigarette paper strip, to the end of the paper strip on an off-winding reel. The lead of the paper strip of the new reel is picked up by a gripping mechanism and is fed to a stamping device where the strips are connected by a grid of uniform pyramids. The device facilitates completely automatic reel replacement and gives a very tight but still very flexible connection of the paper strips.

Abstract: Apparatus for continuously supplying a web of sheet material wound on rolls includes a conveyor which carries a roll from a loading station to a splicing station and then to an active or running station. While a running web is being drawn off a roll at the active station, a standby roll is loaded on the conveyor at the loading station and then it is advanced to the splicing station. A stationary core brake located at the active station is responsive to the tension of the running web and applies a drag to the core on which the web of the active roll is wound to maintain the tension at a selected level. When the web on the active roll is nearly exhausted, an endless belt in frictional engagement with the standby roll is driven by a motor and accelerates the roll until the peripheral speed of the latter is equal to about 99 per cent of the linear speed of the running web and then the belt is driven from the running web so that the two speeds match.

Abstract: A method and device for the production of cover strips which are to be inserted into the grooves of stators of electric machines, from a supply of strip material provided on delivery rolls. The guide channel (26) for cover strip material (12) has several feed passages (46, 46'), which can be brought individually into connection one after the other with the main part of guide channel (26). Thus it is possible to thread the lead of a new delivery roll into its feed passage (46, 46') of the guide channel while the machine continues to run, so that when delivery rolls (16, 16') are to be changed, only a mechanical change of position of feed passages (46, 46') need be undertaken. The down time of the machine is thus greatly shortened.

Abstract: A device and method for interconnecting the trailing end of a first web to a leading end of a second web as f.i. in a printing machine, said device comprising a loop accumulator, suction boxes and spaced guiding rollers capable of being clamped together while being braked, further comprising means for presenting a sticking strip to be applied to always the same face of the webs.

Abstract: Apparatus for splicing the trailing end of an old web to a new web comprises a pair of tangential fixed rollers between which the old web is fed. At each side of the fixed rollers two further rollers are supported by arms pivotted on a pin lying in the tangent plane. The old web runs over one of these rollers, while on the other the starting end of the new web is supported with a double-sided adhesive tape thereon. The roller above which the old web runs is pivotted above the other roller so that the web runs between the rollers and the webs are spliced by raising the lower roller, as the old web runs out. A cutting device separates the tail of the old web. The upper roller is then moved back to its original position for preparing a new web.

Abstract: A paster tab for releasably securing the beginning end of a roll of material to the first layer of the roll is disclosed. The paster tab includes a color contrast area suitable for optical detection to orient the paper roll. The paster tab further includes a weakened portion for promoting separation of the paster tab between the areas secured to the beginning end of the new roll and the first layer of the roll. A method of splicing the trail end of an expiring ribbon to the beginning end of a new roll of ribbon is further disclosed including adhesively securing the trail end of the old ribbon to both the top of the beginning end of the new ribbon and to a portion of the paster tab.

Abstract: A device for joining together in a registered and/or abutting manner the ends of two paper or cardboard webs which unwind from two different reels (17, 19) positioned on a reel star unit (10), comprised of a presser roller splicer (36), a cutting unit (38) for cutting the web to size and at least one photoelectric reader (30) which controls the stoppage of the web from the spent reel when in proper position for joining, its joining to the new web, and the cutting to size of the last end of said spent web.

Abstract: Web splicing apparatus for use in a reelstand having static positions for at least two reels comprising means for rotating a fresh reel on the reelstand, means for guiding a portion of the expiring web into a position adjacent to the periphery of the fresh reel, and means for moving the expiring web into contact with the periphery of the fresh reel to cause web splicing when the speeds of the fresh reel and the expiring web have been synchronized.

Abstract: A device forms a splice between a moving web of a terminating roll and a web of a new roll in either one of two positions. The device has a pressure arm assembly, which has a pressure roll and a cutting device for severing the moving web from the terminating roll after formation of the splice and an acceleration arm assembly which has an acceleration roller and a motor for driving the roller with one of the two assemblies being constructed so that it can pass through an opening in the other assembly to shift the two assemblies from an "IN" splicing position, wherein the new roll is rotated in a clockwise direction to a "OUT" splicing position wherein the new roll is rotated in a counterclockwise position.

Abstract: An improved cassette loading machine is provided which has means for rotatably supporting two supply reels of magnetic tape, means for loading cassettes with tape from either supply reel, and means for automatically (1) terminating the loading of cassettes when the tape supply on a first supply reel is nearly exhausted, (2) splicing the tape from the second supply reel to the tape from the first supply reel, and (3) resuming the loading of cassettes with tape from the second supply reel.

Abstract: An improved splicing apparatus has a splicer head comprising a pair of opposed upper and lower traveling carriages each of which supports an idler roller, a nip bar which is swingable on its carriage between a ready position downstream from its corresponding idler roller and a web preparation position at the front of the splicer head and means for pushing the nip bar towards the opposite nip bar when both carriages are in their advanced positions. A knife carriage located on the head between the two nip bar carriages retracts when either nip bar carriage retracts to permit the nip bar on the opposite carriage to be swung to its web preparation position. The knife carriage supports a knife which can be actuated momentarily to urge it from a normal retracted position to an advanced position wherein it intercepts one of the nip bars when that nip bar is in its splicing position against the opposite nip bar.

Abstract: A web handling apparatus for selectively positioning web rolls so that the web from each roll can be moved past a work station such as a splicing station comprising a frame and a suspension arm pivoted to the frame for swinging movement about a horizontal axis. The arm is movable between first and second positions on each side of a vertical plane containing the horizontal axis. A pair of roll supports are positioned on the arm such that when the arm is in the first position, one roll is supported so that the web thereof is aligned longitudinally with a work station, and when the arm is in the second position, the other roll is supported with the web longitudinally aligned with the work station whereby the web can be removed and moved horizontally past the work station.

Abstract: The device which splices the leaders of webs on successive fresh bobbins to the running webs of expiring bobbins in a cigarette maker receives fresh bobbins from a magazine which discharges fresh bobbins one after the other when the need arises. The discharged fresh bobbin rolls along a downwardly sloping ramp and is arrested by the holder for a blade which is thereupon caused to move in parallelism with the axis of the arrested fresh bobbin so as to sever the outermost layer or layers of convoluted flexible material on the core of such fresh bobbin. The outermost layer is a protective strip which surrounds the outermost convolution of the cigarette paper web. A foraminous belt conveyor is installed below the fresh bobbin which abuts against the holder for the blade and this conveyor cooperates with one or more suction chambers to attract the severed layer or layers as well as the freshly formed leader of the cigarette paper web.

Abstract: The present invention relates to a packaging material feeding device on a packaging machine with two winders. This system includes two driving servomotors 4, 34, winders 1, 31, a driving mechanism 24, 25 of the packaging material in the form of a strip, two coding devices 54, 56, and sensing devices 55, 57 which sense a signal corresponding to the instantaneous diameter of the activated packaging material reel and, in response thereto, supply a control signal for controlling the driving speed of these winders. The system also includes a press 17, 21 to automatically match the end of the strip of packaging material on the reel being unrolled to the beginning of the strip on the following reel.

Abstract: A splicer for use with machines which receive and handle a web of paper or other suitable material supplied in a continuous length. The paper is supplied from a pair of rolls and when one roll is exhausted, the other one is substituted. A movable splicer assembly is disposed adjacent a paper supply roll and which includes an idler roll, a paper stop device, a severing device and a splice sealing roll. When the assembly is disposed adjacent the nearly exhausted paper roll, the stop device is actuated to hold the outgoing web from moving, regardless of the existence or adequacy of a roll brake. When the assembly is disposed adjacent the spent roll, the stop device positively holds the paper for lead-edge cutting and trimming during set-up and to keep the paper in place until the splice is made. The splice sealing roll has provisions to guide a cutting tool for said lead-edge forming of the fresh web, and also for optimally locating the lead edge.

Abstract: A paster roller is provided for use on high speed web handling equipment of the type having a support upon which a feed roll and a new roll are mounted. Variable torque brakes associated with each roll exhibit a substantially constant coefficient of friction at all web speeds. Apparatus for splicing the web from the feed roll onto the web from the new roll is provided including a uniquely designed paster roller having a deflectable outer surface with annular grooves situated therein. The brakes each include a brake caliper assembly for use in conjunction with the rotatable shaft upon which the roll is mounted which has a disc member associated therewith. The assembly includes a housing having a bore therein. A port provides a fluid connection between the extension of the housing and the bore. A cylindrical puck member is at least partially received within the bore.

Abstract: A method and apparatus are provided permitting shifting from rolling a thermoplastic web upon one roll to rolling the thermoplastic web upon another roll by overlapping the web connected to one roll and the web connected to the other roll, severing the overlapped webs, and forming a seam between the overlapping ends of the webs.

Abstract: A roller stand incorporating a device adapted to join a running web of material being unwound from a first roll to a web of material of a second roll and comprising a roll-holding device including two unwinding stations, means to cut the running web, a mechanism to exert a braking force on the spindles supporting said first and second rolls, and means provided to transfer rotational motion of said roll-support spindles to said braking mechanism by means of free-wheel members, said members being arranged to control said braking mechanism selectively for application of braking force on the roll-support spindle that at the moment has the highest rotational speed.

Abstract: A butt splicing unit for cutting a web running from a depleting roll and splicing the end of a supply web to the cut end of the running web. The unit includes a rectangular stationary knife and two moveable knife members below and on each side of the stationary knife. Each of the moveable knives cooperate with one of the knife edges formed by the lower corners of the stationary knife. Above the stationary knife, is a pair of vacuum plates for holding the end of a supply web. Each of the knife members includes a body having a vertical leading surface facing in the direction of the running web. Each of the leading surfaces are provided with vacuum ports for holding the lower portion of a strip of tape thereto. A knife blade is mounted at the top of each of the knife members and a recess is provided between one end of the blade and the body to receive the upper portion of the tape strip to hold it out of contact with the running tape.

Abstract: A synchronizing system for synchronizing the speeds of two webs of goods, wherein the first web runs at a constant speed and the second web has an adjustable running speed. First pulses are generated which have a frequency dependent upon the speed of the second web and a first counter is associated with the second web and is triggered by the first pulses. The first counter is also controlled to be started and stopped by at least one pair of timing marks which are running with the second web of goods. As a result of the frequency of the first pulses and the starting and stopping of the first counter, the first counter reaches a constant count upon stopping and each time the first counter is started for the next count this constant count is reached. Second pulses having a constant frequency associated with the speed of the first web are used to trigger a second counter which is started and stopped by the first counter when the constant count is reached.

Abstract: An automatic paper splicing control device including a depressing means for depressing a travelling paper onto a roll paper the surface to be joined thereby by means of an adhesive coated on the roll paper. A time T being required to contact the travelling paper with the roll paper. A pulse generating device generates pulse signals having a frequency proportional to the number of revolutions of the roll paper. A detector detects the adhesive coated surface arriving at a predetermined position. A counter counts the number of pulses generated by the pulse generating means. The control device modifies the time of starting of the depressing means in accordance with the number of pulses counted by the counter during the time T to thereby accommodate changes in the diameter size of the roll paper and its surface speed.

Abstract: An apparatus for joining, while in continuous movement, (trailing) end of a web from a depleted coil to the leading end of a fresh coil comprises on a supporting frame a bonding station including a bonding cylindrical segment, a cylindrical surface mating therewith and a lever and arm assembly actuated to cause the cylindrical segment to be moved toward the mating surface in order to bond the tail end and leading end edges to each other.

Abstract: A splicer for use with machines which receive and handle a web of paper or other suitable material supplied in a continuous length. The paper is supplied from a pair of rolls and when one roll is exhausted, the other one is substituted. A movable splicer assembly is disposed adjacent a paper supply roll and which includes an idler roll, a paper stop device, a severing device and a splice sealing roll. When the assembly is disposed adjacent the nearly exhausted paper roll, the stop device is actuated to hold the outgoing web from moving, regardless of the existence or adequacy of a roll brake. When the assembly is disposed adjacent the spent roll, the stop device positively holds the paper for lead-edge cutting and trimming during set-up and to keep the paper in place until the splice is made. The splice sealing roll has provisions to guide a cutting tool for said lead-edge forming of the fresh web, and also for optimally locating the lead edge.

Abstract: Apparatus for replacing rotating mandrels on which a web is wound, featuring, in various aspects, improved means for accelerating new mandrels to match web speed prior to splicing, gravity-induced movement of the new mandrel between loading and main rotation stations, improved splicing and web severing means, and a temporary web tension control brake associated with a splice roll.

Abstract: The splicer successfully lap splices web material being drawn from a roll under low tension. A central stationary knife member extends transversely of the web and splicing carriages on either side of the stationary knife are slideably mounted to be moved perpendicular to the web toward and away from the knife member. Each carriage includes a roller for directing the web past the splicing mechanism, a knife blade for cooperating with the knife member to cut the web, a clamping pad for engaging the side of the knife member for clamping web therebetween during a splice, and a pressure pad for impacting against the pad of the other carriage to press the webs to opposite sides of a strip of adhesive tape to form the splice.

Abstract: To join the start of a new web to an expiring web a splicing assembly is provided which includes a light source and photoelectric cell. When a splice is to be effected, the splicer is moved towards the new reel and when the light beam is interrupted by the periphery of the reel the splicer is stopped in the correct position for splicing, and the position of the cell used as an indication of the diameter of the reel; a signal from the cell also causing the reel to be driven at such a speed that the speed of the new reel matches the linear speed of the old web so that the splice may be effected properly.

Abstract: A fresh web of cigarette paper or the like is spliced to the running web by a uniting band, which is adhesive at both sides, after the fresh web is accelerated to the speed of the running web. The uniting band is placed between the running web and the leader of the fresh web, and the running web is shifted sideways to adhere to the adjacent side of the uniting band as well as to move the other side of the uniting band against the fresh web as soon as the speed of the fresh web rises to that of the running web. The running web is severed behind the moving uniting band, and the fresh web is severed ahead of the moving uniting band. Severing of the fresh web is preceded by relaxation of tensional stress upon the leader of the fresh web in response to displacement of a guide roller which engages the fresh web between a stationary knife for the fresh web and a pair of motor-driven advancing rolls which pull the leader of the fresh web in the course of and subsequent to completed acceleration of the fresh web.

Abstract: Strips of resilient material on each of two normally stationary spaced-apart rolls contact and press against opposite sides of a web being supplied to a using process and the leading edge of a reserve web. At least one strip of adhesive tape, lightly adhered to one of the strips of resilient material with its adhesive side facing out, bonds the leading edge of the reserve web to the supply web on the fly without stopping the motion of the web. When the web consists of netting material, adhesive tape is used on both rolls and the adhesive tape is pressed face to face by the resilient material through the openings in the netting to adhere to each other, thus pocketing the netting material between them.

Abstract: A feeding system for manufacturing machines consuming paper supplied in a continuous strip employs a holding and joining device for holding the leading edge of a reserve strip in a buckle concave to a cutting knife. The reserve strip is contacted with the strip being supplied and the cutting knife severs the strip being supplied by passing therethrough. The reserve strip remains unsevered because the knife travels in the buckle.

Abstract: Web splicing apparatus employs a pair of driven nip rolls which controllably feed web from a running roll into a festoon as web is drawn out of the festoon at a constant rate by a downstream web consuming machine. The nip rolls are driven by a DC motor connected in a closed loop servo system which compares the speed of the web entering the festoon with the web line speed to develop a command signal for the motor. During normal operation, the command signal includes a web velocity trim signal developed by monitoring the position of the festoon dancer relative to a selected reference position so as to minimize tension upsets and to maintain the dancer within its control range. During a splice sequence, the command signal comprises a deceleration ramp having a selected slope to provide controlled deceleration of the web to minimize tension upsets and to permit actuation of the splicing nips prior to actual web stop.

Abstract: An automatic web splice control system for a web splicer apparatus including a running web roll and a ready web roll and a splice mechanism for splicing the expiring end of the running web to the leading end of the ready web. The system provides successive measurements of the length of web unwound from the running web roll per revolution of the roll. The length of web unwound per revolution of the roll is compared to a first pre-selected length. When the length unwound per revolution of the roll falls below the first pre-selected length, the system determines the length of web unwound from the roll per a pre-selected number of revolutions of the roll. When the length of web unwound per the pre-selected number of revolutions of the roll reaches a second pre-selected length, a warning signal is generated. Thereafter, the measurement of length of web unwound per revolution of the roll is dynamically incremented.

Abstract: A splicing roller device for use in an automatic paper splicing apparatus. The device comprises at least one splicing roller having an adhesive surface and at least one endless belt arranged to pass around the outer surface of the splicing roller and provided with a non-adhesive surface, whereby smooth automatic splicing of two lengths of crude paper is accomplished thus ensuring continuous supply of crude paper to a processing line without lowering of the line speed.

Abstract: A method for controlling the on-the-fly splicing of a web wound on a first roll to a web wound on a second roll, wherein the first roll is being unwound and the second roll is set in rotation.

Abstract: A continuous clear surfaced web adapted to be fed from a supply roll thereof for a converting operation thereon is preprinted with a succession of identical repeat patterns extending over the entire width of the web. Each pattern consists of areas which contain printed matter and at least one longitudinable discontinuous area or segment which, except for the presence of a printed register mark therein, is clear and unprinted. A photo sensitive scanner is directed at the register mark track of the feeding web for detecting the register marks and controlling in accordance therewith the timing of an associated machine operation, such as web splicing, so as to be performed in register with the web pattern. The operation of the scanner is controlled by a digital reset counter of pulses fed from a pulse generator driven by the web feeding mechanism. The counter is reset to zero upon the detection of each register mark.

Abstract: A method and device for splicing a rotating new roll of material to a moving web which is nearly exhausted, each web having uniformly spaced indicia thereon and wherein the indicia on the new roll at the leading end thereof is unevenly spaced, the speed of the old web being adjusted to correspond with the peripheral speed of the new roll during a portion of its periphery and the indicia then being exactly registered along that portion so that the webs are spliced together to provide a continuing web having uniformly spaced indicia thereon.

Abstract: A manual flying paster for an efficient inexpensive manner of manually splicing a sequence of three rolls of newsprint as one continuous feed to small printing presses. The paster includes a pivotable cradle which can be directly mounted upon the existing rollstand frame of such small presses to allow a first expiring horizontal rear newsprint roll to be spliced onto a full forward newsprint roll, and then a new rear newsprint roll to be spliced onto the second expiring front newsprint roll for a continuous operating sequence of three newsprint rolls.

Abstract: The present invention relates to a method and apparatus for splicing paper rolls. More particularly, in a mill roll stand which rotatably supports two paper rolls in face to face, opposing relationship and which allows the respective position of the two paper rolls to be mutually replaced, the present invention relates to a method and apparatus for splicing the fully wound paper roll, which is not yet pulled out, with paper roll which is being continuously pulled out by correctly combining the respective inside and outside portions of the roll paper.

Abstract: Web supply apparatus for supplying relatively stiff web material such as liner board for a corrugator serves the web from one of two supply rolls. The running web passes through a splicing station and a festoon on its way to the web-consuming machine. The leading end of the ready web is prepared on a web positioning bar away from the splicing station and then carried by the bar to the splicing station while the running web is being consumed. When the roll of running web expires, a control system automatically stops the roll of running web and special pressure pads at the splicing station press the running web and ready web together to make a strong splice between them. Immediately thereafter, a knive fires directly behind the splice, thereby cutting the trailing end of the running web. The pressure pads firmly grip the webs above and below the line of the cut so that the knife slices cleanly through the web.

Abstract: A roller stand incorporating a device adapted to join a running web of material being unwound from a first roll to a web of material of a second roll and comprising a roll-holding device including two unwinding stations, means to cut the running web, a mechanism to exert a braking force on the spindles supporting said first and second rolls, and means provided to transfer rotational motion of said roll-support spindles to said braking mechanism by means of free-wheel members, said members being arranged to control said braking mechanism selectively for application of braking force on the roll-support spindle that at the moment has the highest rotational speed.