Abstract: A jointing device for connecting together the ends of a papermakers or like fabric including coil elements (13, 14) attachable to the respective fabric ends, the end regions (20, 21) of the individual turns of the coils being so profiled as inherently to maintain, on interdigitation of the coil, a degree of interengagement which is sufficient to provide and maintain a tunnel (16) to receive a pintle wire (15) into engagement therewith. It is suggested that the coils be such as to be capable of interdigitation by a mechanical device such as, for example, a slider (22).

Abstract: In order to reduce the adverse effects of overpressure on a paper sheet existing at the outer face of a dryer fabric moving in contact with a dryer cylinder in the dryer section of a paper machine, it is proposed to provide void-spaces at the fabric-cylinder interface, or the equivalent, arranged in fluid flow connection with that space in which boundary air moving with the fabric towards the position of engagement of the fabric with the cylinder is progressively compressed, as the fabric moves into contact with the cylinder.

Abstract: The invention proposes the use, in the manufacture of link belts, of helical coils wound from elongate synthetic plastics material of non-circular, and preferably generally rectangular, transverse cross-section, the major dimension of the said cross-section extending widthwise of the link belt.By using, for example, flat monofilament yarns of a given cross-section in the production of an oval coil of a related major dimension it is possible to increase the cross-section of the wire receiving tunnel formed by two interdigitated coils without prejudice to the capability of interdigitated coils to remain in mutual engagement, and thus facilitate the introduction of hinge wires by mechanical means.

Abstract: An industrial fabric, and particularly a papermakers dryer fabric, is proposed wherein the permeability thereof is reduced by the inclusion of a continuous layer of an elastomeric open-cell foam therein which extends to and is contiguous with at least one surface of the base structure, the base structure comprising a link belt or a woven or knitted fabric.

Abstract: A method of and a means for the automatic seaming of fabric ends to form an endless papermakers and like fabric which teaches the enlargement of the shed of a sheet of yarns, controlled by a jacquard mechanism (93) by shed fingers (98, 113) engageable with such shed (20) transversely of the weft yarns forming the same, to facilitate the successive introduction of individual free warp ends (28) extending from the respective ends to be joined by inserter members (123) which engage the shed from opposite sides thereof.

Abstract: The warp and/or the weft of a woven papermakers fabric is made from a combination of polyester monofilament yarns and separate yarns of a different material preferably a more wear-resistant material so that the polyester yarns give adequate dimensional stability while the other yarns impart a different property, preferably, improved wear resistance.

Abstract: In order to protect the longitudinal edges of a link belt against damage or undue wear it is proposed to provide an edge guard comprising a multiplicity of guard elements engaged with the coils of the belt, the elements each comprising a body part for disposition adjacent the edge of the belt and a mounting element for engagement with a respective coil. The body part is preferably flexible, and the body parts of adjacent elements may partially overlie one another in providing a reinforcing wear resistant edge to the belt for protecting the ends of the coils.

Abstract: A link conveyor is proposed which includes a first set of helical coils or spirals connected together in interdigitated parallel disposition to define a base structure providing adequate strength and dimensional stability in the conveyor and a second set of interdigitated helical coils or spirals connected together and to the base structure and forming a supplementary structure for protecting the said base structure against damage or undue wear. The base and supplementary structures may be arranged to form a single layer conveyor or may comprise two separate plies connected together by support coils to define a Duplex structure. The conveyor is of particular application to papermachine clothing suitable for dryer fabrics, forming fabrics and base structures for press felts.

Abstract: The warp and/or the weft of a woven papermakers fabric is made from a combination of polyester monofilament yarns and separate yarns of a different material preferably a more wear-resistant material so that the polyester yarns give adequate dimensional stability while the other yarns impart a different property, preferably, improved wear resistance.

Abstract: A multi-layer papermarker's fabric is proposed wherein a helical coil is engaged individually with each of the plies of the fabric to define side-by-side loops protruding from the fabric end for interdigitation with corresponding loops at an opposed fabric end to receive a pintle wire, the arrangement being such that, in use, one ply of the fabric protects the helical coil and its connection with another ply of the fabric against wear and damage.

Abstract: In order to reduce the rate of wear of a papermakers fabric having a loop seam, especially in the region of such loop seam, a protective facing of additional cross-machine direction yarns is provided at the intended roller side of the fabric. The additional yarns are woven integrally with the fabric and are arranged to float at the face of the fabric, and define a surface to the fabric as a whole which is displaced outwardly of the fabric in relation to the surface of the basic weave structure.

Abstract: A paper making apparatus of the type having a movable endless belt which conveys a wet web of paper between a pair of pressure rollers for driving water out of the web and then passing the web to a drying zone. A surface layer of the belt is formed from a water-absorbent nonwoven fiber material and a backing layer is provided which is coarser than the surface layer and is formed from water-absorbent wads of separate fibers. The surface layer has hydrophobic properties such that the surface layers has a critical surface tension less than 33 dynes per centimeter and is held in intimate contact with the backing layer by fibers of the surface layer which penetrate and are needled into the backing layer. The layers are thus so integrated that water forced into the surface layer by the pressure rollers is readily taken up by both layers to be retained thereby.

Abstract: A papermakers fabric formed from yarns of synthetic polymeric material has a coating of a different polymeric material of better abrasion resistance applied to the yarns.

Abstract: Loops are created at the ends of a woven papermaking machine forming fabric by a method which comprises removing weft yarns from the end of the fabric to give a weft-free zone, shortening selected ones of the warp yarns in the region of the weft-free zone, folding back the uncut warp yarns into register with respective ones of the shortened warp ends to form loops spaced transversely of the fabric, and introducing weft yarns into the resultant weftless end of the forming fabric, the crimp pattern of the individual uncut warp ends being such that when the ends are folded back the overall crimp pattern of the warp yarns in the weftless end of the forming fabric is compatible with that of the body of the forming fabric.

Abstract: A dimensionally stable warp knitted paper maker's felt includes a plurality of interlocked yarns having a weight per unit length equivalent to at least 500 denier. Laid-in yarns and/or resin may be used to impart the desired stability to the felt.