Abstract: A frame structure of a loom includes a frame formed by connecting a pair of side frames, to each of which a beam support for supporting a warp beam is fixed, by a plurality of beam materials, and one or more pair of height position setting members arranged between a loom installation surface and each of the side frames. Each of the height position setting members is fixed to the installation surface and the corresponding side frame. The pair of height position setting members are provided as a support structure configured such that a fixed position with respect to the corresponding side frame on at least one of a let-off side and a take-up side is an inner surface or an outer surface of the side frame.

Abstract: A drive power transmission element in the form of a wheel adapted to be mounted on a non-rotatable axel where the wheel has a peripheral surface of a geometric envelope or cam profile developed on a mathematical formula being bounded and rectifiable and therefore having Defined length and area receiving a flexible power transmission element such as a rope of solid braided nylon cord locked by compression rather than friction operating circumferentially, where for example as a boat cleat or in radial operation, ideal in general for transmission of mechanical power directly applied to various mechanical linkages or where the operable dynamic forces of compression may operate as force fields or mechanical structures in lighter than air envelopes, parachutes, hydraulic nozzles, pumps, internal combustion engines, envelopes for jet engines, fiber optics, designs of optical lenses, and related applications to move or contain mass and energy over distance.

Abstract: Disclosed is a thread feeding method for feeding threads to a weaver. According to the thread feeding method, a multiplicity of strands of yarns are fed with intervals to each line of the thread feed lines, while some strands of the multiplicity of strands of yarns are being separated from the other strands according to color or shade to be expressed at spots where they are either woven or knitted and are then fed to the weaver such that the colors or shades of the separated strands are combined to express target colors or shades at the spots where the strands are woven or knitted. Further, the method allows changing of colors or black and white shades of the threads being fed to the weaver, and strands may be combined with other strands of yarns with different colors to express tens or hundreds of colors on a fabric.

Abstract: A hybrid yarn filament and sleeve constructed therefrom for protecting elongate members against at least one of EMI, RFI or ESD is provided, along with methods of constructing the hybrid yarn filament and sleeves. The hybrid yarn filament has a nonconductive filament and at least one conductive wire filament overlying an outer surface of the nonconductive filament. The hybrid yarn filament is arranged in electrical communication with itself or other hybrid yarn filaments during construction of the sleeve to provide uniform shielding against EMI, RFI, and and/or ESD.

Abstract: The invention relates to a loom comprising a warp thread tensioning device and a shedding device (12), which comprises pre-tensioned warp threads (4) in a first shedding position (F1). The loom also comprises a lifting device (38), which can be driven in an oscillating manner, and followers (40) for the warp threads (4), in addition to control means (46) that can be operated by actuators (44) in order to selectively engage the warp threads (4) in the followers (40) and that displace the warp threads (4) into a second shedding position (F3). To simplify said loom, a second lifting device (48), which is common to all warp threads (4), is provided in order to displace said warp threads (4) from the first shedding position (F1) into a selection position (F2), in which the first lifting device (38) is active, and in order to displace non-selected warp threads in unison into the first shedding position (F1) by the pre-tensioning of said warp threads (4).

Abstract: A leno cloth is prepared, which comprises at least ground warp threads 1, leno warp threads 3 and weft threads 2, and in which the weft threads 2 and the ground warp threads 1 are arranged essentially interspace free. The weft threads are bound-off by means of the leno warp threads 3, which comprise a clearly lower titer relative to the ground warp threads 1, with such a lower tension relative to the ground warp threads, so that the crossings of the leno warp threads 3 with the ground warp threads 1 that are present due to the binding are arranged in a plane parallel to the plane of the maximum thickness of the weft threads. The leno warp threads 3 comprise a higher working-in or take-up into the woven cloth than the ground warp threads 1. According to a further aspect of the invention, a method for the production of a leno cloth as well as a loom for the carrying out of the method for the production of a leno cloth are described.

Abstract: A novel shaft gear for harmonious engagement and disengagement of individual heddle shafts and for deriving their motion from the rotary motion of a single input shaft has a coupling system with two input elements. While one of the input elements serves to drive the output element of the coupling system permanently, the other input element serves solely to synchronize the output element briefly with the first input element. The switchover takes place in the brief synchronous phases, in selected angular regions that correspond to the top or bottom reversal point of the heddle shaft. For the switchover, such novel shaft drive mechanisms do not require any stoppage of motion for the input shaft or the shaft drive mechanism.

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: A yarn tightening element for a weaving machine, comprising a passage (16) for a yarn (15) and a contact means (2) to transmit a tightening force to a yarn (15) moving along through this passage, the passage (16) being not bordered on at least one side of the plane of movement of the yarn (15) or comprises a boundary (14) that is interrupted across its width, so that a part of the yarn (15) running through from that side of the plane of movement, via the interruption (17), can be made to co-operate with the contact means (2). Said boundary is, for instance, formed by one or more fingers (14) directed downwards, while said interruption (17) of this boundary (14) is formed between the extremities of each finger (14) and a part (8) of the yarn tightening element. Such a yarn tightening element can be placed on a yarn very easily and quickly by means of a hooking on movement and be removed again by means of an equally simple hooking off movement.

Abstract: A plurality of polypropylene wickers are made of a polypropylene film. The polypropylene film passes through a chill roller to decrease a temperature of the polypropylene film, and a cutting roller having a plurality of cutting blades to cut the polypropylene film into a plurality of polypropylene bands. Each of the polypropylene bands passes through a U-shaped mold roller set and a folding mold, the folding mold folding the corresponding polypropylene band into three layers, a folding roller folding the corresponding polypropylene band completely to form a polypropylene woven yarn, and the polypropylene woven yarn passing through an extension molding roller set and a setting roller set.

Abstract: A weaving or spinning machine includes one or more thread guides secured on one or more fasteners and each having two ears, and a space formed between the ears for retaining a thread between the ears. The ears each includes a hook extended toward each other for retaining the thread between the ears. The ears of the thread guides may be engaged with each other with a projection-and-cavity engagement, for preventing the thread guides from being rotating relative to each other. One or more nuts may be engaged onto the fastener for fixing the thread guides on the fastener.

Abstract: A device for tensioning and drawing back warp yarns brought from a creel to a weaving machine. The tensioning and drawing back device keeps tension and if necessary draws back warp yarns (2) led from a bobbin (1) to a weaving machine. A supporting body (6) has a curved friction surface to support the warp yarn (2) between the bobbin (1) and the weaving machine. A first (7) and a second tensioning element (8) exert a tensile force on the warp yarn (2), respectively, in front of and behind the curved friction surface (6). The tensioning elements (7), (8) can be suspended from the warp yarn (2) and for example only through their own weight may exert this tensile force. This device easily draws back the warp yarn (2) out of the weaving area. The replacement of a bobbin (1) occurs without interruption or disturbance of the weaving process.

Abstract: A device method for repairing leaks in pressurized lines, particularly refrigeration lines, without having to drain the fluid from the line, thereby reducing the possibility of refrigerant contamination and/or loss, and providing protection to the environment. The device of this invention is installed over a leak in the line and remains in service for the life of the line.

Abstract: Different groups of warp threads are subject to different variations of warp thread tension during shed changes, especially when weaving a fabric having portions such as fabric edges with different weave binding patterns. To provide different warp thread tension compensation for the different thread groups, a cam-like first tensioning module is arranged protruding from the circumferential surface of the backrest along the entire operating width thereof. Second and third tensioning modules are arranged and engaged over the first tensioning module at particular selected axial locations on the backrest. While the second and third tensioning modules provide a constant deflection path distance for second and third warp thread groups guided thereover, the first tensioning module provides a varying deflection path distance for the first warp thread group guided thereover, depending on the oscillating rotational angular position of the backrest.

Abstract: A weaving machine comprises an arrangement for adjusting or optimizing the consumption of warp thread. The weaving machine permits weaving of different widths for the woven material. First bobbins can be arranged next to one another, with synchronized rotation, on a warp beam (Vb) of the weaving machine in order to effect a warp thread supply which represents a minimum width for the woven material. Second bobbins can be arranged, individually from the point of view of rotation, in bobbin boards in order to effect a warp thread supply which represents widths between the minimum width and a maximum width for the woven material. The second bobbins are provided with, or can cooperate with, activatable and deactivatable brake members by which the number of second bobbins (2') corresponding to the set weaving width can be engaged for warp thread supply in the weaving machine.

Abstract: A weaving frame or module for supporting warp thread bobbins for a weaving device and for changing bobbins with the weaving modules and bobbin pallets, has bobbins that can, at least partly, be changed without causing any interruption or any disturbance to the warp thread tension in the weaving zone of the weaving device. The frame or module is subdivided into a number of fixed cells for taking individual bobbin pallets each of which has supports for holding a bobbin and for guiding and breaking a thread.

Abstract: In the event of an interruption of the weaving process and in the case of weaving-technical operations, such as tabby weaving and unraveling, a trailing of warp thread bobbins and thus a trailing of warp threads which are withdrawn from the bobbins and form a warp thread family, cannot be avoided without significant expenditures. The trailing results in a so-called trailing length in the thread family which, unless it is correspondingly taken up and correspondingly released during the new start of the weaving process, results in an overstretching of the warp thread family during a starting operation of the bobbins. This disadvantage is avoided by deflecting the thread family within a feeding stand, in the event of a weaving stop, in a controlled manner from a reference plane into at least one defined position. At the new start of the weaving process, the deflection is eliminated in a controlled manner.

Abstract: Weaving device for producing a woven structure which is intended for the production of a composite component, including especially a component (5) for generating different speeds of movement for at least some of the warp yarns (FC). Component (5) includes a substantially plane profiled cam (5) capable of rotating about a longitudinal axis (X--X) and arranged so that the longitudinal axis (X--X) is approximately orthogonal to the direction (D) defined by the warp yarns (FC). The profile of the cam is defined by a variable transverse length (h) perpendicular to the longitudinal axis (X--X).

Abstract: A thread-tensioning and pull-back device for use with a weaving machine for controlling the tension of a series of warp threads pulled off from removable and replaceable bobbins arranged in rows in a weaving rack of a weaving machine is adapted to be located in front of the weaving rack of the weaving machine. The device includes a series of thread guide plates each having a feed-through eye whereby each guide plate tensions the thread through each guide plates own weight. The guide plates could also be leaf springs which tension the threads by bending stress.

Abstract: A method and apparatus for supplying twist free flat warp containing a plurality of carbon fibers to a plurality of wefts in a weaving loom, wherein the warp is transversely removed from a plurality of bobbins and twisted along a longitudinal travelling direction of the warps so that flat surfaces of individual flat warps are oriented at a right angle to an arranged direction. The plurality of flat warps are reeded to a desired density in relation to the arranged direction. The warps are then twisted along the longitudinal travelling direction so that the flat surfaces of the individual flat warps are oriented to the arranged direction.

Abstract: A warp tension measuring apparatus for weaving machines or looms has a force sensor or pick-up (3) and a member (2) which is in active communication with the force sensor (3) to transfer a force acting on the members (2) onto the force sensor. The force sensor (3) is provided with a resilient element (9) to improve the introduction of force, on the one hand, and to damp mechanical oscillations, on the other hand.

Abstract: The method of weaving a dimensionally stable fabric filter medium having particular use in a pressure filter apparatus. The fabric is woven with tension on the warp and weft yarns and the woven fabric is heat set outside the weaving loom to create a desired crimp in the warp and weft yarns and thus to produce a dimensionally stable filter medium. The fabric is woven in a pattern and of materials that provide the desired permeability while being capable of capture of the solids in a slurry and permitting the fluids of the slurry to flow through the medium.

Abstract: A weaving method for woven goods in which the warp yarns are disposed among reed dents of uniform spacing in a reed according to a sequence of numerical values having a 1/f fluctuation, thereby imparting a 1/f fluctuation to the arrangement of warp yarns.

Abstract: A process by which rugs and other pile fabrics can be woven to incorporate large uninterupted areas of a single color without a streaking appearance. As a fabric is being woven and a yarn end is woven into the face of a fabric, before the distance of the yarn end on the face of the fabric reaches a significant length, the yarn end is pulled from the face of the rug to float on the back of the rug as the weaving process continues. Meanwhile another end of identical color takes the place of the floating yarn end, and is woven into the face of the rug along the same longitudinal row, also for no more than a significant length. By this technique an off-color yarn will not travel far enough in a continuous line to manifest itself to the human eye as a streak. By pulling the same color yarn from two creel positions in every longitudinal row of a single colored area, and alternating between the two positions in every longitudinal row streaks do no appear in any part of the rug.

Abstract: A warp guiding device which includes a holding device for mounting a number of warp guide bars (23) and driving devices (24) for moving the warp guide bars is integrally constructed so that it can be brought into and out of operational connection with a weaving rotor of a series-shed weaving machine. The weaving machine includes an installation arrangement for receiving and securing the warp guiding device on the weaving machine.

Abstract: A creel for directly supplying twisted yarns to a machine (13) such as a loom or warper from a plurality of yarn bobbins (3) arranged on a creel (1) for holding non-twisted yarn (2). Two banks of bobbins (3), optionally contrarotate at a predetermined speed to respectively provide "S-twisted" and "Z-twisted" yarn streams (4) having a desired twist number. The bobbins (3) are disposed on a plurality of spindles (5) that are driven by suitable drives (6). A bobbin attachment (7) is mounted at a free end of each bobbin (3) and fixedly supported on the spindle (5). A yarn storage (8) is provided on the attachment (7) and includes a yarn adjustment ring (9) for providing yarn delivery in a stable manner under appropriate tension. Once the yarn has passed the yarn storage (8) and yarn adjustment ring (9), a desired twist is imparted to the yarn (2), and twisted yarn (4) is delivered to the machine (13).

Abstract: A method and apparatus for weaving woven articles in a plurality of widths includes the steps of providing a weaving machine having at least one weaving head and harnesses controllably guiding a multiplicity of warp strands between first and second path planes that converge at the weaving head, a reed member reciprocally moving between the harnesses and the weaving head for packing a weft strand into the woven articles, the reed member having a multiplicity of slots for receiving and guiding the warp threads in planes intersecting the first and second path planes, the slots being closely spaced and defining a maximum weaving width W.sub.M of the weaving head, the woven articles being serially collected from the weaving head; separating the warp strands from the reed member into a first group and a second group, the first group including sufficient warp strands for forming the woven articles at a predetermined weaving width W.sub.

Abstract: A weaving machine for weaving fabric, felts and wires of different widths, comprises a warp thread magazine, first members for feeding warp threads into the weaving machine, and second members for executing the weaving functions in the weaving machine. The warp thread magazine includes a number of warp thread-bearing bobbins which are mounted individually alongside one another and individually selectable so as to form warp thread widths which correspond essentially to the widths of the various fabrics which can be woven in the weaving machine. The first members for feeding the warp threads include feed-in rollers each made up of individually rotatable sections which are arranged alongside one another and cooperate with associated warp thread-bearing bobbins, wherein the feeding-in of the warp threads from selected bobbins can be effected by rotating those sections of the feed-in rollers which cooperate with the selected bobbins.

Abstract: A quick change assembly for a tire cord fabric loom utilizes a pattern of warp ends which are threaded through suitable harnesses. The pattern in the harnesses is placed in the loom and the individual warp ends are pulled back to a plurality of creel combs which are secured to the creel and which each receive and guide a group of warp strands from the creel. These warp strands are directed to the loom and are formed into the tire cord fabric having the desired pattern.

Abstract: A method and apparatus for supporting upper warp beams of a loom wherein adjustable central support structures are provided for supporting upper warp beams of increased capacity. End supports are provided for allowing offset of the warp beams to accommodate larger drive gears. The combination of the end supports and adjustable central support system increases safety of supporting the upper warp beams and also allows use of upper warp beams of equal size to the lower warp beams. This allows for the loom to run significantly longer prior to change out of the upper warp beams.

Abstract: To operate the loom, one or more warp-tensioning elements is or are actuated by separate drives on an individual pick basis with free triggering and at loom speed. The warp tension can therefore be so modulated as to obviate deleterious tension peaks and warp breakages and overflow tensions. The loom has at least one servomotor. A servomotor, which is triggered by a control and adjustment circuit arrangement, drives the warp-tensioning element by way of a reduction transmission and transmission elements. The servomotor can be commutated preferably brushlessly and electronically and have a low mass inertia rotor and high-field-strength permanent magnets.

Abstract: A creel which can deliver untwisted yarns from bobbins in a weaving machine while at a same time twisting them or else twisting some of such untwisted yarns in the S twist and the remaining untwisted yarns in the Z twist with relative low investment for equipments. The creel employs a mechanism similar to a ring twisting mechanism and includes a required number of spindles for rotating bobbins supported thereon, a ring secured in a concentrical relationship to each of the spindles, a traveler mounted for movement on each of the rings, and a driving device for driving the spindles to rotate in a clockwise or counterclockwise direction such that when the untwisted yarns are unwound from the bobbins via the travelers, a twist in the S or Z direction may be applied to the untwisted yarns at a same time.

Abstract: A wireless let-off and take-up control system for controlling the let-off motion and take-up mechanism of a loom or looms by wireless. The control system comprises a portable transmitter or transmitters, and a receiver or receivers each associated with the controller of a loom for controlling the let-off motion and take-up mechanism of the loom. Instructions for controlling the let-off motion and the take-up mechanism are given by wireless by operating the transmitter through the receiver to the controller of the loom at an optional position around the loom, so that a single operator is able to observe the movement of warps and, if necessary, to vibrate the warps in order to enable the warps to move smoothly past the droppers, the mails of heddles and reed of the loom in preparing a new warp beam for weaving operation on the loom.

Abstract: In a control for a warp beam drive of a weaving machine, the warp beam drive is regulated at all times by a control which receives input signals representing the number of rotations of the warp beam and representing the tension of the warp threads. If the weaving machine has come to a standstill because of an error which has taken place, then, before the warp beam drive is re-started, the tension on the warp threads is increased to a specific value by rotating the warp beam in reverse, in order, during re-start, to take warp thread tension back to a predetermined normal value again through suitable action on the warp beam drive. The effect of this is that no stop marks or start marks are formed in the woven material as a result of the weaving machine having stood still.

Abstract: During the weaving process, the location and displacement of the cloth line and/or the breast beam are continuously detected; the detected value is supplied to a drive unit; in the event of a variation in cloth line location with respect to the desired location, the breast beam is moved by means of a drive unit such that the cloth line is returned to the desired location, or in other words, the cloth line is automatically maintained and/or returned almost to the desired location by means of the breast beam.

Abstract: A pick spacing controlling device of the digital system for controlling the pick spacing of a fabric being woven on a loom having a main motor for driving the principal weaving mechanism of the loom, and a take-up motor for driving the take-up roller of the loom by controlling the output rotation amount of the take-up motor so that the output rotation amount of the take-up motor varies in direct proportion to that of the main motor or that of the principal part of the loom. The output rotation amount of the take-up motor and that of the main motor or the rotation amount of the principal part of the loom are detected by encoders. An arithmetic unit processes pulse-number modulated input signals corresponding to the output pulse signals of the encoders to obtain the difference between the pulse-number modulated input signals in the number of pulses, and then a driving actuator drives the take-up motor so that the difference is reduced to zero.

Abstract: A device for treating a surplus warp yarn drawn from a warp beam of a loom consists of a drive member rotatable by the warp beam. A rotational force of the drive member is transmitted through a transmission device to a driven member. The driven member is secured to a take-up reel disposed separate from the warp beam. The surplus warp yarn drawn from the warp beam is wound up on the take-up reel rotatable with the driven member, thereby preventing the surplus warp yarn from getting entangled with regular warp yarns drawn from the warp beam.

Abstract: A method and apparatus for measuring the tension on textile fabrics in a textile machine especially a loom. At least a part of a fabric is subjected to simultaneous transverse deflections, the speed of propagation of the simultaneous transverse deflections along the fabric is determined, and the tension on the fabric is determined in accordance with the determined speed of propagation. An exciter and a receiver is utilized for initiating the transverse deflections and determining the speed of propagation thereof.

Abstract: A method for starting the operation of a loom always under a constant warp tension after the completion of the amendment of faults in the woven fabric such as miss-pick. A warp beam in the stationary loom is rotated by a commmand signal from a control unit in the normal or reverse direction so that the preset tension can be attained. As a result, a weaving bar which often occurs in the prior art just after the loom has restarted due to disturbance of gear ratio of the speed changer during the transient state can be avoided.

Abstract: The tensioning beam assembly has a tensioning beam and/or support beam mounted in step bearings located across the width of the weaving machine. Sagging of the tensioning element is eliminated and reduced diameter tensioning elements and support beams can be used.The tensioning element may be formed as a solid shaft which is rotatably mounted in individual step bearings on the support beam or fixedly mounted by connecting pieces to the support beam. In one embodiment, the tensioning element is in the form of a plate which is secured directly to the support beam and which has a curved outer end over which the warp threads pass. In still another embodiment, the tensioning element is in the form of a U-shaped plastic strip which is mounted about a projection extending along the support beam.

Abstract: A weft-bar (set mark) prevention system for a loom which can prevent a weft-bar caused when the loom is immediately restarted, after the loom has been stopped due to weft- or warp-thread cut (i.e., breakage of a weft or warp thread). When the loom is restarted from the closed-shed state, a greater additional warp tension is applied to the warp threads; when the loom is started from the open-shed state, a smaller additional warp tension is applied to the warp threads. After one or two cycles of the loom motion, the above-mentioned additional warp tensions are not applied, because the main motor is in a stable condition. The system according to the present invention comprises an optical loom-starting angle sensor for detecting whether the loom is started from the closed-shed or open-shed, a counter for determining at least one initial cycle during which warp tension is controlled, air cylinder to push the easing lever in the direction to increase warp tension.

Abstract: A shedding apparatus for the circular weaving of multi-harness fabrics includes a plurality of heddle frames for weaving a multi-ply screen of the type suitable for use with a paper making machine. Each heddle frame has a warp wire from each fabric half drawn therethrough and a divider wire is located between the heddle frames and the reed. The divider wire extends across the entire width of the fabric with all of the warp wires of the upper fabric half extending above the wire divider and all of the warp wires of the lower fabric half extending beneath the wire divider so that upon weaving of one fabric half the divider wire is raised or lowered so that the warp wires of the other fabric half are urged away from the shed by the wire divider. A compensator rod may be provided between the heddle frames and the warp beam to compensate for the tension placed on warp wires due to different path lengths for the warp wires as caused by the wire divider.

Abstract: A device for regulating the speed at which a weaving machine having a dancer is supplied with warp threads from a warp beam such that the speed and tension of the warp threads are substantially constant. The warp beam is provided with a variable speed drive having an alternatingly operable coupling and brake controlled by a regulator which compares the actual speed of the drive with a reference value. The actual speed is generated by an optical tachometer connected to the drive and the reference value represents an averaged number of dancer deflections and is generated by an integrator which receives the output of a potentiometer connected to the dancer.

Abstract: An apparatus for tensioning warp threads of a loom comprises a warp beam from which the warp threads are withdrawn by means of a support beam and a deflection beam. The deflection beam is secured to the support beam by means of bending springs acting in the direction of the deflected warp threads. The bending or deflection length of the bending springs is adjustable for preselected setting of the warp thread tension in that the bending springs are supported at their bending or deflection side by means of a bending-resistant support plate which is adjustable in lengthwise direction. These measures provide for a purely mechanical, simple, easily adjustable and functionally reliable tensioning apparatus which is particularly suitable for the pile warp of a Terry weaving machine.

Abstract: The warp beam is constructed with a hollow tube on which flanges can be symmetrically mounted as well as with a tubular extension at one end to permit asymmetric mounting in the bearings of a weaving machine. The warp beam is shaftless and the extension element has a slightly greater diameter than the diameter of the warp beam tube so as to render the warp beam more rigid. The rigidity of the warp beam reduces distortions and vibrations of the warp beam during weaving.

Abstract: A method for guiding warp threads with a back reed in a loom is provided, according to which the back reed is driven in reciprocative motion in a direction parallel to the dents thereof so that the points at which the running warp threads are contacted with each dent are distributed over the substantially whole length of the dents and, as a result, the accumulation of fluffy flue in the form of pills on as well as the local wear of the individual dents can be prevented, while productivity in weaving is improved and the serviceable life of the back reed may be extended. Pill-like fluffy flue eventually formed on the dents can be effectively removed by means of rollers which are provided on the back reed.

Abstract: The support arm of the bearing mounting is freely supported from the holder so as to move vertically up and down so that vibrations of the warp beam which occur during operation cannot be transmitted to the floor of the weaving room or building. The support arm is adjustable rotatably about the holder as well as axially along the holder. In addition, a web connection can be used to fix an intermediate part of the support arm to another beam within the machine frame on the warp side of the main beam.

Abstract: A warp beam bearing for a loom which includes a projecting arm carried on each side of the loom frame. A guide surface is provided on each of said arms for receiving a shoe which has an arcuate surface provided thereon. A cylindrical sleeve is detachably secured to each end of the warp or loom beam for supporting said loom beam in said arcuate surfaces of said shoe. A stop surface engages one side of the cylindrical sleeve for properly positioning the beam on the loom. A pivotal spring biased clamp engages the other side of the cylindrical sleeves for pressing the sleeves against the stop surface when said beam is in a running position. A low frictional surface is provided on the clamp where the clamp engages the cylindrical sleeve. In removing the beam from the loom the clamp is pivoted out of engagement with the cylindrical sleeve and the shoe is shifted along the guide surface to a remote position wherein a truck can lift the beam.

Abstract: A lever, pivoted intermediate its ends, rotatably mounts a roller at one end engaging the material being wound off a core. In one embodiment, the lever is spring biased in a direction to bias the roller against the material, and changes in the position of the opposite end of the lever are effective to adjust a potentiometer forming the control element of an asynchronous single phase variator. In another embodiment of the invention, the spring is omitted, and a pressure-resistance detector is mounted between the opposite end of the lever and a frame. In a third embodiment of the invention, the opposite end of the lever carriers a shutter cooperable with a photoelectric control, the lever being spring biased in this embodiment. The pressure-resistance detector can be substituted in the variator for the potentiometer.

Abstract: A device for equalizing the warp yarn tension in a loom having a movable back rest and a fixed beam spaced therefrom. The back rest is moved to and fro the beam during the weaving operations with the warp yarns extending thereover. A pressure cushion is carried between the back rest and the beam parallel to the back rest and the beam. The pressure cushion is compressed and relaxed as the back rest moves to and fro said beam during the weaving operation for equalizing the warp yarn tension.