Abstract: In a weaving machine, the shuttles of the weaving machine are transferred over and across the warp threads of the machine. The method and apparatus have the object of preventing factors which adversely affect the weave result from occurring at high shuttle speeds. One or more air or gas streams (flows) are conveyed from the undersides of the warp threads and upwardly via the warp threads to their upper sides. With the upwardly conveyed air or gas stream, each shuttle is given a lifting movement which prevents burn damages, deformations and wearing of the warp threads due to a high shuttle speed.

Abstract: A slay and reed assembly for use on textile machines includes a reed having dents disposed in an upper and lower channel. A reciprocating motion slay with clamping device is used to carry the reeds and moves the reeds towards and away from a fabric fell line wherein the dents beat-up filler yarns into the fabric fell line. The clamping device includes a recess for receiving the lower channel of the reed. The recess has an essentially vertical front face that is at an angle of essentially 90.degree. with the fabric fell line when the slay is in the beat-up position. The reed is received within the slay so that the dents are disposed to form an angle greater than 90.degree. with respect to the fabric fell line when the slay is in the beat-up position and the vertical front face of the clamping device is perpendicular to the fabric fell line.

Abstract: A weaving loom for producing at least one woven fabric web (9) with at least one laid-in selvage includes a weft thread cutting device (23) and an associated selvage laying-in device (14). The cutting device and the laying-in device are mounted relative to the loom machine frame so as to be adjustably movable across the width of the loom along a spreader table (11) with its associated spreader devices (10, 12, 26) and then selectively fixed at any desired width-wise position. The cutting device and the associated laying-in device can be arranged to be independently adjustable, or can be mounted on a common support member, so as to be adjustable in common or in unison with each other across the width of the loom.

Abstract: In the method, a reed (3) for a weaving machine is continuously driven from a drive means (2) and the kinetic energy of the reed is stored in order to reduce the drive energy. The apparatus comprises an energy storer (1) and a drive means (2) in order to move the reed (3) back and forth. The matched oscillatable system formed by the energy storer and the reed reduces the drive torque at the uniformly rotating drive means whereby a reduction of the power consumption results.

Abstract: A weaving loom with a sley having a defined weaving range, is provided with at least one first and one second sley leg (21; 22), respectively, for supporting the sley (2), the sley legs being arranged in the form of a deformable rectangle with hinge points at (A, B, C, D), and with a knee mechanism (10) for driving the sley (2). The knee mechanism is rotatably connected to the sley leg (21), to the top side thereof, using a connecting rod (6), the sley legs being connected, at their respective base side, to a first and second reed rotary shaft (23; 24), both the reed rotary shafts (23; 24) running mutually parallel and being mounted on a cross girder (4).

Abstract: A full width power loom which produces flat woven paper machine webs and other articles with warp and weft threads and which has a width more than 6 meters has a sley reciprocable in a direction of warp threads, a thread introducing element formed as a projectile, a shooting end catching mechanism for the projectile, and guiding elements for guiding the projectile. The guiding elements exclusively guide the projectile and are movable synchronously with the sley.

Abstract: A method for forming an airbag fabric for use in protecting vehicle occupants during a collision. The airbag fabric includes at least a portion of fabric woven by water-jet weaving yarns without chemical sizing compounds thereon at weave constructions comparable to those available by traditional Rapier weaving processes.

Abstract: A drive system for a weaving loom includes at least one four-pivot three-link drive or preferably two such drives for transmitting drive power from a main loom shaft through a cam drive to a slay shaft coupled to the cam drive through the four-pivot three-link drive. The use of two four-pivot three link drives permits operating the weaving loom selectively for producing terry cloth and/or smooth fabric. Each of the four-pivot three-link drives (DL, DR) has four pivots or journals (A, B, C, D) and three links (24, 38, 43; 25, 40, 44). Each four-pivot three-link drive cooperates with a roller carrying cam follower (15) that is controlled by an eccentric cam assembly (7). Both four-pivot three-link drives effectively operate the slay shaft (46) of the loom. A control and engagement mechanism (33, 54) provides for the switching from one four-pivot three-link drive to the other and vice versa, whereby a switch-over from the production of one type of fabric to the other is facilitated.

Abstract: A method for weaving airbag fabric for use in protecting vehicle occupants during a collision. The airbag fabric includes at least a portion of fabric woven with unsized warp and fill yarns by water-jet weaving at a weave construction of at least 47 warp and fill threads per inch comparable to that available by traditional Rapier weaving machines.

Abstract: A power loom, particularly for weaving of sieves or screen fabrics, has a fabric batton, a fabric batton drive, a shaft drive, and a shuttle drive. The fabric batton drive includes a program-controlled servo motor, and a transmission located between the servo motor and the fabric batton.

Abstract: A device for stretching a weft thread in weaving machines includes a stretching nozzle mounted on the sley of the weaving machine and a blower device for removing weft threads from the stretching nozzle. The blower device is mounted on the sley near the stretching nozzle.

Abstract: A method and apparatus for weaving a thick fabric. The method comprises the steps of providing a plurality of vertically stacked layers of textile weave, and weaving a set of wefts into the layers of textile weave. This weaving step, in turn, includes the steps of, for each of the plurality of layers, (i) forming a warp shed from the textile weave of the layer, and (ii) inserting one of the wefts into the formed warp shed. This weaving step is repeated a multitude of times to form the thick fabric. Each of the layers of textile weave forms a cloth fell; and the method of this invention further includes the step of vertically moving the layers of textile weave to position the cloth fell of each of the layers at a standard pre-selected weft inserting position when one of the wefts is inserted into the warp shed formed in that layer.

Abstract: A rapier loom has rapier heads which are moved by picking tapes into an open shed. Spacing elements are provided for the rapiers to ensure that when the shed is fully opened, a space is present between the tape and the bottom shed to reduce frictional contact between the warp yarns and the picking tape edges when the shed closes. The spacing elements can be in the form of slidable members which are disposed on the underside of the rapier head and/or in the form on spacing teeth which are secured to the sley and which can enter the shed between the warp yarns of a bottom shed.

Abstract: A shuttleless loom has a pair of inserters each having a head provided with a respective weft-yarn gripper and movable from respective sides of a warp therethrough to an advanced position in a central warp region with a weft yarn held in the gripper of a one of the inserters and a mechanism effective on the grippers in the central region to open the gripper of the one inserter and thereby transfer the yarn held thereby to the gripper of the other inserter so that the other inserter can pull the weft yarn the rest of the way through the warp. A support and guide system for the inserters has respective guide and support elements in the central region for the inserters laterally and longitudinally engaging same and forming at least one support surface positioned underneath the head of the respective inserter, and respective deflectors on the elements for spreading the warp at the support surfaces so that the warp does not come between the heads and the respective support surfaces.

Abstract: A gripper loom is equipped along its reed or slay beam with a plurality of compartments formed by separation walls extending in parallel to each other and in parallel to the lower shed forming warp threads which pass through these compartments. The upper edges of the separation walls are aligned with each other and with a guide surface of the gripper rods so that the upper edges form extension guide surfaces for the gripper rods. Thus, the lower shed forming warp threads do not interfere with the proper motion of the gripper rods.

Abstract: An air jet weaving loom is equipped with at least one expander element and a spreader table, whereby the spreader table surrounds a spreader in a trough and has an extension (8) in a forward fabric guidance area pointing toward the middle of a weft thread insertion channel, so that the top surface of the extension increases the fabric supporting surface of the spreader table. One expander element (20) is located in the spreader table (7) in a transition region between an edge of the trough of the spreader table (7) and the extension (8). Another expander element (21) may be located along an exit edge of the trough of the spreader table. Both expander elements (20, 21) have a fabric expander profile that extends at least along the margin zones of the fabric.

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 guide device for a web of material at a point of a textile machine, preferably a weaving machine, at which the web of material is produced. The guide device includes a first guide strip with a guide edge which first guide strip is arranged subsequent to the point at which the web of material is produced and a second guide strip with a guide edge which second guide strip is arranged subsequent to the first guide strip. The guide strips extend in each instance along the entire width of the web of material and overlap one another in such a way the web of material is guided at least approximately in an F-shaped manner. The guide edge of the second guide strip is formed by a rotatable round bar. The rotatable round bar is arranged in a loose manner in such a way that is is supported, under the influence of the tensile stress of the web of material, along the web of material at the first guide edge and in direct contact at the end face of a guide element of the second guide strips.

Abstract: A mechanism for mounting a part on the sley of a weaving machine includes a holder in which a relay nozzle of the weaving machine is mounted, a groove extending over the length of the sley, a clamp to be mounted in the groove and having on opposite sides two mutually inclined gripping faces; and screws which fit through openings in the holder and which act on the clamp to cause the clamp to draw the holder against the sley as the screws are tightened, thereby producing a gripping force in both gripping faces. The holder, when mounted, is clamped on at least one side between a corresponding gripping face of the clamp and a lateral side of the groove.

Abstract: The reed of an air jet loom has a passage for guiding the weft yarn to be picked which in cross-section is trough-shaped with substantially parallel walls and a base which extends transversely to the walls. The cloth support extends so far into the weft-guiding passage that the shortest distance between the weft-guiding surface and the passage base is less than one-third of the average distance between the passage walls. Consequently, the cloth is guided so accurately between the weft-guiding passage and the cloth support during the beating-up of the weft yarn that a very uniform fabric is produced.

Abstract: A fabric which contains warp threads made of a delicate material is produced on a loom which includes a main reed and auxiliary end reeds at opposite ends of the main reed and which are independently operable with respect to the main reed. The warp threads made of delicate material are extended through the main reed and warp threads of a more robust material are extended through the auxiliary end reeds. As each filler (weft) thread is inserted in a shed the auxiliary end reeds are moved to beat the associated portions of the weft threads. Only after a plurality of weft threads have been inserted is the main reed moved to beat the associated portion of the weft threads, thereby reducing the frequency of movement between the dents of the main reed and the delicate warp threads and thereby reducing frictional destruction thereof.

Abstract: A beat-up mechanism for a weaving loom includes a relatively movable indexing reed and beat-up reed adjacent each other and arranged to transport weft threads adjacent the fell of the fabric and then beat-up the weft threads into the fell by means of beat-up fingers inserted between warp threads. The indexing and beat-up reeds each are constructed as modular units and include multiple, parallel fingers having narrow tip portions and wider root portions, whereby the wider root portions of one reed maintain the warp threads spaced apart for insertion of the tip portions of the other reed during weft transfer. The indexing and beat-up reeds are particularly useful in a multi-shed weaving loom wherein multiple sheds are progressively moved toward the fell of the fabric during the weaving operation with insertion of a pick in each shed. The indexing and beat-up reeds, moreover, include a guiding arrangement whereby the reeds are positively maintained in lateral alignment during weft transfer and beat-up.

Abstract: A weaving machine reed which has a protective strip connected to the reed on the end adjacent the fill yarn insertion device. The protective strip basically consists of a vetically elongated piece of metal with a ceramic material mounted centrally of the strip to provide a protective surface.

Abstract: In a device for securing cloth-forming parts (19) to the sley of a loom, two clamping members (71, 72, 91, 92) directed towards one another wedge-fashion are tightened on one another by a clamping screw (6), the clamping members bearing on one side in the sley by way of clamping surfaces (140, 141) disposed at an inclination to the screw axis. At least one of the parts bears on its other side directly on the cloth-forming part (19). The second clamping member (71, 72) can bear on its other side on the first clamping member (91, 92). Consequently, the securing elements (71, 91, 6) can be introduced preassembled into the corresponding groove (16) in the sley, so that assembly is rapid.

Abstract: The guide for a picking element is provided with five plane guide surfaces which are peripherally disposed about the picking tunnel. These five guide surfaces are disposed on each of the single guide tooth or are distributed between a separately constructed guide hook and an adjacent separately constructed guide support. Any two adjacent guide surfaces are disposed to define an angle of at least 90 degrees in order to reduce the friction forces operating between the guide surfaces and the picking element.

Abstract: The weaving rotor for a series shed weaving machine is formed with picking combs which have lamellae of unitary structure to define a weft-guiding part and a warp-guiding part. The lamellae may be made of ceramic pressings with the two projections on the warp-guiding part being spaced apart to provide a relatively large entry zone for the insertion of the warp yarn.

Abstract: The projectile guide employs support teeth which have horizontally disposed support surfaces for slidably receiving and supporting a picked projectile thereon. In addition, alternately arranged guide teeth are provided to define a picking tunnel while also providing a lateral guide on one side of the horizontal support surfaces to prevent sliding off of a projectile thereat. A lateral guide surface may also be provided on the support teeth on one side of the support surface to prevent lateral movement from an opposite side of the support surface.

Abstract: A guide for the gripper carrying straps inside the shed of weaving looms is formed as a nonsymmetrically shaped plate, the upper side of which is broken off to form two lateral slanting beaks delimiting the seat for the strap, the beak close to the reed being higher than the other. The seat has equal opposed ends of semicircular or wedge shape and a central undercut area on its side opposite to the beaks.

Abstract: The guide for the weft-picking element of a weaving machine is formed of alternating supports and hooks which complement one another in pairs to form a guide tooth. Each support is single armed while each adjacent hook widens towards the guide passage in order to form a support surface for the picking element. The construction ensures that a warp yarn which may jump from one lane into another lane through the guide is not overstretched.

Abstract: A batten for a massive or weaving loom of the kind composed of a solid batten shaft on bearings, on which shaft batten components like batten legs, a batten beam and a reed are fastened, characterized by the fact that the batten is located in such a way that its swinging axis (O--O) is parallel with the central axis (A--A) of the batten shaft (1) and with the axis of gravity (Z--Z) of the system composed of the batten shaft (1) and of the batten components (2, 3, 4) fastened on it, whereby the swinging axis (O--O) and the axis of gravity (Z--Z) are located outside the center axis of the shaft (A--A), but within the periphery of the batten shaft (1).

Abstract: The guide device for the picking element of the weaving machine is formed with guide teeth each of which has a flexible zone which permits a positional adjustment of the guide and support member and guide hook relative to one another. During production of the guide device, the guide and support member and guide hook of each tooth are pressed against a gauge rod by a pressing device and thereafter potted in resin which forms a block. The presence of the gauge rod ensures a precisely tubular guide channel so that the path for a picking element is very regular.

Abstract: The weaving machine has a weaving rotor with beating-up lamellae each of which has a beating-up edge perpendicular to the beating-up line during beating-up of the weft yarn. In addition, a rotatable shell is provided to operate after each beating up of a weft yarn in order to draw the cloth in the take-off direction at at least the peripheral velocity of the beating-up lamellae until these lamellae pass out of engagement with the cloth. The shell can be oscillated in synchronism with the beating-up operation via a cam disc coaxial with the rotor and a linkage secured to and end of the rotatable shell 9. The arrangement prevents the cloth from being displaced from the cloth plane by the beating-up lamellae.

Abstract: The projectile guide comprises guide teeth whose exit aperture for the weft yarn is subject to the following conditions in relation to the projectile:x=b; x=l; y=d;where x denotes the horizontal distance between the vertical centerline of the projectile and the end of the guide hook of a guide tooth; b denotes half the width of the projectile; l denotes the horizontal distance between the center M of the projectile and the free end of the support; y denotes the vertical distance between the free end of the support and the horizontal inside edge of the hook; and d denotes the vertical distance between the horizontal inside edge of the hook and the horizontal centerline of the projectile.

Abstract: A loom wherein several gripper shuttles advance simultaneously along an endless path has a track with an arcuate section extending along an arc of 180 degrees ahead of the inlet to the shed. Shuttles are temporarily stored in a magazine ahead of the arcuate section and are propelled into the arcuate section and into the range of an accelerating conveyor in synchronism with movements of the reed toward and away from the fabric. The accelerating conveyor is driven by a variable-speed motor to advance a freshly engaged shuttle first at a low speed and to thereupon accelerate the shuttle to a maximum speed not later than on entry of the shuttle into the open shed. The shuttles have guide rails, guide faces and/or guide rollers which cooperate with complementary guide elements of the reed to prevent the ejection of shuttles during travel through the shed.

Abstract: In a loom of the type in which a weft strand is projected in free flying fashion from one side of a warp shed to the opposite side thereof and which includes a lay rockable between a weft projecting position and a beat up position, a reed fixed on the lay for beating up the inserted weft strand into the fell of the fabric being woven when the lay moves to beat up position, and a strand reception tube carried on the lay for receiving the free end of the projected weft strand proximate to such opposite side, the improvement of a support for the reception tube which permits bodily pivotal displacement of the reception tube toward and away from the reed while pivoting with the lay.

Abstract: In a jet-operated weaving machine including a race on which are arranged a reed, a series of weft guides forming a weft guiding channel in a shed and a number of auxiliary nozzles provided adjacently along said series of weft guides for injecting therefrom fluid under pressure into said channel thereby to carry all the way of said channel a weft yarn introduced into the shed initially by a jet stream from main nozzle, an apparatus for mounting weft guiding members wherein said weft guides and auxiliary nozzles are mounted integrally on a plural number of mounting blocks which are arranged in a row fixedly on said race, each of said blocks being formed therein fluid passage communicated with said auxiliary nozzles and also connected to fluid supply tube.

Abstract: An apparatus for guiding a weft or filling thread in the shed of a loom, the weft thread being driven by a flowing fluid medium, comprises two lamellae combs which can dip into and out of the warp threads. The lamellae or equivalent plate-like guide elements of the lamellae combs each possess a throughpass opening for guiding the weft thread and a thread exit or outlet opening. When the lamellae are in a position completely immersed in the shed they are interleaved or shoved into one another and form a guide channel for the weft threads, this guide channel being coherent or continuous in the weft insertion direction. Hence, the thread exit or outlet openings are sealed, so that the guide channel also is continuously closed in radial direction.

Abstract: The guide tooth of the weaving machine has an upper leg with a straight outside edge for passage through the spot threads in the low shed position in parallel relation. The length of the straight edge is greater than the interval between pairs of successive tangling points in the spot threads to insure entry between the threads without damaging the threads.

Abstract: A loom in which each warp yarn passes through a retraction region and a shedding region, and in which means are provided for creating gaseous fluid flow along each warp yarn so that the yarns, or those that are not otherwise restrained, are moved to form a loop in the shedding region, the loops, or selected ones of them, being separated from the warp yarn sheet by gaseous fluid flow to form a shed, and means are provided for mechanically displacing portions of the yarns in the retraction region to move the yarns longitudinally into a path of predetermined length so as to draw the yarns into tension in the shedding region to close the shed. The means for drawing the yarns into tension may also be employed to draw the fell of the woven fabric against a fixed reed to beat up the inserted weft yarn.

Abstract: A novel construction of a control plate inserted within and corresponding to a system of plates of a picking comb of a fluid-jet loom is described. The exit opening of the control plate has a detecting section including a light source and a photocell disposed in aligned spaced relation on opposite sides of the exit slot. The width of the exit slot is narrowed, at the location of the source and photocell, to a dimension substantially equal to the diameter of the weft thread exiting from the picking space of the control plate. At least one of the light source and photocell projects into the narrow exit slot to assure an enhanced wiping action of the weft thread on the detecting elements as the weft thread moves through the exit slot.

Abstract: An improved arrangement of leno discs on axially opposite sides of the main fabric beat-up discs of a rotary reed is described. Three leno discs are provided in each set, with the channel between the innermost and intermediate ones of the discs in each leno set being established by an adjustable spacer to form the required warp-free zone between spaced bundles of the leno warp threads guided by the leno discs. The innermost disc of each set is identical in construction with the outermost disc, with the intermediate one of the discs differing from the other two only by exhibiting a peripheral warp-confining chamfer which is complementary to that of the other two discs. The chamfer of the intermediate disc is disposed on the reed shaft in axially opposed relation to the chamfer of the innermost disc.

Abstract: In a multished weaving loom, the revolving comb is reliably supported by members in the form of a certain number of rollers or pads or combination roller-pads having a bladelike configuration, to be inserted in the interdisk gaps of the revolving comb so as to rest on the interdisk spreaders.

Abstract: The invention pertains to an improved slay for weaving looms, consisting of the slay itself and of two slay swords, characterized by the fact that at least the slay swords are built as hollow structures, whereby the head of each slay sword is attached to the corresponding end of the slay and along the extension of same, and whereby the width of the slay swords is greater than that of the slay itself.

Abstract: A travelling-wave loom relates to the machine-building branch of the textile industry. This loom comprises a cloth-forming mechanism composed of a rotary reed and a separating grate with plates, and weft thread carriers propelled through the shed of the warp threads and partially accommodated in a tunnel of the separating grate. Each carrier has a groove on the side facing the plates of the separating grate, whereas each plate of this grate has a projection engaging the groove of the carrier. The ends of the projections of the plates are positioned as close as possible to the mechanical trajectory of the crests of the teeth of the reed disks so that with the disks rotating, the teeth thereof are clear of the tops of these projections.

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.

Abstract: A pneumatic weft insertion system in which means are provided for inserting up to an entire length of a weft pick from an outside weft storage, the weft being stored within an open projectile shell prior to insertion. The system involves unidirectionally pneumatically propelling the projectile and weft filling into and through a warp shed and guiding the projectile by an externally provided air cushion.

Abstract: The beam of the slay of a loom is a hollow rectangle in cross-section; the reed is held against the outside of one wall of the slay beam; the reed comprises reed blades, whose opposite ends are each embedded in a hardenable compound in the bends of a pair of oppositely disposed, facing U-rails; a plurality of holes arrayed along and passing through one rib and the slay beam wall; at each hole a fastening means supports a flange that presses against the outside of the rib; each flange is generally rhombus shaped and curved to be flattened by tightening.

Abstract: A device for supporting a rotary reed on a shaft shed weaving machine in which a rotary reed having a radially projecting profile is supported in portions of its periphery by rotary roll bodies to provide relief of the loading on the summit area of the rotary reed profile.

Abstract: A rapier loom comprises at least two rigid weft carriers, rocking lever mechanisms adapted to impart opposed reciprocatory movements to said carriers, a transverse shaft, a sley, two lateral swords carrying said sley, and means mounting said swords for oscillatory movement about said shaft, said sley being constituted by a one-piece hollow beam which extends at each side of said loom beyond the pertaining sley whereby to form two extensions one at each said side of said loom, and struts rigidly connecting each one of said two extensions to a corresponding extension of said shaft.

Abstract: A rapier loom has rapier heads which are moved by picking tapes into an open shed. Spacing elements are provided for the rapiers to ensure that when the shed is fully opened, a space is present between the tape and the bottom shed to reduce frictional contact between the warp yarns and the picking tape edges when the shed closes. The spacing elements can be in the form of slidable members which are disposed on the underside of the rapier head and/or in the form on spacing teeth which are secured to the sley and which can enter the shed between the warp yarns of a bottom shed.