Abstract: A process for ultrasound treatment of a strip of material and a device for implementing such a process. A strip of material passes through a treatment gap, which is formed by a roller device that includes a rotating roller body and a sonotrode that is directed approximately radially against the working surface of the roller body. In order to at least extensively prevent any concentricity defect of the roller body that might result from bending of the roller body, the roller body is cooled directly below the working surface of the roller body. For this purpose, the roller body has a number of lengthwise bores distributed uniformly over the circumference, preferably on an arc, through which a cooling medium flows in essentially uniform manner.

Abstract: A device for processing a continuously running material web includes a machine frame with an ultrasonic generator unit with a sonotrode. A counter tool lies opposite the sonotrode, affixed on the machine frame. The material web is passed through the gap between the sonotrode and the counter tool; as a drive activated by a fluid pressure medium, to press the sonotrode that is movably mounted on the machine frame against the counter tool. A damper for damping vibrations of the sonotrode in the contact pressure direction is provided. This damper is connected at one end with the sonotrode, and at its other end to the machine frame so that vibrations excited by the web or by the counter tool are damped to such an extent that they are no longer noticeable in the processing effect.

Abstract: A vertical calender arrangement comprises a controllable-deflection top roll, a controllable-deflection bottom roll and intermediate rolls arranged between top and bottom rolls. The top roll and the bottom roll are each provided with a power drive.

Abstract: Apparatus for forming an extended nip between a heated mating roll and a shoe roll for treating a product web, especially a paper web, the shoe roll having a stationary support and a flexible belt which can rotate about the support and, in the area of the extended nip, is supported on a shoe which is guided on the support, forms a press section and has an effective shoe width, and the belt having end sections which are fixed to end walls that are rotatably mounted on the support, in each case at the ends and axially adjacent to but at a distance from a mating face located opposite the effective shoe width of the shoe, the mating roll having a radially protruding support ring, which forms an opposing bearing for the direct support of an outer belt section on the mating roll and consists of a thermally insulating material.

Abstract: A roller device is presented that includes a roller with a cylindrical roller body that forms a working roller circumference. The roller, which has a equalization system, is mounted at its ends so as to rotate. The equalization system has tempering devices that are assigned to the roller body. The devices extend over the length of the roller body and act on the roller, which are arranged in a recess of the roller body and by means of which the roller body can be preferentially tempered in a narrow circumference angle region adjacent to a plane that passes through the axis of the roller body.

Abstract: Extended-nip roll press for dewatering a material web comprises a rotating mating roll and an extended-nip press roll. The extended-nip press roll has a stationary support and a flexible roll cover which rotates about the support. A press shoe is arranged on the support, and the roll cover has end sections which are clamped firmly on rotatable end walls on the support. End wall clamping rings respond to a first actuating device and clamp a resilient spreader ring radially against an outer ring that can be connected firmly to the end walls. A sealing ring is arranged on each end wall adjacent the clamping ring and can be deformed radially against the outer ring by means of a second actuating device.

Abstract: A roller (100) for the pressure treatment of fabric webs includes a hollow cylinder (1), rotatable about its axis A and bearing the working roller periphery (4). A non-rotatable crosshead (5) extends through the hollow cylinder (1) along its length, leaving all around a distance with respect to the inner circumference (2) of the hollow cylinder (1). The cylinder (1) is supported at the ends on external support pieces. A support device (10) is arranged on the crosshead (5) and acts radially in the active plane (W) of the roller (100) against the inner circumference (2) of the hollow cylinder (1). The support device transmits from the crosshead (5) to the hollow cylinder (1) the forces that are necessary for creating the line forces exerted by the roller (100). Provided laterally on the crosshead (5) is a hydrostatic support element (30) acting radially perpendicular to the active plane (W) of the roller (100) against the inner circumference (2) of the hollow cylinder (1).

Abstract: Apparatus for forming an extended nip between a heated mating roll and a shoe roll for treating a product web, especially a paper web, the shoe roll having a stationary support and a flexible belt which can rotate about the support and, in the area of the extended nip, is supported on a shoe which is guided on the support, forms a press section and has an effective shoe width, and the belt having end sections which are fixed to end walls that are rotatably mounted on the support, in each case at the ends and axially adjacent to but at a distance from a mating face located opposite the effective shoe width of the shoe, the mating roll having a radially protruding support ring, which forms an opposing bearing for the direct support of an outer belt section on the mating roll and consists of a thermally insulating material.

Abstract: The invention relates to an extended-nip roll press for dewatering a fibrous web in a press nip which, on one side, is formed by a rotating mating roll and, on the other side, is formed by an extended-nip press roll, whose roll centers lie in a stack plane, and the extended-nip press roll has a stationary support and a flexible roll cover that can rotate about the support, the cover in the region of the press nip being supported on the support on a sliding surface which is formed on an upper part, defining an entry and exit, of a press shoe that can be displaced with respect to the support in a loading direction, it being possible for the press shoe to be displaced radially along a loading plane which intersects the stack plane at the center of the mating roll and at an acute angle to the exit direction.

Abstract: A device for processing a continuously running strip of material includes an ultrasonic generator unit with a sonotrode that is fixed opposite a counter roller. The material strip is processed in the gap. To adjust the gap height, the force in the gap is measured using a force measuring member, and used for regulation.

Abstract: A calender arrangement includes end rolls that are in the form of deflection controlled rolls having an internal stroke. One of the end rolls comprises at least one stop element that is in the form of a hydraulic positioned hydrostatic element which, together with the internal wall of the roll sleeve, defines a gap. When a constant throughput of hydraulic medium is fed in, an equilibrium of forces is produced, at which equilibrium the roll sleeve is positioned. The pressure built up in the process is a measure of the positioning forces. Small departures from the target position are permitted without control intervention.

Abstract: In a spiral steamer, the deflecting rollers are arranged in the lower areas of the individual windings of the spiral in such a way that the fabric web approximately follows a chain line.

Abstract: A calender for treating a paper web, having at least one roll stack capable of being loaded from the end and in each case comprising a top and bottom end roll and a plurality of intermediate rolls, which are jointly arranged in a roll stack plane, and the rolls including hard and soft rolls in order to form operating nips in the form of soft nips, wherein each soft roll which forms an intermediate roll has a greater diameter than a soft roll which forms an end roll.

Abstract: A calender arrangement includes end rolls that are in the form of deflection controlled rolls having an internal stroke. One of the end rolls comprises at least one stop element that is in the form of a hydraulic positioned hydrostatic element which, together with the internal wall of the roll sleeve, defines a gap. When a constant throughput of hydraulic medium is fed in, an equilibrium of forces is produced, at which equilibrium the roll sleeve is positioned. The pressure built up in the process is a measure of the positioning forces. Small departures from the target position are permitted without control intervention.

Abstract: A calender for treatment of a web of a nonwoven textile V made of thermoplastic fibers. The calendar includes a heated embossing roller made of steel and a counter-roller that runs at the same circumference velocity. The local plastification in the nonwoven textile V that is produced at the locations of the raised embossing areas results in a board-like feel of the nonwoven textile V. To reduce this hardness, the web of the nonwoven textile V is broken, after having cooled at least partially.

Abstract: A device for treating a continuously advancing material web with ultrasound includes an ultrasound generator and a sonotrode, rigidly connected with the former in a manner so as to transmit ultrasound. The sonotrode has a face which lies opposite a counter-tool. The material web is passed through the gap. The module composed of the ultrasound generator and the sonotrode is connected with the machine frame via a piezoelectric actuator, by means of which small displacements of the face of the sonotrode relative to the circumference surface of the counter-roller can be balanced out.

Abstract: The device (100) is used to apply a treatment medium to a moving strip of material (W) e.g. a dyebath to a strip of carpet. The device (100) is composed of a rigid support (3) that is securely arranged in a machine frame (1) and extends in a perpendicular position with respect to the strip of material, an inflatable pressure cushion (12) extending along the support (3), a less rigid supporting beam (13) arranged on the pressure cushion (12) with ends that are mounted in an articulating manner on the machine frame (1) around axes (22, 22) that are parallel to the strip of material, in addition to an application beam (25) placed on the supporting beam (13) in perpendicular position with respect to the strip of material (W) and running parallel to the surfaces thereof, whereby the application beam rests upon the strip of material (W) with the aid of a sliding surface. An application slit (30) that opens out onto the sliding surface (35) in placed in the vicinity thereof.

Abstract: A device for applying a patterning liquid to a web, particularly to a carpet web, has an exit slit with a plurality of valves distributed over the width of the web and arranged ahead of it, which can all be activated independent of one another, and which each supply the patterning liquid to a specific width section of the application slit. The valves are located as close as possible to the exit location so that the segment from the closing location of the valves to the exit location is as short as possible.

Abstract: A tubular element (100) which is inserted into a liquid-conducting conduit (10) includes an annular chamber (25) that is delimited radially towards the inside by a tubing section (30) made of a material with an elastically flexible surface. The tubular element (100) serves as a flexible damping conduit section, or, if the annular chamber (25) is connected with a partial vacuum chamber at a connector (21), and the tubing section (30) is inflated into the annular chamber (25), as a means for temporarily holding an amount of liquid, for example in order to withdraw a dye bath from the exit slit of an application device for dyeing textile webs.

Abstract: The treatment device includes a container for a treatment fluid, in which a drum around which the web loops rotates eccentrically. The drum is made up of axis-parallel, hollow, sealed rods and possesses a drum shaft structured as a hollow shaft, which together produce a buoyancy which makes up a significant part of the weight of the drum and the drum shaft. The drum is suspended at one end via stretchably elastic drive belts, and at the other end on tension springs, which catch the remaining weight. The drum shaft is eccentrically mounted on an eccentric shaft. The eccentric shaft is provided with equalization weights. All of the measures act together to allow low-vibration operation, towards the outside, of the treatment device.