Abstract: A device for threading a paper web from a dryer section to a finishing device situated after the dryer section in the running direction of the web including a rope threading arrangement. A leader strip is separated from the edge of the paper web in the dryer section and the leader strip is directed between a pair of ropes included in the rope threading arrangement. The leader strip is carried to the finishing device on support of the ropes. To effect the transfer of the leader strip from the drying wire to the rope, at the inlet side of the last drying cylinder in the dryer section, a rope gap is formed out of the ropes and the leader strip, which is supported by the drying wire thereat, is transferred by an air blowing into the rope gap. The leader strip is passed by the ropes over the last drying cylinder to the finishing device.

Abstract: An apparatus to facilitate tail threading of a paper web and a method of threading the tail of a paper web (1) to be coated through a coating line during startup or web break, in which an edge strip is slit from the web to act as the tail of the web which is first threaded through the line and then widened to the normal width of the web by moving the edge strip slitter. Said edge strip is first guided to a movable support element (12) located after the edge strip slitting point in the travel direction of the web (1) and the strip is supported against said movable support element (12) and is passed supported by said movable support element (12) to the next support element (14).

Abstract: A rotational detector is attached to each of the rolls that might be passed over or under as part of a paper web/path. Each of the rotational detectors emits an output signal which indicates whether the roll it is attached to is moving and, if it is moving, the direction it is moving. A comparator compares the output from each of the rotational detectors to path requirement data for the path that the pressman intended to web. The comparator determines whether any mistakes have occurred and if an error has occurred the roll on which the mistake has occurred. The comparator then determines whether any of the mistakes which might have occurred are catastrophic, requiring rewebbing. If there are no catastrophic errors, a controller adjusts the register for any deviations from the intended path that might have occurred during webbing.

Abstract: A papermaking machine uses a low pressure water jet mounted on a pneumatic actuator for movement at least as fast in the cross machine direction as the paper web moves in the machine direction for a distance of 2 to 12 inches. The jet rapidly cuts a tail with a blunt edge of 2 to 12 inches wide from the web. The actuator is mounted on a screw or belt driven carriage to traverse the web and expand the tail after it has been threaded through the dryer section until the tail encompass the entire web and thus completes the threading process. A controller coordinates an air jet positioned beneath a doctor blade and a vacuum suction roll which engages the last press roll. The air jet and vacuum suction roll are actuated when the blunt end of the tail engages the doctor blade. In this way a tail with little or no streamer is formed and blown onto a dryer fabric supported on a vacuum suction roll which leads the tail into a single tier dryer section.

Abstract: A method for moving a photosensitive strip material for treatment either forwardly or reversely in a photoprocessing apparatus in which the photosensitive material is moved either from or to a magazine for storing the photosensitive material wound in a form of a roll which includes driving the strip moving mechanism at a plurality of strip-moving speeds. The strip, prior to stopping, is moved at a low speed and is stopped by braking from the low-speed state so that slack inside the magazine can be absorbed and, at the same time, slack is not generated inside the magazine. Consequently, abnormal noise or damage to the strip generated from inside the magazine is eliminated.

Abstract: A feeding apparatus has a rotatable feed drum and first and second nip rollers movable into rolling contact with an outer circumferential surface of the feed drum by gravity. The first nip roller is made of a metal, and the second nip roller is made of rubber, so that the first nip roller exerts feeding forces smaller than feeding forces exerted by the second nip roller. A film that is fed by the feed drum in coaction with the first and second nip rollers is reliably prevented from being lifted off the outer circumferential surface of the feed drum.

Abstract: A yarn guide elbow for directing a yarn or filament in a textile process, such as a texturing process. The yarn guide elbow includes a housing, the housing defining a cavity. The housing is provided with a first opening and a second opening, each of which communicate with the cavity. A roller is disposed within the cavity and mounted on the housing for rotation. Each of the first and second openings are disposed substantially adjacent the periphery of the roller. The housing is arranged and configured such that the distance between the first and second openings may be selectively adjusted.

Abstract: A feed apparatus for feeding a film has a pair of presser guide members for pressing a film F against an outer circumferential surface of a feed drum, a pair of upstream and downstream guide plates for guiding the film F, and a moving mechanism for moving a pair of nip rollers toward and away from the feed drum. When the film F is scanned by a light beam, the film F is tautly held against the outer circumferential surface of the feed drum. The moving mechanism has first and second displacing mechanisms actuatable in synchronism with vertical movement of the nip rollers toward and away from the feed drum for displacing the presser guide members and the upstream and downstream guide plates toward and away from the feed drum.

Abstract: A device for automatically advancing the end of a web in a priming press. The device is particularly useful for advancing the web end over a former and into a folder unit in a press. The device includes at least one endless belt which moves from a retracted position to an engaged position, to thereby grip the web end and, upon rotation of the endless belt, advance the web end to the desired location in the press. The device of the present invention can also be used to advance a web end over a former roll, as well as over an angle roll, in a printing press.

Abstract: An apparatus 1 for widening a foam sheet S obtained immediately after heating and foaming a foam sheet which has not been yet widened, while the foam sheet S is continuously received or supplied. The sheet widening apparatus 1 comprises: a pair of chains 2 constructed in the form of endless chains composed of links 22 having pin parts 21 and a driving device 3 meshing with these chains 2 and driving the chains 2 along such loci as to widen the space between the chains 2 from sheet receiving start points to sheet receiving end points. A method for widening a foam sheet by the sheet widening apparatus 1 comprises the steps of piercing both the side parts of the foam sheet S with the pins 21 at the sheet receiving start points; widening the space of width between the pins 21 along gently curved loci by drying the chains 2 while the pins 21 penetrating the foam sheet; and receiving the foam sheet S from the sheet receiving start points to the sheet receiving end points while the foam sheet is widened.

Abstract: It is well known to attach clips carrying photographic material to a belt for transport through processing apparatus. However, known clips have the disadvantage of distorting the belt to which they are attached which eventually leads to belt damage. Described herein is an improved belt/clip arrangement in which `Velcro` material is utilized to provide the releasable attachment. A belt (10) carries a plurality of patches (12) which comprise hook material. A clip (26) carries the corresponding loop material and is pressed firmly to the belt (10) so that at least two of the patches (12) are covered by the clip (26). The clip (26) can be detached from the belt (10) by positioning a wedge to pass between the clip (26) and the belt (10) or alternatively, the belt (10) may be passed over a tight radius to effect detachment.

Abstract: A ribbon cartridge reloader apparatus which removes spent ribbon from a cartridge and inserts replacement ribbon into the cartridge. The ribbon cartridge reloader includes a discharge motor to pull spent ribbon from a cartridge, at least one infeed motor, interchangeable bits driven by the infeed motor, at least one clamp capable of releasably fastening a ribbon cartridge into the apparatus and urging an external ribbon advance knob of the ribbon cartridge against the interchangeable drive bits, a footage counter, a ribbon tensioner, and a sensor capable of disabling the apparatus when a pre-selected amount of replacement ribbon has been fed into the cartridge.

Abstract: A web transporting device usable in a rotary printing press or folder, includes a rotatably driven transport roller having a fixed axis and at least one engagable nip roller having an axis substantially parallel to the fixed axis and being engagable with the driven transport roller. The engagable nip roller has a length corresponding to a maximum width of the web processable in the printing press. A removable nip sleeve is provided which is axially mounted on the engagable nip roller. The removable nip sleeve has at least one ring-shaped annular gap disposed axially along its length which allows the web to ripple as it passes through the web transporting device without causing permanent wrinkles or creases to form in the web. A counterbalancing mechanism is also provided which stabilizes the engagable nip roller in a maintenance position as the removable nip sleeve is replaced.

Abstract: An apparatus for removing a running torn web of material is disclosed having two rollers parallel to each another disposed on a same side of the running web of material, so that the axes of the two rollers are orientated horizontal to each other and perpendicular to the direction of movement of the running web of material. The apparatus is provided with a manifold disposed on the side of the web opposite to the two rollers and provided with blowing nozzles placed in line with an inlet region formed by the two rollers in rotation. The manifold is supplied with compressed air when a detection system has detected the tearing of the web. The compressed air exits the blowing nozzles exerting a blowing force on the torn web of material causing it to engage between the two parallel rollers in rotation.

Abstract: A yarn drawing-in nozzle for drawing a yarn through an eye of a drawn-through member, comprising: a compression nozzle provided in an upstream side of the drawn-through member and having a block, the block being formed with a guide passage to which compressed air is supplied and into which the yarn with its distal end portion is inserted and through which the yarn is drawn through the eye of the drawn-through member with the aid of the compressed air; the guide passage of the compression nozzle being defined by an axially elongated groove having an upper open end and a bottom surface along a yarn drawing-in direction so that the compressed air is supplied through the bottom surface to the guide passage and that the distal end portion is drawn toward the bottom surface through the upper open end and that the yarn is drawn through the eye of the drawn-through member from a distal end of the yarn along the bottom surface.

Abstract: A media guide for assisting in threading the head end of a rolled, radiation sensitive media through an imaging station in an imaging device. The media guide has a longitudinally extending arcuate input media guide and a parallel longitudinally extending arcuate output media guide with the open arcuate surfaces thereof facing in the same direction. A longitudinally extending imaging aperture slot is positioned between and parallel to the arcuate input and output media guides. The input side of the imaging aperture slot is located above the output side of the aperture to prevent the media from catching in the aperture slot.

Abstract: A tape storage apparatus is used with a mailing machine having printing postage indicia on a discrete portion of a strip of tape of indefinite length which is fed along a tape path extending through the mailing machine by a tape feeding device mounted within the mailing machine. The tape storage apparatus includes a base having vertical guide rails and a tape holding device mounted on the guide rails for movement therealong. A releasable latch holds the tape holding device in a lowermost position against the force of a plurality of resilient spring device for moving the tape holding device upwardly to a position in which the tape holding device becomes accessible to an operator or service person for reloading rolls of tape or performing service on the apparatus. When the tape holding device is in its lowermost position, it is functionally integrated with the mailing machine, but it is inaccessible for reloading tape or for threading tape into the feeding device in the mailing machine.

Abstract: In a photographic film or paper web handling system, a vacuum drum carried by a moveable carriage automatically picks up the end of a web roll and feeds it to a web path. The location of the roll surface is sensed and the carriage is positioned in close proximity to the roll surface. The pickup of the web end by the vacuum drum is sensed and the carriage is moved from the web roll to a position adjacent the web path. An air chute is provided for transporting the web along the film path to a web perforator. A drive for the web roll is placed in a constant torque mode for maintaining web tension during initial threading and a loop position servo controlled mode for maintaining a loop height in a slack box after threading.

Abstract: Disclosed is transfer apparatus for use in an embossing dispenser capable of sequentially dispensing primary and secondary rolls of a sheet material. The transfer apparatus includes pivotally mounted transfer linkage which supports a primary roll contacting surface. Bar means attached to the transfer linkage has a comb projecting therefrom with a wing member extending from each end of the bar member. The transfer linkage is biased for rotational movement to maintain the primary roll contacting surface in contact with the primary roll as the primary roll is depleted. This biasing simultaneously rotates the bar means toward the embossing rollers.

Abstract: A web threading system for threading a web through a dryer and an optional chill roll stand. The web attaches to a lock up roll threading bar. A lock up roll threading bar is carried between a pair of parallel dryer chains to lead and thread the web through the dryer environment, and through and about optional chill rolls in a chill stand. A locking mechanism is provided for the lock up roll threading bar to engage the web for ready attachment or disengagement of the web from the lock up roll threading bar before and after the threading process.

Abstract: An articulating paper sensor for sensing the presence of continuous paper in a tractor drive assembly for transporting continuous paper along a travel path. The articulating paper sensor comprises a body having a portion including a sensing element for detecting continuous paper and producing a signal in response to such detection. The body is pivotably attached to the tractor drive assembly. When the tractor drive assembly is positioned to have continuous paper loaded therein, the body is moved to a remote location relative to the continuous paper travel path; and when the tractor drive assembly is positioned to transport continuous paper along the travel path, the body is moved to a location relative to the travel path such that the sensing element detects the presence of continuous paper in the travel path.

Abstract: This invention has for its object to provide an apparatus for connecting a paper web with a paper web threading member wherein during the stand-by period of a retaining device the adhesive surface of an adhesive material in the retaining device is covered up by a movable cover so that paper dust or the like may be prevented from depositing thereon. The apparatus comprises a paper web retaining member connected to the upstream end of the paper web threading member and adapted to be located at a predetermined position along a paper web threading path where it is allowed to stand by; a retaining device for retaining a paper web, which has been advanced to the predetermined position along the path, onto the paper web retaining member through the intermediary of an adhesive material; and a movable cover provided in juxtaposition with the retaining device and adapted to be moved so as to selectively cover up or expose at least the adhesive surface of the adhesive material.

Abstract: Disclosed is a paper saver for use with continuous paper forms, the paper saver comprising a generally rectangular shaped flexible sheet having a top and a bottom and two parallel sides defining the rectangular shaped material. The sides extend to provide the material with a width approximate that of the paper forms. The sides of the material have openings therein to engage a drive mechanism and bosses on at least one of the sides to engage the paper form whereby said paper saver can be fed through processing equipment and providing a first part of said paper for information.

Abstract: A self-threading and feeding arrangement for a printer including a drop-in supply station, a printing station and a take-up station. A pay-out roller is journaled across the bottom arcuate wall of the supply station for supporting a web of print receiving media placed therein. A take-up spool includes a retainer for interengaging with a lead of the media web to positively draw the web around the rotated spool. The take-up station also includes a slot-like exit guide chute that has a contoured tip for cooperating with the retainer on the take-up spool, during loading of a new roll, to place the web lead into engagement with the retainer. A drive roller, and preferably the pay-out roller, are driven by a first stepping motor, and the take-up spool is driven by a separately actuable second stepping motor.

Abstract: Herein disclosed is a web paper cutting position adjusting system which comprises: marking means including a control unit for generating a predetermined phase detection signal by detecting a predetermined rotational phase of a platen, and a marking unit for marking a web paper in response to the predetermined phase detection signal; web paper cutting means disposed a predetermined distance downstream of the marking means for cutting the web paper; mark detecting means interposed between the marking means and the web paper cutting means for detecting the mark to transmit a mark detection signal; cutting phase signal transmitting means associated with the operation of the web paper cutting means for transmitting a cutting phase signal; and web paper threading path changing means including an arithmetic unit having an operation signal transmitting unit made receptive of the mark detection signal and the cutting phase signal for transmiting a web paper threading path length changing signal, if the transmission ti

Abstract: A blow device for weft threads in weaving machines, in particular a blow device which makes use of a nozzle of the type which consists of a housing, a thread guide duct extending through the housing and a first or main blower situated in the housing and working with the thread guide duct to transport a weft thread to the shed of the weaving machine. The nozzle has a second or threading blower also situated in the housing that cooperates with the thread guide duct for threading the nozzle. The second blower has at least one blow duct which intersects the thread guide duct at an angle so as to thrust a weft thread presented at the entry of the thread guide duct through the thread guide duct when supplied with air. A central system deactivates the main blower when the threading blower is activated.

Abstract: A graphics printer including a secondary guiding system comprising a fan arrangement for generating an air flux and directing the flux to a part of a print medium that hangs freely from the graphics printer, so as to maintain the hanging part away from the graphics printer or any object supported by it, preferably, in the case of a pen plotter equipped with devices for creating a partial vacuum beneath the print medium in an active zone of the writing instrument, the air flux being at least partially produced by suction devices.

Abstract: A carriage for unwinding packaging film and incorporation in a packaging machine, comprising a stand carrying a supporting shaft for a film reel and a roller device carried by the stand and comprising two main rollers including upstream and downstream rollers with parallel axes of rotation and set transversely apart but near to one another to define therebetween a passage for the packaging film having an entry orifice and an exit orifice, the two main rollers being simultaneously rotatable about their respective axes in opposite directions by drive means. Two film guide rollers including an upstream and a downstream guide roller are respectively associated with the upstream and downstream main rollers and have axes of rotation parallel to one another and to the axes of rotation of the main rollers.

Abstract: A tow feeding apparatus which requires no continuous observation, shortens the reset time when tow is wound around pinch rolls for feeding into a case, and operates safely, includes guide rolls for leading a tow to a winding roll or pinch rolls, a winding roll apparatus provided between the guide rolls and pinch rolls at a normal position for winding up a tow around a winding roll when wrapping trouble occurs at the pinch rolls. A pinch roll apparatus for feeding the tow from the guide rolls through the winding roll apparatus into a case, and a transport device for transporting the winding roll apparatus from the normal position to a reset position behind the pinch roll apparatus when wrapping trouble occurs. A cutter shears the tow along the tow route before the pinch roll apparatus. An exchanger for substituting the pinch roll apparatus with another set of pinch rolls, and a detector for detecting wrapping of a tow around the pinch rolls are further included.

Abstract: The auxiliary device for drawing in a lap sheet between the calender rollers includes a curved plate and a flexible flat structure secured to a rear edge of the plate. The plate is introduced into a gap between the first two calender rollers and moved about the second roller until entering the gap between the second and third rollers. The start of a lap sheet is then placed on the flexible flat structure and secured thereon and the plate and flexible flat structure then advanced until the lap issues upwardly through the gap between the second and third rollers. The auxiliary device is then removed and the leading edge of the lap sheet introduced between the third and fourth calender rollers for delivery to a winding roller.

Abstract: A reel threader for treading the tail of a paper making web around a partial reel. A flexible panel with interior passages forming an air distribution network has openings on one surface to provide a plurality of air streams out of the surface. The panel is positioned by a computer controlled movable support frame in an arc which is spaced from and concentric with the lower and side portion of a partial reel, regardless of its diameter, to form a gap. The tail passes from the nip into the gap and is pulled through the gap by the rotating periphery of the partial reel.

Abstract: A feed mechanism and method for feeding zigzag paper from either side of a zigzag paper pack. Zigzag paper is inserted into a paper retention pocket in a door pivoted to a housing. The door is then closed, causing the paper pack to stand upright vertically and an end of the paper to become positioned between a drive roller and a print head and between a drag spring and guide element. The drag spring biases against the guide element and is arranged above a base of the paper retention pocket over the zigzag paper pack. The drive roller pulls the paper between the drag spring and guide element and out of the pocket.

Abstract: A foil loading apparatus (12) includes a foil lift mechanism (14) and a guide plate (20) for advancing foil material (16) along a winding foil flow path. Foil material (16) is raised on lift arm (24) from a lower position up through a confined space between a heated platen (40) and a pressing block (42) to an upper position where the foil material (16) may be accessed and fed through a remaining portion of the foil flow path.

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

Abstract: A string positioning device to attach strings on a core to wind baseballs includes a holding device to hold an end of the string leaving a free end free with a head member with a face facing in the general direction that the string is to be positioned along a directional line with a plurality of pairs of holes all angled to focus on points along the directional line with a compressed air supply to cause air to flow outwardly through the holes to catch and hold a length of the free end of the string in alignment along the directional line.

Abstract: A tape transporter is provided with elements to straighten out the normally sinuous tape supply and tape take-up paths of a magnetic tape apparatus in order to facilitate the threading of a magnetic tape into a tape reading and/or recording system. This control of the paths is accomplished by incorporating displaceable guides or idlers into an endless loop the displacement of which is used to control the positioning of the guides or idlers.

Abstract: A quilting frame comprises a support structure, and a plurality of horizontal, elongate rollers to hold the desired quilting materials. These rollers terminate in shafts, which are captured in grooves formed between the block and cap portions of a split side rail. The block and cap of these rails are fastened together by a plurality of adjustable clamping bolts, preferably one adjacent each roller, so that pressure between the block and cap frictionally engages the roller shafts captured therebetween, and thus can be selected to lock or unlock the rollers within the rail. Also incorporated into this rail system is a lateral tension cord system comprising a small tension block conditioned for placement against the quilting material suspended between a pair of rollers, with at least one tension cord extending laterally from the block through a groove in the rail block. The quilting material is connected (e.g.

Abstract: Apparatus for threading the leader of a flexible web through a coating, drying or other processing machine has an elongated steel strip which is adjacent the path of movement of the web through the machine and one side of which is overlapped by an inflatable hose. The leader of the web is separably coupled to a follower by a wire or cord, and the follower tracks the strip and simultaneously overlies and deflates a portion of the hose. The hose is connected with a source of compressed air, at least at one side of the follower, so that when the source admits compressed air into the hose, the latter is inflated and propels the follower along the strip. The follower has a smooth-surfaced slightly convex first roll which overlies and deforms the adjacent portion of the hose, and a flanged second roll which engages the strip opposite the hose so that the strip and the hose are located between the two rolls.

Abstract: A new weft yarn is supplied to a predetermined position in case when the weft yarn in a control unit, particularly in a loom, is broken. Conventionally, the supply of the new weft yarn is effected by a weaver. The present invention provides a yarn guide device for positioning, holding, and transferring a yarn to a predetermined position. The yarn in then drawn inside of a guide tube located in a predetermined position, and thereafter the yarn is automatically guided to a required device such as a measuring and storing device for the weft yarn.

Abstract: Apparatus for automatically threading the leading end of a web spooled on a reel into one end of a conveying passage includes a draw-out lever having a web support surface and movable to a first position at which the support surface engages the web spooled on the reel. A nipping finger is provided which is actuatable to trap the leading end of the web against the surface when the lever is in its first position. The lever is movable to a second position at which the support surface is spaced from the web spooled on the reel for unspooling the web from the reel. A feed mechanism is made effective after the lever is moved to its second position, and after the nipping finger has been deactuated, for engaging the unspooled web and feeding the leading end thereof into the conveying passage.

Abstract: An improved apparatus for threading thermoplastic film through at least one forward stretching machine 23, comprising driven, stationary rolls 1 and driven, raised lift rolls 2. Each of the rolls 1 and 2 has an intake plate 4 on one of its front sides, which has a milled grooved 24 for the threading apparatus to pass through. The threading apparatus comprises a flexible rod 18 with a removably attached clamp component 13 or 25. The clamp components contain variously configured clamping elements, springs, and insertion slots. The clamping elements are arranged in such a way that they hold the film web 3, which has been inserted in them, during the transport of the threading unit through the forward stretching machine, this holding being done by means of self-locking or spring-loading. For the reliable introduction of the threading apparatus into the forward stretching machine 23, there is disclosed an insertion unit 31, having pairs of upper and lower guide bearings 19.

Abstract: A suction gun has a first injection nozzle and a second injection nozzle. The first and second injection nozzles inject pressurized water, thereby to draw a yarn with a suction force of the pressurized water. The second injection nozzle has a plurality of jets, respective axes of which intersect with each other at an intersection point. The intersection point is located in a position displaced by E, which is preferably in a range from 0.2 mm to 0.9 mm, from an axis of a through hole which is included in a pressurized liquid exhaust passage.

Abstract: A recorder or printer device including apparatus for threading a continuous web of printable material from a supply through a main drive nip, including a main drive nip formed by a drive surface of a rotatable roll and a main presser which urges the web against the roll, a loop-introducing guide surface arranged relative to the drive surface of the roll, to form a convergent channel leading to the drive nip, and an initial presser for urging the web against the roll at an initial drive nip spaced from the main drive nip. The initial presser has a second position separate from the drive roll for enabling placement of a leader portion of the web between the initial presser and the roll with the leader extending past the initial nip.

Abstract: A horizontal type of open-reel magnetic tape drive unit automatically clamps a tape reel in a drive section after the reel is inserted, then seperates the free end of the tape from the reel, and guides the free end of the tape along a tape transport path to be wound onto a take-up hub, with these separation and guidance operations being performed by a small number of high pressure air jets. Pressure sealing of the unit is unnecessary, and the overall configuration is simple and easily manufactured.

Abstract: A paper tail nip threader for guiding a moving paper tail over and around a contoured surface. The apparatus is particularly useful for automatically threading a paper tail through a calender roll stack.A guide surface is shaped to conform to a portion of the surface over which the paper is to be passed. An air stream is directed across the guide surface in the desired direction of movement of the paper. The air stream is thus forced to flow in a contoured path which corresponds to the surface over which the paper is to be passed. The moving air stream "catches" the paper tail and carries it between the guide surface and the surface over which the paper is to be passed.

Abstract: A backstand threading device to be mounted on a paper sheeter to permit an operator to move the device and himself along the length of the paper sheeter to thread each of the plurality of webs moving through the paper sheeter.

Abstract: An automatically threading magnetic tape drive includes a small-flanged take-up reel and a removeable large-flanged supply reel whose diameter is greater than the center-to-center spacing of the reels. During threading, a hinged shutter is closed to provide an air-tight barrier between the reels, the supply reel lies in a region of relatively high air pressure H and the take-up reel lies in a region of relatively low air pressure L. An air-tight channel links the region H and L and tape is threaded through the channel by air flow. Tape is drawn towards the take-up hub by air flow along slots in one or both take-up flanges, and the hub surface is elastomer-coated. During normal running the shutter is opened and tape spooled on to the take-up reel may overlap the supply reel flanges.

Abstract: A coater and a method of operating such coater is disclosed. The method of operating the coater includes the steps of separating a first tail from a full width web unwound from an unwind stand at threading velocity and threading the first tail at the threading velocity through a pull stack. The first tail is widened to the full width of the web so that a full width web extends through the pull stack. The full width web emerging from the pull stack is dumped into a first broke chute which is disposed below the pull stack. The full width web extending through the pull stack is accelerated along with a coating apparatus to coating velocity so that both the full width web and the coating apparatus attain coating velocity. A second tail is cut in the full width web between the unwind stand and the pull stack and such second tail is threaded through the coating apparatus while the second tail is moving at coating velocity.

Abstract: A threading belt (A) extends around a plurality of pulleys and guide rollers (B). A loading station (C) is disposed along a linear run of the threading belt for inserting a web between hingedly connected gripping portions (16, 18) of the threading belt. The loading station includes a wedge-shaped belt spreading member (52) for urging the gripping portions of the belt apart and providing a groove (60) through which the web is fed between the gripping portions. The threading belt conveys the web through a floating dryer (D) to an unloading station (E). The unloading station includes an ejector member (90) which spreads the belt and a nozzle (96) for directing a jet of air between the belt gripping portions to eject the web therefrom. The belt includes a main woven fabric strength member (24) extending along the hinged connection of the gripping portions. A fabric cover (20) surrounds the gripping and hinge portions and is impregnated with a silicon rubber (22).

Abstract: A narrow guide belt runs in the edge area of the paper web width across the drying cylinder of a paper machine and serves to thread the transfer strip through the drying cylinder section. On each drying cylinder, about in the center of the looping zone formed by the guide belt on the drying cylinder, two or three guide belt pulleys are so arranged that the belt will for a short distance lift off the cylinder. The pulleys can be swiveled in a position spaced from the drying cylinder where the guide belt lifts entirely off the cylinder.