Abstract: In order to avoid marking by the supporting surfaces in an endless belt for paper machines or the like with a number of helices consisting of opposing winding legs and headcurves joining these flanks together and into whose intermediary spaces the headcurves of the neighboring helix are forced to a degree that there develops between the two helices a range of overlapping into which a rod is inserted and in order to create the possibility for regulating the flow of air through the wire belt, at least the paper web-supporting winding legs of the helices are glued with a layer of fiber segments. Additionally, in such an endless belt permeability may be controlled by providing fiber segments on the winding legs and/or on the side areas adjacent the loop flanks.

Abstract: The present invention is directed to a low bulk pin-type seam for use with the flat woven fabric. The preferred fabric is woven with continuous or monofilament yarns in the machine direction. The seam is formed by interconnecting loops constructed from the machine direction warp yarns. In constructing the seam loops, a portion of the fabric is made free of cross machine direction yarns and the warp yarns are selected out as either a loop forming yarn or as binder yarns. The fabric is then folded back upon itself in hem like fashion with the selected yarns being retained as loop forming yarns and the binder yarns being drawn back through the hem portion of the fabric to bind the hem and body portion of the fabric. If desired, a stitch pattern may be added to further secure the hem area.

Abstract: In order to avoid marking by the supporting surfaces in an endless belt for paper machines or the like with a number of helices consisting of opposing winding legs and headcurves joining these flanks together and into whose intermediary spaces the headcurves of the neighboring helix are forced to a degree that there develops between the two helices a range of overlapping into which a rod is inserted and in order to create the possibility for regulating the flow of air through the wire belt, at least the paper web-supporting winding legs of the helices are glued with a layer of fiber segments. Additionally, in such an endless belt permeability may be controlled by providing fiber segments on the winding legs and/or on the side areas adjacent the loop flanks.

Abstract: There is described a cloth for draining and drying paper webs, comprising a fabric formed by warp threads and weft threads.Said cloth further comprises a top layer of interlaced lengthwise strips and weft threads, at least one upper weft thread part passing underneath one or a plurality of lengthwise strips, being connected to the fabric by at least one warp thread thereof, which has been passed between said upper weft thread part and the lengthwise strip or strips.

Abstract: The present invention relates to a papermakers fabric having an upper layer comprised of a batt and an under layer comprised of a plurality of intermeshed monofilament spiral coils, retained by pintle means; the upper and lower layers being unified into a single fabric by application of adhesives to the interface between the batt layer and the under layer.

Abstract: A machine for forming a seam in a length of woven fabric to join together opposite ends of the gavric to thereby form an endless woven fabric belt.

Abstract: The present invention relates to multilayer papermakers fabric having an upper layer comprised of an upper layer and an under layer comprised of a plurality of intermeshed monofilament spiral coils, retained by pintle means; the upper and lower layers having different permeabilities and being unified into a single fabric by application of adhesives to the interface between the upper layer and the under layer.

Abstract: The present invention relates to a papermakers fabric having an upper layer comprised of a batt and an under layer comprised of a plurality of intermeshed monofilament spiral coils, retained by pintle means; the upper and lower layers being unified into a single fabric by application of adhesives to the interface between the batt layer and the under layer.

Abstract: A dryer fabric impregnated with metallic particles so as to increase the thermal conductivity of the fabric and also reduce its emissivity. The dryer fabric is a woven fabric having a plurality of interstices between its warp and weft yarns. By coating the fabric with a synthetic resin mixture containing metallic particles, such as aluminum particles, the interstices are substantially filled with metallic particles thereby improving the thermal properties of the fabric.

Abstract: A novel low bulk seam is disclosed for use in paper making machine fabrics, such as dryer felts. The seam is particularly adapted for use with multi-filament yarns which comprise multi-ply fabrics. A novel method for producing this seam is disclosed which comprises the insertion of a seaming coil, the removal of picks in adjacent fabric areas, the folding and sewing of such areas, the creation of a warp fringe, the weaving back of portions of that fringe into the fabric body, and the application of various fasteners including adhesive and sewing to create a unique, reliable seam providing substantially uniform thickness and air permeability across the full fabric width. A durable, reliable, non-marking seam is accordingly provided.

Abstract: A felt for use in a papermaking machine includes a surface layer of coarse fibers and an underlayer of relatively fine fibers secured to the surface layer. The surface layer supports a wet paper web as the felt and the web are moved through the press section of the machine. At the exit side of the nip of the press rolls, the water within the felt migrates by capillary action away from the web side to the finer underlayer as the nip pressure at the press section is released. Web rewetting is therefore significantly decreased.

Abstract: A process for treating papermaking fabrics, in particular dryer fabrics, includes coating the back surface of the fabric with a thickened resin mixture. To reduce the air permeability of a woven dryer fabric, the fabric is impregnated with a thickened resin mixture to thereby close up a portion of the spaces between the woven yarns. By applying a thickened resin mixture having a viscosity of between 1,000 and 5,000 centipoise to the back surface of the dryer fabric, the fabric is impregnated in a single pass with a sufficient quantity of the mixture to thereby reduce the air permeability to the desirable level.