Abstract: A novel fiber drafting system disclosed according to which a textile fiber strand is passed through a plurality of pairs of drafting rollers wherein one of each pair of drafting rollers includes a circumferential groove for receiving the fiber strand and the other roller includes a circumferential rib for compressing the strand in the recessed groove to a cross-sectional shape substantially conforming to the groove. The plurality of pairs of rib and groove rollers are rotated such that each successive pair along the drafting pathway of the textile fiber strand has a greater circumferential speed than the preceeding pair of drafting rollers. In this fashion a textile fiber strand is compressed into a cross-section configuration which substantially equalizes the pressure on all fibers being drafted and thereby provides a more uniformly drafted strand.

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: An apparatus for regulating the rpm of the feed roller of the tuft feeder and having an rpm measuring device connected to at least one card roller for generating a first signal representing an operational magnitude of the card roller; a signal generating device connected to an output of the rpm measuring device and arranged for generating a second signal as a function of the first signal; a pressure sensing device for sensing pressure in the feed chute and for generating a third signal representing the pressure; a regulator connected to an output of the pressure sensing device and arranged for generating a fourth signal as a function of the third signal; and an integrating device connected to an output of the signal generating device and an output of the regulator for receiving the second and fourth signals and emitting a fifth signal as a function of the second and fourth signals. The integrating device is connected to the output amplifier for applying the fifth signal thereto.

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 fiber carding web emerging from a pair of crush rollers is taken off and is gathered into a fiber sliver by at least one endless conveyor belt which is guided by means of a first and a second guide roll and is tangent to the pair of rollers across their feeding width. In order to ensure that the carding web is taken off correctly when the relative axial position of the rollers to each other changes, the axis of the guide rolls is supported so that it can be locked in the changed axial position of the rollers and the conveyor belt is guided over a driving roll removed from the plane connecting the axes of the guide rolls.

Abstract: Device for producing superposed webs of non-woven fabric on the exit side the end comber of a carding machine, particularly for feeding a needle quilter for felting. The device comprises an adjusting unit including a series of conveyor belts movable parallel to the direction of arrival of the web, and a traversing unit fed by the adjusting unit and including a feeder belt having a first section movable parallel to the conveying direction of the adjusting unit and a second section movable at right angles to this direction for feeding a belt delivering the web with fibres arranged longitudinally. The traversing unit is capable of performing an alternating rectilinear movement in a direction parallel to the conveying direction of the adjusting unit, in synchronism with the latter, and feeds the web to an end layering belt, which belt is movable parallel to the delivery belt and has a width corresponding substantially to the distance travelled by the traversing unit.

Abstract: An apparatus for forming fibre webs including a first component and a second component in the form of two textile fibres differentiated by their average fibre length or a textile fibre and wood pulp, said apparatus including a card means having a discharge zone, means for feeding said second component to said discharge zone, and means for condensing the fibres in said discharge zone whereby a highly uniform fibre web is obtained.

Abstract: A web weight control system and method are disclosed wherein the actual weight of fibers supplied to a carding machine (36) are measured in a static condition in a weight pan (20). The supply roll (14) is controlled by computer (A) to supply a preset weight of fibers to weight pan (20). The weighed fibers are supplied to an apron feed (22) and to a pneumatic delivery system (28). Apron feeder (22) may be adjusted by adjusting the speed of an apron feed roll (50a). To maintain the fiber in a storage chute feed (32). Pressure sensed by a pressure gauge (52) is used to indicate quantity of fiber in chute feed (32) and pressure signal (53) is fed to computer (A) for control of delivery roll (50a). Card feed roll 62 which feeds fibers in the form of a batt (35) from chute feed (32) to the carding machine is controlled by computer (A) in synchronization with the speed of the carding machine as sensed by doffer roll (68).

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: Method for determining whether textile staple fibers having crimp therein, either natural or man-made, have a weighted-average cohesion number of from 14.2 to 31.75 centimeters (5.6 to 12.5 inches) by initiating gas impingement contacts at successively increasing different pressure levels against a carded web of staple fibers to cause in the carded web the formation of visible bulges until the bulges are eventually ruptured 80 to 100% for a particular pressure level, and then recording the pressure and number of ruptures from each level and determining therefrom the weighted-average cohesion number.

Abstract: A randomizing web former is provided for producing webs with greater degrees of isotropy than heretofore by including both a carding element, such as a worker roll or a carding segment, and an aerodynamic, centrifugal randomizing web former, employing a jamming action and then free flight of the web to randomize, both on the same toothed cylinder. Usually, the fibrous flock is worked into an array of axially parallel fibers by an assemblage of sequentially arranged carding cylinders and cooperating carding elements such as carding worker rolls and or stationary carding segments similar to flats but of complementary arcuity to the cylinders. Thereupon the web is moved to a toothed roll having both a carding element and a web former either in that sequence or combined so as to act sequentially or concurrently. The resultant randomized web is then doffed.

Abstract: In conjunction with a randomizing web former is disclosed means for regulating the pressures subsisting within the jamming slot of the randomizing web former formed between the arcuate toothed surface of a carded staple fiber bearing cylinder and a confining surface mounted adjacent thereto. The regulating means includes a housing one wall of which is perforate so as to provide gaseous intercommunication with the interior plenum thereof, in which resides a pressure sensing element interconnected with a control element such as a preprogrammed computer. The plenum intercommunicates with a pressure adjusting device, and the latter is operatively interconnected with the control element.

Abstract: An apparatus for introducing a relatively loose pile fed from a carder or the like via a conveyor belt or the like into a following roller system, particularly a calender, upon height-reduction of the pile before entry into the roller system, is provided comprising a pile guiding fixture preceding the roller system for compressing the pile while pressing the pile against the conveyor belt.

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: An electronic control system for a machine which forms fiber material into a length of silver which is delivered into a storage can, and which includes a carding cylinder, a feed roller for supplying fiber material to the cylinder, a doffer for removing a web of carded fibers from the cylinder and means for removing the carded fibers from the doffer and forming them into the length of fibers. The system includes monitoring devices for monitoring the operation of the machine, controllable regulator devices connected for controlling the operating speed of at least one of the doffer and feed roller, and a microcomputer connected to the monitoring devices and the regulator means for controlling the regulator devices.

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: A fiber transfer system for feeding fibers to the needles of a sliver high pile fabric circular knitting machine, in which the width of the fiber transfer path from the feed rolls to the needle line at the doffer is constant. Adjustable sliver entrance guides accurately direct the roving into the feed rolls and determine the location and width of the fiber transfer path. A continuous film of fibers of selected width and uniform density is transferred from the feed rolls via the main cylinder and doffer to the knitting machine needles. The main cylinder preferably is of a greater axial width than the doffer. It is covered by a narrow, elongated strip of wire-covered clothing wrapped helically around its periphery. The doffer is enveloped by straight wound card clothing, preferably constituted of a rectangular segment of wire-covered clothing having its opposite ends abutting on the doffer. The invention maximizes utilization of the fiber transfer area available to the knitting machine.

Abstract: A method and apparatus for forming a sliver from a web of fibres leaving the upper part of a horizontally extending delivery roller (2) of a cotton type carding machine. The web is delivered downwardly from the upper part of the delivery roller into proximity with a surface of power driven selvedge support means, in one embodiment conveyors (9 and 10). The surface of the selvedge support means moves at a level below the upper part of the delivery roller in a direction that is generally longitudinal to the delivery roller and into a sliver-forming nip (15). The downwardly travelling web passes through the nip and tension is applied to the web by the action of the nip. The sliver is delivered from the nip (15) and may pass directly to calender rolls (27) immediately downstream of the nip. If parts of the web should break, the selvedge support means will guide these back into the nip to regain normal running.

Abstract: A regulating apparatus for obtaining a uniform sliver delivered by a carding machine includes an rpm setter connected to a roller drive of the carding machine for determining an operational speed for the drive, a signal generator for producing a first signal as a function of actual properties of the sliver and a PI-regulator having a component determining a regulating time constant. The PI-regulator is connected to the signal generator for receiving the first signal and for generating a second, regulating signal. Further, the PI-regulator is connected to the drive for applying the second signal thereto. A regulating time constant setter is operatively connected to the component which determines a regulating time constant. The rpm setter and the regulating time constant setter cooperate for adjusting the regulating time constant setter as a function of adjustments of the rpm setter, whereby the regulating time constant of the PI-regulator is varied as a function of the rpm of the fiber-engaging roller.

Abstract: Apparatus for forming fiber material into a length of sliver.

Abstract: A device for condensing a fleece emerging from a carding engine or a like machine has two adjoining and aligned sets of rollers (5, 5', 5", 5"') having hollows along their generating lines and which are rotated about their own axes perpendicularly to the plane at which the fleece is doffed, and which are spaced apart relative to a fleece doffing roller (3). The rollers belonging to a set rotate in a direction and those of the adjoining set are rotated in the sense opposite to the former. The rotation of the rollers of two adjoining sets can be concordant in direction so as to provide a central doffing spot (13) between the two sets, or such a rotation can take place in directions opposite to one another and diverging, so as to provide two doffing spots (13,13') placed laterally of the two roller sets. By the rotation of such rollers two airstreams are originated, whereby the fleece is airborne and so conveyed towards the doffing spot(s) where a fibre sliver is formed to be forwarded to a condensing unit.

Abstract: A cylindrical condenser screen is mounted to rotate adjacent a fiber supply, and around a pair of vacuum plenums, one of which has a generally rectangularly shaped slot extending axially of the screen adjacent its inside surface. A low suction in said slot draws fibers from the supply and onto the screen in the form of a nonwoven web. A cover that overlies the screen and the low suction slot has thereon at least one tapered projection, which extends in the direction of the travel of the web and over at least one high suction slot formed in the other plenum. Atmospheric air, which is drawn into the high suction slot along the tapered side edges of the cover projection, causes the fibers in the web to be rolled or shifted inwardly beneath the projection, thereby to form the web into one or more slivers which are drawn from beneath the discharge end of the projection by conventional takeoff rolls.

Abstract: A method and apparatus is disclosed for producing high quality fibrous webs at high rates of speed. Fibers are fed to a rotating lickerin for opening, then to a rotating card cylinder for individualizing, and are then doffed into an air stream from which the fibers are condensed, as on a moving foraminous belt.

Abstract: In a device for carding, cleaning or opening fibre tufts. An improvement comprises two or more rotating working members or organs (1, 2, 3) which have intersecting planes of rotation and they are arranged to make the fibres fed in at one end move in addition in an axial direction and pass through the lines of close proximity repeatedly in several changed planes of rotation, so that the fibres are worked by a high proportion of the working points before being doffed at the other end or "out" feed. In relation to the dimensions of the working members or organs, the fibres can dwell on the average a longer time in the device so modified and come into contact with a greater proportion of the wire points or pins in the system. This provides for and makes adequate processing of the fibres possible particularly with smaller units in comparison with conventional systems.

Abstract: A textile processing system is disclosed in which a chute feeder is juxtaposed with a card as a web supply device for the card, and the card, in turn, is juxtaposed with a coiler device, typically a dual coiler, for coiling sliver into cans, from the output of the card. In order to reduce variation in weight of fiber per unit width across the width of the output of the card, the horizontal angle of the chute feed output relative to the horizontal angle of the card input is made adjustable. In the preferred embodiment this is accomplished by mounting the chute feed for controlled, limited pivotal movement about a vertical axis generally coinciding with one lateral margin of the chute feed, the adjustment members being provided at the opposite lateral margin of the chute feed.

Abstract: A regulation of the density of the fibre clothing on cards, carding engines and the like is described which is based on measuring the torque which has to be used for the drive of the licker-in or the cylinder. The signal corresponding to this torque is compared with a desired value which is either arbitrarily adjustable or is obtained from a sliver count measuring member or constitutes a combination of the two.The torque is either measured by measuring the power consumption for the drive of the licker-in and/or the cylinder, or by measuring the torsion of a torsion shaft, or by measuring the slip occurring in a variable coupling.

Abstract: The present invention discloses a reinforcement product for use in cement boards and a method of manufacturing said product and of manufacturing cement boards using this product.The reinforcement product of the present invention comprises cross-layered webs of plastic fibres with a preponderance of fibres laid in the trans-axial direction, and continuous filaments or fibrillated tapes located between the layers to impart a high degree of strength in the axial direction. The cross-layered web and the filaments or tapes are compacted to form a reinforcement product which can be rolled up and handled for further processing on cement board forming machines. The webs of plastic fibre are formed by monoaxially orientating on extruded sheet of plastics material in axial direction, then fibrillating the sheet to form a cohesive fibre mass which is cut into lengths and carded to break up the film into a coarse fibrous mass which when stripped from the carding machine forms said plastic fibre web.

Abstract: An apparatus for controlling the working conditions between two rotating cylinders equipped with a point clothing wherein complete elimination of the disturbing influences of the centrifugal force and the increase in temperature of the cylinders onto the working conditions is achieved.

Abstract: A carding machine has a doffer, a web delivering assembly cooperating with the doffer, a calender unit arranged for receiving a fiber web discharged by the web delivering assembly. The calender unit includes a sliver trumpet and calender rolls. The calender unit is displaceable between an operative position in which the sliver trumpet is situated in the immediate vicinity of the web delivering assembly and an inoperative position in which the sliver trumpet is remote from the web delivering assembly. A start-up tray is movably supported underneath the doffer and the web delivering assembly. The start-up tray guides leading portions of the fiber web from the doffer to the web delivering assembly during start-up operation.

Abstract: The dirt separator for carding machines is located upstream of the doffer cylinder and comprises a knife blade (16) as well as a foot portion or base plate that is provided with a toothed wire clothing (19), which is arranged with a clearance of about 0.25 mm from the main drum of the carding machine. The knife blade (16) is preceeded by a gap (27), which is in fluid flow communication with a suction duct (24).

Abstract: For controlling the output and the silver density in a carding machine, lot-specific data are determined, then fed into a memory from which the data may be recalled at will and applied to the control of the carding machine.

Abstract: Carding cylinder takeoff apparatus for producing a randomized web of textile fibers comprises a doffing roll, a wire covered transfer roll closely spaced from the doffing roll surface and a rotatable takeoff roll having a resilient rubber surface with a Shore A Durometer hardness of less than about 80 closely spaced from the transfer roll. The transfer roll is rotated in the same surface direction and at a surface speed less than that of the doffing roll for transferring the fibrous web and forming fiber hooks in the web to randomize it. The takeoff roll is rotated in the opposite surface direction and at a surface speed greater than that of the transfer roll for removing the randomized web from the transfer roll.

Abstract: A control system for use in textile processing equipment including a card and a chute feed delivering a batt of fiber thereto. The operating speed of the card is sensed to generate a signal that is used to drive the motor for the oscillating densification plate and the feed roll of the chute feed at speeds having a predetermined ratio of the operating speed of the card. The weight of the batt formed by the chute feed is sensed and a signal is generated in proportion to the sensed weight, and this signal is used to override the primary drive for the oscillating plate and thereby vary the ratio between the operating speed of the card and speed of oscillation of the plate. The chute feed includes a device for sensing the level of accumulated fiber in the chute feed, and this device generates a signal that is utilized to override the primary drive for the feed roll of the chute feed and thereby vary the ratio between the operating speed of the card and the speed of such feed roll.

Abstract: The working conditions between two rotating cylinders (4,5), which are provided with a point clothing (9,19) and are processing or mutually transferring a fibre web, of a processing machine of the staple fibre spinning plant are always maintained on a predetermined value by adapting the distance between the surfaces of the two cylinders (4,5). For this purpose moving means (21) are used, which permit very precise setting of the distance between the rotational axes (8,14) of the two cylinders (4,5), and which are controlled by control means (22). To the control means (22) the measuring signal of a characteristic directly connected with the diameter of one of the cylinders (4 or 5), as scanned by a measuring element (25), is transmitted, and the control means (22) control the moving elements (21) in function of this characteristic. Thus complete elimination of the disturbing influences of the centrifugal force and of the increase in temperature of the cylinders onto the working conditions is achieved.

Abstract: In a web take-off roller assembly for carding machines, a plurality of cooperating rollers are provided and are mounted at each side in first and second lateral members or side plates. One of the rollers, the take-off roller, is mounted in the first lateral members, which is adapted to be fixed to the frame of the carding machine, whereas all the remaining rollers are mounted in the second lateral members, which members are adapted to be pivoted or rotated around an axis which coincides with the axis of the shaft of the take-off roller. By this, the relative position of the remaining rollers may be adjusted with respect to the take-off roller.

Abstract: A carding machine includes a vertical tuft feed chute, a supply table on which a fiber lap discharged by the feed chute is forwarded in a direction of advance, a carding unit arranged downstream of the supply table as viewed in the direction of advance and receiving the fiber lap from the supply table and discharging a fiber web divided into side-by-side arranged web parts and a plurality of sliver forming trumpets each receiving a separate one of the web parts. There is further provided a dividing device having a vertically oriented tuft divider supported in the feed chute. The tuft divider separates the feed chute into vertically extending feed chute parts situated side-by-side as viewed in the direction of lap advance, whereby the fiber lap discharged by the feed chute is divided into side-by-side positioned fiber lap parts.

Abstract: A web crushing arrangement for a card web comprises cooperating working rolls (6,7) which are supported by a pressure-loadable support member (23), elastic pressure transmitting means (26,29) being provided between the working roll (7) and the support member (23). By supplying compressed air between the surface of the working roll (7) and the pressing surface (27), of the pressing slat (26) facing and shaped to be complementary to it, an air film is generated between the complementary surfaces.

Abstract: A web doffing apparatus of the type wherein a driven roll forms, together with a tangential blade, an entrance opening for a carded web. A blade support is illustrated which may be pivoted to a position facilitating removal of the blade for servicing and for return to improved operation.

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 card is equipped behind the doffer roll (7) with a pair of delivery rolls (8, 8a) for the web (9) provided each with a stationary grazing blade (12, 12a) for seed particles or similar impurities. Between the nip line K of the delivery rolls (8, 8a) and the grazing blades (12) of the delivery roll (8) a web deflecting roll (15) is supported rotatably and drivable in the same rotational direction as the delivery roll (8). The web deflecting device (15) is arranged of, but in the vicinity of, the normal free web exit path (9a) and brings a web (9b) possibly clinging to the delivery roll (8) and carried on thereon back to the normal web exit path (9a) and separates the web (9b) from impurities on the cylindrical surface. The impurities are only subsequently mechanically eliminated by the grazing blade (12), in such manner that the cleaning operation for the delivery roll (8) is effected in two subsequent separate cleaning steps.

Abstract: This disclosure relates to a novel method of and apparatus for producing an open non-woven fabric from fibrous material by delivering the fiber flocks through a carding zone during which time the fiber flocks are loosened and spread to form a non-woven fabric, subjecting the spread-out non-woven fabric to a jamming effect in a jamming zone downstream of the carding zone to form a non-woven fabric of matted fibers, and releasing the jamming effect to form an open non-woven fabric.

Abstract: A ring doffer is provided for carded web splitting that prevents loading of the card cylinder during operation by employing a circumferential groove therein to effect the web splitting that is cut in a reversing helix pattern at a pitch exceeding the width of the groove.

Abstract: An arrangement for carding fibers to produce a fibrous sliver, in which the fibrous sliver is advanced through the nip between two rollers, and withdrawn downwardly from the nip through a compacting funnel in which the sliver becomes formed with a coherent ribbon. The fibrous sliver is withdrawn in a vertical path coinciding with a center line of the nip, or it may be withdrawn in a path which is inclined to the longitudinal end to a center line of the nip. The pair of nip rollers are positioned to receive the fibrous sliver so that the latter passes through the nip therebetween. The spacing between the nip rollers and a guide baffle is arranged to be greater than the spacing between the guide baffle and a pair of withdrawing rollers located downstream of the funnel.

Abstract: A device for stripping a fibrous web from a doffer in a carding machine comprising a doffing roller for directly stripping the web from the doffer, a guide roller for guiding the web and a punched suction roller provided adjacent to the guide roller for feeding the web to a collector in combination with the guide roller. All the rollers are placed in mutually adjacent, parallel relation and are positively rotated. Within the punched roller, there is provided a stationary duct which is connected to a source of negative pressure. The duct includes an elongate suction port having a length corresponding to the effective length of the punched roller. The suction port faces the space between the punched roller and the guide roller. Air is drawn into the duct through a multiplicity of holes in the punched roller to prevent winding of the web around the doffing roller and the guide roller and remove waste fibers and impurities from the web.

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 carding machine has a web delivering assembly including cooperating upper and lower rollers and a web guiding device for withdrawing and gathering a fiber web discharged by the web delivering assembly. The web guiding device includes a guide element arranged immediately downstream of the rollers as viewed in the direction of advance of the fiber web. The guide element has at least one operationally stationary guide face extending transversely to the plane in which the fiber web advances. The guide element further has an upper longitudinal edge extending along the upper roller in the immediate vicinity thereof and a lower longitudinal edge extending along the lower roller at a sufficient distance therefrom for allowing waste to drop out downwardly from the fiber web as is passes from the rollers to the guide element.

Abstract: A method of and apparatus for regulating out variations in the sliver weight on processing machines such as cards, carding engines, draw frames and the like wherein a first measuring device measures either the absolute cross-section or the relative variations of cross-section relative to a predetermined fixed desired value of a fibre sliver issuing from the machine. The first measuring device forms a corresponding first test signal. An additional measuring device is arranged at a point upstream of the first measuring device with respect to the direction of travel of the fibre material. The additional measuring device produces a second test signal corresponding to the relative variations in the cross-section of the fibre material relative to an average value for these variations formed over a predetermined period. The first and second test signals are used for controlling at least one regulating device which controls the cross-section of the fibre sliver.

Abstract: The invention relates to a knitting machine having a combing-in cylinder for producing knitted goods with combed-in fibres. The problem of the invention is rapidly and effectively to eliminate the gaps which occur in the carding clothing of the combing-in cylinder in the knitting operation and which have only a very small number of fibres. This problem is solved by means of a regularization cylinder which co-operates with the combing-in cylinder and which treats the fibres on the combing-in cylinder in the manner of a comb, displaces such fibres in the opposite direction to the direction of rotation of the combing-in cylinder and thereby regularizes such fibres, without however picking up fibres itself.

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 device for gathering a running fiber web delivered by a pair of cooperating rolls (forming part of a web delivering assembly arranged downstream of a carding machine) includes at least one operationally substantially stationary guide element having a hollow guiding face. The guide element is supported downstream of and immediately adjacent to the rolls of the web delivering assembly. The hollow guiding face extends transversely to the direction of advance of the web as the latter leaves the rolls and shrouds at least one part of both rolls.