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: A valve arrangement for fluid media, with a plurality of valves (50), which are arranged in a common housing (20). Each valve has at least two feeds (57, 58) and an outlet channel (54), with all the outlet channels (54) emptying into a common outlet zone (11). An example of use is a patterning device for webs (10) of carpeting, where the common valve housing (20) is an application bar, and the outlet zone (11) is a narrow application slit, from which the patterning agent (dye bath) which forms the fluid medium is transferred directly to the web (10) from the application slit.

Abstract: A method for manufacturing a laminate material for use as a surface covering or the like, by reusing plastic trimmings, includes the step of forming a layer from the plastic trimmings, and preferably subjecting both sides to a surface compression while simultaneously providing heat transfer, thus allowing the zones near the surface to be melted on.

Abstract: A method for manufacturing a laminate material for use as a surface covering or the like, by reusing plastic trimmings, includes the step of forming a layer from the plastic trimmings, and preferably subjecting both sides to a surface compression while simultaneously providing heat transfer, thus allowing the zones near the surface to be melted on.

Abstract: Described is a drain board (100) for a device for applying a liquid film to a web (8) of textile material. The drain board (100) comprises a support (1), on which a strip (10), which constitutes the draining surface (A) and is made of planar material is held flat, for example by magnets (3), by means of a vacuum or by a contact adhesive. The liquid is poured out at point (4) on to the draining surface (A); it flows down and falls off the lower edge (6) of the strip (10) in a falling film (7) or veil on to the fabric web (8). As a result of the magnetic retention, the strip cannot be replaced (FIG. 1).

Abstract: In a double belt press, in which the steel belts are supported on the back by rollers, inherent compressive stress occurs on the side of the steel belts of a double belt press that are supported on the back by rollers, resulting in an undesirable bowl-shaped deformation of the steel belts. In order to avoid this deformation, at least the side of the steel belts which faces away from the rollers is subjected to treatment by shot blasting before being installed in the double belt press.

Abstract: In a double-band or similar press the pressure on the mat that is being fed in is increased so rapidly as soon as this mat comes into contact with the heat-transfer surfaces that the outer areas of the mat harden under the great pressure, whereas the heat has still not penetrated into the interior of the mat. This results in an enhancement of the surface quality of the panel. As an example, to this end, a roller gap can be provided before the feed gap.

Abstract: In a double-belt press for the manufacture of wood chip boards and the like having a width less than the nominal working width of the double-belt press, the forming belts are held in contact with the support structure so as to ensure heat transfer in the edge portion of the pressing zone extending beyond the edge of the filling which produces the boards to the region near the edge of the pressing zone. In this edge portion, an edge filling composed of unbonded particles is compressed on a compressible rotating belt.

Abstract: In a hydraulically supported roll including a rotatable hollow cylinder and a stationary crosshead, transverse end seals are provided to seal a longitudinal chamber formed in the clearance space between the crosshead and the hollow cylinder. Each transverse end seal includes a roller bearing having a first bearing ring rotatable with the hollow cylinder and a second bearing ring mounted on the crosshead. The first bearing ring includes a first surface, which along with a second surface formed on a ring secured to the crosshead, defines a clearance gap. The gap has a width of less than 0.1 mm. The first bearing ring seals the longitudinal chamber at the inner circumference of the hollow cylinder and the first and second gap defining surfaces are located on parts that are axially restrained with respect to the crosshead.

Abstract: A roll for a foil-drawing calender or the like which is substantially solid, has a central longitudinal bore hole and has journals supported in outer bearings in a roll stand. In the longitudinal bore hole is a stationary core which is supported, at axial locations corresponding to the ends of the working width, via inner bearings in the longitudinal bore hole and is braced via a hydraulic force-exerting arrangement acting in the working plane of the roll in a direction toward the roll gap and against the inside circumference of the longitudinal bore hole. In the vicinity of the inner bearings and in the region of the outer bearings, load-relieving hydraulic force-exerting arrangements are provided which brace the core against the inside circumference of the longitudinal bore hole and act in the action plane of the roll in the direction opposed to that of the other hydraulic force-exerting arrangement.

Abstract: A roll has a rotating roll shell and a stationary beam extending longitudinally through the shell and leaving an annular space between it and the inner periphery of the shell. A longitudinal chamber having a supply pipe for pressure fluid is formed in the space between the shell and beam and is divided by a sealing system comprising transverse end seals and strip-like longitudinal seals extending on both sides of the plane of action of the roll. Each longitudinal seal is formed by a number of sealing strips staggered in the peripheral direction. A line opens between each pair of sealing strips and contains a one-way valve and leads into an outlet. The one-way valves are set to open at pressures which progressively decrease towards the longitudinal chamber. The transverse longitudinal seals can also be made up of a number of sealing strips staggered in the radial direction.

Abstract: A supercalender at the output of a paper machine includes two pairs of zone-wise deflection-controlled rollers. Each pair has a hard surface roller and a soft roller with an elastic outer layer or covering having a minimum hardness of 85.degree. Shore D. The hard rollers are disposed on one side and the soft rollers on the other side of the travel path of the paper.

Abstract: A method and apparatus for the continuous manufacture of extruded material such as chip board, plastic board and similar materials, in which the material to be pressed is conducted, in a pressing section, between endless forming bands which co-circulate the feeding direction of the extrusion, extend over the width of the extrusion and through which pressure and optionally heat are introduced into the material. To aid the feed and reduce stresses, at a point following the pressing section, a pulling force in the feeding direction is exerted on the extrusion of the finished material.

Abstract: In a method of continuously manufacturing sheets of material such as wood chip board in which a bed of material is fed from one conveyor belt to another conveyor bed which forms part of a continuous press, in order to avoid problems caused by the discontinuity at the gaps between the two belts, a web of paper is fed onto the conveyor belt and caused to travel with the conveyor belts, the bed of material then disposed on the paper, permitting the paper to bridge the gap between the conveyor belts without disturbance of the bed of material. The paper, which is then pressed and intimately bonded to the bed of material when making the sheet of material, is subsequently ground off.

Abstract: A control system for a continuously operating press, for the manufacture of chipboard, molded laminated plastic and the like, having two endless revolving forming belts which advance opposite each other in a pressing section, between which a starting material is compressed in the pressing section and each of which belts is provided with a separate drive, one of the drives being a lead drive equipped with a speed control for holding the belt velocity constant, in which there is provided a torque controller for comparing the torque of the lead drive with the torque of the other drive and providing an output which regulates the torque of the other drive such that the torques of the two drives always retain an adjustable ratio between each other over the entire torque range; and a further speed control for the belt drive which is not operating as the lead drive which is set higher than the speed control of the lead drive and which is adapted to be adjusted along with the speed control of the lead drive, with the

Abstract: A controlled deflection roll of the type having a rotative shell through which a non-rotative shaft extends axially so as to form a radial space between the shaft and the shell's inside and self-aligning end bearings journaling the shell to the shaft, and the shell's deflection controlled by internal pressure between the bearings in that space, has an arrangement for applying radial forces between the shell and the shaft on the axial outsides of the bearings so that the shell's deflection throughout its length can be more precisely controlled.

Abstract: A controllable variable deflection roll of the type applying the deflection controlling force between the fixed shaft and the rotative shell via piston and cylinder arrangements, has the arrangements positioned offset circumferentially around the shaft with respect to the direction in which the deflection controlling force is applied.

Abstract: The line pressure distribution of a roller comprising a revolving hollow cylinder forming the working roller circumference, and a stationary cross head which extends lengthwise through the hollow cylinder and leaves space all around from the inside circumference of the hollow cylinder, the roller having longitudinal chambers which are divided off by longitudinal seals which are arranged between the cross head and the inside circumference of the hollow cylinder on both sides of the action plane of the roller and past which the inside circumference of the hollow cylinder slides, at least the chamber situated on the side of the roll gap adapted to be filled with fluid pressure medium, is controlled by establishing zones in at least one of the longitudinal chambers and controllably reducing the pressure in the zones as compared to the pressure prevailing in the longitudinal chamber.