Abstract: A multi-carrier, zonal weaving system and method of manufacturing a zonal woven material is provided. The multi-carrier system includes a first weft yarn, a second weft yarn, and one or more intermediate warp yarns for wrapping by the first and second weft yarns. The zonal weaving method includes receiving a first weft yarn from a first origin via a first shed, wrapping it around one or more zonal warp yarns, and returned to the first weft origin after the first shed upper and lower yarns are exchanged. In further aspects, a second weft yarn is received from a second weft origin via a second shed, wrapped around the same intermediate, zonal warp yarns, and returned to the second weft origin after exchange of the second shed yarns. In one aspect, the first and second weft yarns are interlocked during wrapping of the common warp yarns.

Abstract: In one embodiment, the invention includes a medical instrument for insertion into a subject including an elongate body which includes a proximal end and a distal end, a broad face, a narrow face, a lateral side and a counter-lateral side, said faces and sides defining a trapezoid shape along the length of the elongate body. The broad and narrow faces are generally parallel to one another and the lateral and counter-lateral sides each connect between the broad and narrow faces. The distal end of the instrument includes a cutting edge and is provided for insertion into the subject, wherein an incision made in a target area of the subject results in a linear penetration in the target area. An aperture may be disposed at or near the distal end of the medical instrument.

Abstract: This weft insertion system includes at least one rapier (6, 8) provided with weft yarn clamping means (622, 822) for drawing a weft yarn (202) and a reed (2) provided with dents (22) made of a magnetic material. The rapier (6,8) is equipped with magnetic means for exerting an attractive magnetic effort (E, E?) between this rapier and the dents of the reed. The reed (2) advantageously has a variable magnetic permeability along its longitudinal axis (X2). The rapier (6, 8) has a lateral face (8262) oriented towards the reed (2) and the magnetic means have a direction of polarization perpendicular to the direction of travel (X6, X8) of the rapier and secant with this surface (8262).

Abstract: A gripper head for the insertion of weft threads on a gripper weaving machine as well as a gripper weaving machine with such a gripper head. The gripper head thread clamp for the weft thread is controlled in a contact-free manner and with high transfer reliability of the weft thread even in the machine center.

Abstract: A single-gripper loom (1) comprising: a receiving gripper (5) that is movable along a first sliding guide (6) through a weaving shed (10) from and to a gripping position (P2) outside the weaving shed (10) or close to a first opening thereof (10b) wherein said receiving gripper (5) receives one or more weft threads (2, 3), a weft selector (8), a weft feeder (12) to transfer the weft threads (2, 3) from the selector (8) to the receiving gripper (5), movable along a second sliding guide (7), between an intercepting position (P1) of the weft threads (2, 3), outside the weaving shed, and the gripping position (P2) wherein the receiving gripper (5) receives the weft threads (2, 3) from the weft feeder (12).

Abstract: The loom comprises: a first and a second fill yarn-holding conveyor rods (14,15), which are disposed to the left and the right of an opening formed by multiple side-by-side warp yarns (Wa) that run in one direction at a prescribed speed and which rods are repeatedly and simultaneously inserted into the opening toward the center of the weaving width and withdrawn; and a single fill yarn conveyor (16) that is selectively gripped by the ends of the rods that face same and is alternately held and conveyed by the first or second fill yarn-holding conveyor rod (14,15). By operating a first and a second rod-operating units (19,20), a first and a second gripping/releasing parts (17,18) are operated via the first and the second fill yarn-holding conveyor rods (14,15) to alternately transfer the fill yarn conveyor (16) at the center of the weaving width, and after the transfer, are shuttled between the entrance of the opening and the center of the weaving width.

Abstract: A gripper head of a weaving machine has a clamping device for clamping a band-shaped weft material to be inserted into a loom shed of the weaving machine. The clamping device includes a stationary clamping jaw and a movable clamping jaw that is loaded by a spring and movable about a rotation axis. Each clamping jaw respectively has a clamping surface. The movable clamping jaw is actuatable by a control device to open the clamping device. The gripper head includes a frame, and the clamping surfaces are arranged essentially outside of the frame, but the spring and the rotation axis are arranged inside the frame.

Abstract: A thread clamp (3, 103, 203), which comprises a stationary clamping part (4, 104, 204) and a movable clamping part (5, 105, 205), is mounted on a gripper head (1, 101, 201) for the insertion of weft threads (2) on a gripper weaving machine. For opening or closing the thread clamp (3, 103, 203), it is connected with a hollow body (6, 106, 206) that is expandable by pressurized air. A second expandable hollow body (8, 108, 208) is pressed together in such a manner so that an internal pressure builds up therein, by means of a control arrangement mounted on the gripper weaving machine. Moreover, a valve (9, 109, 209) is present on the gripper head, which valve is embodied as an automatically closing non-return or check valve. The valve (9, 109, 209) is opened by an increase of the internal pressure in the second expandable hollow body (8, 108, 208) or by contact-free transmission of signals or forces of an actuator (13, 113, 213) mounted on the gripper weaving machine.

Abstract: The machine (1) for making fabrics comprising yarns decorated with pearls (15) comprises a yarn holder (2) for feeding a warp yarn (3) to a weaving group (5) by aligning all of them onto the same plane by means of cords (7) controlling the feeding direction of the warp (3). The weaving group (5) comprises a reed (9) therethrough the warp yarns (3) pass and cooperating with a bar (11) for forming the fabric (8). The weaving cloth (5) comprises two pincers (13) suitable for inserting a weft yarn between the warp yarns (3). The bar (11) has an indentation (16) faced towards the reed (9) and placed at the passing area of the warp (14). The pincers (13) have a first jaw (18) faced towards a second jaw (19) with substantially triangular profile. The invention also relates to the fabric made with such machine.

Abstract: A gripper head (1) of a weaving machine comprises a clamping device (2) for a band-shaped weft material (8) to be inserted into a loom shed of the weaving machine. The clamping device (2) comprises a stationary clamping jaw (3) and a clamping jaw (4) that is loaded by a spring (5) and movable about a rotation axis (6), each clamping jaw respectively having a clamping surface (7), wherein the movable clamping jaw (4) is actuatable by a control means (9) for opening the clamping device (2). The gripper head (1) comprises a frame (10), wherein the clamping surfaces (7) are arranged essentially outside of the frame (10) and the spring (5) and the rotation axis (6) are arranged inside the frame (10).

Abstract: In a carrier rapier including a rapier head having a hook-shaped tip, a weft holding portion and a weft guiding portion are formed. The weft holding portion has a wedge-shaped gap formed by an opposing surface of a catch lever and a base surface at a turn-back portion of the carrier rapier. The weft guiding portion guides a weft from the exterior of the carrier rapier to the weft holding portion. In addition, a weft interfering portion is provided between the weft guiding portion and the weft holding portion. An angle ?2 formed by the base surface and the opposing surface at the weft interfering portion is less than a maximum angle ?1 formed by the base surface and the opposing surface at the weft holding portion.

Abstract: An insert rapier includes a weft-holding portion at a bottom portion of a rapier head. Rear and front walls are provided at a distal side of the rapier head with respect to the weft-holding portion and protruding from both sides of the bottom portion, thereby having a warp-dividing function. The insert rapier can guide a weft, which intersects with warps at a predetermined angle, to the weft-holding portion. The rapier head includes a tongue piece provided at the distal side with respect to the weft-holding portion, in a region between the weft-holding portion and the rear wall. The tongue piece has a distal tip located lower than the rear wall, and has an upper ridge gradually ascending from the distal tip toward a proximal side. The tongue piece is movable to a position above the rapier head or toward the proximal side.

Abstract: In a carrier rapier including a rapier head having a hook-shaped tip, a weft holding portion and a weft guiding portion are formed. The weft holding portion has a wedge-shaped gap formed by an opposing surface of a catch lever and a base surface at a turn-back portion of the carrier rapier. The weft guiding portion guides a weft from the exterior of the carrier rapier to the weft holding portion. In addition, a weft interfering portion is provided between the weft guiding portion and the weft holding portion. An angle ?2 formed by the base surface and the opposing surface at the weft interfering portion is less than a maximum angle ?1 formed by the base surface and the opposing surface at the weft holding portion.

Abstract: An insert rapier includes a weft-holding portion at a bottom portion of a rapier head. Rear and front walls are provided at a distal side of the rapier head with respect to the weft-holding portion and protruding from both sides of the bottom portion, thereby having a warp-dividing function. The insert rapier can guide a weft, which intersects with warps at a predetermined angle, to the weft-holding portion. The rapier head includes a tongue piece provided at the distal side with respect to the weft-holding portion, in a region between the weft-holding portion and the rear wall. The tongue piece has a distal tip located lower than the rear wall, and has an upper ridge gradually ascending from the distal tip toward a proximal side. The tongue piece is movable to a position above the rapier head or toward the proximal side.

Abstract: Thickness direction thread insertion needles (11) each include a proximal end portion (12) and an insertion portion (13), which is formed thinner than the proximal end portion (12) and is selectively inserted in laminated fiber layers (23). The insertion portion (13) includes a distal end and a needle's eye formed close to the distal end. A coating (15) is formed on the insertion portion (13). The coating (16) has a surface roughness of 0.1 ?m or more and 0.7 ?m or less in terms of the center line average roughness Ra, and improves the wear resistance of the insertion portion (13). The thickness direction thread insertion needles (11) are used in producing a three-dimensional fibrous structure.

Abstract: An apparatus (1) is presented for the insertion of a weft thread (2) into a shed (10) of a rapier weaving machine. The apparatus (1) includes a rapier tape (3b) movable in the insertion direction, a rapier head (3a) at the same and at least one guide part (5) which is provided at the rapier tape or at the rapier head as well as a plurality of guide elements (6.1-6.i+1) which cooperate with the guide part to guide the rapier tape or the rapier head in the shed, wherein the start of the guidance of the guide part by the guide elements is delayed until the rapier tip ( 3) is at a distance of at least 14 cm in the shed.

Abstract: A method for the insertion of a weft thread into a shed of a rapier weaving machine is presented in which the weft thread (3) is taken up by a bringer rapier (10) and fixedly clamped in the same by means of a thread clamp, is inserted into the shed by means of the bringer rapier and is taken up by a taker rapier. In the said method the clamping force of the thread clamp in the bringer rapier is additionally controlled during the weft insertion in such a way that the clamping force (F0) during the take-up of the weft thread and/or during the transfer of the weft thread is reduced relative to the clamping force (F1) in the insertion phase lying therebetween.

Abstract: A thread clamp for a rapier head (1) is presented which contains a clamping part (4) for firmly clamping a weft thread (3) and an actuator (5) for moving the clamping part (4). The actuator (5) includes a ferromagnetic core (12), an armature (11) and at least one winding (13) which is arranged on the core or armature in order to produce a magnetic field in the latter and to move the armature and the clamping part, which is operatively connected to the latter, with the core (12) having two limbs (12.1, 12.2) between which the armature (11) is movably arranged, and with each limb being provided with a permanent magnet (14.1, 14.2) in order to hold the armature at one of the two rest positions in the current-free state of the winding.

Abstract: Device for locking the connection of a heddle (40) to a harness cord (50), having a heddle side and a harness cord side. The device is composed of at most two different components, the device having a diameter on the heddle side and/or on the harness cord side which decreases towards the end. The device is releasable and recloseable, allowing the device to be reused. The components are made from a plastics material which has a high wear resistance. The device is provided over virtually its entire length with a continuous passage (4) for guiding a heddle and a harness cord.

Abstract: A thread clamp for a rapier head (10) for the firm clamping of weft threads (2, 2?, 2?, 2??) in a rapier weaving machine is presented. The thread clamp (1) has first and second holding members (3, 4) which can be pressed against one another in a clamping region (3a, 4a) in order to hold the weft threads. Moreover, one or more deflection elements (7, 7?) are provided at the thread clamp in order to deflect the weft thread or threads (2, 2?, 2?, 2??) and to increase the holding force, with at least one deflection element (7, 7?) being controllable.

Abstract: The weft introduction needle for a ribbon needle loom comprises a bent arm (20), which may be fixed at one end (22) to a drive element (24) of a ribbon needle loom and comprises a hook (28) at the other end (26), for registering an exposed thread loop. The arm (20) is provided with a guide piece (30) essentially over the whole length thereof, forming a longitudinal slot (32) with the arm (20) for accommodating at least one weft thread. At the end away from the hook (28), the guide piece is connected to the arm (20), by means of a connector piece (34). A guidance element (36) is arranged on the side of the arm (20) facing away from the guide piece (30) in order to improve the guiding of a weft thread loop, extending over only a section of the length of the arm, starting from the vicinity of the hook (28), whereby the guidance element (36) forms a diverter point (35) in the region away from the hook (28), for diverting the free flare (38) of the weft thread loop (6).

Abstract: A catching device (1) for holding an inserted weft thread in a rapier weaving machine having at least one rapier (6), which is movable along a rapier track (6a), includes a holding channel (5) which can be mounted in a stationary manner on the rapier weaving machine in order to take up a thread end of the inserted weft thread (9) and to hold it. In addition, the catching device includes a deflection nozzle (3) which can be mounted in stationary manner on the rapier weaving machine in order to deflect the thread end of the inserted weft thread to the holding channel (5).

Abstract: A yarn carrier (30) for presenting a selected yarn (16) to a pair of gripper jaws (26,28). The yarn carrier (30) includes a yarn guide passageway (14) defining a path along which the selected yarn (16) is longitudinally guided. The passageway (14) has a yarn inlet end, a yarn outlet end and adjacent to the yarn outlet end yarn guides (32) to constrain the tail of the yarn (YT) against lateral deflection in a longitudinal direction of the yarn carrier (30). The yarn guides (32) are depressible on contact with open gripper jaws (26,28) to enable the gripper jaws (26,28) to grip the yarn tail (YT).

Abstract: A method for the insertion of a weft thread into a shed of a rapier weaving machine is presented in which the weft thread (3) is taken up by a bringer rapier (10) and fixedly clamped in the same by means of a thread clamp; is inserted into the shed by means of the bringer rapier and is taken up by a taker rapier. In the said method the clamping force of the thread clamp in the bringer rapier is additionally controlled during the weft insertion in such a way that the clamping force (F0) during the take-up of the weft thread and/or during the transfer of the weft thread is reduced relative to the clamping force (F1) in the insertion phase lying therebetween.

Abstract: A thread clamp for a rapier head (1) is presented which contains a clamping part (4) for firmly clamping a weft thread (3) and an actuator (5) for moving the clamping part (4). The actuator (5) includes a ferromagnetic core (12), an armature (11) and at least one winding (13) which is arranged on the core or armature in order to produce a magnetic field in the latter and to move the armature and the clamping part, which is operatively connected to the latter, with the core (12) having two limbs (12.1, 12.2) between which the armature (11) is movably arranged, and with each limb being provided with a permanent magnet: (14.1, 14.2) in order to hold the armature at one of the two rest positions in the current-free state of the winding.

Abstract: A controlled thread brake for braking a weft thread (10) in a weaving machine is presented which comprises a brake band (3) and a brake body (2), with the thread brake (1) additionally comprising an electromagnet (6) and a rotatable or rocking lever (4) which can be moved by means of the electromagnet. The lever (4) is connected to the brake band (3) so that a pulling force can be exerted in the longitudinal direction of the brake band by means of the electromagnet (6) in order to be able to press the latter against the brake body (2) for braking the weft thread.

Abstract: This invention concerns a weft thread clamp with two jaws (1), (2) that can be moved to an opened and closed position, with at least one jaw (1) being directly moveable to the closed position via fluid pressure. The moveable jaw is preferably (1) a moveable unit, preferably made of a light material or in a compact form, which is moveable as a complete unit under the influence of the fluid pressure. Such a weft thread clamp is more reliable and simpler, and has a quicker reaction speed than the known pneumatically controllable weft thread clamps. This invention also concerns a system for the presentation of weft threads to a weaving machine equipped with one or more such weft thread clamps, as well as a weaving machine equipped with such a presentation system.

Abstract: A patterned scarf having a first fabric layer and a second fabric layer which are interwoven along the edges. The scarf has colors and/or patterns which are formed by weft threads their inserted spaced-out between warped threads of the same color. The warped threads are a textured yarn composed of chemical fibers.

Abstract: A thread section of a weft thread is held precisely ready for a receiving rapier in a feed rapier on a rapier loom despite the effects of retarding forces. Deflections of the thread section by the head of a receiving gripper are compensated for, whereby the feed rapier is provided with a thread clamp on the side facing the feed device for the weft thread, which releases on tension forces occurring in the thread section and permits a deflection of the thread section.

Abstract: A gripper for an Axminster weaving machine comprises at least two clamping parts (2,3) connected to one another and moving with respect to one another for clamping and releasing a pile yarn. The clamping parts (2,3) are interconnected by means of intermediate springy elements (4a,4b,4c). The clamping parts (2,3) are preferably provided above one another in their plane of movement.

Abstract: A stop element (24) is used to open a gripper clamp (20) of a weaving machine (3) and is associated to the gripper clamp's stop piece (21) and the stop element during the slow mode operation of the weaving machine is transversely moved into the path of the gripper clamp's stop piece (21) after the clamp already has moved into the vicinity of the stop element (24).

Abstract: A device for driving and guiding a rapier of a weaving machine, comprises a rotatable drive wheel (1) provided for driving a rapier rod (14) in a back and forth movement and a guide channel formed by adjustable guide bodies (10), (11) in order to guide the said rapier rod (14) according to a guide path in co-operation with the drive wheel (1). The guide bodies (10), (11) are part of a guide unit (9) which, as a whole, is adjustable in order to modify the distance between the guide path and the rotation shaft (2) of the drive wheel (1), and where the drive wheel (1) is continuously adjustable in the longitudinal direction of its shaft (2). With this device the clearances of the rapier rod with respect to the drive wheel can be performed easily, rapidly and with great precision, so that this device is able to work with a minimum development of heat and wear.

Abstract: The gripping collet (10) for grasping a thread during the preparation of a woven seam is arranged at the end of a draw-through gripper and has a first and a second clamping element, the first and the second clamping element (20, 24) being able to be clamped against each other for grasping the thread using a pneumatic cylinder. The first clamping element has two cylinder surfaces (20) at a distance from each other and the second clamping element has one cylinder surface (24). The arrangement of the cylinder surfaces (20, 24) is such that the axes of the cylinder surfaces lie parallel to each other and essentially at right-angles to the axis of the pneumatic cylinder and, in the extended state of the pneumatic cylinder, the cylinder surface (24) of the second clamping element lies between the two cylinder surfaces (20) of the first clamping element.

Abstract: A weaving machine gripper housing, includes edges made of a sheetmetal forming the housing and includes edge yarn guide elements at the edges which have a thickness larger than the adjacent sheetmetal thickness. The thicker edge guide elements protect yarn engaging the edges during gripper use.

Abstract: A loom for weaving three dimensional woven structures which include interwoven bias fibers and at least one integrally woven junction. The loom includes bias fiber holders, bias shuttles, and independently controllable bias arms to interweave the bias fibers. Each bias fiber holder holds a bias fiber under tension. The bias shuttles may releasably grip a number of the bias fiber holders and translate them horizontally between a plurality of predetermined horizontal positions. Each bias shuttle is at a separate vertical position. At least one bias shuttle translates above the shed and at least one bias shuttle translates below the shed. Each independently controllable bias arm may releasably grip one of the bias fiber holders and translate it vertically, at one of the predetermined horizontal positions, with a range of motion extending at least between two of the bias shuttles.

Abstract: The invention relates to a receiving gripper for a rapier weaving machine, the gripper being fitted at one end with a clamping hook (12) including a clamping surface, the hook being paired with a mating clamp face of a head (15) of a pivotably supported, two-arm lever (14), wherein both the end face of the head (15) and the clamping hook (12) are fitted with guide elements (18, 19) guiding the lever head in the circumferential direction relative to a pivot pin for the lever.

Abstract: Thread clamping arrangement for a carrier gripper of a rapier loom wherein the arrangement includes a rigid support coupled to a lateral wall of a body of the carrier gripper. Each of an elongated first clamping element and an elongated second clamping element are provided. A clamping gap is formed by the first and second clamping elements. A magnet is included that exerts an attracting force on each of the first and second clamping elements.

Abstract: The invention relates to a receiving gripper for a rapier weaving machine, the gripper being fitted at one end with a clamping hook (12) including a clamping surface, the hook being paired with a mating clamp face of a head (15) of a pivotably supported, two-arm lever (14), wherein both the end face of the head (15) and the clamping hook (12) are fitted with guide elements (18, 19) guiding the lever head in the circumferential direction relative to a pivot pin for the lever.

Abstract: A stop element (24) is used to open a gripper clamp (20) of a weaving machine (3) and is associated to the gripper clamp's stop piece (21) and the stop element during the slow mode operation of the weaving machine is transversely moved into the path of the gripper clamp's stop piece (21) after the clamp already has moved into the vicinity of the stop element (24).

Abstract: Thread clamp, in particular for a weaving machine, which at least consists of an actual clamp (2) with at least two clamping parts (34) between which a thread (5) can be clamped, as well as of actuation means (6) for moving said clamping parts (3-4) in mutual respect between at least two positions, a closed position, whereby the clamping parts (3-4) are pushed towards each other, and an open position whereby the clamping parts (3-4) are situated at a distance from each other, respectively, characterized in that said actuation means (6) comprise at least a pneumatically actuatable part (7) for bringing the clamp (2) into at least one of said two positions, which part can be actuated by means of a negative pressure, more particularly vacuum, fed thereto.

Abstract: In accordance with the invention a thread carrying apparatus is proposed with a thread (2) lying in contact with or passing along the thread carrying apparatus with friction in the operating state. The thread carrying apparatus includes excitation means (3) for producing oscillations which reduce the frictional force between the thread (2) and the thread carrying apparatus. In this arrangement a resonator body (4) is provided with the thread (2) lying in contact with or passing along the resonator body with friction in the operating state. The resonator body (4) is designed in such a manner that the excitation means (3) produce resonant structural sound oscillations in the resonator body (4).

Abstract: A receiving gripper for a rapier loom, wherein at least the moving part is made of a ceramic material.

Abstract: The present invention related to improvements in weft-carrying grippers for weft continuous feed weaving looms and in means for guiding their movement through the shed.

Abstract: Thread clamping arrangement for a carrier gripper of a rapier loom wherein the arrangement includes a rigid support coupled to a lateral wall of a body of the carrier gripper. Each of an elongated first clamping element and an elongated second clamping element are provided. A clamping gap is formed by the first and second clamping elements. A magnet is included that exerts an attracting force on each of the first and second clamping elements.

Abstract: A yarn clamp (13) for a gripper of a rapier weaving machine includes two clamp elements for clamping a filling yarn (2). Each clamp element is fitted with one clamping segment (20, 25) and the segments are located opposite each other. The clamping segment (20) of at least one of the clamp elements is adjustable by means of an adjustment device (30) relative to the other clamping segment (25) and relative to the main body (18) of the one clamping segment.

Abstract: A bringer gripper for looms without shuttles, where the weft yam is placed in an upper notch and in a gripping organ, particularly suitable for the simultaneous presentation of one or more wefts to the warp inlet and to the taker gripper, in which the upper notch is shaped with a multiple number of throats of different axial length. The weft yarns fit into the bottom of these throats and are essentially offset in the gripper's direction of motion.

Abstract: A receiving gripper for a rapier loom. The gripper includes a hook (3) and a clamping element (5) cooperating with the hook. The clamping element (5) is guided along a curved guide path (13) between an open position and a clamping position by a guide (14, 15) along a curved guide path (13). The guide path is directed to the hook's clamping surface (4) when in the zone before the clamping position and when in the zone of clamping position including a section in which no transverse displacement is superposed on the motion of the clamping element (5).

Abstract: The gripper comprises a housing (1), an actuator (2), a thread clamp (3) and a connecting section (11) for a gripper band. The actuator can be operated electrically and controlled via induction coils (71) in such a way that the clamping force and the clamping cycle of the thread clamp are adjusted in accordance with the physical and/or textile data of the weft to be inserted.

Abstract: A tubular housing is used for a gripper-loom's feed gripper. The feed gripper includes a metallic tubular housing formed of a single bent metal plate. The single bent metal plate includes at least two mutually overlapping segments that are rigidly joined to each other.

Abstract: A gripper-loom drawing gripper for receiving a yarn supplied by a yarn feeder and resting on a deflection guide, the gripper serving to position the yarn and carry it into the shed. The drawing gripper is configured to define a longitudinal cavity extending from its forward end facing a filling to be received and positioned by the gripper to its opposed rearward end. The cavity of the gripper faces towards and partially encloses the deflection guide. The forward tip of the gripper includes an inclined surface for guiding a filling to a positioning device on the gripper, and a yarn clamp is also carried by the gripper. The gripper includes additional receiving and positioning devices for a filling to be inserted in the loom shed.