Abstract: A fiber infeed device supplies fiber material to a textile machine, such as a card, and comprises a driven rotatable feed roll and feed plate. This feed roll is, however, spatially fixed, whereas the feed plate is pivotable but physically immobile during detection of the thickness and thickness variations of the infed fiber material. The feed plate can be pivoted into an operating position against a stop during throughpass of the fiber material. A substantially invariable size nipping zone is thus formed between the driven rotatable feed roll and the stationary feed plate in which a property of the throughpassing fiber material representative of its instantaneous thickness and thus variations thereof can be detected. By positionally fixing the feed plate, for instance, different forces are applied thereto in the nipping zone where the fiber material is compacted. The arising variable forces enable ascertaining thickness variations of the infed fiber material.

Abstract: A carding machine has a main carding cylinder, an electromotor drivingly connected to the carding cylinder and a control device, including a memory, for controlling the rpm of the carding cyliner. The main carding cylinder has a starting phase during which the main carding cylinder is accelerated to a working rpm and a stopping phase during which the main carding cylinder is decelerated from a working rpm to standstill. The method of operating the carding machine includes the steps of storing in the memory material-specific sets of rpm values for the starting phase and sets of rpm values for the stopping phase; and controlling the rpm of the main carding cylinder in the starting and stopping phases by the control device in accordance with respective rpm values stored in the memory.

Abstract: A carding machine is provided with two doffer units. Each doffer unit comprises a doffer roller and an intermediate roller coordinated thereto, which rollers are shiftable into two different operating positions. In a first operating position, the intermediated roller is out of operation and the doffer roller works in a usual manner in combination with the main cylinder. In the second operating position the doffer roller is out of operational contact with the main cylinder and the intermediate roller, which has the same direction of rotation as the main cylinder, is positioned so as to transfer the fibers from the main cylinder to the doffer roller. The fiber fleeces leaving each of the doffer units may be combined to form a compound fiber fleece.

Abstract: A carder for manufacturing non-woven materials from fibrous material which includes at least one draw-in roller, and a licker-in roller following the draw-in roller and rotating in the same direction. There are at least two worker rollers of the same diameter following the licker-in roller, the two worker rollers rotating in the same direction and at a greater speed than the licker-in roller. At least one doffing cylinder cooperates with the last of the worker rollers. Further worker rollers follow the two worker rollers, with the various worker rollers being separated by transfer regions between adjacent rollers. The relative speeds and the spacings between adjacent rollers are adjustable to control the proportion of fibrous material that can be returned to previous worker rollers or sent to succeeding worker rollers. An air-guiding box projects into at least one of the transfer regions, the box being adjustable in height and width.

Abstract: The invention relates to a card for the production of a nonwoven fabric web. The object is to provide a new card enabling a high production rate and the manufacturing to be interrupted without any breaks in the web itself. The card comprises e.g. three main rolls (12, 17, 20), whereby slower transfer rolls (15, 16; 18, 19) acting as working rolls as well are provided between said main rolls. At least one flatting roll (23) is provided after the last main roll (20), from which roll (23) the fibers are advantageously transferred onto a conveyor wire (29) by means of an aspiration roller (28), said wire passing the fiber material web to further treatment.

Abstract: A compact carding apparatus is disclosed which includes a pair of upstanding carding cylinders (B) and (C) carried in a self-standing manner on a base frame (260). Cylinder (C) is carried generally atop cylinder (B) by mounting plates (272, 274) which allow radial movement of cylinder (C) to yield to large lumps passing between the cylinders. A chute feed (10) and coiler (192) are uniquely combined with the component arrangement in a minimum of space and in a mobile construction so as to permit movement of either the chute or coiler away for access to the apparatus. The compact upstanding arrangement provides for mounting of a number of carding elements mounted about the two cylinders which include stationary plates (40, 42, 44, 46) on cylinder (B); and revolving flat assembly (E) and stationary carding plates (96, 123) on cylinder (C). An extended fiber path (P) is defined about cylinders (B) and (C) along which a transferred fiber mass may be effectively exposed for carding on both of its sides.

Abstract: This invention relates to a device for removing short fibers from a mass of ibers. A pair of perforated cylindrical bodies are opposed to each other with a predetermined spacing defined therebetween, and static electricity is applied across the perforated cylindrical bodies. A suction-wise removing device is installed in at least one of the perforated cylindrical bodies. The initial end of a transfer conveyor is located on the surface of one perforated cylindrical body adjacent the opposed region. Short fibers contained in the mass of fibers fed to the opposed region by a feeding device are drawn into the suction-wise removing devices through the through holes in the cylindrical bodies by the action of electrostatic force and suction air currents. The mass of fibers having the short fibers removed therefrom are oriented by electrostatic force and transferred by the conveyor while being maintained in this oriented state.

Abstract: A roll carding unit, particularly for processing synthetic fibers for the oduction of non-woven textiles which includes a high-speed rotary drum and at least one worker roll rotating tangentially to the drum at a much lower speed than the latter to take up and card the fibres. Each worker roll is associated with two tile-shaped members which are disposed adjacent the surface of the drum upstream and downstream respectively of the position at which the latter touches the worker roll. The first member comprises an output section extending close to the zone of touching to convey the flow of fibers thereto and the second member comprises an input section at an angle to the surface of the drum to connect it with the surface of the worker roll.

Abstract: A compact textile carding frame and apparatus is disclosed which includes a carding machine (A) having a frame (D) which supports the carding machine in a self-standing manner with vertical carding cylinders. Cantilevered support arms (114, 116) carry the fiber feed and doffing devices. A fiber feed chute (C) is carried on a chute frame (E) having longitudinal members (130, 130a) which telescope into horizontal tracks (72, 72a) of carding frame (D). The precise working position of feed chute (C) and carding machine (A) may be fixed by their relative horizontal spacing. A coiler (B) is carried on a coiler frame (F) which pivots about a pivot (176) in and out of a precise working position with carding machine (A). An alignment and locking member (194) aligns the coiler upon return pivotal movement into the working position.

Abstract: A multiple-card, so-called "tandem card" comprising, between the combing cylinder (doffer) of the first carding drum and the second carding drum, transfer means made up of doffing, carding and cleaning members which also arrange the fibres parallel to each other.

Abstract: A method and an apparatus for avoiding periodic non-uniformities in papermaking felts by varying the width of the web going into a cross lapper.

Abstract: A method and mechanism for manufacturing long-tailed neps useful as a fill or effect material the method including feeding a synthetic or natural fibrous material to a woollen opening mechanism with its outlet closed, running the opening mechanism for a predetermined period, opening the outlet of the opening mechanism so that a rotating fan doffer roller of the opening mechanism throws therefrom a plurality of modified fibre neps, each of which has a nep-shaped region from the fibres of which extends a tail (long-tailed neps). The fibrous material can be scoured wool, a synthetic fibrous material or woollen fibres in an unclean state with vegetable matter and other contaminants entrained therewith.

Abstract: Method for the manufacture of formed fabric from fibrous material by means of a carder or the like, whereby the fibrous material is carded upon employment of at least two working rollers of the same diameter running in the same direction as one another, characterized in that the fibrous material is conducted over at least three working rollers residing in mutually adjustable engagement with one another, being conducted thereover under adjustable, partial return storing; also a carder for the implementation thereof.

Abstract: A drum for carding machines, which has a casing made of sheet steel. The two ends of the cases are supported by two hubs which are attached to the drive shaft. The interior of the casing is divided internally into cells by plurality of radial support elements which are connected rigidly to the inside of the casing and to the drive shaft. The support elements may be connected to a central support pipe which connects the two end hubs or the support elements may connect directly with the drive shaft.

Abstract: A method for processing staple fibers on a roller card including a carding cylinder and a plurality of working points provided at the periphery of the carding cylinder. Each working point is formed at a corresponding pair of worker rollers and clearer rollers. The method comprises circulating the fibers about the working points for different circulation times whose mutual ratios do not form integers; and rotating a working roller at a speed of between twenty meters per minute and ninety meters per minute.

Abstract: A carding machine is provided with two doffers. At least one of the doffers has an intermediate roller coordinated thereto. The doffer roller and the coordinated intermediate roller are shiftable into two different operating settings. In a first operating setting the intermediate roller is out of operation and the doffer roller works in a usual manner in combination with the main cylinder. In the other setting the doffer roller is out of operational contact with the main cylinder, and the intermediate roller, which has the same direction of rotation as the main cylinder, is positioned so as to transfer the fibers from the main cylinder to the doffer roller. The second doffer roller may have a second intermediate roller coordinated thereto. The fiber fleeces leaving both doffer rollers are combined to form a compound fiber fleece.

Abstract: In a carding machine the distance between the doffer roller and the main cylinder can be adjusted to a distance such that the card clothing of the doffer roller is no longer in its operating position with respect to the main cylinder. Further, there is provided an intermediate roller, which, when the doffer roller has been moved away from the main cylinder, is brought into a position such that its card clothing meshes with the card clothing both of the main cylinder and of the doffer roller.

Abstract: In the present invention, a plurality of fixed flats are disposed in juxtaposition to one another, and an opening 5 to 33 mm wide is formed between each pair of adjoining fixed flats, in such a manner that the dust is entrained in the discharge air current produced at the upstream side of the opening and extracted out of the opened fiber mass.

Abstract: In a card, to avoid passage of fibers or fiber flocks over the edge of clothing into a gap, a covering band is pressed against an internal surface of the fiber-guiding roll or cylinder and a surface lying opposite the fiber-guiding roll. The covering band covers the gap between the fiber-guiding roll and a side wall portion. Two forwarding grooves, lying opposite one another in the gap and having transport surfaces lying opposite one another in crossed fashion, return fiber flocks which may possibly pass into the gap to the upper surface. A forwarding pin is set into the roll surface 7 of the fiber-guiding roll outside the edge of the clothing at such a inclination that fibers or fiber flocks which can pass into this region are transported by such pin towards pointed clothing of card flats.

Abstract: Carder for manufacturing non-woven formed fabric from fibrous substances comprising a plurality of principal rollers and workers and clearers working with said principal rollers, comprising a draw-in roller (1) and a licker-in (2) running in the same direction and with high drawing, comprising a first principal roller (3) running in a direction opposite the licker-in (2) and with low drawing, comprising at least one pair of rollers consisting of a worker (4) and a clearer (5) cooperating with said first principal roller (3), and comprising a first matting roller (8) running in the same direction as said first principal roller (3) and with low crushing or with low drawing, whereby the draw-in roller (1), the licker-in (2), the principal rollers (3, 9), the matting rollers (8, 12), the doffing cylinders (13, 18) and the second crushing cylinders (15, 20) are driven by respectively separate, independently controllable motors such that a change of the speed of the principal roller (3) effects a change of the spee

Abstract: Apparatus for transmitting signals between a fixed station to a mobile station in a power driven textile machine, e.g. a bale opener for textile fiber bales wherein the bale opener including a movable delivery member. The fixed station includes a transmitter and a receiver and the mobile station includes a transmitter and a receiver with each transmitter being disposed opposite a receiver of the other station. The transmitter includes a clock pulse generator which feeds a counter at whose output a plurality of bits are formed for addresses, with these bits being fed to a multiplexer. In dependence on the address bits, a certain data input is selected at the multiplexer so that an electrical connection is established between the selected data input and a release or gate unit which releases the address at the output of the counter to a transmitting encoder if a signal is present at the selected data input.

Abstract: A carding engine having a rotatable hollow carding cylinder (5). The inner surface of the cylinder is formed with a fluid-conveying pathway (18 to 21) in a pattern such that fluid circulated through the pathway will maintain the surface temperature of the cylinder substantially uniform. Means are provided for circulating fluid through the pathway in such a way that during operation the pathway is maintained full of fluid.

Abstract: A safety system operatively connected with a door, includes an air line, a pressure difference generator communicating with the air line and operatively connected with the door for altering the pressure of air in the air line when the door moves from a closed position to an open position and a pressure-responsive switch operatively connected with the air line for presenting an output indication in response to the alteration of air pressure in the air line.

Abstract: In a carding machine having cylinders, which are provided with a clothing of a saw-tooth wire helically wound thereon, carding elements are provided having saw-tooth wire sections, which are arranged at an acute angle to a plane that is transverse to the axis of rotation of the cylinders.

Abstract: A carding machine has a carding cylinder, a lickerin cooperating with the carding cylinder and defining a corner zone therewith and a card screen extending underneath the carding cylinder including the corner zone. The card screen has a screen face which is oriented towards the carding cylinder and which has a throughgoing slot in the vicinity of the corner zone. The slot extends over the screen width and constitutes the sole discontinuity in the screen face.

Abstract: An accident prevention system for machines having one or more movable components, such as rotatable components, has a cover by means of which access may be had to the movable component and which can be moved to an open position. A latching arrangement normally holds the cover in closed position. An electric circuit is provided including a source of electric energy, a normally open switch and an electrically energizable actuating element which can deactivate the latching arrangement. A detector senses movement of the movable component and, when it determines that the movable component is stationary, completes the electric circuit up to the switch so that when the switch is subsequently operated, the actuating element is actuated and disengages the latching arrangement to permit the cover to be opened.

Abstract: A drive for a plurality of rotary components of a carding machine comprises a first gear connected to and driven by a motor, a second gear affixed to a shaft and connected slip-free to the first gear to rotate the shaft, a third gear affixed to the shaft, fourth and fifth gears connected to respective first and second rotary components of the carding machine and driven slip-free by the third gear, a sixth gear affixed to the shaft, seventh and eighth gears connected to respective third and fourth rotary components of the carding machine, an additional shaft connected to a fifth rotary component of the carding machine, a ninth gear affixed to the additional shaft; the sixth gear driving slip-free the seventh, eighth and ninth gears, a tenth gear affixed to the additional shaft; and an eleventh gear connected to a sixth rotary component of the carding machine and driven slip-free by the tenth gear.

Abstract: A dirt separator which is arranged between adjacent carding plates of a carding device and which comprises a knife blade and a collecting rail. Each of these elements is radially adjustable with respect to the main cylinder of the carding device. The knife blade, the collecting rail and a cover form a vacuum chamber that is adapted to be connected to a vacuum source. A longitudinal gap or clearance between the knife blade and the collecting rail serves to extract the dirt or trash from the treated material.

Abstract: A carding apparatus is illustrated wherein trash removal means is provided utilizing a carding flat means together with a first plate carried for vertical adjustment relative to the flat means for varying the setting between the plate and a clothed carding cylinder. A second plate has means for setting a surface thereof in close proximity to the surface of the clothed cylinder. A relatively wide setting is provided for the first plate and a slot is formed by the first and second plates which will be self-expelling of trash, short fibers and the like by reason of such wide setting of the first plate followed by the close setting of the second plate acting as an air barrier upon the opened fibers carded by the carding flat means. A suction plenum provides a system of removing a large part of the already expelled trash so as to greatly improve the carding operation while minimizing loss of desirable longer fibers.

Abstract: An assembly is illustrated for use in connection with the main cylinder and the like of a carding machine wherein an annular shroud has a segmental portion of reduced thickness for providing a ledge type bearing surface for support and securement directly to the card frame, the shroud also having a bearing receiving recess so that the cylinder mounting shaft may be supported within the shroud. The bearing has a pair of parallel inserts, spaced on each side of the shaft, having thickened inner portions for engaging the inner race of the bearing for removing the bearing while the cylinder is carried within the card frame. The shroud provides an arcuate mounting surface for positioning stationary card flats facilitating the provision of means for resiliently carrying the flats yieldably urging them downwardly while permitting adjustment of the settings.

Abstract: A carding machine drive having an instantaneous braking system is illustrated wherein the driven main cylinder and carding components driven therefrom may be stopped instantaneously in about three seconds or less avoiding breakage of the web. A disk element is employed having opposed braking surfaces which are clampingly engaged by caliper means which are fixed to the card frame. The disk element has fixed connection and transverse alignment concentrically with the main cylinder. By driving carding components including the doffer directly from the main cylinder, simultaneous stopping thereof may be achieved. By utilizing conductor bars on component covers removal thereof automatically institutes braking.

Abstract: A carding machine for textile material has a taker-in cylinder, a main cylinder and a doffing cylinder supported by a frame comprising of two frame side members. The frame side members are costructed from sheet steel and are interconnected by two sheet steel cross-members of hollow cross section the ends of which are welded to the inwardly facing surfaces of the frame side members.Preferably, the frame further includes a base member welded along the bottom of the inwardly facing surfaces of the frame side members.

Abstract: A device for obtaining a control signal corresponding to the density of the fibre covering lying on a fibre carrying element such as the cylinder, the licker-in, the take-off roller, or the doffer of a card. The device includes a holder which extends over the width of the fibre carrying element to span the width of the fibre covering on the fibre carrying element. This holder contains means responsive to the density of the fibre covering which produces electric output signals corresponding to the density of the fibre covering.

Abstract: A card has a frame including two parallel-spaced, rigidly supported side walls having lateral surfaces, a lickerin and a doffer disposed between the side walls and mounted on the lateral surfaces thereof; and carding organs situated between the lickerin and the doffer. At least some of these carding organs are, with their lateral end faces, disposed immediately adjacent the lateral surface of the respective side wall and are laterally mounted on the side walls.

Abstract: A fiber transfer apparatus is illustrated including a doffing and feeding apparatus wherein opened fibers after being condensed are doffed by the action of a doffing member and a drafting roll prior to being passed over the nose of a fixed plate from where they are immediately subjected to a carding action.

Abstract: A carding machine waste remover includes a continuously evacuated chamber containing an adjustably movable array of parallel bars immediately adjacent the surface of revolution of a rotating card cylinder. The bars are each parallel to and equidistantly spaced from the card cylinder axis of rotation. Each bar is of triangular cross section and extends along the length of the card cylinder. One edge of each triangular bar is positioned as a knife edge for stripping small particles of cotton leaf and stem or the like from the outer surface of the cotton fiber web wrapped around the card cylinder. The waste remover is located immediately above the interface area of the card cylinder and its associated doffer cylinder. The array of parallel bars is adjustably mounted between a pair of trunnions each located at respective distal ends of a pair of parallel arms having their other ends pivotally mounted to the carding machine frame.

Abstract: A carding machine has a card cylinder, a doffer cooperating with the card cylinder and a cylinder screen situated underneath the card cylinder and generally conforming to the surface curvature thereof. The cylinder screen has a screen face including a screening portion and a screenless terminal portion. The terminal portion is arranged adjacent the doffer. At least one slot-shaped opening is provided in the screenless terminal portion of the cylinder screen. The opening has a length dimension which is oriented parallel to the width dimension of the cylinder screen.

Abstract: An assembly is illustrated for use in connection with a main cylinder and the like wherein an annular shroud has a segmental portion of reduced thickness for providing a ledge type bearing surface for support and securement directly to a frame, the shroud also having a bearing receiving recess so that the cylinder mounting shaft may be supported within the shroud. The bearing has a pair of parallel inserts, spaced on each side of the shaft, having thickened inner portions for engaging the inner race of the bearing for removing the bearing while the cylinder is carried within the frame. The shroud provides an arcuate mounting surface for positioning stationary card flats facilitating the provision of means for resiliently carrying the flats yieldably urging them downwardly while permitting adjustment of the settings.

Abstract: A carding machine drive having an instantaneous braking system is illustrated wherein the driven main cylinder and carding components driven therefrom may be stopped instantaneously in about three seconds or less avoiding breakage of the web. A disk element is employed having opposed braking surfaces which are clampingly engaged by caliper means which are fixed to the card frame. The disk element has fixed connection and transverse alignment concentrically with the main cylinder.

Abstract: Fibers are carded to produce a web on a carding machine on which at least one gaseous barrier is produced near at least one end of the main cylinder roll of the carding machine so that the edge of the web of fibers on the main cylinder roll is maintained a distance from the end of the main cylinder roll.

Abstract: In a duo-card engine, a novel arrangement of crush rolls and toothed roller are used to break up the fibre web into individual fibres and fibre groups to free them from dirt, after which the fibres are reassembled on the surface of a perforated vacuum cage adjacent to and downstream of the toothed roller. This sequence of operations produces a yarn, not only of more regular texture but yarn in which the amount of trash, dust and small fibres can be reduced substantially by one half.

Abstract: A plate having a plurality of diagonal grooves adjacent opposed lateral edges of the card cylinder for directing air current of a carding machine from the lateral edges towards the center of the leading edge of the main cylinder screen.

Abstract: A method for driving a Tandem carding machine provided with a fiber tufts supply means, a first and second carding machine, a first web transfer means disposed between the first and second carding machine, a second web transfer means for transferring a continuous web to a coiler motion mechanism, in which the lickerin roller, carding cylinder and a flat mechanism of the second carding machine are driven by a second driving motor while the other rotating elements are separately driven by a first driving motor. To control the sequential motion of the above-mentioned two series of driving mechanisms, said first and second driving motors are electrically connected.

Abstract: Safety device of a carding machine provided with a pair of crushing rollers wherein a scraping plate is urged to the cylindrical surface of each crushing roller for the entire length thereof. Each scraping plate is turnably supported by a pin so that it can be moved away from the corresponding crushing roller when required. The turning motion of each scraping plate away from or toward the corresponding crushing roller, can be carried out simultaneously by means for setting the position of each scraping plate and a manually operable handle which actuates the setting means. The main driving motor of the carding machine is connected, in series with a main switch and a control switch, to an electric source. The control switch is closed when the handle is operated so as to fix the scraping plates in contacting condition with the corresponding crushing rollers and, on the other hand, the control switch is opened when the scraping plates are moved away from the corresponding crushing rollers.