Abstract: A process and a device are suggested for the placement and fixing of a sheet, which is at least partially implemented as a closed flat structure, of filaments, lying essentially in a plane, for the production of scrims having the filament sheet, wherein the filament sheet is placed, as part of the filament sheet sections forming the closed surface and as separate filament sheet sections, between two conveyor units (13) supplying a connecting station (6), with the filament sheet sections (1) being fixed onto the conveyor unit at each of both end regions with a fixing element (2, 3) and the interval of the fixing elements (2, 3) of a filament sheet section (1) relative to the conveyor units (13) being selected in such a way that the filament sheet sections (1) are, in their fixed state, positioned essentially flat between the conveyor units (13), at least immediately before entering the connecting station (6).

Abstract: A rashel machine is described for the production of a knitted fabric, especially on a double bar or multi-bar rashel machine which includes a knitting needle bar and a guide bar assemblage having several guide bars therein. The guide bar assemblage is supported on a shaft that has a rotationaL axis that can be adjusted relative to the knitting needle bar essentially in the direction of its stroke movement. According to the invention, the rotational axis is adjustable between a first position and a second position by way of an adjustment mechanism, whereby in a first position a threading-in of a thread into the hole of the guide needle is easily possible even with guide bars lying on the inside without having to disconnect the guide bars lying on the outside of the guide bar assemblage.

Abstract: A method for the production of a knitted material and a warp knitting machine for realizing the method is being described by which longitudinal conveyors are driven in such a manner so that the longitudinal conveyors are driven at least partially intermittently and/or continuously with at least at times varying speeds so that the weft threads are being guided into the area of the knitting needles according to a pattern and at arbitrary points in time and one after the other in arbitrarily desired numbers which will result in an indefinitely long and freely selectable weft thread pattern repeat. According to a further aspect of the invention an arrangement is being described in which the arrangement includes a warp knitting machine having a separate frame.

Abstract: A warp knitted fabric is disclosed having large grid openings formed by biaxially arranged stay- and weft threads. Also disclosed is a method of making the fabric. The method involves providing stay threads and weft threads which are bound to each other by stitches provided by warp threads. The number of stitches per unit length within a repeat and in the spacing between the crossing areas of the stay- and the weft threads is at least partially smaller than within the crossing areas themselves.

Abstract: There is a description of a device for the production of warp knitted fabrics which are being produced on one knitting machine having two separate and independent knitting areas. Each of the independent knitting area has at least one guide bar and at least one needle bar. The knitting areas are placed back-to-back so that the directions of the respective material pull-offs are outwardly from the machine away from each other. The needle bars and the guide bars are supported by a common machine frame which has been provided with a common drive serving both knitting areas. Thereby, a high productivity is obtained having a minimum of space and energy requirements and a low initial investment cost.

Abstract: A machine is described for the production of pre-man made-reinforcement formations especially having a thermoplastic matrix. The machine has a guiding-in device for reinforcement fibers and down-stream in the feeding direction there is a calender roller and thereafter is a winding device. At least in the area of the guiding-in device for the reinforcement fibers there is provided a needle track formed as a transport conveyor which serves as a fixation for the guided-in and deposited reinforcement fibers prior to being calendered.

Abstract: A knitting needle for a chainstitch knitting machine is disclosed wherein protuberances are introduced into the shank of the needle in order to prevent the needle from changing its position within a groove of the needle bar so that the needle hooks maintain an even distance between each other to avoid flaws in the knitted material such as striping. The protuberances are impressed into the material of the shank of the needle by pressing tools. In one embodiment, three protuberances are pressed into the shank to thereby create a three point abutment on one side of the shank against one wall of the groove, while the other side of the shank abuts against the other wall of the groove. In another embodiment, wave-like through bends are created which create linear bends normal to the longitudinal extent of the needle shank. this will assure a linear abutment of the protuberance against one wall of the groove rather than a point contact.

Abstract: Warp knitting machine with a guide bar executing an oscillation movement and a base shift movement. Single thread guides are mounted thereon and are individually movable in a to- and fro- motion in the shift direction and are combineable into one or more groups and are group-wise adjustable by electrically controlled control motors under the influence of a program control having a pattern shift movement stored therein. Each of the control motors is connected to the thread guides of at least one group by a pull control cable held under tension which extends over the length of the guide bar and is further connected to the thread guides such that all thread guides of any one group execute the same pattern shift movement. The control motors are structurally supported independent from the guide bar. The pull control cables are guided from the guide bar at right angles and then deflected toward said motors.

Abstract: A warp knitting machine comprising at least one guide bar on which individual yarn guides are arranged for individual reciprocating movement in the racking direction, the yarn guides being combined to one or several groups and moved in groups by a common pattern drive. The pattern drives are designed as servomotors which are electrically controlled by a program control and supported independently of the guide bar, and which are connected with the yarn guides via traction control cables maintained under tension.

Abstract: An apparatus for measuring the amount of yarn withdrawn from a warp beam mounted on the frame of the warp beam knitting machine is disclosed. A support arm is mounted on the frame and a lever arm is pivotally mounted on the support arm. A pressure roll is supported on the lever arm and engages the yarn wound on the warp beam. The pressure roll is operatively connected to a signal generator which generates pulses representative of the length of yarn withdrawn from the warp beam. A limit switch is mounted on the support arm and is adapted for electrical connection to the main drive mechanism of the warp knitting machine. The limit switch has open and closed positions adapted for controlling operation of the knitting machine. When the switch is closed the knitting machine is operable.

Abstract: An apparatus for controlling the drive mechanism of the warp beam of a warp knitting machine is disclosed. A pressure roll is carried by a support arm biased toward the warp beam so that the pressure roll engages the warp beam. The pressure roll is operatively connected to a signal generator which emits signals representative of the speed and thus, the amount of yarn withdrawn from the warp beam. A controller receives the generated signals compares the signals to a predetermined knitting machine operating standard. A control signal is generated to the warp beam drive mechanism for controlling the speed of yarn delivery from the warp beam.

Abstract: An apparatus for measuring and controlling the amount of yarn withdrawn from the warp beam of a warp knitting machine is disclosed. A pressure roll engages the yarn wound on the warp beam. The pressure roll drives a second drive roll connected to a signal generator for generating signals representative of the speed of yarn withdrawn from the warp beam. The signals preferably are evenly spaced yarn length pulses representing a measure of the length of yarn withdrawn from the warp beam. The pulses are transmitted to a controller circuit which compares the generated pulses with a predetermined knitting machine operating standard and generates a control signal to the warp beam drive mechanism for controlling rotation of the warp beam.

Abstract: An apparatus for threading a needle used in a sewing machine that forms a longitudinal seam in a tie. The needle has an open hook and a shank adjacent its pointed end. A thread gripper movable about two mutually perpendicular axes grips and loops the thread at least partially around the shank of the needle. The thread is received or threaded upon a retracting movement of the needle. In an alternative embodiment, a tined fork loops the thread about the needle.

Abstract: A device for folding a cut-out 3 e.g. for a necktie in a sewing machine having a supporting table 2 which has a slit 29 into which a cut-out 3 laid over the slit is pressed in use, includes a folding sword which is composed of folding bars 17 set in a row and which is arranged above the slit 29 in such a manner that when the folding sword enters the slit, the tie cut-out is folded around the folding sword, while as a result of the folding bars 17 descending into the slit to different depths, the edges of the tie cut-out to be sewn project from the slit 29 to a substantially constant height. The folding bars are each provided with displaceable stops 22 which can be locked on the folding bars and which, during the descent of the folding sword, run against an abutment 18 extending transversely over all the folding bars to define the particular depth to which each folding bar 17 descends.

Abstract: Warp knitting machine with guide bars adjusted according to a pattern by means of displacement stepping motors, which receive their displacement information in the form of a certain number of displacement pulses from a pattern memory of a control device.For determining and correcting the guide bar position of a warp knitting machine shut down in underlay position, the indicator of an electrical proximity switch is connected with each guide bar, whose sensor is mounted on a measurement slider shiftable in the displacement direction of the guide bar, said slider being shiftable by means of a measurement stepping motor over the displacement range of the indicator beginning from a start position, which corresponds to the zero-position of the guide bar.

Abstract: Beam warping machine with a device for the maintenance of required yarn tension in a group of yarns (5) with rolls (7, 8; 34, 35, 36) around which said group of yarns is wound following an S-shaped path in continuous operation, said pair of rolls being driven without slippage in a operative position (51), whereby brakes (30) acting upon the warp beam (3) are activated when the machine is stopped while at the same time one of the rolls (7,35) is swivelled radially out of its operative position (51) and away from the yarn group (5), whereby the swivelling motion ends in a slippage position (37) which can be selectively adjusted as to degree of swivelling by means of an adjustment link (39), whereby the yarns in the area of the rolls (7, 8; 34, 35,36) braked with the displacement assumes a path allowing for slippage of the yarn group (5) against the rolls (7, 8; 35, 36), said path being straighter than the S-shape.

Abstract: An apparatus for laying groups of transverse weft threads for a warp knitting machine, the threads being laid on two longitudinal conveyors running to the needle bed by means of a carriage which is reciprocated between and transversely to the direction of travel of the longitudinal conveyors. The weft threads laid after the forward movement lie parallel to the weft threads laid after the backward movement and with the same spacing from the adjacent weft thread in each case. First groups of weft threads are laid as a first layer and then groups of weft threads are laid as a second layer on the first layer in a direction of their weft threads which forms, with the direction of the weft threads of the first layer, and angle, particularly of at least 20.degree., which opens transversely to the direction of travel of the longitudinal conveyors.

Abstract: The weft threads (10) are clamped in weft thread hooks (12) supported on longitudinal conveyors (43, 44) extending perpendicular to and adjacent opposite ends of a row of knitting needles (42) by means of clamping slides (20) mounted on the longitudinal conveyors (43, 44). The clamping slides (20) are supported for sliding movement in a perpendicular direction relative to the movement of the longitudinal conveyors (43, 44) and are movable between an inactive, retracted position away from the hooks (12) through a placement zone (E) and an active position pressed against the hooks (12) and the weft threads (10) as the longitudinal conveyors (43, 44) move through a clamping zone (K) extending both upstream and downstream of the row of knitting needles (42).

Abstract: A warp knitting machine has several guide bars (15), which are suspended over the needles (1) from a bridge-like cross-beam (26) and has pile forming instruments (11) on a pile instrument bar (12). The latter is offset from the beam (26) and arranged below the guide bar operating zone. In this way the fabric can be knitted with pile loops according to a pattern.

Abstract: A process and apparatus is disclosed for feeding weft threads to a warp knitting machine including longitudinal conveyors traveling towards the knitting instrumentalities. Weft thread rakes are arranged outside of the longitudinal conveyors and are movable between a starting position in which the weft threads are placed into the longitudinal conveyors and the rakes, and a racking position against the traveling direction of movement of the longitudinal conveyors. After reaching the racking position, the weft threads are transferred onto the longitudinal conveyors and the rakes are then returned to the starting position in the direction of travel of the longitudinal conveyors. The move of the rakes from the racking position to the starting position is effected by a temporary coupling connection of the rakes with the longitudinal conveyors. After transfer of the weft threads, this coupling connection is cancelled as the rakes reach the starting position.