Abstract: The invention relates to an installation for continuous treatment of a textile web of fabric (1) which has free longitudinal edges (2) and is stretched in the longitudinal direction (3), the longitudinal edges (2) of the web of fabric (1) being prevented from turning back by staples (8). In order to mechanize the application of the staples (8), a staple gun (17) comprising a staple magazine (15) is associated with the respective longitudinal edge (2) at a point on the installation at which the edge is not normally turned back yet.

Abstract: The invention relates to a method for compressive shrinking a textile web of material (9) with the aid of a rubber blanket shrinking system, wherein the rubber blanket (3) is cooled after the main cylinder is discharged.

Abstract: The invention relates to a method for compressive shrinking a textile web of material (9) with the aid of a rubber blanket shrinking system, wherein the rubber blanket (3) is cooled after the main cylinder is discharged. The areas (22) of the rubber blanket not covered by the web of material (9) on the main cylinder are cooled after the cylinder is removed in a faster manner than the areas (27) of the rubber blanket (3) which are covered for the fixing purposes, in order to reduce premature embrittling of the edge areas (22) of the rubber blanket (3) which is not covered by the respectively treated web of material (9) on the main cylinder.

Abstract: A flap projecting from a glue joint between two paper strips after an on-the-fly supply roll change is shortened by continuously displacing the strips in a straight line, in a travel direction, and at a travel speed along a path such that the flap lies flatly against an outer face of the strips and engaging at least a part of a separating device against the outer face in the path. At least the part of the separating device engaging the strip is displaced in the travel direction at a speed greater than the travel speed such that, when the separating device engages the flap, the flap is bowed out away from the outer face downstream of the separating device. A blade is juxtaposed with the outer face of the strip immediately downstream of the separating device such that the bowed out flap engages and is cut by the blade.

Abstract: A method and device for trimming flaps formed upon joining a leading end of a new roll to the trading end of a web of a preceding roll in which the web, after joining, is guided around an upstream roller, along a straight path and then onto a downstream roller. A nozzle directs an air stream in the direction of movement of the web or along the width thereof to cause the flap to erect. Downstream of the nozzle a blade trims the flap while it is erected by the air stream.

Abstract: During an unsupported roll change, a flap of paper resulting at the joining point can lead to disruptions in a processing station situated down-stream. According to the invention, the paper web (1) is advanced on a carrying element that is moved faster than the paper web (1), for example, on a suction roll (5). Said carrying element is arranged so close to the continuous paper web (1) that it catches the flap (8) of paper, which is located on the paper web (1), with frictional engagement. The flap (8) of paper is advanced with its rear side on the paper web (1) in a sliding manner and in relation to said paper web (1) in order to cause the leading part of the flap (8) of paper to arch in a wavelike manner. The arched flap (8) of paper strikes a blade (6) and is cut away until it can no longer cause any disruptions.

Abstract: In a flying splice roll changer a splice tail occurs at the splice joint that may induce problems in a downstream processing station. The present invention is directed to shortening of the splice tail (2) by directing the paper web (1) around a deflection roller (3) so that the splice tail (2) is located on the outer face of the roller and extends radially under the action of centrifugal force while being optionally supported by air ejected from blowing nozzles (8, 9). The splice tail is then cut with a blade (7) located in the vicinity of the outer surface of the deflection roller (3) so that only an insignificant length of a few millimeters remains.

Abstract: An apparatus applies a coating composition consisting of a resin and fine abrasive particles like corundum particles, to a paper web by feeding the composition to the paper web as it loops around a guide roller to a metering roller juxtaposed with the guide roller. The coating composition, which may develop stripes, is then equalized with a structured roller engaging the paper-web pass leaving the guide roller and formed with at least one thread-like structuring element which may be followed by or preceded by a doctor blade arrangement or a smooth-surfaced roller.

Abstract: The invention relates to a device for applying a coating substance to a continuous paper web in a process for producing abrasion-resistant laminates for manufacturing decorative paper. The coating substance consists of a viscous mixture of melamine resin and alphacellulose to which particles of corundum are added, and is applied to the visible surface of the paper. The inventive device includes a deflector roll (2) on which the paper web (1) lies in an area in which it loops around; a metering roll (6) which is arranged parallel to the deflector roll (2) and forms the boundary of a gap with the same, and which is driven synchronously or almost synchronously with the deflector roll; a slit nozzle (7) for applying the coating substance either directly to the paper web (1) on the deflector roll (2) or to the metering roll (6); and a doctor blade of a rectangular piece (9) of flexible rubber type material.

Abstract: A system for treating a porous web with a liquid treatment liquid continuously moves the web along a path sequentially through a saturating station, steaming station, and drying station. A drum in the saturating station engages a back face of the web and a trough closely surrounds the drum and confronts a front face of the web. Seals form between the drum and trough a generally closed and pressurizable chamber through which the web passes and which is supplied with the treatment liquid at superatmospheric pressure so as to force the liquid against only the front face of the web. In the steaming station jets of steam are directed against the back face of the web to heat the web and disperse the treatment liquid throughout the web. The web is heated and dried in the drying station.

Abstract: A paper web impregnated with a liquid resin and following impregnation is coated with an abrasive particle containing coating mass or composition and then dried before a liquid resin is applied which does not contain the abrasive particles. The web is then finally dried and the resulting paper is particularly suitable as a cover sheet in the hot pressing of laminates since it minimizes wear of the laminate press.

Abstract: An air-cushion nozzle for an air-treatment device has a hollow housing having an upper wall formed by a pair of end plates and a central plate. The end plates form with the central plate a pair of generally parallel slots directed upwardly generally toward each other and one of the end plates is formed adjacent and along a full length of the respective slot with an array of throughgoing holes. The central plate is substantially imperforate between the slots. The housing is internally pressurized, normally with hot air, to form from each slot an upwardly directed elongated jet of air and from each of the holes a respective upwardly directed further jet of air.

Abstract: A suspension dryer for freshly moisturized webs of swellable paper has a row of lower nozzle beams which extend transversely to a throughgoing direction so as to be spaced from one another along a dryer length with a distance from one another and provided at an upper side with blowing openings, a row of upper nozzle beams extending transversely to the throughgoing direction at a distance from one another along the dryer length so as to be offset relative to the lower nozzle beams and provided on a lower side with blowing openings, a width of the nozzle beams arranged in an initial portion of the dryer length is greater than a width of the nozzle beams arranged in the remaining portion of the dryer length, and a distance between two adjacent ones of the nozzle beams arranged in the initial portion is greater than a distance between two adjacent ones of the nozzle beams arranged in the remaining portion.

Abstract: In known pressure impregnating devices there is a chamber, which continuously narrows in the transport direction, between a cylinder around which the web to be impregnated loops, and the inner wall of a trough containing the impregnating agent. The impregnating agent is supplied to the chamber under high pressure, which is further increased in the chamber by dynamic effects. Sealing problems arise at the inlet and outlet slits as well as at the front faces because of the high pressure. Disruptions in the operation can be created by fluff coming loose from the paper web as well as by impregnating agent penetrating between the sliding faces. The new device is intended to remedy these disadvantages, and is provided with the seals have alternating narrow gaps and wide grooves in the form of a labyrinth seal. The grooves are have drain openings for the impregnating agent flowing through.

Abstract: A device for measuring elongation of a structure includes mounts formed at least partially of electrically insulating ceramic material, the mounts having at least two points to be attached to a structure for shifting the mounts relative to each other upon elongation of the structure, and electrically conducting parts disposed on the mounts having electrical properties being influenced by the shifting of the mounts, at least a portion of each of the electrically conducting parts being subjected to mechanical stresses, and at least the portions of the electrically conducting parts being formed of electrically conductive ceramic material.