Abstract: Method for weaving fabrics with a rib structure, whereby on a weaving machine, two fabrics (22), (23); (49), (50) are woven one above the other with a rib structure according to a face-to-face weaving method, whereby each fabric comprises a backing fabric with rib warp yarns (15), (16), (17), (18); (43), (44), (45), (46) which are alternately woven in the backing fabric and are rib-formingly passed around over at least one weft yarn (4), (5), (32), (33) whereby pile warp yarns (19), (20); (47); are alternately interlaced in the top (21); (49) and the bottom fabric (22); (50) around at least one weft yarn (1), (2), (3), (6); (31), (36), and whereby these pile warp yarns (19), (20); (47) are split between the two fabrics so that two fabrics (22), (23); (49), (50) with a rib structure are obtained which also comprise at least one area with upright pile yarns.

Abstract: A shed-forming device, in particular an electronically controlled jacquard machine, with a number of combinations of at least two selection systems (3, 6 7), (5, 8, 9) respectively with selection elements provided one above the other. Each selection system comprises two hooks (6), (7), (8), (9) working together and that can be moved up and down by lifting device (13), (14) which can be selected by a selection element (3), (5). Hooks of different selection systems of a combination can be moved up and down, allowing for the use of simple selection elements. Two selection systems are provided per combination. This enables the number of selection systems with similar machine dimensions to be almost doubled in relation to the known devices.

Abstract: Method for face-to-face weaving pile fabrics whereby warp yarns (1)-(15) of a series of warp yarn systems are interwoven with weft yarns (16), (17), (18) in order to weave a top (19) and a bottom backing fabric (20), whereby pile warp yarns (11)-(15) are alternately passed around a weft yarn (16), (18) of the top backing fabric (19) and the bottom backing fabric (20) so that they form pile, whereby per warp yarn system at least two non-pile-forming pile warp yarns (11)-(15) are inwoven in one and the same backing fabric (19), (20) and according to this invention are divided per warp yarn system into at least two groups each with at least one pile warp yarn, so that the weft yarns (11, 13), (12); (14), (15) of different groups extend respectively at a different level in the backing fabric, and whereby finally the pile-forming pile warp yarns are cut through between the two backing fabrics so that two fabrics are obtained.

Abstract: Device for weft cancellation on a weaving machine offers wefts (1), (2), (3) to at least one weft insertion (5), (6), (7) on a weaving machine, which can be operated in order either to bring a weft within the feed area of a weft insertion or to hold it out of this feed area, to effect a weft cancellation. The device has a yarn carrier (19) which can be moved by a weaving machine drive in order to bring a weft (2) within the aforementioned feed area. The device can be operated in order to bring the yarn carrier (19) and a weft (2) into a first and a second mutual position, in which this weft (2) can or cannot be carried along by the yarn carrier (19) within the aforementioned feed area. A first embodiment comprises a movable pusher element (22) that can be operated in order to bring a weft (2) into a first and into a second position in relation to the yarn carrier (19). In a second embodiment the yarn carrier (19) can itself be brought into two different positions.

Abstract: A selection system for pile yarns in a gripper Axminster weaving machine has a gripper associated with an elongated pile yarn carrier, and provided to position a number of yarn ends at mutual distance in the length direction of that carrier. Each pile yarn carrier is axially movable in its length direction to present a selected yarn to an associated gripper. A movable selection beam effects the axial movement of the pile yarn carriers, coordinated with the movement of the grippers, by protrusions and notches working together on the pile yarn carriers and on the selection beam. The engagement into each other of the aforesaid protrusions and notches can be selectively controlled in function of the yarns to be selected, in which the pile yarn carriers are predominantly horizontally disposed. The selection beam positively drives the pile yarn carriers in horizontal direction both in forward and in return movement.

Abstract: A method is provided for weaving a false boucle fabric with a rib structure on weaving machines in successive weft insertion cycles. In each cycle a top (1), (2), (3) and a bottom weft thread (4), (5), (6) are inserted between binding warp threads (9-12) and pattern warp threads (13-16) of a series of warp thread systems so that a fabric is woven. Top (1-3) and bottom weft threads (4-6) are inwoven by a respective set of binding warp threads (9, 10), (11, 12), thereby weaving two backing fabrics. Respective pattern warp threads (13), (14); (15), (16) are interlaced in a respective backing fabric and are rib-formingly passed around over a top (2), (3) or bottom weft thread (5), (6) running between the backing fabrics which is not inwoven by binding warp threads (9-12), so that two fabrics (17), (18) with a rib structure are woven one above the other.

Abstract: Device for selecting pile yarns (3) in gripper Axminster weaving machines, with a number of elongated pile yarn carriers (1) axially movable according to their length, each of which is provided with a number of compressed air cylinders (8) with a pin (12) for a pile yarn (3), and with electronically controlled means for sending compressed air according to the pattern to the compressed air cylinders (8) in order to make the pin (12) for the selected pile yarn (3) work together with the sliding mechanism (7).

Abstract: A method for weaving a pile fabric on a rapier Axminster weaving machine is provided in which in the course of successive weft insertion cycles alternately one weft thread (1) alone and two weft threads (2), (3) one above the other are inserted between warp threads (4), (5), (6) so that a backing fabric (9) is woven, while pile threads (7) are so introduced that they are interlaced in the backing fabric (9) according to a three-shot weave by weft threads (1) inserted alone, which extend along the pile side of tension warp threads (6). An Axminster pile fabric is woven with pile formation according to a three-shot weave, while one pile row is formed per two weft insertion cycles. Also, an Axminster pile fabric is provided, in which in successive weft lines, alternately one weft thread (1) alone and two weft threads (2), (3) one above the other are inwoven, and, in which pile threads (7) are interlaced by weft threads (1) alone according to a three-shot weave.

Abstract: With a method for face-to-face weaving pile fabrics, whereby weft threads (1-6) are brought between warp threads (7-12) of a series of warp thread systems so that two backing fabrics (21), (22) are woven located one above the other with tension warp threads (7), (10) and dead pile warp threads (13-20) inwoven in the backing fabrics, whereby pile warp threads (13, 14, 18, 20) in each backing fabric form respective pile loops around first (1), (4) and around second weft threads (2), (5) which respectively run along the back and along the pile side of a tension warp thread (7), (10), and whereby the pile-forming pile warp threads (13, 14, 18, 20) are cut through between the backing fabrics, the dead pile warp threads (13-20), running along the pile side of the second weft threads (2), (5), are inwoven.

Abstract: Method for manufacturing a fabric with a rib structure, in particular a false bouclé fabric, whereby a backing fabric is woven out of binding warp threads (7), (8) and weft threads (1), (2), whereby pattern warp threads (5), (6) are alternately interlaced in the backing fabric and along one side of the backing fabric are rib-formingly passed around at least one weft thread (3) running outside the backing fabric. A fabric is thus obtained with a rib structure on only one side. Because of this the consumption of pattern warp yarn can be reduced.

Abstract: A device for tensioning and drawing back warp yarns brought from a creel to a weaving machine. The tensioning and drawing back device keeps tension and if necessary draws back warp yarns (2) led from a bobbin (1) to a weaving machine. A supporting body (6) has a curved friction surface to support the warp yarn (2) between the bobbin (1) and the weaving machine. A first (7) and a second tensioning element (8) exert a tensile force on the warp yarn (2), respectively, in front of and behind the curved friction surface (6). The tensioning elements (7), (8) can be suspended from the warp yarn (2) and for example only through their own weight may exert this tensile force. This device easily draws back the warp yarn (2) out of the weaving area. The replacement of a bobbin (1) occurs without interruption or disturbance of the weaving process.

Abstract: A jacquard heddle (1) comprising a connecting eye (2) that forms a free passage (3) for a harness cord (5) and a clamping passage (4) in communication with this free passage (3), whereby the harness cord (5) can be clamped in the clamping passage (4) and can be moved out of the free passage (3) to the clamping passage (4). This jacquard heddle (1) preferably also comprises a fixing sleeve (7), such as for example a shrink sleeve, for the clamped enclosure of the connecting eye (2) and of a part of a harness cord (5) passed around through this connecting eye.

Abstract: A sharpening device for the cutting knife (12) of a face-to-face weaving machine, comprising a belt-shaped sharpening means (4) of a flexible material provided with a sharpening face that is so disposable that the cutting knife (12) during its back and forth going movements comes into contact with this sharpening face, and that is movable in order to bring various areas of the sharpening face within reach of the cutting knife (12). The sharpening means (4) can be unwound from a reel (7) and be wound up by another reel (3) in order to bring several areas of the sharpening face within reach of the cutting knife (12). The two reels (3), (7) and the belt-shaped sharpening means (4) can be made as a detachable unit. The sharpening means (4) preferably runs with the sharpening part over an elastically disposed curved surface (9).

Abstract: A method for manufacturing fabrics with a rib structure, in particular false bouclé fabrics is provided. On a weaving machine two series of warp threads (4, 5, 6, 10, 11); (7, 8, 9, 12, 13) are provided for weaving a respective fabric (21); (22). In successive insertion cycles, in each case, at least three weft threads (1), (2), (3) are inserted one above the other between the warp threads, so that in each case a set of weft threads (3), (2); (1), (2) running one above the other are inwoven by the warp threads (5), (6); (8), (9) of one of the other two series, and at least one weft thread (3); (1) is inwoven by the warp threads (8), (9); (5), (6) of the other series, so that two fabrics (20), (21) with a rib structure are woven simultaneously. A method for manufacturing loop pile fabrics is provided.

Abstract: A face-to-face weaving machine with a weft insertion device (1), (2) is provided in order according to a top and a bottom insertion path to insert weft threads between warp threads (3-12). A lifting device (18, 19) works together with shed-forming devices (14), (15), (16), (17), of which first shed-forming device (14) is provided in order to bring warp threads (5), (6) above and between the insertion paths; second shed-forming device (15) is provided in order to bring warp threads (3), (4) between and below the insertion paths; third shed-forming device (16), (17) is provided in order to bring warp threads (7-12) above, between and below the insertion paths, such that the ratio (H/h) between, on the one hand the intermediate distance (H1), (H2) between two warp thread positions and on the other hand the lifting height (h) applied by the lifting device, is greater, preferably 1.5 times greater, for the third shed-forming device (16), (17) than for the first (14) and the second shed-forming device (15).

Abstract: A method for weaving face-to-face carpets consists of figures formed in an upper fabric and in a lower fabric. Different pile warp threads are woven-in alternately as non-working dead pile in the upper and lower fabrics to form figure-forming pile running from the upper fabric to the lower fabric and vice-versa. A double pile is woven-in with a transition in the weft direction from the figure-forming pile warp thread exiting the lower fabric to a figure-forming pile warp thread exiting the upper fabric. Carpet fabrics with face-to-face carpets separated into upper and lower fabrics is formed of different pile warp threads alternatively woven-in as non-working dead pile in the upper and lower fabrics which protrude as figure-forming pile. A color transition from one figure-forming pile warp thread to another figure-forming pile warp thread results in a woven-in double pile in the fabrics.

Abstract: A knife carriage for face-to-face weaving machines has a supporting surface with interchangeable, adjustable sliding parts which direct the knife carriage in relation to a guiding section. A cutting instrument separates top and bottom fabrics from each other. The instrument has attachment(s) for a drive cord from a drive mechanism for the knife carriage. The sliding parts and the attachment(s) for the drive cord on the supporting surface have a device, which when tightened, makes the attachment line of the device coincide respectively with the contact line of the sliding parts with the supporting surface, and surface the contact surface of the attachment(s) with the supporting surface. The length of the supporting surface is smaller than the distance between the extremities of the sliding parts protruding in relation to the supporting surface in longitudinal direction of the knife carriage.

Abstract: A weaving frame or module for supporting warp thread bobbins for a weaving device and for changing bobbins with the weaving modules and bobbin pallets, has bobbins that can, at least partly, be changed without causing any interruption or any disturbance to the warp thread tension in the weaving zone of the weaving device. The frame or module is subdivided into a number of fixed cells for taking individual bobbin pallets each of which has supports for holding a bobbin and for guiding and breaking a thread.

Abstract: A gripper rapier provision for weaving machines with a fixed gripper rapier body has a hook and a gripping face on the inside of the hook. A hinged clip suspended from the fixed gripper rapier body, with a gripping face thereon, works together with the gripping face of the hook to grip a weft thread taken by the gripper rapier provision. A mechanism is provided in front of the extremity of the gap, formed by the gripping face of the hinged clip and the gripping face of the hook, for preventing the weft thread from sliding to the extremity of the gap. It consists of a bar provided on the gripping face of the hook of the gripper rapier body working together with a hole in the hinged clip, or a bar running through the extremity of the hook of the gripper rapier body working together with a hole in the hook of the gripper rapier body, or a bar provided on the hinged clip working together with a hole in the hook of the gripper rapier body.

Abstract: A method for the face-to-face weaving of a pile fabric whereby on a weaving machine in successive insertion cycles in each case two weft threads (1), (2) are inserted almost simultaneously between binding warp threads and pile threads, so that two backing fabrics are woven, pile threads (3), (4), (5) have parts which form pile according to a two-shot weave and have other parts which are inwoven in a backing fabric, and two married pile threads (3), (4); (4), (5) perform a pile change. The successive positions (B=bottom; M=middle; T=top) of each pile thread (3), (4), (5) are predetermined in relation to the weft threads (1), (2) in a series of successive lift plans, of which every lift plan determines the positions in relation to the weft threads (1, 2) of two successive insertion cycles.