Abstract: An apparatus for slitting a web moving along a path in a transport direction has a support transversely shiftable relative to the web adjacent the path, a drive shaft extending transversely of the direction adjacent the path and substantially nonmovable transversely of the path, and a drive gear on the support rotationally coupled gear to the drive shaft and shiftable along the shaft. A mount shiftable toward and away from the shaft on the support carries at least one driven gear and a driven blade fixed to and rotatable with the driven gear. Another blade is juxtaposed with the driven blade and flanks the path therewith. An actuator can shift the mount between a cutting position with the blades closely juxtaposed and the driven gear meshing with the drive gear and a retracted position with the blades separated and the driven gear out of mesh with the drive gear.

Abstract: The invention relates to a longitudinal cutting device for cutting out strips (15) in a moving web of material. Said device comprises at least one carriage (5) which is mounted in such a manner that it can be displaced on a guide element (7) which extends transversally in relation to the direction of movement of the web of material. Said device also comprises a support (3, 20) with a freely rotatably mounted upper blade (2). Said device further comprises a drive shaft (8, 29, 39, 46) which extends over the entire width of the machine and which enables the upper blade (2), especially a circular blade, to be driven by means of a gear mechanism. Said upper blade (2) can be operated in a displaceable manner until a toothed wheel (14) which is connected to the circular blade and to the toothed wheel (13, 21) which drives the circular blade (2), is decoupled.

Abstract: In winding machines, known roll systems are used that contain a number of freely rotatable roll segments (3), which are situated next to one another face to face and mounted in a manner that enables them to move perpendicular to their rotation axis (4). According to the invention, the roll segments (3) are mounted so that only one respective face is mounted on a bearing journal (5), which is fastened in an interspaced manner to a bearing plate (6) that can move perpendicular to the rotation axis (4). An annular slot (15) is fashioned in at least one inner side of each bearing plate (6), and the end of a roll segment (3) can rotate without touching inside this annular slot.

Abstract: Known winding machines for winding up continuous strips of material, especially plastic strips, use longitudinal cutting devices comprising a series of upper blades (1) embodied as disk-shaped circular blades, and a series of lower blades (2) embodied as circular blades. According to the invention one lower blade (2) each is arranged on both sides of an upper blade (1), the lower blades (2) are mounted in a freely rotating manner on a carrying axle (3) and the planes of rotation (4) of the two lower blades (2) assigned to an upper blade (1) are symmetrically inclined in relation to each other and form an acute angle with said plane of rotation (5) of the upper blade (1) in such a way that the cutting edges of the two lower blades (2) move towards and away from each other during one revolution.

Abstract: The invention relates to a method and device for reducing the volume or pressure of a fluid which is driven through an opening (3, 17) by moving surfaces. According to said method, the opening (3, 17) is divided in at least two flow channels (5, 6, 14) by means of one or more flexible separation members (4). Each separation member (4) is attached at its rear end relatively to the direction of displacement of said surfaces, and its front finishing end extends inside said opening (3, 17). The inventive method can be advantageously implemented during production and further transformation of strip-shaped materials (paper, cardboard strips, plastic material sheets) for bringing the strip which moves on an element (cylinder, roll, rigid guiding element, winding reel) into close contact with said element.

Abstract: Contact roller systems comprising several hollow cylindrical roller segments (2) that are mounted next to each other on the front face side in such a way that they can rotate freely on a continuous shaft (1) are already known per se in winding machines. According to the invention, the internal bearing parts of a roller segment (2) terminate on at least one axial end at a distance (4) from the front face of the roller segment (2). A free space is thus formed, whereby parts of a support bearing (5) which supports the shaft (1) and/or parts of an adjusting lever (6) can be arranged therein. The support bearing (5) and/or the adjusting lever (6) have an annular groove (7) in which the end of the roller segment (2) can rotate in a contactless manner. It is possible to keep the gap between two adjacent roller segments (2) as small as possible in order to avoid markings, while still allowing the support bearing (5) and/or adjusting lever (6) to act.

Abstract: In winding machine for winding running webs of material, for instance paper webs or plastic foil, contact roller systems are known which have several roller segments arranged next to each other with their frontal sides, and which are supported to rotate freely and be perpendicularly movable with respect to their rotation axis. Each roller segment is held by a frame, which is supported to move perpendicularly to the rotation axis. Each frame of a roller segment comprises two lateral support plates extending parallelly to their frontal sides, whereby the neighboring support plates of two roller segments are arranged one above the other perpendicularly to the motion direction. The support plates can have deep annular grooves wherein the frontal faces of the roller segments can rotate free of touch.

Abstract: An apparatus for stretch leveling thin metal strips, in particular aluminum strips between 0.1 and 0.5 mm thick, has a group of braking rollers that are interconnected via differential transmissions and controlled jointly with respect to speed to form a first leveling path with a downstream central speed-controlled leveling roller and that downstream a group of pulling rollers connected together by means of differential transmissions and controlled jointly with respect to speed form a second leveling path with the central leveling roller.

Abstract: An apparatus for winding a web on a sleeve has a pair of winding shafts adapted to hold respective such sleeves and each pivotal into a winding position coaxial with a winding axis and into a takeoff position spaced therefrom. A contact roller around which the web passes presses the web radially toward the winding axis so that when a sleeve is in the winding position the contact roller presses the web against it. A cutter can sever the web when same extends from the contact roller to the takeoff position between the contact roller and the takeoff position and thereby produces a leading web end extending from between the contact roller and a sleeve in the winding position.

Abstract: A contact roller is shiftable in two mutually perpendicular directions so that it can press the cut end of a web, e.g. of thin scratch-sensitive film, against an empty roll in a waiting position while maintaining contact with the roll being completely wound in the winding position. The empty sleeve and the wound roll are mounted upon arms of a turret or the like so as to be swingable about a command axis but independently of one another.

Abstract: A winding machine for paper and foil webs, especially narrow webs of very thin foils, has on each side of the machine a succession of stations defined between pairs of support arms in which holders for the respective winding tube can be received. The arms have elongated motors attached to them, the motors extending through openings in several arms and being axially offset and end-reversed with respect to one another and so disposed with respect to the motors of adjacent arms and next but one winding stations that the motors do not interfere with the belt drives coupling the motors to the holder.

Abstract: A compensator for small deflections of a pendulum roller on a web process machine includes a tension device which is pivotally connected to a pendulum arm and is, in turn, pivotally connected to a holder above the pendulum axis.

Abstract: An unwinding device for a machine for the processing of strip material has a pair of arms which receive the roll between them and are movable toward and away from one another by a spindle having threaded portions of opposite hand engaging the respective arms. A bearing sleeve axially entraining the spindle is engaged between the fork shanks which are connected to a piston rod of a double acting cylinder mounted on the traverse along which the arms are guided to adjust the arms in axial direction transverse to the web feed direction.

Abstract: A torsion stiff frame formed by a swingable plate, a bracing bar and a hollow member or tube is mounted upon a torsion stiff frame formed by support plates and a round bar defining the pivot axis. The roll carrying arms are engaged with the central tube and braced upon the bracing bar but are shiftable by a threaded spindle driven by a motor externally of a support plate via a shaft passing through an arcuate slot thereon. A shaft also driven by a motor mounted on the support plate coaxial with the round traverse is used to drive the rolls.

Abstract: A roll-winding machine for winding rolls of a web material, especially for use in a clean room, has a traverse extending the full operating width and provided with a plurality of slides whose arms hold the rolls to be wound. The slides have legs which pass through slits formed in an enclosure constituted by cover plates and/or the traverse walls so that the enclosure completely surrounds the guide surfaces of the slide feet on the rails of the traverse, leaving free only the minimal slits through which the legs pass. As a consequence, the release of contaminants into the surrounding space is greatly reduced.

Abstract: A simultaneous biaxial stretching machine for thermoplastic film webs, said machine having two transport rails arranged on both borders of the film web, on which transport rails gripping devices for the gripping of the borders of the film web are guided, each coupled with one another by flexible connecting elements and having a roller moving mechanism, the gripping devices being guided at constant small distance in a preheating zone, divergently and at an increasing mutual distance within a stretching zone, and in parallel or convergently within a fixing zone. Each gripping device has an extension arm, oriented rectangularly to the moving direction of the gripping device, the extension arm having a slide, guided therein. Each gripping device, in addition, has a deflection roller for the deflection of the connecting element, coming from the adjacent gripping device.

Abstract: A winding machine for longitudinal slit strips, with slides which carry pendulum arms with receivers for winding cores and are movable, on a guide, transversely to the longitudinal slit direction, a driving drum being positioned beneath the guide, which driving shaft is frictionally connectable, with a driving wheel of each slide, and each driving wheel driving the winding core receiver of the specific pendulum arm. The technical problem is in the facility and shortening of the re-tooling to other slitting widths as well as in the adjustment of the winding tension. The driving shaft comprises a continuous peripheral surface. Each driving wheel is provided as a friction wheel which is brought into frictional engagement with the driving shaft. Each driving wheel is coupled via a clutch, preferably an eddy-current clutch with adjustable clutch disk, to a driving shaft.

Abstract: A roller cutting and winding-up machine has, subsequent to a cutting station, winding-on stations on both sides of a deflecting and supporting roll. Each winding-on station comprises two brackets, on each of which is mounted one of two swivel arms which, independently of the swivel arms of the other winding-on stations, are adapted to be swivelled between a coil winding-on position and a coil depositing position. The arms are driven by means of a power-medium operated tooth rack via a toothed wheel so that by a single drive means there is provided not only contact pressure for the winding-on operation but a large swivelling range of the arms. The brackets of the winding-on stations are individually movable transversely of the working area range of the machine.