Abstract: A cleaning sheet which is attached to a cleaning tool during use which comprises a wiping region having a wiping layer and attaching regions positioned on both sides of the wiping region, where a plurality of recesses are formed at intervals along boundaries between the wiping region and the attaching regions such that the recesses extend from the boundaries toward the center of the wiping region.

Abstract: A cleaner for a roving apparatus which is free from an adverse effect caused by air flow blowing along an upper surface of a roller beam rearward of the roller beam, and which, after the fibers scraped from the bottom clearer cloth are collected to the rear of the roller beam, conveys the fibers to the end of an apparatus frame. The fibers, etc., adhered to the bottom clearer cloth are scraped by a scraper to fall onto a roller beam 1. The fallen fibers, etc., and the fiber waste which tends to be accumulated onto the upper surface of the roller beam are guided to a guide rail 25 by the action of air flow blowing from an air-blowing tube, to thereby accumulate on a bottom part 25a of the guide rail 25. The fibers, etc., are conveyed to the end of the guide rail 25 by a scraper 41 moving along the guide rail 25, and then collected in a dust box provided at the end of the apparatus frame. The bottom part 25a of the guide rail 25 is located lower than the upper surface of the roller beam 1.

Abstract: The invention concerns a cleaning lip for a rotating roll of a textile machine in a rolling mill (1) for processing fibrous materials wherein the cleaning lip (9) is comprised of a combined carrying device and a lip, the length (1) of the lip (11, 23) being limited by a wiping edge (AK, AK.sub.1), and the lip is composed of plastic. On the lip (11, 23) and in proximity to the carrying device, a groove (12, 24) is placed which runs parallel to said wiping edge (AK, AK.sub.1) of the lip. Alternatively, the cleaning lip can be installed for the clearing of wrapping, in that, upon the roll (14) reversing its direction from an original direction, then the wiping edge (AK, AK.sub.1) of the lip (11, 23) swings itself out of its original roll surface contact position. Upon a subsequent change of roll rotation back to the original direction, the wiping edge (AK, AK.sub.1) also swings itself back to its original wiping contact position.

Abstract: A compression bar for use in the main drafting zone of drafting rollers of the textile industry. The invention considerably reduces deposits on a compression bar. The fixed compression bar has a rectangular cross-section, with its narrow faces being rounded off. On the other hand, the compression bar is rotatably mounted about its longitudinal axis, whereby the compression bar has preferably a circular cross-section.

Abstract: A yarn lap preventor for deflecting a parted yarn end away from an enlarged diameter area of a rotating take-up shaft of the open end spinning machine, particularly of the type for forming cylindrical yarn packages. The yarn lap preventor is preferably integrally molded plastic including a body portion and a mounting arm portion extending radially outwardly from the body portion. The body portion of the yarn lap preventor includes a tapered edge which is positioned adjacent the enlarged diameter area of the take-up shaft and preferably in closely spaced apart relation from where the advancing yarn leaves the enlarged diameter area. The body portion of the yarn lap preventor also preferably includes a shield portion which extends along a circumferential portion of the enlarged diameter area.

Abstract: For the monitoring of the lap formation in the case of delivery bottom rollers of drafting units, sensing elements are provided which, when a lap is formed, as a result of the enlarged diameter at the delivery bottom roller, are moved radially away from this delivery bottom roller. The sensing elements are used as switching elements for an electric circuit to which a number of sensing elements, and preferably all sensing elements of the spinning machine, are assigned. When a lap is formed, the assigned electric contact is opened by the shifting movement of the sensing element so that the electric circuit is interrupted. The interruption of the electric circuit causes the triggering of a signal.

Abstract: A clearer device for removing accumulated debris on a draft roller has a clearer pad member mounted in a support frame which pivots so as to permit the clearer pad member to come into and out of contact with the draft roller thereby allowing accumulated wastes to escape. A stopper plate is biased against the draft roller by the clearer pad member thus keeping the clearer pad member in contact with the draft roller. An elastic member protrudes from the support frame and contacts a rotating shaft which has a protrusion. The protrusion periodically engages the elastic member which pivots the support frame disengaging the clearer pad member from the draft roller and releasing accumulated wastes.

Abstract: A clearer for draft rollers is provided, wherein the material for a cloth guide urging a clearer cloth onto draft rollers is changed to an elastic element having an outer shell composed of a flexible sheet made of sponge, foam rubber, foam urethane, plastic, rubber and the like and containing gas, liquid, gel, sol, powder, fine particles, and the like disposed at the back of the clearer cloth where the clearer cloth does not directly urge the draft rollers, in an appropriate length corresponding to the draft rollers whereby the need for the work of changing the cloth guide position is eliminated even if the roller gauges between the draft rollers are changed, and which prevents scraps of fiber and dust from accumulating as floating fibers in the cloth guide.

Abstract: In the case of a drafting unit for a spinning machine comprising several top rollers and bottom rollers, continuous cleaning belts are provided which are arranged and held in such a manner that, because of the inherent weight of at least one of the deflecting rollers, they are tensioned, on the one hand, and, on the other hand, are brought to rest against the top rollers or bottom rollers.

Abstract: In the case of a drafting unit for a spinning machine, a loading support is provided which has two arms extending in parallel with respect to one another at a distance which accommodate the holding devices for the shafts of the pressure roller twins and which are reinforced to form a frame by means of cross-struts. In addition, a cover is provided which covers the loading support and the pressure rollers and which can be swiveled away without interrupting the spinning operation.

Abstract: A cleaning device for a drafting device in a spinning machine comprises a clearer device provided at a drafting device of each of a large number of spindles provided in a row in the spinning machine, and a collecting device for fiber waste which reciprocally moves along the large number of spindles provided in a row above the clearer devices while contacting with the clearer devices and exfoliates and removes fiber waste from the clearer devices for the individual spindles.

Abstract: A clearer mechanism for a draft roller, a clearer holder supporting a clearer member therein, and a suspensory member suspended from the draft roller and detachably supporting the clearer holder such that the clearer member is held against a working periphery of the draft roller. The mechanism further includes an actuating member or a restraining member projecting from either of the clearer holder and the suspensory member for displacing the actuating member or the restraining member to thereby reciprocally move the clearer holder along the working periphery of the draft roller.

Abstract: A retainer frame supportiing pat type clearer members is arranged in opposed relation to a draft roller. The retainer frame is inserted at both longitudinal end portions thereof into insert grooves of supporting brackets mounted on roller stands or draft roller bearing members placed on the roller stands. The retainer frame is formed by folding a metal plate. Each of the clearer members is formed with stopper lugs at both side edges thereof. With this arrangement, each clearer member may be easily installed into the retainer frame, and a uniform projection of the clearer member from the retainer frame may be maintained.

Abstract: Strand lap-ups may be removed from textile rolls by using the present method and apparatus while the textile rolls remain in position on the textile machine or by initially removing a roll with a lap-up thereon from the textile machine before shearing and severing the lap-up and replacing the removed roll with another roll free of any lap-ups. The present apparatus includes a wheeled hand truck with a vertical array of spaced shelves with at least one of the shelves containing replacement textile rolls and another shelf serving to receive textile rolls having lap-ups thereon. An electrically powered shear is associated with the hand truck and includes a pair of generally parallel cooperating rows of teeth facing in a common direction with the free ends of the teeth being blunt to prevent damage to the roll when being utilized to remove the lap-up from the roll.

Abstract: A draft roller in a spinning machine in which its portion in contact with a fiber bundle, i.e. the draft portion, is made relatively large in diameter, and the roller portion adjacent to the draft portion are tapered gradually away from the draft portion so that fibers wound around the draft portion are moved therefrom to the tapered portions and can be removed easily.

Abstract: A servicing device is provided for a spinning machine which includes a plurality of spinning stations, which servicing device is moveable along the spinning stations and adjustably disposed adjacent to each. The servicing device is outfitted with at least one fly catching needle connected to a rotational drive unit. The fly catching needle is arranged at a holder which is moveably mounted and provided with a driving unit so that it is adjustable along one or several predetermined paths to predetermined parts of the spinning unit and especially plural positions of a drafting unit or frame.

Abstract: In a textile machine, roller cleaning is carried out by means of a stripping knife, the front edge of which is pressed against the surface of the roller in the working position. The stripping knife, while maintaining its contact with the roller, is moved intermittently from this working position into a second working position in which the knife body touches the roller and the front edge of the knife is spaced apart from the roller. Fibers and impurities which have accumulated at the front edge as well as fibers jammed between the front edge and the roller are released as a result and are conveyed away by the roller thereby providing uninterrupted roller cleaning.

Abstract: In order to remove broken threads and debris from textile drawing equipment having a drawing cylinder, a suction pipe connected to an air pressure sink is provided with a triangular suction opening at the drawing cylinder for removing the broken threads and debris. For substantially improved performance at essentially the same air throughput, the suction pipe, in continuation of its triangular suction opening, is provided with a triangular cross-section being congruent with the triangular suction opening and extending along a major portion of the length of the suction pipe, such as to the vicinity of its connection to the air pressure sink.

Abstract: A blade structure for wiping cylinders of textile machines has a wiping blade including a mounting base along a length thereof, and a mounting bar having a longitudinal slot shaped for receiving the mounting base in interlocking engagement over its length. The longitudinal slot may have an enlargement extending inside the mounting bar along its length, and the mounting base of the wiping blade may conform in cross-section to that enlargement. When the wiping blade has a projecting free wiping lip, the mounting bar may have a leg projecting to that free wiping lip along the length of and in contact with the wiping blade.

Abstract: A drafting mechanism for a spinning machine containing a preliminary drafting zone and a main drafting zone is cleaned. There is provided an infeed roller pair comprising an upper roller and a lower roller, an exit or delivery roller pair comprising an upper roller and a lower roller, and an upper apron and a lower apron driven by an apron roller pair. The preliminary drafting zone extends between the infeed roller pair and the nip line formed by the apron rollers pressed against the upper and lower aprons, and the main drafting zone extends between this nip line and the exit roller pair. The lower apron extends beneath the preliminary drafting zone and the lower infeed roller. During operation of the drafting mechanism the lower apron is in grazing or wiping contact with the lower one of the infeed rollers. There is thus attained cleaning of the lower infeed roller and the lower apron without requiring special means for such cleaning.

Abstract: A device for cleaning the rolls of draft rolling mills of textile machines includes a support bar arranged parallel to the axis of the roll, and a cleaning fillet of resiliently deformable material carried by the support bar and having a longitudinal lip in pressure contact with the circumferential surface of the roll. The cleaning fillet has a longitudinal stiffening reinforcement in the zone adjacent the contact with the roll.

Abstract: There is provided a clearer device located above a series of draft rolls with a predetermined number of plumbs and secured inside a cover plate rotatable and removable by means of a pivot formed in part of two side plates. This clearer device is characterized in that endless clearer members stretch between intermittently driven clearer rolls and guide members permitting said clearer members to abut front top rolls fixedly secured. A pressure member is springingly held back of said clearer members to force downward said clearer members and permit said top rolls or a top apron to come into contact with said clearer members. The clearer rolls are intermittently driven by swinging a rocking lever pivoted on the shafts of said clearer rolls via an oscillation lever and rotating a ratchet gear fixed on said roll shafts by means of engaging tooth at said rocking lever.

Abstract: Pile squeezing apparatus with pile squeezing rollers between which a fiber strip can pass. Each of two stripping blades is associated with one of the pile squeezing rollers. The stripping blades is brought into pressure contact by an adjusting device, with the cylindrical surfaces of the pile squeezing rollers along their entire length. These stripping blades are listed from the rollers, and each stripping blade is movable back and forth parallel to the axis of its associated pile squeezing roller. Holders of the stripping blades are fastened to a common connecting element which is driven pneumatically. This connecting element is driven at a stroke of predetermined amplitude and frequency.