Abstract: A dispenser assembly facilitating selective dispensing of sheet material from a plurality of supplies of sheet material can be provided. The dispenser assembly can include a drive system to facilitate dispensing of the sheet material from the plurality of supplies of sheet material from the dispenser. The drive system can include a plurality of driven rollers each configured to engage and move sheet material from a respective supply of sheet material, and a drive mechanism driving the plurality of driven rollers and connected thereto by a belt driven transmission. When the drive mechanism is driven in one direction, one of the plurality of driven rollers is rotated to dispense sheet material from one of the plurality of supplies of sheet material, and when the drive mechanism is driven in the opposite direction, another one of the plurality of driven rollers is rotated to dispense sheet material from another supply of sheet material.

Abstract: The present disclosure provides a printed circuit board and a manufacturing method of the printed circuit board. The manufacturing method may include: at least two core plates may be provided; a composite anti-glue film assembly may be arranged at a preset position of one of the at least two core plates, the composite anti-glue film assembly may include a first anti-glue film layer, a second anti-glue film layer and a bonding layer. The first anti-glue film layer may contact the preset position. The first anti-glue film layer may be a polyimide layer. The bonding layer may be configured to bond the first anti-glue film layer and the second anti-glue film layer together to produce the composite anti-glue film assembly. Two adjacent core plates may be connected through a medium layer. The core plates may be cut-out and form the printed circuit board.

Abstract: A belt inspection system to detect a belt defect of an intermediate transfer belt of an image forming apparatus using a first belt image obtained by photographing the intermediate transfer belt, performs a preprocessing on the first belt image to generate a second belt image, detects a candidate for the belt defect from the second belt image, and performs, in the preprocessing, a noise removal processing to remove a specific noise included in the first belt image, the specific noise including a noise caused by the photographing, a noise of a specific size based on an average size of the belt defect, and a band-shaped or streak-shaped noise extending in the width direction of the intermediate transfer belt.

Abstract: A feed assembly for dispensing rolled web material from a bulk roll of material and that includes a feed drum and a pair of pinch rollers that cooperate with the feed drum. The feed drum and pinch rollers are oriented and constructed to mitigate jamming and/or undesired displacement of the web material as it progresses through the feed assembly. Preferably, a drum guard is disposed between the pinch rollers and is constructed to further mitigate undesired translation of the web material relative to the feed assembly during dispense operations.

Abstract: In one aspect, the present disclosure is directed to a sheet material dispenser that includes a feed roller that is rotatable to facilitate dispensing of the sheet material from a discharge in a housing of the dispenser. The dispenser can have a cutting assembly that includes a cutting blade and at least one movable support coupled to cutting blade and that is actuated with rotation of the feed roller to cause movement of the cutting blade to at least partially cut, score, or perforate the sheet material during dispensing thereof. The dispenser also can have a biasing assembly coupled to the feed roller body to assist rotation of the feed roller body and/or movement of the cutting blade. Other aspects also are described.

Abstract: A dispenser having a feed roller that at least partially engages sheet material to facilitate dispensing thereof, and a cutting mechanism disposed within a chamber defined by a body of the feed roller. The cutting mechanism including a cutting blade and at least one movable support connected thereto. The at least one support further is operatively connected to the body of the feed roller and is actuated with rotation thereof to move the cutting blade into and out from one or more openings defined along the body of the feed roller to at least partially cut or perforate a selected portion of the sheet material as the sheet material is dispensed.

Abstract: A sheet punching device including: a die which has a die hole and is configured to be driven to rotate; a punch configured to move in and out of the die hole to punch a hole in a sheet; and a punch operating unit configured to reciprocate the punch with respect to the die hole in a state in which the punch is opposed to the die hole of the die, to move the punch in and out of the die hole.

Abstract: A punch apparatus includes a drive unit and a driving force transmission mechanism that transmits a driving force output by the drive unit to a rod. In the driving force transmission mechanism, a cam groove is formed in a cam block connected to a piston rod, and a rotating roller, which is pivotally supported on a displacement body connected to the rod, is inserted through the cam groove. The cam groove has a first groove portion and a second groove portion, which are inclined at predetermined angles of inclination with respect to the displacement direction of the cam block. When the rod is made to descend toward the workpiece, the rotating roller moves from the second groove portion into the first groove portion, which has a small angle of inclination, whereby the driving force transmitted to the rod is boosted.

Abstract: A die-cutting device for die-cutting labels includes a die-cutting cylinder and a counterpressure cylinder. A distance between the die-cutting cylinder and the counterpressure cylinder is adjustable. Accordingly, the die-cutting cylinder is locked in position by a locking force and the counterpressure cylinder is displaceably supported by a guide. The locking force and the guide generally form a right angle. A narrow-web printing press includes such a die-cutting device.

Abstract: A high-speed shear for transversely cutting rolled strip with knife carriers which can be driven for rotation and are arranged in pairs opposite each other. The knife carriers are supported on shafts of gear wheels arranged at a fixed axial spacing in pairs opposite each other in a shear cassette. The shear cassette is mounted within an outer frame and the shear cassette is provided with a lifting device for raising or lowering the shear cassette within the outer frame. In a method for operating the shear, the two knife carriers are moved into a horizontal position for allowing the strip end to enter or travel through, and the shear cassette is moved within the outer frame into a raised transfer position.

Abstract: Apparatus for dispensing sheet material from a sheet material dispenser are described. Dispenser embodiments include drive and tension rollers supported within a housing forming a nip therebetween. Pulling of sheet material through the nip and against the drive roller rotates the drive roller. Dispenser embodiments may include a cutting mechanism powered by drive roller rotation with an improved carrier-supported blade permitting highly-efficient dispenser operation. Dispenser embodiments may include a sheet material tail length adjuster which permits the attendant to shorten or lengthen the tail length extending away from the dispenser. Dispenser embodiments may further include a sheet material conservation feature which imposes a delay between dispense cycles encouraging use of a single sheet of material and discouraging sheet material waste.

Abstract: A device for the distribution of paper portions has a rotatable roller which is formed with a slot and over which a paper web is guided. A blade which is arranged on at least one carrier movable within the roller and is movable in and out through the slot over a part of the roller rotation. Each carrier is reciprocatable in the slot of the rotating roller and is guided rotationally along a non-circular stationary cam path.

Abstract: A hybrid towel dispenser is provided that can be operated in an automatic dispensing mode and a manual dispensing mode. The dispenser includes a drum having a retractable knife that extends out of the drum when the drum rotates past a selected position and severs a towel segment from a towel sheet. The dispenser also includes a motor, a manual advance assembly, and a one-way rotational coupling that couples the motor to the drum such that the motor rotates the drum in the automatic dispensing mode and a user can rotate the drum in the manual dispensing mode separately from the motor, using the manual advance assembly.

Abstract: A device for loading strips of wipe material for wipe material dispensing machines of the type including a housing that accommodates lateral side pieces which support a drum including a cutting device and a strip of material located above the drum, is distinctive in that it comprises a dual arrangement with, firstly, an enclosure that is concentric with the drum and defines, together with the drum, a gap through which the strip of material passes and, secondly, at least two rollers arranged parallel to each other and rotatably mounted relative to the lateral side pieces of the housing and meshing with a sprocket joined to the drum. An intermediate roller is fitted between the at least two rollers and make it possible to insert the strip of material into the gap between the enclosure and the drum and then eject it towards the front of the machine.

Abstract: A hybrid towel dispenser is provided that is operable in an automatic dispensing mode and a manual dispensing mode. The paper towel dispenser comprises: a rotatable drum that advances a paper towel sheet applied on the drum when the drum rotates; a one-way rotational coupling; a motor coupled to the drum by the one-way rotational coupling and automatically operable to rotate the drum; and a manual advance assembly coupled to the drum and manually operable by a user to rotate the drum. The one-way rotational coupling couples the motor to the drum such that the motor drives the drum in a first direction and does not drive the drum when the manual advance assembly is operated to rotate the drum in the first direction.

Abstract: Apparatus for dispensing sheet material from a sheet material dispenser are described. Dispenser embodiments include drive and tension rollers supported within a housing forming a nip therebetween. Pulling of sheet material through the nip and against the drive roller rotates the drive roller. Dispenser embodiments may include a cutting mechanism powered by drive roller rotation with an improved carrier-supported blade permitting highly-efficient dispenser operation. Dispenser embodiments may include a sheet material tail length adjuster which permits the attendant to shorten or lengthen the tail length extending away from the dispenser. Dispenser embodiments may further include a sheet material conservation feature which imposes a delay between dispense cycles encouraging use of a single sheet of material and discouraging sheet material waste.

Abstract: Apparatus for dispensing sheet material from a sheet material dispenser are described. Dispenser embodiments include drive and tension rollers supported within a housing forming a nip therebetween. Pulling of sheet material through the nip and against the drive roller rotates the drive roller. Dispenser embodiments may include a cutting mechanism powered by drive roller rotation with an improved carrier-supported blade permitting highly-efficient dispenser operation. Dispenser embodiments may include a sheet material tail length adjuster which permits the attendant to shorten or lengthen the tail length extending away from the dispenser. Dispenser embodiments may further include a sheet material conservation feature which imposes a delay between dispense cycles encouraging use of a single sheet of material and discouraging sheet material waste.

Abstract: A hybrid towel dispenser is provided that can be operated in an automatic dispensing mode and a manual dispensing mode. The dispenser includes a drum having a retractable knife that extends out of the drum when the drum rotates past a selected position and severs a towel segment from a towel sheet. The dispenser also includes a motor, a manual advance assembly, and a one-way rotational coupling that couples the motor to the drum such that the motor rotates the drum in the automatic dispensing mode and a user can rotate the drum in the manual dispensing mode separately from the motor, using the manual advance assembly.

Abstract: Disclosed is a sanitary or no-touch dispenser which dispenses sheets of a web material, such as a paper towel. The disclosed dispenser provides the web material to a user by using both manual and electronic means to dispense the sheet. This is accomplished by having a motor engagably connected to an actuator roller. The motor is activated by a motor activation means, such as a switch. The motion of the actuator roller, which is started by the user grabbing and pulling a tail of the web material extending from the dispenser, causes the motor activation means to activate the motor which in turn drives the actuator roller to continue it its rotation motion to dispense the sheet from the dispenser.

Abstract: A format selecting device makes it possible to control distribution of material band formats in a one-to-two ratio, wherein the position of the format selecting device enables a cutting blade to come out from a drum at each revolution thereof, for a small format and at each two revolutions per large format. The selecting device acts and initiates a ratio of sprocket assemblies at which sprockets are meshing therebetween for a small format distribution, and certain sprockets are punctually disengaged on the drum revolution for distributing large formats and cancellation of the blade exit outside of the drum. The selecting device is positioned from a flange of a housing and comprises an operating lever provided with two fixed stops which are remote and arranged on the flange defining an angular space corresponding to the lever pivoting in the top or lower part according to a selected format.

Abstract: The film sealing and wrapping machine with a rotary cut and seal jaw is provided. The rotary cut and seal jaw has an internal sliding mechanism which provides for smooth and quiet operation. The rotational speed of the jaw may be varied to increase through put and to provide for a title bag around products. The rotary cut and seal jaw may comprise a seal bar and pressure pad may both be spring loaded to self align the seal bar and pressure pad during the sealing and cutting process. Lastly, a gap defined by a belt disposed upstream and downstream of the seal bar and pressure pad may be mechanically linked to the pressure pad through a control carriage.

Abstract: A piercing device includes an outer tube rotatably supported on a first shaft and eccentrically arranged relative to a second shaft, so as to be driven for rotation. Piercing needles are arranged on the second shaft, spaced from each other in a circumferential direction, projecting radially outwards, rotatable about a second axis, and extendable and retractable relative to an outer surface via holes in the outer tube. A needle restraining member, rotatably supported on the second shaft, transmits torque to the piercing needles when driven for rotation. The first plurality of needles rotate in unison, as do the second plurality of needles and are fixedly connected to support members; thus, protecting the needles from unreasonable force and preventing undesirable enlargement of pinholes and deformation of the rubber sheet. Further, when the needles are advanced into the rubber sheet and retraced therefrom, enlargement of the rubber sheet pinholes can be prevented.

Abstract: A rotary forming apparatus of the type having a pair of central rotors, and one or more die carriers swingably mounted on the rotors, for repeatedly forming a sheet metal work piece moving along a linear path, rotor bearing supports for supporting the rotors at least at one end thereof, die carrier guides on the die carriers at an end thereof adjacent to the rotor bearing supports, and, at least two cam plates adjacent to each the rotor bearing support, for guiding the die carriers guides.

Abstract: A wiping material dispenser includes a drum receiving a cutting blade holder. An extension of one of the drum lateral sides comprises an offset supporting plate provided with an opening for fixing an end of the blade holder. A toothed sector is mounted on the end and interacts with a gearwheel freely mounted on the drum axis and connected to a hooked cam. The drum has a projected element having a ramp profile. A lateral flange of a housing receiving the drum axis makes it possible to fix a shaped body exhibiting elastic pivoting capacity in order for an end thereof to interact with the hooked cam or the projected element.

Abstract: A paper towel dispensing apparatus, includes a housing having a cover, a drum, an associated cutting device incorporated in the drum, and a stored energy mechanism. The cutting device having plural blades that are spaced apart from each other. A space between blades is adjustable so that tails of differing sizes can be obtained when the paper towels are dispensed. Accordingly, different tensile strength towels can be used with the same dispenser.

Abstract: A cutting tool for cutting labels may include a housing arranged such that it can rotate about a rotation axis and a cutting element detachably arranged on the housing. The cutting element may have a cutting edge extending substantially in a direction parallel to the rotation axis. The cutting element may be arranged such that it can move relative to the housing. A first spring body may be structured and arranged to cushion a movement of the cutting element in a radial direction of the housing.

Abstract: In the present invention, a sheet is disposed inside a material that is the target for forming a recess, the sheet having a first physical property that is different from a physical property of the material and having a planar shape identical to the planar shape of a recess to be formed. Then, the material is cut in a depth direction from a first surface of the material using a cutting tool. At this time, a physical property of a deepest part of the cut portion is detected using a detector, and cutting in the depth direction is terminated when the property is equal to the first physical property. The material is cut also in a horizontal direction that is substantially parallel to the first surface to form a groove, thereby dividing the first surface into a first region having a shape identical to the planar shape, and a into second region that is the other region. Lastly, the material between the sheet and the first surface in the first region is peeled off.

Abstract: A device for controlling outward movement of a cutting blade of a drum in wiping material dispensing equipment is distinctive in that one of the flanges of the casing is designed with rings having a fixed position and formed during molding of an inner side of the flange facing the drum and being applied against a facing edge of the drum. The end flange of the drum on its lateral edge has a projecting profile forming a bar arranged for the fixing and pivoting of the blade holder and having a cutout to receive a locking member formed on a lever mounted to pivot with the blade holder. Each of a first central ring and the lever located on the flange and the drum, respectively has two shaped protuberances which interact at certain stages of operation. One of the other rings formed on the flange is designed to interact with the locking member formed on said lever at certain stages of operation when the drum rotates.

Abstract: Wiping material dispenser apparatus includes a basic housing that receives an articulated cover and a cartridge including two transverse flanges. An upper part of the flanges receives a roll of material and a lower part thereof receives a first blade-holder drum and a second return drum, the drums receiving crown wheels for the connection thereof. The return drum receives a third crown wheel that co-operates with the drum rotation actuation mechanism which includes a fixed cam. The blade-holder arm is provided with transmission means that involve the use of a mobile cam which actuates the cutting blade. The fixed and mobile cams co-operate with one another, defining the trajectory of the cutting blade.

Abstract: To produce at least one perforation in a non-woven sheet (N) of fibers or filaments, the sheet (N) is brought into contact with a perforated cylinder (2), equipped with at least one insert (8). Each insert includes, at one end, a plane surface (S), and is provided with a recess (8b) which emerges in the plane surface (S), and which has a sharp edge (8g) formed by the intersection of the inner surface (8f) of the recess (8b) with the plane surface (S). A perforation in the non-woven sheet (N) is obtained by cutting out a portion (P) of the non-woven sheet (N) by shearing of the fibers or filaments of the non-woven sheet (N), between the sharp edge (8g) of the insert (8) and a perforating member (9) driven simultaneously in translation and in rotation about its own axis.

Abstract: A machine for dispensing a strip of material comprises a housing accommodating an internally hollow drum with a longitudinal slit which accommodates an articulated cutting device, and two end shields of articulated design to accommodate a reel holder which supports a reel of wipe material. The drum is associated with means of starting, and a load button. The machine is distinctive in that it includes a device for monitoring and repositioning the reel of wipe material which comes into action once during each revolution of the drum. The device being designed on the drum and having localized contact with the reel once during each revolution of the drum and causing said reel to be repositioned.

Abstract: A dispenser has an autonomous unit comprising: a roll dispenser for dispensing a roll of material, a cutting drum, and side panels. A rear profile of the side panels comprises an edge and corresponds to an internal profile of a case. A lower part of a lower face of said edge extends into a tongue which can be locked and positioned in a housing. The housing is formed by the front part of the base wall of the case for rails, which are used to position the lower edges of the side panels. The upper parts of the side panels are formed with an elastic tongue. Each tongue receives a shaped locking tab which is positioned behind tabs that form hooks on a rear face of the case.

Abstract: A control and safety device for a machine for dispensing strips of material having a belt mounted between a drum (4) and a shaft (9) in a floating mount. The shaft receiving the belt having an axle of narrower diameter than the shaft in its central part opposite a groove formed on the drum. The axle has a dimension greater than the width of the groove (4b) formed on the drum, so as to enable an oblique lateral displacement of the belt, which thus accompanies, according to a limited amplitude ?, the longitudinal direction in which, for example, a paper strip is being pulled out of the machine by the user.

Abstract: A cutting wheel assembly for cutting elongated articles having a cylindrical housing which defines a longitudinal cavity and a circular outer periphery. A plurality of cutting blade support rings are rotatably mounted about the outer periphery of the housing. A plurality of cutting blades are mounted for radial movement on each ring and disposed at angularly spaced increments about the housing, wherein each blade is moveable between a first, non-cutting position and a second, cutting position. A manifold and valve assembly is mounted in the cavity and proximate the blades for selectively directing a pulse of fluid against individual blades at preselected angular positions to urge the blades outwardly from the non-cutting position to the cutting position. A plurality of camming components are positioned about the periphery of the housing and secured against rotation adjacent the rings.

Abstract: A cutting and transport roller and a process for cutting the material webs which rest on the peripheral surface of the cutting and transport roller. In so doing, the material webs are severed with the aid of a cutter, which is located inside the shell of the cutting and transport roller in its resting position and which exhibits at least one knife, which during the cutting process of the material web reaches through an opening in the shell of the cutting and transport roller. The cutting motion, which is executed by the cutting surfaces of the knife during the cutting process, exhibits rotary components, whereby the rotational motions of the knife run about an axis of rotation, which is either parallel or at an acute angle to a perpendicular line on the plane which is defined by the radial (r) and axial (z) coordinates of the cutting and transport roller.

Abstract: A cutting wheel assembly for cutting elongated articles includes a substantially cylindrical housing which defines a longitudinally disposed cavity and a substantially circular outer periphery. A plurality of cutting device support rings are rotatably mounted about the outer periphery of the cylindrical housing. A plurality of cutting devices are mounted for radial movement on each cutting device support ring, and disposed at angularly spaced increments about the cylindrical housing, and wherein each cutting device is radially moveable between a first retracted non-cutting position, and a second extended cutting position. A manifold and valve assembly is mounted in the longitudinally disposed cavity and proximate the cutting devices for selectively directing a pulse of fluid against individual cutting devices at a preselected angular position to urge the respective cutting devices substantially radially outwardly from the retracted non-cutting position to the extended cutting position.

Abstract: Cutter for cross cutting of reeled webs comprising a rotary cutting assembly including a blade and a counter blade rotated in synchronism with an advancement assembly of the web. The rotation axes of the blade and of the counter blade are displaceable relative to each other, perpendicularly to the web, and a gear actuator is provided to operate mutual approaching thereof when the blade and the counter blade are placed in a mutually facing angular position for cutting the web. The blade and the counter blade are rotated only at the time of cutting.

Abstract: A dispensing machine includes a housing, a cover, a drum, a cutting blade built into the drum, and a cam and a start and return spring for starting and returning the drum. Lateral end shields of the housing support the reel of material. A pressing roller pushes against the strip of material at a specific point and a second pressure area where the strip of material is cut at the level of the drum. The pressure roller is articulated and pivoted by two swivelling levers so that it presses against the reel of material, thereby defining a distance between the tensioning areas defined by reel/pressure roller contact and drum/cutting blade ejection of about 25 to 50 cm. The two levers are not joined together and pivot independently so that the pressure roller swivels with variations of each of said levers to match the profile of the reel of material.

Abstract: A roll web guide system for defining a web travel path in a dispenser is provided. The web guide system includes a drive roller that is rotatably mounted within the dispenser. The drive roller defines at least one annular groove. A guide roller is also present. The guide roller is urged toward the drive roller to form a nip with the drive roller. The guide roller defines at least one annular groove therein. A plurality of stripper guides are partially disposed within the annular grooves of the guide roller and drive roller. The stripper guides prevent the web from wrapping around the guide roller and the drive roller.

Abstract: Mechanism for cutting and distributing portions of sheet, particularly paper towels, comprising at least one cylinder (9) which can rotate around its axis in a supporting structure (1, 2, 3) and drag an end portion (8) of at least one sheet, inside said cylinder (9) being arranged one or more movable blades (28) which can protrude outside the cylinder (9) for cutting said end portion (8) of the sheet and are fixed to a shaft (26) suitable for rotating around an axis parallel to the longitudinal axis of the cylinder (9), wherein said shaft (26) is provided with at least a first member (30) which protrudes from one side of the cylinder (9) and can be rotated for an arc of a circumference by at least a second member (25) which shifts in a direction parallel to the longitudinal axis of the shaft (26) of the movable blades (28) and rotates around this axis, the rotational-translational motion of this second member (25) being synchronized with the rotatory motion of the cylinder (9).

Abstract: An automatic paper dispensing apparatus includes a molded plastic housing and a protective cover hingably attached to the housing, the housing further including a pair of parallel end shields disposed in a lower part of the housing. Each of said parallel end shields are perpendicular to a rear plane of the housing and spaced to allow positioning of a rotatably supported support drum and a pressure roller disposed in relation to the drum to ensure feeding of a strip of paper from a take-off reel disposed in an upper part of the housing. Each of the end shields include elastically deformable tongues having recesses to accommodate the pressure roller and to position opposing ends of the support drum, wherein the support drum is a unitary member comprising a smooth continuous area extending over essentially one-half the outer periphery of the drum, and having a plurality of discs spaced over the entire length thereof.

Abstract: An automatic paper dispensing apparatus for dispensing one of toilet paper and paper towels includes a protective cover hingably attached to the housing, in which the housing of the paper towel dispensing version of said apparatus further includes a pair of parallel end shields disposed in a lower part of said housing, each of the parallel end shields being perpendicular to a rear plane of said housing and spaced to allow positioning of a rotatably supported support drum and a pressure roller used to ensure feeding of a strip of paper from a take-off reel disposed in an upper part of the housing. Each of the end shields include elastically deformable tongues having recesses to accommodate the pressure roller and to position opposing ends of the support drum. The housing of the toilet paper dispensing version includes a front end shield and a rear wall, each of the front end shield and a rear wall of the housing being spaced to allow positioning of the support drum and the pressure roller therebetween.

Abstract: The invention relates to a device for the transverse cutting of a web, whereby the cutting blades can be optionally withdrawn to allow, for example, a spoil-generating web to be diverted from a folding apparatus without problems.

Abstract: A dispenser for sheet material such as paper towels. The paper towels are provided in a continuous roll. The roll is mounted within an enclosure above a drum. The drum contains a cutting assembly that moves between a retracted position and a cutting position. The cutting assembly cuts the sheet material when in the cutting position. The sheet material frictionally engages the drum such that pulling the sheet material out of the enclosure causes the drum to turn. The turning of the drum causes the cutting assembly to move between the retracted and cutting positions once every revolution of the drum. More specifically, a guide projection is formed on the cutting assembly, and a track assembly is formed on the enclosure. The guide projection engages the track assembly to cause the cutting assembly to move between the retracted and cutting positions.

Abstract: Apparatus for dispensing paper toweling includes a rotatable toweling support roller and a cutter blade pivotally mounted on the outer peripheral portion of the roller. The blade is movable between a first position in which the cutting edge of the blade is positioned closely adjacent to the outer peripheral portion and a second position in which the blade is disposed at an angle relative to the outer peripheral portion with the cutting edge of the blade spaced from the toweling support roller. The cutter blade when in the second position projects in a direction generally opposed to the direction of rotation of the toweling support roller so that pulling force exerted on the toweling by a user will bear against the cutting edge of the cutter blade to sever the toweling.

Abstract: A drum includes a hub defining in its central part a ring acting as a point for fixing and adjusting the cylindrical portion of the drum along variable positions by defining a variation in the material length strip format. The cylindrical portion of the drum is arranged in two parts capable of having a movement spacing one from the other by elastic deformation of one of the cylinder parts so as to define the drum circumference and the format variation, the parts capable of being mutually locked in position.

Abstract: An automatic paper dispensing apparatus for dispensing one of toilet paper and paper towels includes a protective cover hingably attached to the housing, in which the housing of the paper towel dispensing version of said apparatus further includes a pair of parallel end shields disposed in a lower part of said housing, each of the parallel end shields being perpendicular to a rear plane of said housing and spaced to allow positioning of a rotatably supported support drum and a pressure roller used to ensure feeding of a strip of paper from a take-off reel disposed in an upper part of the housing. Each of the end shields include elastically deformable tongues having recesses to accommodate the pressure roller and to position opposing ends of the support drum. The housing of the toilet paper dispensing version includes a front end shield and a rear wall, each of the front end shield and a rear wall of the housing being spaced to allow positioning of the support drum and the pressure roller therebetween.

Abstract: An automatic paper dispensing apparatus includes a molded plastic housing and a protective cover hingably attached to the housing, the housing further including a pair of parallel end shields disposed in a lower part of the housing. Each of said parallel end shields are perpendicular to a rear plane of the housing and spaced to allow positioning of a rotatably supported support drum and a pressure roller disposed in relation to the drum to ensure feeding of a strip of paper from a take-off reel disposed in an upper part of the housing. Each of the end shields include elastically deformable tongues having recesses to accommodate the pressure roller and to position opposing ends of the support drum, wherein the support drum is a unitary member comprising a smooth continuous area extending over essentially one-half the outer periphery of the drum, and having a plurality of discs spaced over the entire length thereof.

Abstract: An apparatus for dispensing a paper wiping material includes a toothed spur mechanism which includes an arm which pivots counter to an elastic return relative to a pivotally mounted cutter blade holder. The arm includes a curvilinear section having a plurality of teeth which engage a fixed rack. The engagement defines an angular sector bounded by the initial contact area between the teeth of the fixed rack and the arm, the pivot axis of the toothed spur mechanism and the cutting surface of the cutting blade which extends approximately 160 to 170°. The elastic return includes a first end which is fixed to a tab of the blade holder and a second arm which is fixedly attached to the arm permitting an elastic interconnection.

Abstract: An apparatus for cutting individual pieces from an extruded strand fed at a constant velocity (v0) has two cutting blades, which are disposed on disks and rotate in circular paths. In order to align the cutting blades perpendicular to the feed direction of the extruded strand, the blade supports holding the cutting blades are coupled to each other by means of guide rods. The guide rods simultaneously constitute the rotation axes of deflection rolls of a conveyor belt transporting the extruded strand.