Abstract: A resin-coated endless belt for a long nip press has a base which is a polymeric film structure in the form of an endless loop with an inner surface, an outer surface, a transverse direction and a longitudinal direction. The polymeric film structure has a plurality of perforations which may be aligned in one or both of these directions. The polymeric film structure is stretched in the presence of heat to orient the molecular chains in the unperforated intervals between the perforations to provide the structure with tenacity and resistance to further stretching. At least the inner surface of the base (polymeric film structure) is coated with a polymeric resin material, such as polyurethane. The polymeric resin material coats the base and upon curing, forms a mechanical interlock therewith by virtue of the perforations, and renders it impermeable to oil and water.

Abstract: A papermaker's fabric having a smooth surface and a prolonged life includes flat machine-direction yarns which define the upper and lower surfaces thereof. The fabric has two layers of cross-machine direction yarns, each of which is interwoven with the flat machine-direction yarns. Other machine-direction yarns, of round cross section, weave with the cross-machine-direction yarns in the two layers to bind the two layers together. The knuckles of these round machine-direction yarns are within the fabric with respect to the planes defined by the flat machine-direction yarns, and, as a consequence, are less susceptible to degradation by heat and abrasion. The round machine-direction yarns may be used to seam the fabric. A longer fabric life follows from the protection of the round machine-direction yarns by the flat. The papermaker's fabric is particularly useful as a dryer fabric on the dryer section of a papermachine.

Abstract: A method for making a belt for use in papermaking includes a series of steps. A sheet of uncured urethane is wrapped on a polished mandrel. A woven fabric sleeve to serve as a supporting carcass is placed over the first sheet and shrunk onto it. A second sheet of uncured urethane is placed over the woven fabric sleeve. A nylon web is wrapped tightly around the second layer and the entire wrapped mandrel is heated, curing the urethane sheets and entirely bonding the sheets to encapsulate the fabric sleeve. The nylon wrap is removed and the surface of the cured urethane is ground.

Abstract: A method of forming a belt for use in papermaking includes applying a first coat of liquid urethane to a smooth mandrel, drying the first coat, grinding the first coat to a predetermined thickness, placing a woven fabric sleeve on the coated mandrel, shrinking the fabric sleeve, applying a second coat of liquid urethane thereto, drying the second coat, and removing the belt from the mandrel.

Abstract: A seam for joining the ends of a fabric to form an endless belt which can be used for papermaking, is created by attaching a continuous coil to each fabric end, the loops of the coils being preformed so that when the loops are intermeshed each loop of one coil engages or creates an interference fit, with two loops of the opposite coil. To strengthen the seam, a pin is inserted in the tube formed by the intermeshed loops.The loops are joined by using a tool which has two channels through which the ends are brought together. The channels are formed between two plates attached to the ends of scissor arms.

Abstract: A seam for joining the ends of a fabric to form an endless belt which can be used for papermaking, is created by attaching a continuous coil to each fabric end, the loops of the coils being preformed so that when the loops are intermeshed each loop of one coil engages or creates an interference fit, with two loops of the opposite coil. To strengthen the seam, a pin is inserted in the tube formed by the intermeshed loops.The loops are joined by using a tool which has two channels through which the ends are brought together. The channels are formed between two plates attached to the ends of scissor arms.

Abstract: The disclosure is of a multi-layer, flat woven, composite fabric having a duplex weave base of synthetic, polymeric resin yarns and soft surfaces of multi-filament or spun yarns. The fabric is useful as a conventional corrugator belt when made endless.

Abstract: A papermakers press felt having a raised pattern of substantially incompressible islands which provide void area on the back of the felt for the free passage of water which has been squeezed from the felt by press rolls, allowing lateral as well as longitudinal flow and providing a degree of pumping action.

Abstract: The disclosure is of a fabric adapted as clothing for a papermaking machine. The fabric, which may be made endless, is useful to make dryer felts, wet felts and forming wires. The fabric of the invention comprises a plurality of crosswise yarns disposed in a plurality of separate layers, each layer being on a plane parallel to the crosswise plane of the fabric. A plurality of lengthwise yarns is interwoven with the crosswise yarns and binds the layers of crosswise yarns together to form a multilayer fabric. Structurally, the crosswise yarns in a given layer are separated from the adjacent crosswise yarns in adjacent layers at points along their length by void spaces within the body of the woven fabric. A synthetic, polymeric, thermoplastic resin foam fills, at least partially, the void spaces to control the void volume in the fabric of the invention.

Abstract: The disclosure is of a seam construction for joining the ends of woven papermakers felt or dryer felts, wet felts forming fabrics characterized in part by a first system of lengthwise yarns in one layer and a second system of lengthwise yarns positioned above the first system. The seam comprises looped ends of the lengthwise yarns projecting from the respective ends of the fabric, and positioned to interleaf with the opposite end loops. Pins are placed through the interleafed loops so as to provide joinder in the two systems, respectively, of the felt or fabric.

Abstract: The disclosure is of a multi-layer, flat woven, composite fabric having a duplex weave base of synthetic, polymeric resin monofilaments and a soft surface of multi-filament or spun yarns. The fabric is useful as a conventional dryer felt and may also be used as a hot air impingement dryer felt. The fabric is especially advantageous for dryer felts employed for the manufacture of fragile papers.

Abstract: The disclosure is of a seam construction for joining the ends of woven forming wire wet felts and dryer felt materials. The forming wires wet felts, and dryer felts are used on papermaking machines in the manufacture of paper, paperboard and the like. The seam comprises a plurality of metal and/or plastic eyepins, having body crimps adapted to permit interweaving of the pins with the crosswise yarns of the forming wire wet felt or dryer felt material ends. The pins are so interwoven and are spaced to interleaf with the pins of the opposite end. A seam pin is threaded through the eyes of the eyepins to join the ends of the forming wire, wet felt or dryer felt material together.

Abstract: A novel open weave endless dryer belt is disclosed which comprises in a leno weave, warp yarns of synthetic organic fibers and crosswise yarns of synthetic organic fibers braided over a core of glass fibers and/or metal wire. The fabric weave is then finished with a coating of a temperature resistant resin. The fabric of the invention is useful for fabricating conveyor belts employed in conveying textiles through dryers and in like applications.

Abstract: A fabric connector seam in which woven complementary seam-halves joined by a pintle are provided and in which each seam-half comprises a single and a double layer zone mechanically bound by the nature of the weave and in which the crosswise yarns of each seam-half form alternately displaced loops on one edge thereof which can be intermeshed with like loops formed on the edge of the remaining seam-half.