Abstract: This invention is related to a drive pinion (1) for actuating a rapier rod (2) of a weaving machine, whereby interaction of rapier rod (2) with drive pinion (1) is subject to less hindrance and damage due to occurring impact load at increased operational speeds and/or larger weaving widths, in that the tooth thickness (Td) of at least one tooth (3) of the drive pinion (1) varies in widthwise-direction (Tb) of the tooth (3), and whereby this tooth thickness (Td) is larger in the middle area (5) than in the fringe areas (7).

Abstract: The invention relates to a device for attaching to a face-to-face weaving machine cylindrical upper and lower temples of the type having inclined toothed rings provided on shanks, the shanks of the upper and lower temples being attached to separate L-shaped upper and lower temple holder plates, in such a manner the temple shanks, pointing to the center of the weaving machines, are attached to the leg of the L-shaped holder plate placed in the warp direction, whereas the other leg of the L-shaped holder is directed towards the outside of the weaving machine and, in a manner adjustable in the warp-direction, is attached to a horizontal connecting piece, itself, in a manner adjustable as to height, being attached to a vertical holder.

Abstract: A device for separating warp yarns (16), (17) on a face-to-face weaving machine (13), comprising a separating means (1), (2) and a holding device (3,7,9,11), (4,8,9,12) which comprises a threaded adjusting means (11), (12), the adjusting means (11), (12) being provided in such a manner that its rotation will cause the separating means (1), (2) to be moved, because of which the holding height will be changed and adjusted and the adjusting means (11), (12) being able to maintain the adjusting means (1), (2) at the adjusted holding height. Moreover, the holding device (3,7,9,11), (4,8,9,12) will enable an adjustment in the warp-direction. With a similar device adjusting the holding height can be carried out in a very simple and accurate manner and whilst being adjusted the separating means (1), (2) will be unable to make any unwanted and dangerous movements.

Abstract: The invention relates to a face-to-face weaving machine with face-to-face shed forming, a twister device (1) being provided and relates further to a twister device (1) for a face-to-face weaving machine with face-to-face shed forming, the twister device (1) being situated between weaving frames (11), mutually provided with a free space and a weaving reed (12) and the twister device (1) being provided with means (2) for positioning a first series of warp threads (101) in waving means, means (3) to wave the first series of warp threads (101) and means (4) to cause a second series of warp threads (100) to move up and down, said means (4) to cause a second series of warp threads (100) to move up and down being driven by a driving device (19) provided with a casing (7), and said means (2) for positioning a first series of warp threads (101) in waving means, said means (3) to wave the first series of warp threads (101) and said means (4) to cause a second series of warp threads (100) to move up and down being attac

Abstract: A face-to-face weaving machine with face-to-face shed forming has a passage for, and access to, the weaving frames without being hampered by a rear traverse. The face-to-face weaving machine with face-to-face shed forming is provided in which the weaving machine has no rear traverse.

Abstract: A device for adjusting the tension of pile warp yarns in a face-to-face weaving machine comprises a first (14) and a second yarn guiding element (11), the second yarn guiding element (11) adjusting the tension in the pile warp yarns (100) by deflection. A pneumatic system (16) is provided, where the pressure in the pneumatic system (16) determines the deflection of the second yarn guiding element (11) and where the pneumatic system (16) is provided to maintain the pressure at a practically constant value, adjustable via a control system. The device is further provided so that the tension in the pile warp yarns (100) is adjustable by adjusting a certain pressure in the pneumatic system (16).

Abstract: Drop pin for stop motion (1) comprising a body (2) with a yarn lead-through opening (3) provided to rest on a thread extending through this opening (3). The drop pin is supported by a supporting surface or edge (4), forming a concavely curved bordering of this opening (3) and which, in cross-section, has a convex form. The supporting surface (4) may have a rounded spherical form or a form with a number of angle forming sides, such as for instance a polygon. Preferably, the yarn lead-through opening (3) is circular. Also provided is a device for detecting the thread breakage on a weaving machine, comprising a number of similar drop pins for stop motion and a weaving machine provided with a similar device.

Abstract: The invention relates to a device for attaching to a face-to-face weaving machine cylindrical upper and lower temples of the type having inclined toothed rings provided on shanks, the shanks of the upper and lower temples being attached to separate L-shaped upper and lower temple holder plates, in such a manner the temple shanks, pointing to the center of the weaving machines, are attached to the leg of the L-shaped holder plate placed in the warp direction, whereas the other leg of the L-shaped holder is directed towards the outside of the weaving machine and, in a manner adjustable in the warp-direction, is attached to a horizontal connecting piece, itself, in a manner adjustable as to height, being attached to a vertical holder.

Abstract: The invention relates to a face-to-face weaving machine with face-to-face shed forming, a twister device (1) being provided and relates further to a twister device (1) for a face-to-face weaving machine with face-to-face shed forming, the twister device (1) being situated between weaving frames (11), mutually provided with a free space and a weaving reed (12) and the twister device (1) being provided with means (2) for positioning a first series of warp threads (101) in waving means, means (3) to wave the first series of warp threads (101) and means (4) to cause a second series of warp threads (100) to move up and down, said means (4) to cause a second series of warp threads (100) to move up and down being driven by a driving device (19) provided with a casing (7), and said means (2) for positioning a first series of warp threads (101) in waving means, said means (3) to wave the first series of warp threads (101) and said means (4) to cause a second series of warp threads (100) to move up and down being attac

Abstract: This invention relates to a device for separating warp yarns (16), (17) on a face-to-face weaving machine (13), comprising a separating means (1), (2) and a holding device (3, 7, 9, 11), (4, 8, 9, 12) which comprises a threaded adjusting means (11), (12), the adjusting means (11), (12) being provided in such a manner that its rotation will cause the separating means (1), (2) to be moved, because of which the holding height will be changed and adjusted and the adjusting means (11), (12) being able to maintain the adjusting means (1), (2) at the adjusted holding height. Moreover, the holding device (3, 7, 9, 11), (4, 8, 9, 12) will enable an adjustment in the warp-direction. With a similar device adjusting the holding height can be carried out in a very simple and accurate manner and whilst being adjusted the separating means (1), (2) will be unable to make any unwanted and dangerous movements.

Abstract: This invention relates to a face-to-face weaving machine with face-to-face shed forming. The problem with the face-to-face weaving machines with face-to-face shed forming known up to this moment is that the passage for and the access to the weaving frames are hampered by the rear traverse. Therefore, in the invention, a face-to-face weaving machine with face-to-face shed forming is provided, in which the face-to-face weaving machine (1) comprises no rear traverse.

Abstract: The invention relates to a device for adjusting the tension of pile warp yarns in a face-to-face weaving machine, the device comprising a first (14) and a second yarn guiding element (11), the second yarn guiding element (11) adjusting the tension in the pile warp yarns (100) by deflection, and where a pneumatic system (16) is provided, where the pressure in the pneumatic system (16) determines the deflection of the second yarn guiding element (11) and where the pneumatic system (16) is provided to maintain the pressure at a practically constant value, adjustable via the control system. The device is further provided so that the tension in the pile warp yarns (100) is adjustable by adjusting a certain pressure in the pneumatic system (16).

Abstract: Drop pin for stop motion (1) comprising a body (2) with a yarn lead-through opening (3) provided to rest on a thread, extending through this opening (3), by means of a supporting edge (4), forming a concavely curved bordering of this opening (3) and which, in cross-section, has a convex form. The form of the supporting surface (4) may be a rounded spherical form, as well as a form with a number of angle forming sides, such as for instance a polygon. Preferably, the yarn lead-through opening (3) is circular. Also a device for detecting the thread breakage on a weaving machine, comprising a number of similar drop pins for stop motion and a weaving machine provided with a similar device are within the scope of this invention.

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 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: 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 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).