Abstract: In the method for the production of a fabric, particularly tape fabric, two weft thread loops formed from different weft threads are laid into a shed formed of warp threads and bound off without use of an auxiliary thread. This is made possible thereby, that at least one weft thread is guided into the shed through a tooth gap of the reed.

Abstract: Fabric weaving method, which applies to producing a plain fabric, a twill fabric and a satin fabric, comprising providing two parallel groups each consisting of a certain number of heddle harness frames each of which carries every nth heddle of the succeeding heddles which alternate as a multiple of a certain number, and causing successive adjacent heddles to be operated by the corresponding harness frames in the different harness frame groups. In one embodied form, each individual heddle alternates between the different groups in being raised or lowered to permit the corresponding warp yarns to be raised or lowered, for each succeeding weft shooting or picking process. In another embodied form, each pair of heddle harness frames, one in one group and the other in the other group, alternates in being raised or lowered to permit the corresponding warp yarns to be raised or lowered for each suceeding weft shooting or picking process.

Abstract: Method and device on a loom for the manufacture of a woven fabric, wherein weft thread loops are formed by a weft thread in a shed formed of warp threads. Through feeding the weft thread in within the warp width and out to both sides over the outermost warp threads while forming loops, a woven fabric is obtained with like fabric edges which can no longer be distinguished optically.

Abstract: An industrial fabric of woven monofilament threads comprised of a melt extrudable polyaryletherketone having hydrolysis resistance at elevated temperatures, such fabric exhibiting a high modulus of elongation making it suitable for conveying applications in various industrial processing.

Abstract: The ribbon-type fabric is provided with weft-yarn loops inserted at both sides of the run of the warp yarn, the weft-yarn loops being held together at the two edges of the ribbon-type fabric by at least one auxiliary yarn. In order to avoid that the joints of the weft-yarn loops are visible to the exterior, the auxiliary yarn will run parallel to the weft-yarn loops over at least a part of the width of the ribbon-type fabric. The auxiliary yarn is tied-off in itself or by means of an additional auxiliary yarn.

Abstract: Sheet materials for cardiovascular and other prosthetic implants are fabricated of synthetic elastomers. These materials are characterized by molecular configurations that produce a nonlinear tensile modulus characteristic similar in shape to that of natural tissue. Selected elastomers, when formed as sheet material of appropriate geometrical configuration, promote the formation of natural tissue thereon which is appropriate for the mechanical characteristics desired.

Abstract: A heat resistant fabric is provided, preferably woven, and with an optional aluminized backing, the fabric being made from yarns having a core of flame and high heat resistant non-melting heat stabilized polyacrylonitrile fibers covered by a layer of aramid fibers or other heat resisting fibers with or without blending with other fibers, the covering layer providing a cushion to provide increased abrasion resistance of the core while also providing a heat resistant covering for the core.

Abstract: A narrow woven stretch fabric is formed from bare elastomeric warp threads separated by high shrink warp threads and from a high shrink weft thread. The edge elastomeric warp threads are loosely wrapped with heat set yarn. These edge threads, which are under the same tension as the other elastomeric warp threads, are wrapped between the supply and the loom. The weft thread is interwoven at a low weft per inch and the fabric is heat treated to shrink the non-elastic high shrink threads and corrugate the elastomeric threads without heat setting. The wrapping device and the surface feed rollers for the elastomeric threads are driven by the loom drive at appropriate speeds.

Abstract: Webbing is formed by weaving wefts and warps of high extensibility and has warp threads of low or medium extensibility suitably spaced apart in the widthwise direction of the webbing and woven into the webbing to form energy absorbing portions.

Abstract: A ribbon fabric, a method for manufacturing the same and a ribbon loom for carrying out the aforesaid method, wherein the ribbon fabric or tape has weft thread loops inserted from one side of the warp shed therethrough. At the other side of the warp shed a first auxiliary thread is drawn through the weft thread loops, and a second auxiliary thread, located outside of the weft thread loops is knitted with each n-th stitch of the first auxiliary thread for securing the latter.

Abstract: In the preferred embodiment, the triaxial fabric is adapted for use as a needlepoint canvas with the yarns forming the fabric being defined in three sets of the yarn courses with the courses within each set being parallel. The courses of each set are angular to the courses of the other two sets, usually at a 60.degree. angle with the courses from all three sets commonly intersecting at a plurality of points in a repetitive pattern over the fabric. Preferably, in one embodiment, one of the sets is at all intersecting points sandwiched between the yarn courses of the other two sets. In an alternate fabric construction the courses of one set are hidden substantially totally by the courses of the other two sets. In this alternate arrangement the other two sets have more courses than the hidden set over a given area.

Abstract: Prostheses for inadequate or diseased heart valves and blood vessels, formed of fabrics comprising multifilament synthetic yarns. For a heart valve the fabric is supported on a three-lobed frame. During manufacture, the fabric is subjected to a plural step compressive shrinking and crimping process to impart nonisotropic elastic compliance approximating the natural mechanical properties. The resulting composite structures are free of thrombogenic complications.

Abstract: A woven belting has a single-ply central portion and tubular edges which are integrally woven with the central portion as a hollow plain weave; high abrasion resistance is achieved for the tubular edges by shrinking their warp threads to a predetermined extent before the weaving operation. The warp threads in the edges of the belting are subsequently shrunk to their full possible extent during a final heat setting treatment of the whole belting.

Abstract: The fabric is woven with a reinforced warp strip between the background section and the selvage to allow spreading out of the fabric without using needle rollers in the background section. The reinforced warp strip may be formed with a permanent strip portion which remains with the background section and a removable reinforced strip portion which can be severed from the fabric.

Abstract: A fabric has a first catch thread being woven in a main warp and forming exterior loops about a first edge warp and a shuttle thread looping around the first catch thread and forming exterior loops about a second edge warp opposite said first catch thread exterior loops. The shuttle thread is further woven into the main warp and forms exterior loops about the first edge warp. A second catch thread is woven in the main warp, looped around the shuttle thread, and forms exterior loops about a second edge warp opposite said shuttle threads exterior loops about the first edge warp.

Abstract: A double-layer forming wire for paper-making, cellulose and similar machines, said wire being particularly arranged to prevent marking on the material to be formed. The wire comprises two layers of weft yarns interconnected by warp threads, the weft layer intended to face the material to be formed (top layer) and said warp threads being essentially tangents to the plane of the wire intended to face said material. In accordance with a special arrangement the warp threads also bind separately with the layer of weft threads (top layer) intended to face said material. The invention likewise concerns a method of producing a forming wire of the above structure.

Abstract: Woven rope includes a plurality of warp strands which extend longitudinally and cooperate with at least one weft strand which pulls the warp strands radially inwardly so that the resultant cordage has the appearance and feel of round rope, i.e. a cross-sectional thickness to width ratio of at least 0.75. The resulting woven cordage has greater strength than comparable braided or twisted rope. The woven rope may be made by weaving a plurality of strands with a weft strand which is under tension to pull the warp strands inwardly, or in the case of strand material which shrinks, e.g. nylon, the rope may be woven slightly loosely in a general oval shape and treated in boiling water to bring about shrinking of the assemblage of strands into a generally round shape. In one form, pre-woven or unwoven longitudal strands form the center of the woven rope. Typical materials which may be used to form rope are those presently used, e.g. nylon, polyolefins, hemp. etc.

Abstract: Leg twist in jeans made of twill fabrics may be avoided by skewing the fabric clockwise or counterclockwise depending on the twill direction before making the garment so that when the garment is laundered the positions of the warp and filling yarns will remain unchanged with respect to each other. For denim an 8% skew based on fabric width introduced in manufacturing the denim gives straight seams throughout the life of the garment.

Abstract: A Shuttleless Narrow Fabric Loom is provided with a weft inserting means, to insert filling in the warp sheds, there being two weft threads for each insertion. In order to retain the inserted weft threads in the shed and to form a proper selvage, a knitting needle is provided on the opposite side from the inserting means to engage the inserting member to acquire the weft as the inserting member is withdrawn. The needle which has caught the weft retracts in the direction of the warp flow until it casts off the weft previously acquired. During the knitting cycle, the weft is engaged next to the selvage adjacent the knitting needle to draw a measured loop of weft.

Abstract: A woven band particularly for use in safety belts for drivers and passengers of transport vehicles.The band is provided with warp yarns with different relative elongation characteristics, and weft yarns interwoven with the warp yarns. The warp yarns with lesser relative elongation is interwoven between the rest of the warp yarns having high elongation and strength so as to form on the band surface at least one distinguishable uniform strip, with the ratio between the relative elongation of the yarns of the strip to the elongation of the rest of the warp yarns being less than the ratio of the ultimate tensile force of the band to its actual breaking force.

Abstract: An additional, special warp thread system is woven into a web of woven material having a weft thread system and a warp thread system, the warp threads being arranged to have differing density in certain areas of the web for the purpose of increasing the structural rigidity. The additional warp thread system lies symmetrically with respect to the other warp thread system.

Abstract: An improved tear webbing is fabricated of two woven straps offering graduy increasing resistance to tearing of the pile yarn woven between the straps to assure that sequential tearing of only the pile ends will occur; and by providing the technique of snubbing or binding the pile yarn in place around each adjacent weft picks of the webbing so that the pile yarn will tear and discourage slipping that may otherwise cause failure of the straps.

Abstract: A conveyor belt with continuous longitudinal reinforcement strands has a mechanical transverse barrier to prevent longitudinal ripping slitting or tearing. The mechanical transverse barrier is a fabric with warp and weft threads embedded in a cover layer of the conveyor belt. The longitudinally running threads have a substantially lower tensile strength than the transversely running threads, i.e. the tensile strength of the transverse threads is at least 8 times that of the longitudinal threads and preferably upwards of 20 (e.g. 30 to 50) times that of the longitudinal threads.

Abstract: A fabric for reinforcing rubber or rubber-like belts, the fabric comprising weft cords interlaced with and extending transversely of warp cords to retain the latter in parallel relation, the warp cords being constituted of synthetic spun yarn having no greater than two single ends plied together. The foregoing abstract is neither intended to define the invention disclosed in the specification, nor is it intended to limit the scope of the invention in any way.