Abstract: In a needle for a needle bar or rod, the needle comprising a fastening area at its foot and above this an actively combing tip area, the needle being a stamped element and the fastening area having a recess closed or open outwards for the needle to be slipped on a support rod, the recess being non-circular or having projections or indents corresponding to the cross-section of the support rod such that the needle is disposed non-rotatably on the support rod, it is provided, with a view to convenience of replacement and simplicity of design of a needle bar, that for textile combing machines, in particular drawing equipments, for intersecting machines, feed combs, top combs, round combs or the like, the tip area is distinctly higher than the fastening area and is made approximately oval in cross-sectional shape by stamping.

Abstract: Disclosed are various needle-based devices for individualizing single fibers and other entities from a fibrous mass, particularly for testing purposes. In one embodiment, an accelerated pin drafting machine has a plurality of combing elements which sequentially pierce a fiber mat and move within a drafting zone with increasing distance between adjacent combing elements. The accelerated pin drafting machine in turn feeds a fiber individualizer. In another embodiment, a comb-like needle sampler is provided which moves past a perforated plate such that portions of fibrous material protruding through the perforations are loaded onto the needle sampler. An elastomer clamping feedroll moves against the needles to clamp the sample, and then rotates to gradually feed fibers from the sampler. As an alternative to the elastomer clamping feedroll, a clamping block presses against the needles, and the needles are slowly retracted to gradually release fibers.

Abstract: A method for producing uniform nonwoven webs from a supply of unordered fibre material includes discharging a quantity of fibre material onto a needle-type transport system having needles which are movable along a transport path, taking-up the fibre material by way of the needles on the needle-type transport system, transporting the fibre material in the needle-type transport system to an end of the transport system, discharging the fibre material onto an opening roller, separating the discharged fibre material on the opening roller and transferring the fibre material which has been separated on the opening roller onto a cylinder. An apparatus for producing uniform nonwoven webs includes a needle-type transport system for transporting fibre material along a transport path, an opening roller positioned along the transport path adjacent one end of the transport system and a rotatable cylinder positioned adjacent the opening roller for receiving the fibre material from the opening roller.

Abstract: In a method for cleaning the needle bar, in particular a top comb for textile machinery, comprising at least one row of needles or needle-like stamped elements, which are held between two cover plates, whereby the needle tips protrude, while forming free passageways, by a certain amount between those free passageways beyond the lower edge of the cover plates, and whereby compressed air is guided through the free passageways, it is provided, in order to attain an optimum guidance of the fiber band and a complete combing, that depending on the working cycle of the machine, into which the needle bar is inserted, the free passageways between the needles, respectively the region before the needles are alternately activated with overpressure or underpressure.

Abstract: In a needle bar carrier with a needle bar comprising a plurality of needles anchored in a plastic bar, the needle bar being attachable to the needle bar carrier by form locking and for the purpose of achieving a very stable connection between the needle bar and the needle bar carrier along with a simple and defined release it is provided that the plastic bar is arrested in holes of the needle bar carrier by the plastic material of the plastic bar being thermally or chemically joined by solving or melting while forming a projection extending into or beyond the hole.

Abstract: Air channels (11) are provided in a needle strip for the removal of contaminants that are deposited in the open passageways (F) between the needle points (4), which air channels can be connected to a compressed air source or a vacuum source via an air chamber (15). With die-cut and swaged needles (1), the air channels (11) are preferably formed by an extension of the swaging (10) into the region between the cover plates (2,3). Pursuant to the cleaning process, compressed air, preferably pulsed, is directed at the point region for cleaning purposes.

Abstract: There is disclosed a picker assembly comprising a picker bar having a T-slot therein and a plurality of picker teeth. The picker teeth have bases in the slot with wedging surfaces thereon for maintaining the teeth against a surface of the bar when the tooth working portion strikes the work, to prevent movement of the bases, and wearing of the teeth bases and picker bar.

Abstract: A drawhead for drawing equipment having a plurality of fallers or the like disposed parallel to each other along a closed guideway at a predetermined distance from one another. In such a drawhead it is expected to achieve the transfer of large forces parallel to the guideway in a simple manner, while avoiding all sliding friction. This is achieved by equipping each faller with at least two pivot bearing elements of differing diameters placed axially next to each other in such a way that the pivot bearing elements of adjacent fallers are disposed in such a way that two adjacent pivot bearing elements with smaller diameters adjoin each pivot bearing element with a larger diameter and that two pivot bearing elements having larger diameters adjoin each pivot bearing element with a smaller diameter.

Abstract: The invention concerns the gilling area of needle bar drawing devices (gill boxes) for card slivers which gilling area comprises needle bars provided with needles, carried by flexible driving elements and rotatingly driven. In a gilling area whose needle bars are carried by belts, especially toothed belts, as driving elements, it is suggested to arrange support elements for the needle bars to be clamped positively to the driving element.

Abstract: In a needle bar drawing device (gill box) for the drawing of card slivers bars carrying needles are led without being connected to each other. In a device which, according to today's terminology, is to be identified as a push bar draw frame pairs of driven toothed discs engaging each other with their toothed peripheries are so arranged that they almost totally cover the whole orbit of the needle bars with their toothing engaging the shafts of the latter.

Abstract: A stretch head for a stretching mechanism includes a plurality of needle rods which move along a generally planar working path and a return path. Linear motor means are operable to move the needle rods along the planar working path along material to be warped and along the return path, and screw means move the needle rods between the two paths.

Abstract: In an needle bar drawing device or gill box comprising needle bars carried by chains is arranged a bristle mat consisting of one or few layers of bristles extending along the whole needle field up to the proximity of a clamping gap formed between a pair of exit rollers. The bristle mat is penetrated by the needles of the needle field and creates a stripping effect at the disappearing position of the needles in the region of the nip, this stripping effect avoiding the conveying of fibers freely swimming in the sliver, and thus the danger and disadvantage of any lap forming.

Abstract: An improved gill box with rotating heads, which comprises a plurality of needles acting on an assemblage of slivers fed substantially continuously and consists of a feeder group, a group which controls the fibers and is constituted by two heads with combs superimposed one above the other and rotating in cooperation, and a drawing group.

Abstract: In order to overcome problems associated with the fitting of a pinned plastics strip into the bar of a faller bar, hot melt adhesive is applied to the strip before the strip is placed in the groove in the bar, and the adhesive is activated by heat derived from the bar. The bar may be already heated when the strip is fitted into the groove, although it could be heated after the strip has been placed in the groove.

Abstract: The invention concerns a needle bar draw frame or gill box with a needle field or gilling area of needle bars carried by chains. With the aim of attaining the usual performances in respect of speed and drawing ratio at the same quality also in the case of voluminous short-staple slivers with draw frames operating with an upper and a lower needle field, control means engaging from above into the needle field are used in a draw frame provided merely with a lower needle field. These control means are constructed as bristle-like holding down devices which are arranged particularly immediately upstream of a pair of drawing rollers and possibly shortly downstream of a pair of entry rollers, while the central region is controlled in the usual manner by a bar roller or bar chain.

Abstract: A needle rod for use in needle bar drawing devices, also termed and known as gill boxes is proposed to comprise needle plate segments (7) which are releasably connectable to a carrier bar (2) and which have a profile of T, Z or Y shaped cross-section. The needles (12) are bent approximately at right angles in the region of their shafts (13) and are securely connected to the carrier plate (8) not only with the free ends (14) of the same but also with the parts of the shafts (13) directed towards the needle tip (15).

Abstract: A high speed gill box having an upper head and lower head each of which contains a compliment of individual unconnected faller bars constrained to move in a smooth closed loop path. Each head is constructed to engage the associated faller bars outside of the pinned area to guide the faller bars through the closed loop path. Cam tracks are provided outside of the faller bar guide paths for engaging a crank arm extending away from the main pinned portion of each faller bar to provide proper orientation as the faller bar moves along its fixed path. Sprocket drives are provided in each head for engaging some of the faller bars and pushing them along the closed loop path. The pushed faller bars, as they exit the drive sprockets, push the faller bars ahead of them through the closed loop path. The drive sprockets are mounted at one end of the drafting zone while idler sprockets are mounted at the other end of the drafting zone to facilitate movement of the faller bars from the drafting zone.

Abstract: A releasably interlockable needlestrip and needle-carrier for textile machines includes a generally U-shaped elongated needle carrier having legs defining a longitudinally extending recess therebetween. A plurality of protuberances are provided on one of the legs projecting into the recess. A bracket member is positionable in abutting relationship with a needlestrip and one of the legs thereof is positionable in abutting relationship with the top face of the needlestrip, the needlestrip and bracket member when positioned in such abutting relationship being dimensioned and configured to fit within the recess of the needle carrier.

Abstract: In gilling or stretching apparatus wherein a plurality of pin bars are driven and guided in a circuitous path including a stretching run and a return run, with threaded spindles engaging the pin bars along said runs, means are provided to retard the speed of movement of the pin bars before they engage the drive spindles so as to decrease noise in the operating apparatus and reduce wear of the pin bars and spindles. Such retarding means comprises cushioning wheels disposed at the entry end of the stretching run and cushioning rollers disposed at the exit end of the stretching run. The cushioning wheels and rollers have cushioning surfaces arranged to be engaged by the moving pin bars at an acute angle to the tangent to the surface at the point of engagement. Means are provided to insure that the cushioning wheels and rollers rotate at a slower speed than the speed of the travelling pin bars.

Abstract: The control system is constituted by a succession of elongate parallel control elements, made of elastomer, which extend in directions transverse to the direction of the path of the fibres to be controlled and which each have a work face and an opposite face provided with at least one longitudinal fixing rib engaged in a longitudinal slit of a tubular support part and terminated by a retention head in the said tubular support part, the drawing device including means for guiding, driving and orientating all the aforesaid tubular support parts, to ensure the displacement of the said control elements for the fibres while abutting against the other control system of the drawing device.

Abstract: A gilling machine having a pair or set of spirally threaded faller screws for advancing gill bars spanning the space between the screws and advancing them in a forward direction with portions of the screws held or engaged by the spiral threads of the faller screws. A first pair of axially spaced wheels which have peripheral notches thereon corresponding with the pitch of the faller screws receive the gill bars from advance or upper faller screws and transfer them to a pair of parallel spaced backward-movement or lower faller screws that move the gill bars in a direction opposite to the forward movement, namely a backward direction. A second pair of axially spaced wheels receive the gill bars from the backward-movement faller screws and transfer them to the forward or advance faller screws.