Abstract: A process for operating and controlling compound needles that have reciprocal travel of the needle and slider restricted by abutment surfaces where the needle is lifted high enough to engage yarn but less than the travel of the needle and slider and the descent of the needle. Before the needle descends, the needle is lifted selectively to bring the upper end of the slider above the plane of knock-over of the sinkers through the action of abutment between the needle and slider. Needle descent takes place along at least two successive slopes in a track with different descent inclinations, the second slope being the steeper. Slider recall by the needle begins before the needle is brought down again by the second slope. Improved stitch-forming cams to permit compound needles to operate in accordance with the foregoing process are disclosed also.

Abstract: A needle bar of a warp knitting machine, the needles of which comprise a needle shank bent at an angle, the bent portion of which is supported against a correspondingly shaped abutment on the needle bar. The bent portion bears against an end face of the needle bar with a face which extends substantially perpendicular to the direction of movement of the needle through the goods.

Abstract: A plurality of compound needles 1 are arranged in corresponding needle tricks 20, their butts 11, 14 being selectively caused to sink into the needle tricks during the movement of a carriage. A stitch receiving course raising cam 41 which acts on the butts 14 of individual needle bodies at welt position (WC) is disposed on a cam plate 31 of the carriage and in a space defined between a pair of cam faces 32a of a tuck position raising cam 32 which act on the butts 14 of individual needle bodies. Above the cam 41 there are provided stitch receiving courses (REC) for the butts 14 which lead to a tucking course (TC) through the space 40, and a stitch transfer position raising cam 37 which acts on the butt 14 of each needle body raised to a tuck position or knit position.

Abstract: A plurality of compound needles 1 are arranged in corresponding needle tricks 20, their butts 11, 14 being selectively caused to sink into the needle tricks during the movement of a carriage. A stitch receiving course raising cam 41 which acts on the butts 14 of individual needle bodies at welt position (WC) is disposed on a cam plate 31 of the carriage and in a space defined between a pair of cam faces 32a of a tuck position raising cam 32 which act on the butts 14 of individual needle bodies. Above the cam 41 there are provided stitch receiving courses (REC).sub.1, (REC).sub.2 for the butts 14 which lead to a tucking course (TC) through the space 40, and a stitch transfer position raising cam 37 which acts on the butt 14 of each needle body raised to a tuck position or knit position.

Abstract: Elongate grooves are provided along both or one side of the shank of a knitting needle. The elongate groove is parallel with the back edge and is positioned between the back and front edges of the shank of the needle. The elongate grooves reduce the weight of the needle without substantially reducing the vertical rigidity of the shank of the needle and function to reduce the transmission of impact shock from the needle butt to the hook. The grooves also provide a passageway extending longitudinally along the needle shank to provide for improved retention and distribution of lubricant along the needle shank.

Abstract: A compound needle for a knitting machine has a machine shank of substantially rectangular cross section, in which a substantially U-shaped longitudinal groove open at the top is formed. A closing slider adapted to fit the cross section of the groove is guided in the groove in a longitudinally slidable manner, and the groove has at least one slit leading to the outside, which extends parallel to the longitudinal axis of the groove.In order to attain satisfactory removal of fluff or lint from the longitudinal groove, on the one hand, and to assure sufficient stability and resistance to transverse bending of the needle on the other, the longitudinal groove is closed on its top, at least partially, in the vicinity of the recess by means of a rib which also forms a guide for the slider.

Abstract: A compound needle for a warp knitting machine is disclosed comprising a needle stem having a hook (5) at one end and a breast portion (7) at the other. Between the two is a connecting portion (6) over which the warp threads (13) are laid. The needle stem has a longitudinal groove (8, 9) extending the length of the connecting portion (6) and into the breast portion (7). Slidably located in the groove (8, 9) is a slide memeber (3) having a forwardly extending hook closure member (4) which, in the rearward position of the slide is completely concealed by the breast portion (7). As the slide (3) is pushed along the groove (8, 9) by the operating arm (2) the hook closure member (4) collects the warp threads (13) and transports them into the hook (5) before finally closing the hook (5) prior to withdrawal of the hook (5) through the loop (15) to complete the stitch.

Abstract: A pair of flat needle beds are disposed in a V-configuration on a frame. Each needle bed includes a plurality of needles which can be extended and retracted by manually grasping butts thereof. When the needles of both beds are extended, a generally V-shaped recess is defined therebetween along which a yarn to be knitted is laid by hand. For single knitting, one of the flat needle beds can be omitted and an attachment can be secured to the frame which has a plurality of fingers which co-operate with the needles in the remaining bed.

Abstract: Sliding latch needles used in slots of rotary cylinders of circular knitting machines wherein the latches are subject to centrifugal force which moves the latches radially outwardly of the needle slots away from their proper position relative to the needle hooks. The hooks are provided with apertures extending completely through the same and through which the latches extend from the rear side of the hook to abut against the hook and thereby to retain the latches from movement away from the hook.

Abstract: A knitting-transfer cam unit for V-bed flat knitting machines wherein needle butts of the needle bodies of slider needles are selectively lowerable in the needle channels of the needle beds by means of a needle selection device, and wherein the slider needles have sliders provided with slider butts and arranged for the transfer of stitches, comprises stationary and movable cam elements for engagement with the needle butts and the slider butts, and also comprises pressure cam elements.

Abstract: There is provided a slider needle for warp knitting machines, comprising a slider. The slider is guided by the opposing side walls of a slot cut in the front face of a needle shaft. The opening of the slot carrying the slider, opposite the slot base, is widened or flared in such a manner that there is provided such a separation as to prevent contact between the slider and the forward portion of the slot wall. Thus, abrasion of the forward face into sharp edges which could negatively affect the stitch threads is thereby avoided.

Abstract: A slider needle for knitting machines, particularly flat knitting machines, omprises a needle body with needle hook and needle butt, and a slider with a slider butt and mounted to be displaceable relative to the needle body. In order to produce a slider needle of simple construction with the needle butt capable of being depressed into the needle bed, the needle body consists of a guide shaft provided with a slot for receiving and guiding the slider and a flexible shaft extending from the guide shaft and projecting rearwardly from the guide shaft towards the needle butt, with the flexible shaft carrying the needle butt and being engageable from below in the needle channel by a tilting lever.

Abstract: A slider needle for knitting machines, particularly flat knitting machines, omprises a needle body with needle hook and at least one needle butt, and a slider equipped with slider foot and mounted to be displaceable relative to the needle body. In order to ensure trouble-free and reliable separation of the old stitches from newly laid yarn a short swivel detent is mounted on the needle body behind the needle hook. The length and shape of this swivel element is chosen so that in the normal position of the needle, with the needle hook closed by the slider, the swivel detent is masked by the slider in the vertical direction, while when the needle hook is open the swivel detent projects proud of the needle body and above the slider in both its end positions.

Abstract: A stitch forming device comprises a hook element and a closure element. The hook element is fabricated from an unweakened, solid or strong body member and enables constructing the hook so that it also is extremely robust. The hook element is slidingly supported by the closure element which is fabricated from a simple profile member. By virtue of the configuration which is imparted to the stitch forming device there is possible, on the one hand, a simple and economical production and, on the other hand, because of the robustness and the relatively short displacement movement needed for knocking-off the stitches there can be utilized increased working speeds and there is obtained a longer service life or longevity. By means of rotational movements, which both elements can accomplish relative to one another, it is possible to obtain novel knitted goods possessing twist effects.

Abstract: A knitting needle set for a warp knitting machine has a needle bar and a plurality of hooked needles each of substantially equal length clamped to the needle bar. The plurality of needles each have a hook end and each have at substantially the same distance from its clamping position an insertion opening bordered by the hook end. This insertion opening leads to an interior hook space. The plurality of needles are divisible into at least two groups. The spacing from the zenith of the concave surface of the hook space to the hook end in each of the needles of a given one of the groups differs from that of another one of said groups.

Abstract: A pusher needle wherein the oscillating movement in horizontal and vertical direction is replaced by an oscillating rotational movement affording an increase in the needle frequency, and thus, a production increase during the stitch formation. The oscillating rotational movement is caused by a curved construction of the pusher guide and the pusher portion displaceable therein.

Abstract: A warp knitting machine is disclosed as including slider needles, each of which has a needle shank of channel form with a hook head and a slider that covers the hook opening of the needle shank by means of a cover member fitted on the slider shank, such cover member is shorter than the hook opening of the needle shank, and the slider has such a cross-section that it carries the stitch in each instance without being supported on the needle shank and/or the hook head.

Abstract: The slide frame of the warp knitting machine is secured via a spacer element of light weight construction on the slide bar. The spacer means is in the form of a plurality of elongate plates which are resilient in the longitudinal direction of the slide frame or in the form of a single one piece perforated plate.

Abstract: A knitting machine includes latchless needles, and selector elements located in positions corresponding therewith. Each selector element comprises a hook-like extension directed towards the needle point and arranged to penetrate into a longitudinal slot in the needle. The selector elements are subjected to sliding movements approximately perpendicular to the needles, together with lifting and lowering movements so that they penetrate into the needle slot, and are lifted in order to take-up the stitch engaged by the needle and to remove it therefrom. Alternatively the selector element can abandon the stitch by lowering its hook-like extension below the plane of formation of the fabric.

Abstract: A warp knitting machine has a row of needles, a row of warp thread guides for feeding to the needles warp threads which form the chain stitches of a ground fabric and a row of weft thread guides for feeding to the needles weft threads which form the inlay of the ground fabric. At least one row of pile thread guides is used to feed a respective pile thread to each needle. A row of pile-thread reserve-forming supports is provided, each support being individually shiftable, by a jacquard mechanism, from a reserve-forming position to a reserve-releasing position. The reserve-forming support, when in the reserve-forming position, forms a reserve length in a respective pile thread, by increasing the length of the path which the pile thread takes to a respective needle. Each and every pile thread is provided with such a reserve length in each and every course of the fabric. Each needle is provided with a clamp which clamps the pile thread to the needle.

Abstract: A minimum friction slider needle for use with warp knitting machines includes a shank having a slot provided therein. The bottom portion of the slot is provided with a raised portion which is the only portion of the shank that comes into contact with the slider member in operation.

Abstract: A machine knitting needle with an improved hook structure is disclosed. The hook includes a shank portion extending from the tapered part of the needle blade, a curved portion, and a portion overlapping the shank. At least a major longitudinal part of the overlapping portion has cross-sectional areas greater than the cross-sectional areas of the remainder of the hook.

Abstract: Slider needles for use with warp knitting machines which may be used to provide a trick plate thread layed in around the needles includes a hook formed end portion and a shank portion with a groove provided therein. A slider member slidably cooperates with the groove and is coupled to the machine driving means. The slider member has one end portion extending from the shank to the tip of the needle hook end portion. The slider member is further provided with an enlarged cam portion displaced from the tip thereof, which is disposed within the mouth of the hook opening when the hook is closed in a first position and recedes towards the shank, opening the hook, in a second position.

Abstract: A needle assembly for use in a knitting machine, particularly circular and flat knitting machines having one or more working systems and one or two working needle beds, the needle comprising a casing body of elongated rectangular form with a groove in its upper two-thirds portion, the head of the needle forming a hook for picking up the thread and the body having a cross-section of elongated U-shape at the groove. In the interior of the groove there is slidably arranged a plate likewise of rectangular and elongated form and provided with a lug projecting laterally from the body of the needle. The needle is provided at its lower portion with a lug for co-operation in the course of its passage on the cams of the working system of the machine during its needle raising and lowering action, the plate likewise co-operating by its lug with positioning stops of the working system of the machine in respect of the opening and closing, as necessary, of the hook of the needle.

Abstract: A loop-controlled slide needle for the forming of loops by a loop forming textile machine, comprising a shaft, a hook integral with one end of the shaft, the hook having a tapered free end, the shaft tapering in the plane of the hook at the juncture of the shaft and the hook, a longitudinal groove formed in the shaft, and a slide bar slidably mounted in the groove for movement between one position in which the slide bar closes the hook and another position in which the slide bar leaves the hook open, the slide bar having an end which faces the free end of the hook and which has a recess for receiving the tapered end of the hook when the hook is closed by the slide bar.

Abstract: The closer mechanism of a warp knitting machine equipped with slide needles includes an apparatus which allows the closers to automatically align themselves with respect to the slide needles. The self-aligning apparatus includes a closer mounting means which is slideably engagable in a slot in a closer mounting bar. As the closers engage the slide needles, the self-aligning apparatus allows the closers to become aligned relative to the needles in a position of least resistance.

Abstract: A minimum friction slider needle for use with warp knitting machines includes a shank having a slot provided therein. The bottom portion of the slot is provided with a raised portion which is the only portion of the shank that comes into contact with the slider member in operation.