Abstract: A spindle (10) suitable for winding up coreless rolls (11) of a stretchable plastic film; the spindle (10) comprises a tubular body having a peripheral wall (12) defining at least one internal chamber (14) connectable to a pressurised air source. A plurality of perforations (17) extends from the internal chamber (14) of the spindle (10), through the peripheral wall (12) and a protective layer (19) of hard chrome having a sandblasted outer surface (18) with an average roughness ranging between 6 and 6.5 obtained by dry sandblasting.

Abstract: The rewinding machine comprises: a first winding roller (11) and a second winding roller (13) defining a nip (15) through which said cores are inserted and through which said web material (N) is fed; and at least one pair of motorized engaging members (57), to engage the ends of a winding core and transmit a rotational movement to the core during at least part of the winding cycle of each log. The engaging members and the first and second winding roller are produced and disposed so that the log being formed is in contact with said first and said second winding roller. Moreover, a third winding roller (17) is provided, defining a winding space with said first and said second winding roller, said third winding roller being movable to allow increase and completion of winding of each log in said winding space.

Abstract: The object of the present invention is to provide a winding drum for a sheet-like member which can change reliably the range of air sucking intake holes by a simple structure, and to provide a winding drum which can prevent the generation of an unwanted contact mark on the sheet-like member. This winding drum having a hollow portion which is in communication with the intake holes of the drum body, a changeover member which is releasably attached in the hollow portion and which is formed so as to extend along the inner peripheral surface of the hollow portion, and an air passage (second communicating holes, first communicating hole, and hole) which is provided on the changeover member and which communicates intake holes of a predetermined range in the axial direction of the drum body with the suction device when the changeover member is attached in the hollow portion. So the range of air sucking intake holes is switched by changing the changeover member to another changeover member with another air passage.

Abstract: Disclosed herein is magnetic clamp device for clamping at least one first article to a ferromagnetic second article, comprising a housing, at least one magnet means located in the housing, handle means extending from the housing, the magnet means being of sufficient magnetic strength to form a couple between the magnet means and the second article with the first article there between, the handle means being of sufficient length to permit a user to install the device on an outer free end portion of a roll of sheet steel and to provide sufficient leverage to remove the device, the housing means including a pair of housing portions, each to extend along a corresponding peripheral region of the magnet element so as to substantially encircle the peripheral region of the magnet element.

Abstract: A device for continuous winding of webs on winding shafts onto winding rollers consisting of arms supporting the winding shaft, a pressure roller that can be engaged on the winding shaft or winding core, a knife separating the web during the roller change, and of a charging electrode supplying the web start with an electrostatic charge, which attaches the web start, newly formed by the web cut, on the winding shaft. In order to always maintain the correct equal distance to the web supplied with the charge, the same is tracked in such a manner that the distance of the charging electrode to the web remains constant regardless of the diameter of the winding shaft.

Abstract: A carrier tube includes a vacuum draw system for promoting receipt of a yarn tail end within a circumferential start-up groove of the tube. The draw system includes angled air-scoop openings extending through the tube wall adjacent the start-up groove to move air through the tube rotation. Each of the angled openings includes a narrowed venturi portion creating a zone of reduced pressure. The system further includes passages extending between the start-up groove and the narrowed portions of the air-scoop openings to connect the start-up groove to the reduced pressure of the openings.

Abstract: A winding or rewinding machine to wind a web material (N) and form a roll (R) around a winding spindle (13) is disclosed, comprising: at least a roller (5) in contact with said winding spindle in the initial phase of winding the web material around the spindle; a transverse cutting element (19) to cut the web material when a roll has been wound and form an initial free end to wind a subsequent roll around a new winding spindle. Moreover, at least an electrostatic bar (21) to electrostatically charge the web material is also provided. The roller (5) in contact with the spindle is made at least partially in non-electrically conductive material.

Abstract: A method and apparatus for winding a continuously delivered film web onto successively delivered winding tubes with a rotatably drivable contact roller, a winding station, associated with the contact roller, for the winding tube for winding the coil, a winding preparation station for receiving a new winding tube and beginning to wind the film web, and a transverse-cutting device for cutting the film web crosswise between the winding station and the winding preparation station. Associated with the winding preparation station for the new winding tube are a charger for generating an electrostatic charge of the new winding tube and a blower device for subjecting the film web to a blown air stream aimed counter to the feeding direction of the film web.

Abstract: Methods and apparatus for folding pliable sheet material wherein the sheet material is wound on a mandrel to form a roll which subsequently is stripped off the mandrel and transferred to a pleating station at which successive creases are formed in the roll to produce a pleated packet. During the winding of the sheet material the latter is adhered to the mandrel by the application of negative air pressure to the material via the mandrel. Following the formation of the roll, the application of negative air pressure is discontinued and positive air pressure is applied to the interior of the roll so as to facilitate stripping of the roll from the mandrel. At the pleating station the roll is creased successively to form a plurality of pleats and the direction in which the creasing proceeds is such as to facilitate the escape of air from the roll as it is pleated.

Abstract: An apparatus and method for turning-up a web is disclosed that results in greater efficiency. The method has been found to work especially well when the web is a bulky tissue web, but is also suitable for other web materials. The apparatus includes a reel spool having a cylindrical surface, the cylindrical surface includes at least one axial line of adhesive and a plurality of apertures operatively connected to a source of vacuum.

Abstract: A surface rewinding machine for the production of rolls of wound web material is described. The machine comprises: a winding cradle (1, 3, 5) for winding the web material and sequentially forming rolls (R) of wound web material; an insertion device (25) for inserting sequentially, into said winding cradle, winding spindles (M1; M) on which the rolls are formed; an insertion path for the spindles inside the winding cradle. A suction system (51) which follows the spindles along at least one portion of the insertion path so as to produce a vacuum inside the spindles is also envisaged.

Abstract: An apparatus and method for making coreless paper rolls includes a slitting machine having a winding arbor having a plurality of two-way air valves spaced over the tube wall of the winding arbor and being connected to a control valve for supplying compressed air or vacuum to the arbor, and a cutter design is provided.

Abstract: A method and apparatus for accumulating and densifying microfibers such as glass fibers having mean fiber diameters below 1-2 microns is disclosed. A fine fiber blanket having been collected on a collection surface is removed and wound up on a mandrel having a permeable surface while a partial vacuum, preferably exceeding one hundred inches of water column, is maintained in the interior of the mandrel.

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

Abstract: When a web of packaging material is fed to a folding turret (11), it is intended to change the web of material when the reel is empty with as little manual labour as possible. For this purpose, there is provided a severing and connecting unit (17), in which a running-off web (15) is automatically severed and connected to a connecting web (16) which is held ready. In order to join the webs in the proper position, a marking (mark 43) of the running-web (15) is scanned while the conveying speed is greatly reduced. After the marking has been detected, the web is stopped and the severing cut is applied while it is simultaneously joined to the connecting web (16) which is held ready precisely in the proper position. During this change of webs, the folding turret (11) can continue to operate, if a sufficient web store is present. It is, however, also possible to employ a loop store (18) with a smaller capacity ana to stop the folding turret (11) or a blank unit (12) for producing blanks for a short period.

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

Abstract: 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: An automatic web roll changing device is adapted to automatically and continuously supply web rolls to a web supply-connection apparatus on which are replaceably mounted two web rolls from which webs are alternately and continuously drawn out and which connects the trailing end portion of the preceding web to the leading end portion of the following web. This device includes a rotary arm pivoted to the web supply-connection apparatus having, at both ends, hubs carrying the above-mentioned two web rolls, and a web roll storage-mounting unit provided opposite to the web supply-connection apparatus. The web supply-connection apparatus has a rotary head which is rotatable about a vertical axis. From the rotary head horizontally extend a plurality of web roll storing shafts for holding a plurality of web rolls so as to be slidable axially of the shafts. The web rolls on the storing shafts are moved toward the distal ends of the web roll storing shaft by driving units so as to be mounted on the hubs.

Abstract: A tape cassette and a leader-trailer tape therefor capable of ensuring safe and positive connection between a leader-trailer tape and a magnetic tape, to thereby permit the magnetic tape to travel in a cassette casing with high reliability. The leader-trailer tape is provided thereon with a pressure-sensitive or heat-sensitive adhesive layer, so that the leader-trailer tape may be joined directly to the magnetic tape by heating or pressurizing while overlapping the tape body. Thus, the handling of the leader-trailer tape and the joining between the leader-trailer tape and the tape body may be facilitated without using any splicing tape and without causing any trouble such as sticking of the adhesive to a cutter.

Abstract: This invention provides a method of and an apparatus for sticking a paper web to a paper web threading member superposed on the paper web through the intermediary of an adhesive material.

Abstract: An apparatus for continuously unwinding a plurality of rolled-up tapes made of fusible material wherein the tapes are successively unwound, one at a time, from at least two rewinders for supporting the tape thereon, with the tail end of the preceding tape joined to the leading end of the following tape. The apparatus comprises a guide roller assembly for transporting the preceding tape via a joining station, a tape end sensor for detecting the tail end of the preceding tape, and a joining device for holding the following tape at its leading end as folded over and opposed to the preceding tape, thermally bonding the tail end of the preceding tape to the folded-over leading end of the following tape in response to a detection signal from the tape end sensor, and cutting off a portion of the resulting joint with only a required length thereof left uncut.

Abstract: Assembly fixtures for assembling and stuffing a ribbon into a ribbon cartridge for use with a typewriter, or a printer, comprises a base plate, stops on the base plate forming a space for receiving a ribbon cartridge, and an instruction card mounted on the base plate for instructing the operator how to assemble and stuff a ribbon cartridge. The instruction card may include three-dimensional drawings of the ribbon cartridge and its parts. A method of assembling and stuffing a ribbon cartridge includes the steps of providing an assembly fixture having a base plate and a ribbon cartridge space providing instruction cards mounted on the base plate for instructing an operator, guiding the ribbon cartridge into the cartridge space on the base plate, and following the instructions mounted on the base plate to assemble and stuff the ribbon cartridge.

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

Abstract: In a method and a device for paying out or hauling in a supply line cable of an underwater device from a ship or a suitable platform, the supply line cable is guided from a drum of a winch through a lower guide roller and over the edge of the ship. A pivoting device is rotated from a vertical position into a horizontal position about the axis of the lower guide roller, or about an axis parallel thereto, for lockingly coupling or uncoupling the cable coupling of the supply line cable to a cable coupling of another supply line cable. As a result of the rotation of the pivoting device, it serves as a horizontal working platform for the coupling or uncoupling process. The pivoting device is returned to its vertical position after the coupling or uncoupling has been completed. The pivoting device is dimensioned in such a manner that the cable couplings of the two supply line cables can be aligned with one another at a spatial distance governed by necessary cable connecting lines.

Abstract: This invention relates to a remaining paper rewinding device for a paper feeding apparatus in a printing system. This device has a simple structure with a compact size, which can be easily assembled and whose maintenance can be easily carried out.The remaining paper rewinding device comprises a rotary shaft rotatively driven, a pair of Y-form paper roll support members which are oppositely arranged on the rotary shaft, a plurality of paper roll support stems each of which is pivotally arranged on the same circumference of the paper roll support member and in parallel to the rotary shaft so that the opposite support stems are aligned with each other, a plurality of drive units each of which is assembled on the paper roll support stem arranged on at least one side of the paper roll support members, and a drive power transmission unit which can be selectively engaged with the drive unit to transmit the rotating drive force from a power unit to the engaged drive unit.

Abstract: For making a web connection, an adhesive tape is used which essentially features on only one side an adhesive layer. The cover foil of this adhesive layer is comprised of two parts that are separated by a longitudinal seam. Applied on the other side of the substrate of the adhesive layer is at least one narrow adhesive strip, also having a cover foil, which preferably is contained on an edge of the adhesive tape.

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

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

Abstract: A splicing block assembly and a splicing tape dispenser applicator for a cassette-loading machine.

Abstract: A cylindrical seizing element (3), made up of a fixed tubular part (32) comprising a cylindrical sector-shaped aperture (30) having a series of teeth (34) and of a movable inside part (31) also having a series of teeth (36) interposed between the first series of teeth, seizes the ends of turns of paper previously severed on a fresh reel of paper and brings the strip of paper unwinding from this fresh reel opposite a strip unwinding from an expiring reel. A splicing device comprising two rollers which are pressed against one another, one on each side of the two strips of paper, creates a splice through perforation of the two strips in an arrangement ensuring the strength of the splice. The method and apparatus are designed especially for integration in a single piece of equipment and for reliably joining two strips of paper intended to encircle cigarette filters.

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.

Abstract: In one embodiment of a web accumulator, at least one pneumatic cylinder actuator has a chain loop connected to opposite ends of its piston rod. Translation of the chain in response to pressurizing the cylinder causes the chain to drive two spaced apart axle shafts in the same rotational direction. An arm is fastened to each axle shaft and there is a row of rollers on each arm and a roller on each axle shaft. Web is threaded in loops back and forth between rollers on the respective arms. When the web infeed rate to the accumulator and the outfeed or rate at which the web is drawn out by a web consuming device are equal, the regulated air pressure to the actuator drives the arms apart to thereby accumulate a long length of web. When web infeed is interrupted while outfeed or draw persists, the arms are pulled toward each other and they pay out the stored length of web.

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. The free end is connected to a take up reel. Tape clamps bring the overlapping layers of tape down onto the cutting/connecting section and are then cut. One of the tape clamps is withdrawn while an applicator applies a piece of adheseive tape in a manner which splices a continuous loop of tape.

Abstract: To permit essentially automatic control of roll changing to change between an old roll and a replacement roll of printing machine paper, adhesive is applied to the old roll, at predetermined locations, as the old roll runs off, and the now sticky surface is engaged against the beginning portion from the new roll, the old roll then being severed within the range of the still sticky portion to ensure complete adhesion of substrate from the old roll on the substrate of the new roll. Excess adhesive which is not covered by substrate from a new roll is deactivated by a deactivating element (7) positioned in advance of any deflection roller to prevent accumulation of adhesive on any elements of the roll changer of the printing machine.

Abstract: A splicing block assembly for splicing a length of leader tape connected to a hub of a cassette to a length of magnetic tape while the cassette is in a cassette load which includes a splice block mounted for reciprocating lateral movement between a first position in tape alignment with a first cassette position and a second position in tape alignment with a second cassette position. The splice block has a planar splicing surface segment having at least one tape receiving elongate track therein. A shift block is mounted on the splice block. The shift block has a planar splicing surface segment flush with the planar splicing surface of the splice block with first and second tape receiving tracks therein. The shift block is mounted on the splice block for reciprocating lateral movement between a first position where the first track is in tape alignment with the track of the splice block and a second position where the second track is in tape alignment with the track of the splice block.

Abstract: A roll changer for delivering a web of material has, for edge-aligned connection of the trailing end of a delivered web with the leading end of the web from a new roll, in addition to the web edge-sensor controlling the position of the delivery roll during such delivery, a roll sensor responsive to the position of the edge of the outermost turn of the new roll, adjusting the axial position of the new roll. The sensors are switched to the respective controllers upon rotation of the roll turret to deliver a new roll to the waiting position.

Abstract: The splicing of webs of packaging material delivered via a pair of individual feed zones into a common feed zone is accomplished through the use of a pair of cooperating change-over rollers located at the start of the common feed zone. A clamping device is provided for each web and the change-over rollers are provided with projections which cause the leading end of one web to be pinched against the other web to cause the two webs to be spliced together, the other web being subsequently severed at a point immediately upstream of the splice. The clamping devices, change-over rollers and severing devices may all be caused to operate automatically in the proper sequence.

Abstract: The present disclosure is related to an automatic material extension machine, and more particularly to a rotatable abutment type extension machine adapted for continuously drawing out rolled up material mounted on rolls by friction for further processing; which includes an abutment balance transmitter and an automatic end-joining device, and is mainly applied to tape, wall paper and leather substance prepared in rolls. The abutment extension transmitter has two sets of developing rollers on which are disposed the rolls ready to be operated; one of the sets is identified as action set and the other is called stand-by set; the former uses driving motor to actuate two cylinders which are in abutment with the roll of material so to make the rolled-up material outwardly extended by friction.

Abstract: The present invention relates to a tape transport apparatus and a tape introduction method for forming a magnetic tape into an endless loop by splicing a leader tape to the magnetic tape and running such endless-loop magnetic tape therein. When an endless loop is shaped by splicing the magnetic tape and the leader tape to each other, the starting (front) end of the magnetic tape is drawn out to a splicing position while the front (fore) end of the leader tape is also brought thereto and, after the respective ends are spliced together, the endless loop is moved until the spliced portion between the magnetic tape and the leader tape is shifted to the splicing position for the leader tape. The starting front end of the magnetic tape led by such leader tape is then spliced to the terminal rear end of the magnetic tape, so that an endless loop is formed automatically without the necessity of the performance of operation by hand upon the magnetic tape.

Abstract: A paper web threading apparatus for a rotary printing press comprises a paper web threading member guide provided along a paper web threading path of the printing press extending from a paper web supply section to a position just in front of a folding section; a paper web threading member pooling section provided downstream of the paper web threading path; a paper web threading member which is located over the whole length of the paper web threading path extending from the most upstream position thereof to the paper web threading member pooling section upon commencement of the paper web threading operation and which is run along the paper web threading member guide towards the paper web threading member pooling section during the paper web threading operation; a paper web retaining member provided on the paper web threading member for securing the paper web to the threaded along the path; and at least one paper web threading member driving unit for running the paper web threading member along the paper web th

Abstract: An envelope machine which makes two envelopes at once. One web is used up to a relatively advanced point in the envelope forming process to simultaneously form two envelopes. At a terminal portion of the envelope processing, the web is cut lengthwise to form two envelopes. The device also includes improved structure for maintaining uniform the tension on the web. This need for uniform tension is made more prevalent by the thickness of the web which must be used to form two envelopes in parallel. The structure of the present invention which maintains uniform the thickness of the web is formed herein by a dancer roll which moves in a longitudinal fashion in cooperation with movement of other associated rolls. Whenever the dancer roll reaches one of its stopping points, it sets off a limit switch which operates a piston to change the type of moving being applied to the dancer rolls.

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

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

Abstract: A linear beam splicer including a splicing unit mounted on a frame and positioned between a beam support rack and a tufting machine. The splicing unit includes a frame carrying a grip and gauging bar assembly for holding the yarns to be spliced, and a longitudinally extending heating element mounted on the frame and extending parallel to and below the grip and gauging bar assembly. The heating unit is pivotally connected at each end thereof to the frame by an oscillating crank mechanism, whereby the heating element is moved in a linear direction against the yarns to be spliced, whereby all the yarns are spliced simultaneously.

Abstract: A tape dispenser includes an automatic tension control mechanism and provision for auto-splicing the tail portion of one tape to the leading portion of another.

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

Abstract: Disclosed is taping equipment for a web feeding device wherein feeding of a web from a web roll is achieved by the free rotation of center blocks, and the web is rewound by rotationally driving the center blocks in the direction opposite to the web delivering direction, comprising a lifter; a roller rotatably supported at one end of a first arm pivotally supported upon a support disposed upon the upper surface of the lifter by means of a shaft, and upon which an adhesive tape delivered from a tape roll removably attached to the shaft is conveyed with the adhesive surface thereof facing outwardly; a first actuator connected to the other end of the first arm which rotates the first arm around the shaft so as to bring it to a position at which the roller is abutted against the circumferential surface of the web roll or to the position at which the roller is spaced from the web roll; a cutter disposed at the tip of a second arm; a second actuator connected to the second arm which rotates the second arm around the

Abstract: A film holding reel includes a deformable hub on one portion thereof, and a compound lever hub deforming mechanism is used to deform that hub from a film supporting size and configuration to a film releasing size and configuration. The lever mechanism is adapted to move easily from a position in which the hub is undeformed, to an intermediate position, and then to require further manual actuation to move to a position in which the hub is in the film releasing size and configuration. A selected film portion can be changed using the film holding reel.

Abstract: A machine for slitting sheet material into continuous strips and winding those strips into coils includes a change-over mechanism by which a fully wound coil is replaced by a replacement core and the winding of a subsequent coil proceeds without interruption of the winding process.

Abstract: Web splicing method and apparatus for use in a web supply line are disclosed in which the following ends of first and second webs respectively wound around first and second old rolls are respectively spliced to the leading ends of first and second webs wound around first and second new rolls to thereby unwind the first and second spliced webs simultaneously and successively and the first and second spliced webs are superposed on each other at a predetermined meeting point before they are supplied. In the web splicing method and apparatus, the timing of start of splicing of the second web is controlled in accordance with the time of completion of the splicing of the first web so that the relative positions of the respective spliced portions of the first and second webs can be shifted from each other by a preset distance or the relative positions thereof can be made to coincide with each other.