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: 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 method for weaving a fabric having: a backing fabric (100, 200) formed by backing warp yarns, having binding warp yarns (101, 201) and first and second weft yarns (3, 4); one or several tension warp yarns (102, 202, 103, 203); and non-pattern forming and/or pattern forming pile warp yarns (7, 6), the pattern forming pile warp yarns (6) form pattern forming pile burls (6a), and each pattern forming pile burl (6a) is interlaced round at least one third weft yarn (5) situated at the back of the fabric (1, 2) with respect tote tension warp yarns (102, 202, 103, 203).

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: A novel method of weaving is described wherein warp and weft are supplied in the form of tapes, and not yarns. In at least one embodiment, the method, which is preferably carried out in vertical format, essentially includes feeding positively flat tensionless warp for shedding and taking-up; selecting, feeding positively and inserting weft tapes of different widths and thickness by gripping in its fore end in flat condition; depositing inserted weft at fabric-fell in a flat condition without beating-up; and taking-up the woven material that comprises either same or different widths of flat wefts. The warps and wefts, preferably of partially stabilized type of fibrous tapes, can be overfed in a tensionless, positive and controlled manner when required to make the fibres of constituent fibrous tapes occur non-linearly in the form of wave/texture during weaving.

Abstract: The present invention relates to a method for face-to-face weaving of a pile fabric on a weaving machine, pile forming pile warp yarns (6, 7, 8, 9, 16, 17, 18, 19) being interlaced alternately around a weft yarn (1) in the upper fabric and around a weft yarn (1) in the lower fabric and non pile forming pile warp yarns (6, 7, 8, 9, 16, 17, 18, 19) being interlaced in one of the backing fabrics in accordance with a predetermined pattern, the said weaving machine comprising at least three weft insertion means and that at each weft insertion cycle only one weft yarn is inserted, the non pile forming pile warp yarns (6, 7, 8, 9, 16, 17, 18, 19) to be interlaced are positioned on a different level (N1, N2) and, in successive series of four weft insertion cycles (a, b, c, d) each time during two successive weft insertion cycles one weft yarn (1) being inserted (a, b) under the two levels (N1, N2) and one weft yarn (1) being inserted above the two levels (N1, N2) and each time, during two other successive weft insert

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 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: A device for connecting an electrical load to an insulated power supply cable, comprising conducting elements that can be electrically coupled to an electrical conductor of an insulated cable and form at least one contact for connection to a connector for an electrical load; the conducting elements are accommodated within an outer enclosure made of electrically insulating material constituted by shells that can be fastened together. The device further comprises safety elements that are adapted to prevent the connector from being recoupled to the contact once uncoupling has been performed inside the outer enclosure.

Abstract: An apparatus for the selective feeding of one of a plurality of weft threads (1) to a gripper projectile, which moves along a projectile path (2), includes a plurality of displaceable feeders (3) each having a feeder clamp (7) for retaining a respective weft thread (1) in position for pick up, a knife (4) for cutting off the weft thread (1) after it has been drawn into the weaving shed by the gripper projectile, and a clamp for picking up the weft thread (1) from a feeder and drawing the weft thread (1) transversely across the projectile path (2) for engagement by the gripper projectile. The clamp is mounted on a rotatable ring (6) which is disposed perpendicular to the projectile path (2) which extends through the ring.

Abstract: A mechanical loom including a shooting device for shooting a shuttle into the shed from an initial position into a receiving position at a transfer device. The shuttle is connected through a flexible return element to a return member of a return device, so that the shuttle can be returned into the initial position and, simultaneously, a weft thread can be pulled into the shed. The return device includes a release device which releases the return element from the return member when the shuttle has reached the initial position. The mechanical loom is of simple construction and low weight. The weft thread is pulled into the shed in a careful manner, so that the weaving machine has a high efficiency.

Abstract: A process for inserting weft lengths into the shed of a loom including a metering-delivering device that supplies a storage member for storing a predetermined length of yarns. The yarn length is caught between the outlet of the delivering device and the storage member in order to be inserted into the shed formed by the warp yarns. The yarn length is then cut and operationally gripped close to the selvedge of the fabric. The cut end of the yarn is held over before being re-introduced in the storage member for the next insertion, the cut end of the yarn being held over in an independent circuit outside the path joining the outlet of the delivering device to the inlet of the storage member.

Abstract: The invention provides a novel loom and method for weaving fabrics in which at least the weft comprises stiff strands for example in the form of tapes or bands. The weft strand (41) is frictionally gripped at one side of the warp array (40) and intermittently pushed through the shed to insert successive lengths of weft. In a preferred modification, a hollow guide (22) is advanced through the shed in the opposite direction to the pushing of the weft strand, the free or previously severed end of the strand is pushed into the hollow guide, for example by friction wheel drive (3),(31) mounted on sley (13), and the guide is retracted in the same direction and at the same time as the strand is pushed through the shed, such that the free end of the weft is inside the guide while it passes through the shed.

Abstract: The invention relates to a process for the insertion of a weft yarn in the shed of a weaving machine in which said weft yarn is drawn from a reserve located outside the shed to be inserted in the form of a loop of which one of the ends is fastened and the other thrown, wherein an air stream is blown in the shed in the direction of insertion of the weft, the speed of this air stream being less than or at the most equal to the speed of the thrown end, the action of this air stream being such that it tends to maintain the two ends of the loop separate from each other.

Abstract: The invention relates to a device for the preparation and insertion of at least one type of weft yarn into the shed of a weaving machine. The said device comprises a yarn metering-delivering member feeding a storage chamber used for temporarily storing a length of weft yarn before its insertion into the shed. The introduction of the weft yarn into the storage chamber and its extraction to be thrown by means of rotating rollers are effected via a single guiding channel which comprises a zone situated between the throwing rollers and close to the gripping line, said zone overlapping laterally with respect to the rollers and comprising a continuous longitudinal slot.

Abstract: A device for the insertion of a weft thread into the shed of a weaving machine is equipped with a delivery system for depositing a pick of weft thread from a weft thread storage space into a thread collecting unit; an insertion mechanism, placed between the delivery system and the thread collecting unit, which is adapted to intermittently insert, in synchronism with the cycle of the loom, the pick of weft thread into the shed between the warp threads; and a novel feeding system for feeding the pick of weft thread from the thread collecting unit to the insertion mechanism. The feeding system may be adapted to move unidirectionaly or alternately, or continuously or intermittently. This system is equipped with gripping devices that move through a predetermined path which is outside the trajectory of the insertion device. As the grippers move through their path the pull the pick or weft thread such that it is fed into the insertion mechanism.

Abstract: A method and apparatus for forming a yarn reserve to feed picks to a loom in which a given length of filling yarn is accumulated in a storage chamber, and the filling yarn is retrieved and introduced into a shed by propelling means implemented by a single guidance conduit. The propelling means also acts as a tensioning element for the yarn when it is propelled.

Abstract: A fill wire feeder for feeding weft wire to a wrap shed from a lay beam includes a weft wire feeding mechanism disposed outside of the wrap shed and mounted on one end of the lay beam. The mechanism includes two pairs of coacting rotatable rollers, the nips between each pair of which lie in the same plane to define a linear travel path for the weft wire guided therebetween and drive means for rotating at least one roller of each of the pairs.

Abstract: A shuttleless loom of the type having unidirectional weft thread carriers, comprising a device for throwing at least one said carrier, the device including a guide defining a closed path one portion of which passes through the shed and another returns below the shed. The guide also includes two arcuate portions at opposite sides of the loom and a circular guide portion substantially tangent to the carrier throwing path. Within the circular guide portion there is rotatably arranged a flywheel provided with an entraining member for the carriers. There is further provided a door which is controlled to throw out of the circular guide portion the carriers after they have made at least one complete revolution within the circular guide portion. The carriers are of substantially cylindrical configuration and adapted to accommodate circumferentially the weft thread as positioned at the exit of the circular guide portion in a direction substantially perpendicular to the carrier axis.