Abstract: The invention relates to a doctor device, associated with a contact surface, in particular a rotating roller. The doctor device has a doctor blade, provided for placement against the roller, for bringing the doctor blade into contact with the roller by way of a pressurized fluid. At least one sensor is provided on the doctor blade, for generating a measured value for the contact pressure of the doctor when it is placed against the roller. There is a control unit which controls the speed at which the doctor can be placed against the contact surface, in particular the roller.

Abstract: A shuttle valve includes: a first valve body; a second valve body, a first control-pressure-charged surface and a second control-pressure-charged surface of the first valve body being larger than a third control-pressure-charged surface and a fourth control-pressure-charged surface of the second valve body, a first control pressure from a first inlet pressure port being applied to a first valve body first side, the first control pressure from a second inlet pressure port being applied to a first valve body second side, a second control pressure from a third inlet pressure port being applied to a second valve body first side, the second control pressure from a fourth inlet pressure port being applied to a second valve body second side, a first control pressure acting on a first control-pressure-charged surface and a second control-pressure-charged surface, and the second control pressure acting on a third control-pressure-charged surface and a fourth control-pressure-charged surface.

Abstract: A plate segment for refining an aqueously suspended fibrous material in a refining gap delimited by two treatment surfaces rotating relative to each other and formed by a plurality of the plate segment, includes: a basic body including: a plurality of elongate treatment elements which face the refining gap and run radially at least with one directional component; a plurality of grooves running between the plurality of elongate treatment elements, the plurality of grooves including a groove base; and a plurality of channels running at least with one directional component radially and at least approximately parallel to the refining gap, being at different distances from the refining gap and arranged in the basic body, and at least partially overlapping one of one another and with the groove base in a direction of rotation.

Abstract: A blade for creping a paper web from a dryer cylinder surface. The blade has a leading side and a front bevel surface to be impacted by the paper web. The leading side and the front bevel surface meet at a contact edge to contact the dryer cylinder. The front bevel surface has a 3D areal roughness, measured according to ISO 25178, of Sa>0.7 ?m and/or Sz>18 ?m and/or Sq>1.0 ?m.

Abstract: A robot for locomotion in a pipe includes: star carriers including a supporting structure and clamping elements with a fixed part, a moving part, and a motor, the moving part being retracted and extended, the fixed part being connected with the supporting structure, the supporting structure including a frame with an outer contour, the fixed part being attached to the outer contour such that the star carriers can be clamped onto the interior space of the pipe when the moving part is extended; feed elements, the feed elements including a linear drive with a motor for changing a length, the feed elements extending between two fixed parts of adjacent star carriers; and a control unit for controlling the clamping elements and the feed elements.

Abstract: The invention relates to a hold-down device for a joining drive and joining drive with a hold-down device. The hold-down device includes a hold-down cylinder, wherein the hold-down cylinder provides a hold-down force by means of a pressurized chamber. The pressure chamber consists of the hold-down cylinder and a punch of the joining drive. The pressurization required for the provision of the hold-down force is provided by a hydraulic circuit of the joining drive. In the joining mode, the pressure chamber of the hold-down device is connected to a pressure accumulator of the hold-down device, so that a change in volume in the pressure chamber of the hold-down device has no noticeable influence on the pressure in the pressure chamber.

Abstract: A covering for a machine for producing or processing a fibrous web, in particular a paper or tissue web. The covering includes a basic covering which has a web-contacting upper side and an underside, and a plurality of polymer elements. The polymer elements are welded onto the upper side and at least some of the polymer elements are in the form of yarn-shaped and/or tape-shaped polymer elements.

Abstract: An oil supply system for an automatic transmission or for an automated manual transmission in a drive train. The oil supply system includes an oil sump and a heat exchanger, wherein the oil supply is provided for at least the following operating states of the automatic transmission: a converter mode; a drive mode in one of the mechanical gears; and a retarder mode. To optimize cooling of the oil volume flows in the different operating states two heat exchangers are provided, through which an oil volume flow can be conducted depending on the operating state of the transmission.

Abstract: A seamed felt for use in a machine for producing a tissue web has a single-layer or multilayer base structure and at least one layer of non-woven fibers. The base structure has a textile structure with MD threads which form seam loops at the two front edges of the base structure. The fabric can be made endless by connecting its front edges by way of a seam. The seam can be formed by interlocking the seam loops of the two front edges and introducing a push-in element. The MD threads wholly or predominantly have a diameter between 0.25 mm and 0.45 mm, in particular between 0.3 mm and 0.35 mm, and the thread density of the MD threads is more than 37%, in particular between 37% and 45%. There is also described a corresponding machine and a method for producing a tissue web.

Abstract: A connecting unit for connecting a drive device to a rod includes: a receiving opening for axially receiving a connecting element arranged on the rod to transmit a torque; an interlocking element including a free end and further including or being configured as a spring element, which is a flexible spring; and a recess located radially adjacent to the receiving opening and by way of which the interlocking element engages in the receiving opening, with the result that the connecting element is axially securable thereby, the interlocking element at a first position being firmly connected with a portion of the connecting unit and at the free end is configured for moving relative to a portion of the connecting unit so as to move the interlocking element out of the receiving opening, with the result that a securement of the connecting element is releasable.

Abstract: A device for processing high-consistency fibrous material has a housing. First and second treatment tools in the housing are fastened to a base plate, have a rotationally symmetrical form, are arranged coaxially to each other, rotate relative to one another about a common axis and delimit a treatment gap through which the fibrous material radially flows. The gap width of the gap is varied by axially shifting at least one base plate of a treatment tool. In order to determine the minimum distance between the base plates, the oscillations are detected on the device and the distance between the base plates rotating relative to one another is reduced until the frequency and/or the amplitude and/or the change in frequency and/or the change in amplitude of the oscillations exceeds a limit value. The distance when the limit value is exceeded is determined as the minimum distance.

Abstract: A method for producing a web of fibrous material includes the steps of: (a) low-water processing of cellulose-containing fibers into individual fibers and/or fiber bundles; (b) forming of the individual fibers and/or the fiber bundles in an air stream into a planar laid fibrous structure using a dry forming method; (c) moistening the individual fibers and/or the fiber bundles by way of a fluid; (d) solidifying the planar laid fibrous structure by applying pressure in a press nip; and (e) heating the individual fibers and/or the fiber bundles upstream from the step of solidifying (d) so as to increase a temperature of the individual fibers and/or the fiber bundles in the step of solidifying (d).

Abstract: A hydraulic machine of the Francis-type includes: an impeller with blades; a guide vane assembly with a ring of guide vanes, a vane-free space extending between the impeller and the guide vane assembly; and at least three resonators for suppressing pressure fluctuations, the resonators respectively including a chamber and a tube connector, the tube connector being connected to the chamber, the tube connector including an end that faces away from the chamber and that opens into the vane-free space, the resonators being configured for suppressing the pressure fluctuations occurring during the operation of the hydraulic machine, the resonators being arranged at a uniform distance from each other in a circumferential direction around the impeller, and the resonators being adjusted to a resonant frequency which is one and the same relative to one another.

Abstract: A pulper for circulating a fibrous stock suspension. The pulper includes at least one screen, having a screen surface which is provided with screen openings, and over which a rotor passes. The rotor is formed by a rotor head, to which a plurality of rotor blades are attached on the outer circumference. The rotor circle of the screen, which is passed over by the rotor wings, includes a plurality of bar-shaped elevations. In the process, pulping is to be improved, while wear is to be minimized, in that the angle of intersection between the working edge of the rotor blades pointing in the direction of rotation and the shear edge of the elevations pointing counter to the direction of rotation does not decrease radially outwardly.

Abstract: A roll arrangement for producing a web of fibrous material which is compressed includes: a compression press, which includes at least one compression roll and a mating roll and is configured for compressing the web in a transverse direction which is transverse to a conveying direction of the web; and a tensioning belt, which is elastic and is configured for supporting the web and for being guided through a first nip between the at least one compression roll and the mating roll and over the at least one compression roll.

Abstract: A method for producing an air-laid product or a non-woven product from a starting material includes: comminuting starting material into a comminuted material in at least one comminution line by at least one comminuting device; feeding the comminuted material into at least one material buffer; removing the comminuted material from the at least one material buffer; metering the comminuted material by at least one metering device; supplying the comminuted material to at least one processing line with at least one defibration system in which the comminuted material is defiberized into a defiberized material; and feeding the defiberized material into a production machine and processing the defiberized material into an air-laid product or a non-woven fabric. The at least one metering device is controlled in such a way that a continuous mass flow of defiberized material is supplied to the production machine.

Abstract: A method for the state-based maintenance of a coupling arrangement of a track-bound vehicle includes the steps of: providing coupling arrangement data and surroundings data; transmitting the coupling arrangement data and/or the surroundings data to a data processing system and determining a target specification for a maintenance requirement of the coupling arrangement as a function of the coupling arrangement data and the surroundings data; recording images of the coupling arrangement for optical reproduction of an actual state and transmission to the data processing system; and evaluating an optical actual state of the coupling arrangement from the images taking account of the target specification, which is formed from the operating data and the state data, for the maintenance requirement at an evaluation time and taking the evaluating as a basis for correcting the target specification.

Abstract: A method for producing a web of fibrous material, the method including the steps of: forming the web by a dry-laying process; pressing and consolidating the web in a press nip while the web lies between a first support element and a second support element, a contact surface of the first support element and a contact surface of the second support element respectively facing the web; forming at least one low-pressure zone and at least one high-pressure zone in the web by way of the contact surface of the first support element; and exerting upon the web in the at least one high-pressure zone a pressure of more than 10 MPa.

Abstract: A method and an apparatus for adjusting a suction roll. The method includes: recording images and/or videos of the exterior of the roll and transmitting the recording to a computing unit; determining the actual values of the position of the sealing strips and/or edge deckles and/or other, non-visible components by the computing unit through image analysis of the image and/or video recording of the exterior of the roll and/or by acquiring values from an embedded sensor system; and displaying the determined actual values by superimposing the position of the non-visible components on a display with the image and/or video recording.

Abstract: A hydrodynamic sliding bearing, including: a housing shell including an inner surface which forms a bearing surface configured for a rotating shaft having a radius, the housing shell including a center point, the bearing surface including at least two surface sections which are arranged one behind the other in a circumferential direction of the bearing shell, the at least two surface sections including at least one first surface section and at least one second surface section, the at least one second surface section forming a load segment, the at least one first surface section forming a non-load segment, the at least two surface sections each configured for being inscribed thereinto in an axial section with a respective circle, the respective circle of each of the at least two surface sections each having a radius that is larger than the radius of the rotating shaft and each having a center point each of which exhibits a respective eccentricity relative to the center point of the housing shell, the eccentric