Abstract: The invention is directed to a process and system for coating a traveling material web, especially paper or cardboard, with at least one liquid medium, in which the coating medium is conveyed to an applicator device with a spray nozzle fitted in a vacuum chamber to generate a spray mist. The spray mist is applied to the material web according to the invention in that it is applied to the outside of at least one roll and transferred to the material web from the roll.

Abstract: Drying screen for a fibrous pulp web and process for using the same. The drying screen includes a support structure composed of one of a web or mesh, and an elastic coating having a shaped surface provided on a side of the support structure adapted to face the fibrous pulp web. The process of using the drying screen includes pressing the drying screen and the fibrous pulp web together, whereby the press device compresses the elastic layer of the drying screen, adhering the fibrous pulp web to the drying screen via suction after the pressing of the fibrous pulp web and drying screen, and guiding the fibrous pulp web on the drying screen.

Abstract: A support beam for at least one long working unit, notably of a paper machine or coater, includes several bundled, long profile elements forming in their entirety the support beam.

Abstract: Device for treating a fibrous pulp web that includes at least one support face, which is one of moving and stationary. The fibrous pulp web may be guided over the at least one support face. The device also includes at least one sealing device positioned on a side of the fibrous pulp web facing away from the at least one support face to strip at least a majority of a bordering air layer that entrained by the fibrous pulp web. The at least one sealing device may include a sealing disc that is one of substantially straight and at least partially curved, and that is at least one of elastically formed and resiliently mounted.

Abstract: Dryer section of a machine for at least one of producing and processing a web of material. The dryer section includes at least one heatable drying cylinder having a circumference, at least a part the circumference adapted to be surrounded by the material web, at least one support band arranged to surround the at least a part of the circumference, and a sealing band arranged to surround the at least a part of the circumference. An overpressure cap is arranged to receive one of a liquid and gaseous medium and is adapted to apply a pressurized one of the liquid and gaseous medium on the at least one drying cylinder. A temperature of the medium is lower than a temperature on an outside of the part of the circumference. At least one second support band is arranged around the at least one drying cylinder and is positioned between the at least one support band and the sealing band, wherein the at least one second support band has a coarser structure than the at least one support band.

Abstract: The invention relates to a closed-loop control device and a method for the control of the cross-machine and/or machine direction profile of at least one quality feature in the paper manufacturing process with the aid of two sensors. The first sensor picks up a first measured signal of the cross-machine and/or machine direction profile of a first quality feature of the paper web produced. A second sensor picks up a further measured signal. The further sensor is suitable for picking up a quality feature that differs from that picked up by the first sensor, or measures the first quality feature. One or both sensors traverse the web separately. The sensors act through a controller on actuators leading to the feed line or lines for the suspension leading to the flowbox of the machine for controlling thereby the first quality feature of the process.

Abstract: A process for producing a paper web having an essentially flat basis weight cross-machine profile and for simultaneously producing an essentially flat breaking length ratio cross-machine profile. This is achieved in that the lay of the fibers is deliberately influenced with a knowledge of shrinkage behavior. Techniques for respective sectional adjustments in the cross-machine direction are described.

Abstract: A device to clean a transport belt of a machine for manufacturing a material web, in particular paper or cardboard web, is provided which includes at least one nozzle that can impart a medium under pressure and is designed to rotate on a rotational axis. The device is characterized in that the rotational speed of the nozzle for a gentle cleaning of the transport belt lies in the range of from about 2500 rpm to about 4000 rpm, and for an intensive cleaning of the transport belt in the range of from about 1000 rpm to about 2500 rpm.

Abstract: A paper machine for one of making and processing a fiber material web. A plurality of rolls carry the fiber material web. The plurality of rolls include a load roll and another roll defining a nip therebetween. The fiber material web travels through the nip and defines a gore with the load roll on an approach side of the nip. A movable cutoff knife includes a cutting edge positioned in the gore at a slight distance from the nip and adjacent to the fiber material web. At least one impulse exchanger is positioned in association with the cutoff knife. The impulse exchanger is configured to transfer impulse energy to the cutoff knife whereby the cutting edge cuts the fiber material web.

Abstract: An applicator for direct or indirect application of a liquid or pasty coating medium onto a traveling fiber material web, notably of paper or cardboard, includes at least one metering system with a metering slot configured as an open-jet nozzle and formed between an approach-side lip and a departure-side lip. The applicator includes at least one guide surface bordering on the exit of the metering slot and intended for the coating medium issuing as an open jet out of the metering slot. The length of the guide surface is adjustable in at least one direction substantially parallel to the flow direction of the coating medium along the guide surface.

Abstract: The invention is directed to a stationary sliding bar for guiding a paper or cardboard web extends across the entire web width B. Viewed in cross section, the sliding bar has a convex, rounded surface. Due to a relatively high speed of travel of the web, an aerodynamic flotation web forms between the sliding bar and the web.

Abstract: Process and a device for detecting a change in the fiber orientation cross-direction profile of a paper or cardboard web in the manufacturing process on a paper or cardboard machine. It is recognized that a change in the fiber orientation cross-direction profile in the web is inferred or determined by way of a characteristic change in the basis weight cross-direction profile or at least one measurement quantity that correlates to it, and/or by way of a characteristic change in the basis weight in the travel direction of the web or at least one measurement quantity that correlates to it. The device includes an arrangement for detecting a change in the basis weight cross-direction profile and/or a characteristic chronological course of the change in the basis weight, which is characteristic for a change in the fiber orientation.

Abstract: An apparatus and a process for controlling or regulating a web property profile of a paper or cardboard web produced in the manufacturing process of a paper or cardboard machine is disclosed. The apparatus incorporates information regarding the position of one or more devices of a plurality of adjustable devices for sectionally manipulating at least one web property for regulating or controlling the devices to manipulate at least one web property across the width of the machine. The process includes combing the regulating process or a regulator device for adjusting individual actuators that only act on a certain section of conventional systems with the adjustment of an actuator acting across the entire web width for achieving a certain web property, so that the sectionally-operating actuators are not located in an end-position, so that these sectional actuators continue to be able to adjust the web property.

Abstract: A wire section for forming a multi-ply fiber web. The wire section includes a first belt which advances a first fiber ply toward a couch roll defining a combining section. A twin-wire zone of the wire section includes first and second wires between which a second fiber ply is initially formed in a gap former. The second wire separates from the first wire and then the first wire supporting the second fiber ply meets the first belt supporting the first fiber ply at the couch roll of the combining section to form the multi-ply fiber web. The twin-wire part is arranged upstream of the combining section along the running direction of the first belt. The second fiber ply runs on the first wire into the combining section at an angle less than 90.degree. with respect to the belt entering the combining section. The path of the wires from the forming roll to the combining section is disclosed. A suction box or arrangement holds the second fiber ply to the first wire when the first and second wires separate.

Abstract: In a method and apparatus for damping contact oscillations of rotating rolls in a paper machine, but notably in a coater, the rolls being held endways in bearings and at least two rolls forming with each other a nip, the damping is carried out actively, the active stimulation (phase-shifted counteroscillation) acting from outside directly and/or indirectly on at least one bearing point of one of the rolls.

Abstract: The invention concerns a winding device for taking up a paper web immediately after manufacture. The device comprises a carrier drum onto which the paper web is guided from one side (feed side); a winding rod with bearing journals; articulated levers which support the bearing journals in brackets and cause the winding rod with the rolled paper web to pivot around the carrier drum from a feed position into a pay-out position; a longitudinal cutter in the region of the winding-on side and upstream of the carrier drum for cutting the web into strips; a pressure roller for exerting contact pressure on the paper strips; and a support roller on the run-off side of the carrier drum in the pay-out region.

Abstract: Process and device to spool longitudinally cut partial sheets from a material sheet having a sheet width. The process may include forming a spooling roll from each partial sheet such that the formed spooling rolls rest on at least two spooling beds including individually motorized spooling-support rolls. During at least a beginning of the spooling process, the process also may include pressing at least one of the spooling rolls being formed against its respective spooling bed with a loading roll, positioning the at least one spooling roll with the loading roll in a middle portion of sheet width, and motorizing the loading roll independently of the support rolls to initiate an adjustable portion of a turning moment exerted onto the at least one spooling roll.

Abstract: Process for manufacturing a press jacket of flexible material for a press device and a press jacket that is adapted to drain a material web in a press opening in a paper making machine. The process includes arranging at least one reinforcing fiber in a jacket material that forms the press jacket so that the reinforcing fibers are arranged to run substantially in a peripheral direction of the press jacket, forming grooves to run substantially in the peripheral direction in at least one surface of the press jacket, and orienting the arrangment of the at least one reinforcing fiber and the formation of the grooves relative to each other so that the at least one reinforcing fiber and the grooves do not run radially superposed in a same direction.

Abstract: Condensation device and suction element including a condensation device for machines for manufacturing and refining a fibrous material web. The condensation device includes at least one condensation element positioned in a region of at least one of steam formation and accumulation and a condensate receptacle. The suction element includes a hollow body coupled to a vacuum source. The hollow body is adapted to guide a transport belt carrying a moist and heated web. The suction element also includes at least one opening positioned to face the transport belt, at least one condensation element, and at least one condensate receptacle. The at least one condensation element and the at least one condensate receptacle are positioned within the hollow body.

Abstract: A device for doctoring and/or metering a liquid or viscous medium on a moving operating surface includes a doctoring assembly having a doctoring surface extending transversely across the entire operating surface and pressing thereagainst. A doctoring support beam movably supports the doctoring assembly in a direction transverse to the operating surface. A pressure unit produces a force which is exerted on the doctoring assembly in order to produce a contact pressure between the doctoring surface and the operating surface. Undesired temperature-based movements of the doctoring support beam relative to the operating surface can be compensated for by a compensation device located in the pressure flow path between the doctoring support beam and the doctoring assembly. This ensures that the contact pressure between the doctoring surface and the operating surface is substantially unaffected by such movements or deformations of the doctoring support beam.