Abstract: A three-position shed-forming device with a shed-forming element (10);(60,70) in connection with a warp yarn, two lifting devices (1),(2);(41),(42);(51),(52) with a different lifting height (h), (2h) which are movable up and down in phase, and a selection device (20,21); (83,84) (93,94) in order to have the shed-forming element carried along either by the first lifting devices (1);(41);(51) or by the second lifting devices (2);(42);(52) or by none of the lifting devices. A similar device is able to bring, during successive weft insert cycles, a warp yarn alternately into the lower position and in any of the upper, center and lower positions, and has no pulley block elements.

Abstract: A pulley-less shed-forming device for a weaving machine, such as a jacquard machine, has a number of shed-forming elements (1), such as hooks, to determine the positions of one or more warp yarns on a weaving machine. A lifting device (50), (51) moves the shed-forming elements (1) up and down. At least one actuator (40)-(44), (80), (83) is provided for selectively influencing the shed-forming element (1), so that it is either kept at a fixed height, or is moved by means of the lifting device (50), (51). The element (1) has at least one selection body (7), (8), (9) which, for said selective influencing, may be moved into first or second stable positions, as desired, by an actuator (40)-(44), (80), (83) forming a shed-forming element (1) in itself. It may also be formed as a device without a pulley. Because the positions of the selection body are stable, their position may be changed by a single temporal influence by the actuator making the device energy efficient.

Abstract: A device for guiding the knife-supporting beams in a jacquard machine is provided. The device is for rectilinear guiding of a body (1) of a shed-forming device that can be driven in a back and forth movement. The device has a rod mechanism (2, 3, 4) of which a first (2) and a second rod (3) are rotatably connected to respectively the aforesaid body (1) and a fixed part (11). This rod mechanism is provided to exert a rectilinear movement on the joint (5) between the body (1) and the first rod (2) while driving the body (1). The joint (5) between the first rod (2) and the body (1) moves for that purpose preferably in a straight line through the joint (7) between the second rod (3) and the fixed part (11). This device is especially utilized as a shed-forming device of a machine of the Jacquard type for the rectilinear guiding of knife-supporting beams. Such a rectilinear guide has the advantage that it can be implemented with only hinge points that require no maintenance.

Abstract: A method for manufacturing a loop pile fabric with a varied appearance includes a woven backing fabric. Loop weft yarns (12A), (12B) are provided outside the backing fabric, and loop warp yarns (1), (2), (3) are so provided that they are alternately inwoven in the backing fabric and form a pile loop (13), (14) over at least one loop weft yarn (12A), (12B), and the loop weft yarns (12A), (12B) are subsequently removed. By providing first (12A) and second loop weft yarns (12B) with a different thickness, pile loops (13), (14) of different height are formed. To obtain a fabric in which both pile loops (13) and cut pile (15) occur subsequently a top part can be removed from a number of pile loops (13). In areas (19) where no pile loops are formed effect backing weft yarns (11B) with laterally protruding filaments can be inwoven in the backing fabric. A loop pile fabric can be manufactured according to this method.

Abstract: A three-position shed-forming device with a shed-forming element (10);(60,70) in connection with a warp yarn, two lifting means (1),(2);(41),(42);(51),(52) with a different lifting height (h), (2h) which are movable up and down in phase, and a selection device (20,21); (83,84) (93,94) in order to have the shed-forming element carried along either by the first lifting means (1);(41);(51) or by the second lifting means (2);(42);(52) or by none of the lifting means. A similar device is able to bring, during successive weft insert cycles, a warp yarn alternately into the lower position and in any of the upper, center and lower positions, and has no pulley block elements.

Abstract: A hook selection device for a shed-forming device for a weaving machine, in particular for a jacquard machine, has a number of hooks (3), (4) that can be moved up and down by a lifting means (1), (2). For each hook, there is a selection element with which the hook can be selected for being held by a holding element (5), (6) at a selection height. A resetting device (7) exerts a downward directed resetting force on the hook (3), (4), only during the movement on a path of the hook. The resetting device (7) is provided to transmit the resetting force to a contact part (8) of the hook that is lower than the top hook extremity, while each resetting device comprises a pressure device (10), which can be moved upward by a hook (3), (4) against a downward directed spring pressure.

Abstract: This invention relates to a shed-forming device, such as for instance a jacquard machine, with a number of shed-forming elements (1) (for instance hooks) to determine the positions of one or more warp yarns on a weaving machine, a lifting means (50), (51) for moving up and down the shed-forming elements (1), and at least one actuator (40)-(44), (80),(83) wherewith the shed-forming element (1) may be selectively influenced, so that it is either kept at a fixed height, or is moved by means of the lifting means (50),(51).

Abstract: This invention relates to a device for the rectilinear guiding of a body (1) of a shed-forming device that can be driven in a go and fro movement whereby the device comprises a rod mechanism (2, 3, 4) of which a first (2) and a second rod (3) are rotatably connected to respectively the aforesaid body (1) and a fixed part (11), whereby this rod mechanism is provided in order to exert a rectilinear movement on the joint (5) between the body (1) and the first rod (2) in the course of driving the body (1). The joint (5) between the first rod (2) and the body (1) moves for that purpose preferably in a straight line through the joint (7) between the second rod (3) and the fixed part (11). This device is especially utilized as shed-forming device of a machine of the Jacquard type for the rectilinear guiding of knife-supporting beams. Such a rectilinear guide has the advantage that it can be implemented with only hinge points that require no maintenance.

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: This invention relates to a hook selection device for a shed-forming device for a weaving machine, in particular for a jacquard machine, comprising a number of hooks (3), (4) that can be moved up and down by a lifting means (1), (2) and, for each hook, a selection element with which the hook can be selected in order to be held by a holding element (5), (6) at a selection height, and a resetting device (7) in order to exert a downward directed resetting force on the hook (3), (4), only in the course of a part of the movement path of the hook. The resetting device (7) is according to this invention provided in order to transmit the resetting force to a contact part (8) of the hook that is lower than the top hook extremity, while each resetting device comprises a pressure means (10), which can be moved upward by a hook (3), (4) against a downward directed spring pressure.

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: This invention relates to a method for manufacturing a loop pile fabric with a varied appearance, whereby a backing fabric is woven, whereby loop weft yarns (12A), (12B) are provided outside the backing fabric, whereby loop warp yarns (1), (2), (3) are so provided that they are alternately inwoven in the backing fabric and form a pile loop (13), (14) over at least one loop weft yarn (12A), (12B), and whereby the loop weft yarns (12A), (12B) are subsequently removed. According to this invention by providing first (12A) and second loop weft yarns (12B) with a different thickness, pile loops (13), (14) of different height are formed.

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: 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: A shed-forming device for individually controlling heddles for the warp threads of a weaving device has hook elements which are connected to the heddles for the warp threads. Upward and downward moving knives are provided for the hook elements can hook onto. The hook elements have spring elements on a supporting element or carriage. Actuators are provided which influence the spring elements to allow the hook elements to selectively hook or not hook onto the upward and downward moving knives. Each hook element is provided with at least three spring elements in the form of spring legs. At least two spring elements are made as at least double laminated springs. At least two of the spring legs are provided with hooks destined to work together with moving knives. One or more actuators are provided which can selectively influence the various spring elements. Retaining hooks are provided for at least a part of the spring elements in a position influenced by an actuator.

Abstract: A shed-forming device for individually controlling heddles for warp threads of a weaving device has hook elements connected to the heddles for the warp threads. Upward and downward moving knives are provided to which the hook elements can hook onto. The hook elements are provided with spring elements and actuators connected to the spring elements allow the hook elements to selectively hook or not hook onto the upward and downward moving knives. Each hook element also has at least three spring elements in the form of spring legs. At least two spring elements are made as double laminated springs. At least two of the spring legs are provided with hooks for working together with the moving knives. One or more actuators are provided which selectively influence the various spring elements. Retaining hooks are provided for at least a part of the spring elements in a position determined by an actuator.

Abstract: Shed forming device for a textile machine having at least one shed forming mechanism operating with an upward and a downward movement. A movable shed forming element and a pulley element are connected to the shed forming mechanism. A selection device holds the shed forming element at a fixed height. A lifting device moves the shed forming element up and down when it is not held at the fixed height. The selection device is included in a selection module formed as a separate unit which is detachably attached to a pulley module. The pulley module includes the pulley element and the shed forming element and is also detachably attached to a part of the shed forming device.

Abstract: Shed forming device for a textile machine having at least one upwardly and downwardly moving shed forming mechanism. An actuator is connected to a movable holding element for moving the element to a holding position and a non-holding position. In the holding position the element holds the shed forming device at a fixed height. A stop is connected to the element for supporting the holding element when it is in the holding position. Because of this the holding element is held on the stop by the shed forming mechanism. Thus, the contact pressure between the shed forming means and the holding element is produced by the hook load itself allowing for a support for the holding element to remain unstressed.