Abstract: A carding machine includes flat bars traveling in an endless path. First and second end rolls periodically reverse the travel direction of each flat bar. First and second drive shafts carry and rotate the respective first and second end rolls. An apparatus for cleaning the flat bars includes a throughgoing, eccentric aperture provided in a radial wall of the first end roll. At any time at least two mutually adjoining flat bars, situated on the first end roll, are aligned at least partially with the aperture. A suction inlet adjoins the radial wall of the first end roll for being periodically brought into alignment with the aperture as the first end roll rotates. A suction chamber is formed by a space bounded by the adjoining flat bars and a surface of the first drive shaft.

Abstract: A carding machine includes a main carding cylinder including a cylindrical jacket having an outer surface; a cylinder clothing carried on the outer jacket surface; and radial supporting elements supporting the cylindrical jacket. The carding machine further has a machine element defining a radial clearance with the cylinder clothing; two stationary lateral shield plates flanking the main carding cylinder; and an arrangement for reducing heat removal from the lateral shield plates to adapt a heat-caused expansion of the lateral shield plates to a heat-caused expansion of the main carding cylinder.

Abstract: A fiber sliver producing apparatus includes an arrangement for making a running fiber web; a transverse web gathering device gathering the fiber web; and a sliver trumpet through which the gathered fiber web passes for being densified and discharged thereby as a running sliver. The sliver trumpet has a cross-sectionally rectangular outlet opening which has a width that is at least 10 times greater than its height. The apparatus further has a calender roll pair formed of two calender rolls through which the sliver passes after being discharged by the sliver trumpet. The calender roll pair defines a bight in which the outlet opening of the sliver trumpet is disposed.

Abstract: A carding machine includes a main carding cylinder, a travelling flats assembly having a plurality of flat bars provided with a clothing cooperating with the clothing of the main carding cylinder; an endless flat bar driving element trained about end sprockets and circulating the flat bars in an endless path; a flat cleaning device supported at a location above the flat bar driving element and including a rotatably supported flat brush roller. A gearing is provided which has an input shaft connected to a power drive, a first output shaft connected to one of the end sprockets for circulating the flat bar driving element and a second output shaft connected to the flat brush roller for rotating the same. The first and second output shafts have a constant distance from one another.

Abstract: A carding machine includes a machine frame; a fiber processing roll carrying a roll clothing and having a rotary axis; and a stationary carding segment including a carrier mounted on the machine frame; and two carding elements affixed to the carrier and arranged serially as viewed circumferentially of the roll. Each carding element has an element clothing for cooperating with the roll clothing. The carding segment further has a mechanism for turning the carding elements as a unit about a turning axis extending parallel to the rotary axis of the roll for adjusting a distance of the element clothings from the roll clothing.

Abstract: A carding machine includes a main carding cylinder having a circumferential surface carrying a cylinder clothing thereon; and a cooperating with the main carding cylinder. The traveling flats assembly includes a plurality of clothed flat bars arranged in a series and a flat drive for moving the clothed flat bars in an endless path having a working path portion along which the flat bar clothings cooperate with the cylinder clothing and a return path portion; and a grinding assembly for sharpening the cylinder clothing. The grinding assembly includes a grinding flat bar adapted to be positioned in the series of clothed flat bars to be moved by the flat drive in unison with the clothed flat bars; and a grinding element mounted on the grinding flat bar. The grinding element is in a contacting relationship with the cylinder clothing along the working path portion of the traveling flats assembly.

Abstract: A traveling flats assembly of a carding machine includes first and second end sprockets; an endless belt supported by the first and second end sprockets; a plurality of flat bars arranged in a series along the belt; a coupling arrangement for connecting the flat bars to the belt for being carried by the lower belt flight through a working zone in which the flat bars cooperate with the main carding cylinder of the carding machine and for being carried by the upper belt flight through a return zone; a supporting component having an arcuate supporting surface; a first concave slide guide extending parallel to one part of a circumference of the first end sprocket for guiding and holding the flat bars as they travel about the first end sprocket; a second concave slide guide extending parallel to one part of a circumference of the second end sprocket for guiding and holding the flat bars as they travel about the second end sprocket; and a convex slide guide extending through the work zone and lying on the supportin

Abstract: A roll for advancing fiber material has a roll surface provided with a sawtooth clothing which includes a plurality of teeth separated from one another by respective tooth gaps each having a gap bottom. Each tooth has a frontal flank oriented in a direction of roll rotation and a tooth point. Each tooth having a tooth height h.sub.2 measured from the roll surface to the tooth point and a tooth gap height h.sub.3 measured from the tooth gap bottom to the tooth point. The tooth height h.sub.2 and the tooth gap height h.sub.3 are small for defining a small fill volume between teeth. Each tooth has a back angle .gamma. having a magnitude of at least approximately 90.degree. and further has a large tooth division t and a large pitch P for defining a large open space about the teeth.

Abstract: A carding machine includes a main carding cylinder having a cylinder axis and carrying a cylinder clothing on a circumferential surface thereof and a traveling flats assembly cooperating with the main carding cylinder along a circumferential length portion thereof. The traveling flats assembly includes a plurality of flat bars each having a flat bar clothing cooperating with the cylinder clothing; and a drive member for moving the flat bars in unison in an endless path; a rigid support member fixedly held on a machine frame laterally of the main carding cylinder and having a convex supporting surface; and a slide guide at least indirectly held on the supporting surface of the support member. The slide guide has a convex upper surface supporting the flat bars for sliding motion thereon and an opposite, lower surface. The radial distance between clothing points of the flat bar clothings and the carding cylinder clothing are determined and are changeable by the shape and/or the position of the slide guide.

Abstract: An apparatus for feeding fiber tufts to a fiber processing textile machine includes a feed chute having upper and lower ends; a densifying air stream generating arrangement for introducing an air stream into the feed chute to densify the fiber tufts therein; a screen forming part of a lower region of the feed chute for separating the air stream from the fiber tufts; an air removal hood immediately adjoining the screen externally of the feed chute; and an arrangement for forcing the air stream through the screen openings out of the feed chute into and through the air removal hood.

Abstract: A fiber tuft feeder includes a first chute; a feed roller supported at the outlet end of the first chute; an opening roller adjoining the feed roller and being supported below the feed roller and receiving fiber tufts therefrom; a second chute extending downwardly from the opening roller; a densifying air stream generating arrangement for introducing an air stream into the second chute to densify the fiber tufts therein; and a guide arrangement for directing the densifying air stream to flow consecutively along the feed roller and the opening roller.

Abstract: A fiber tuft feeder includes a first chute; an opening roller supported at the outlet end of the first chute for receiving fiber tufts therefrom; a second chute extending downwardly from the opening roller; a densifying air stream generating arrangement for introducing a densifying air stream into the second chute to compress the fiber tufts therein; and a guide arrangement for orienting the densifying air stream toward the opening roller to combine the densifying air stream with an additional air stream generated by the opening roller by rotation thereof, for aligning the combined air stream in a direction of the second chute and for directing the combined air stream away from the opening roller into the second chute. There is further provided an arrangement for discharging fiber material from the second chute through an outlet thereof.

Abstract: Arrangement of a multi-layer through-contacting integrated circuit board with bonding-wires extending between chip contacts and substrate contacts, particularly designed for a compact circuit assembly of signal processors in an airborne body. The substrate contacts are arranged within a narrow connector strip extending parallel to the boundary of a chip-mounting region, and are in the plane of the substrate surface at approximately the same measurement and geometric sequence as the chip contacts of the circuit. Thin conductive paths extend and spread apart in a fan-like manner from the substrate contacts in an edge strip of the chip-mounting region, and terminate at mutually offset end surfaces of through-holes or vias which have a substantially larger cross-sectional area than the width of the thin conductive paths.

Abstract: A rotary resistor or rheostat used in hearing aids worn behind the ear. Such an application necessitates a small, compact arrangement. The arrangement is provided with a supporting surface acting as a substrate with the prerequisite conductors or resistances applied to the support surface.