Abstract: An apparatus for manipulating a material is provided. The apparatus may comprise one or more stator coils arranged in a three-dimensional configuration, and a surface on which at least one carrier is configured to move. The stator coils of the apparatus may be configured to generate an electromagnetic field for driving the carrier on the surface to manipulate a material.

Abstract: A weft insertion system includes at least one rapier provided with weft yarn clamping means for drawing a weft and a reed provided with dents made of a magnetic material, and wherein the rapier has at least one permanent magnet whose direction of polarization extends along a direction which is perpendicular to a longitudinal axis of the reed dents when the reed is in a back position and to a translation direction of the rapier, the at least one permanent magnet exerts an attractive magnetic effort (E, E?) between the rapier and the dents of the reed and the reed has a variable magnetic permeability along its longitudinal axis, and the rapier has a lateral face oriented towards the reed and the at least one permanent magnet has a direction of polarization perpendicular to the direction of travel of the rapier and secant with the lateral face.

Abstract: A weaving machine is constructed to use a magnetic traction device to reciprocate the shuttle in moving weft threads over warp threads at a high speed without producing noise and preventing direct contact between parts.

Abstract: A weaving loom has a transmission, which includes a driving wheel, a driven wheel, an endless driving belt that extends around the driving wheel and the driven wheel, and at least one magnet unit, which is secured to an inside surface of the belt for attracting and driving a shuttle to circulate on a machine frame inside the belt.

Abstract: A method for weaving a sheet member by using lateral and longitudinal strips. A portion of the longitudinal strips are disposed in an alternating way relative to the other longitudinal strips and are moved upwardly and downwardly alternatively for forming a gap and for engaging with a lateral strip. The longitudinal strips are moved upwardly and downwardly by magnet members. A number of further magnet members engage with and move the lateral strip to one end of the longitudinal strips so as to weave the sheet member which may be used as a table top or a seat surface.

Abstract: An apparatus for driving a carriage of a shuttle in a weaving loom consists of a housing, a driven shaft rotatably mounted in the housing and a driving wheel rotatably mounted in the housing and having an axis of rotation orthogonal to that of the driven shaft. A spool is fixedly mounted on the driven shaft. A wire has an end fixedly attached on the spool and another end connected to a carriage. A plurality of rollers are attached on a circumferential periphery of the driven shaft. One of the rollers is engaged with one of a plurality of guiding channels defined on a circumferential periphery of the driving wheel. The guiding channels are so configured that when the driving wheel rotates, the driven shaft can repeatedly have the following modes of movement: firstly remaining in a static state, rotating and accelerating in a first direction, decelerating, staying in another static state, rotating and accelerating in a second direction, decelerating, and finally returning to the first static state.

Abstract: A sley for a loom has a slot in which the magnet of a shuttle and/or the magnet of a magnetic force-generating device extends, so as to minimize the distance between the magnets of the shuttle and the magnetic force-generating device. This results in an increase in the magnetic force of attraction without having to use a higher power magnetic force generating device. Further, the shuttle is synchronized with a shuttle driving member of the magnetic force-generating device.

Abstract: A picking apparatus includes a sley with a reed assembly fixed thereon, a raceway formed in the upper surface of the sley, a magnetic force-generating device for generating a magnetic force which moves along the raceway, and a shuttle which is attracted by the magnetic force so as to fly along the raceway. The sley has a slot formed therein along the raceway. The shuttle has an engagement hole. The magnetic force-generating device has an extendable and retractable gripping unit which can retract into the engagement hole of the shuttle immediately after the completion of a picking motion. Therefore, the magnetic force-generating device can attract and drive the shuttle during the picking motion. It can be appreciated that the gripping unit can interlock the shuttle and the magnetic force-generating device from the time of the completion of a picking motion until the time of the commencement of the next picking motion.

Abstract: To provide for positive guidance of shuttles in a multi-system traveling shed weaving loom, in which the shuttles move continuous, endless loop path, having a straight portion (15a) and two essentially semi-circular curved return path portions (15b), the curved return path portions are defined by a pair of guide strips or rails (32, 42) spaced from each other by a sufficient distance to accomodate the shuttles therebetween as they travel in the curved path, the inner guide strip (32) being formed of non-magnetic material. The shuttles carry permanent magnets (36) and travelers (16) carry, on a leaf spring (30), drive elements (25) having permanent magnets (26) interacting with the magnets (36) on the shuttles, the drive elements being pressed against the inner surface of the non-magnetic guide strip in the curved portion (15b) of the path and against a guide reed leaf (10) in the straight portion of the path.

Abstract: A weaving loom with a magnetic shuttle comprised of an endless loop for guiding the shuttle to circulate and fly through the shed of warp and a magnetic means constructed as a structure which generates a magnetic force circulating along the endless loop for attracting and driving the shuttle.

Abstract: A shuttle unit for a loom includes a shuttle and means forming a reversible electromagnetic field arranged to act on and to reciprocate the shuttle and formed as a linear motor with one or two stators.

Abstract: An apparatus for inserting weft wires in flat weaving power looms wherein a shuttle is moved by carriages which are disposed above and below the shed defined by the warp wires and which are guided by magnetic means and wherein the shuttle is a gripper shuttle, the shuttle and the carriages include permanent magnets, and the drive means for the carriages is one of a stepping motor, a speed-controlled three-phase current motor and a disk rotor motor which effects positioning of the carriages and thus of the gripper shuttle at the weft transfer points by a holding force.

Abstract: Each shuttle of a multiple-shuttle weaving machine is provided with at least one shuttle magnet. A drive unit acts upon each shuttle magnet to effect positive magnetic transport of the shuttle through the length of the shed, without physically contacting the shuttle. The shuttle monitoring device includes a magnetic-field-dependent resistor for each shuttle to be monitored. The magnetic-field-dependent resistor is moved in parallel to and in synchronism with the drive unit for the shuttle and moves in a region where the resistor is influenced by at least one pole of the shuttle magnet. A machine shut-off device is connected to the resistor and is operative for shutting off the drive units for the shuttles of the weaving machine in response to a resistance change of the magnetic-field-dependent resistor indicative of lack of proper shuttle movement.

Abstract: The present invention relates to an undulated shed-type loom for transporting shuttles filled with filling thread through sheds by means of electromagnetic fields acting on the shuttles and having means for beating up the filling threads introduced against the fell of the cloth, the beating-up of the filling threads taking place synchronously with the transportation of the shuttles over the width of the loom.