Abstract: A flat bar for a travelling flats assembly of a carding machine includes a carrier body having opposite end faces spaced from one another parallel to a longitudinal axis of the carrier body; and a flat bar end adjoining each end face of the carrier body. Each flat bar end includes an element which has a gliding portion having a part arranged for being in a gliding contact with a slideway of the travelling flats assembly; and a securing portion supporting the gliding portion and being attached to the carrier body.

Abstract: A fiber processing roll includes a groove provided in a roll surface helically about a longitudinal roll axis. The groove has at least one side wall which is inclined to a radius of the roll that extends to the inclined side wall. The groove has a top opening and a bottom; and the top opening has a width measured parallel to the axis and being greater than the width of the bottom. The fiber processing roll further has a sawtooth wire extending helically about the axis and forming a clothing on the roll. The sawtooth wire has a base rib received in the groove. The base rib has side walls and a bottom end face. One of the side walls of the base rib is inclined to the roll radius. The width of the base rib measured parallel to the axis decreases toward and is the smallest at the bottom end face of the base rib.

Abstract: A dictation machine having the physical configuration of a telephone handset. A mouth piece and an ear piece are arranged at opposite ends of a elongated housing having a handgrip between the ends. A tape deck is arranged in the handgrip, preferably in a flat face facing in the same direction as the mouth piece and ear piece. A start/stop key is arranged on a side of the handgrip, and other control keys are arranged in transition areas between the deck and the mouth piece or ear piece, so that the keys can be operated by the fingers of a hand which is holding the handset.

Abstract: A sliver coiler includes a rotary head assembly, a trumpet mounted eccentrically in the rotary head assembly and a sliver support situated at a vertical distance above the rotary head assembly and arranged for guiding the sliver to the trumpet orbiting during rotation of the rotary head assembly. There is provided a hood which encloses a volume above the rotary head assembly and which has a ceiling wall provided with an air inlet opening. The sliver support is arranged in a zone of the ceiling wall.

Abstract: An apparatus for forming a lap from fiber tufts has a generally vertically oriented feed chute having upper and lower ends; a mechanism disposed at the upper end for introducing fiber tufts into the feed chute; a mechanism at the lower end for discharging a lap from the feed chute; a mechanism for maintaining, in the feed chute, an air stream flowing downwardly in the direction of the lower end; and apertured separating walls bounding the feed chute along a vertical length portion thereof for providing an exit for the air stream from the feed chute. Each separating wall has a plurality of parallel-spaced, vertically extending slots and webs in an alternating sequence. The separating walls are in a parallel, face-to-face relationship and are spaced from one another by a distance less than the expected smallest size of the tufts.

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: A carding machine has a main cylinder, revolving flats provided with clothing and moving along a circumferential portion of the main cylinder, a cleaning apparatus for cleaning the revolving flats and a suction device disposed underneath the apparatus for removing waste generated during operation of the cleaning apparatus. The cleaning apparatus comprises a flat stripping brush mounted for rotation adjacent the traveling path of the flats for cooperating with the clothing of the flats to remove waste therefrom, a brush cleaning roll mounted for rotation at a small distance from the flat stripping brush to continuously remove waste from the flat stripping brush and a waste collecting bin for catching waste thrown by the brush cleaning roll and for guiding the waste to the suction device.

Abstract: A method of forming fiber mixtures from different kinds of fiber includes the step of removing the fiber in a plurality of passes from a plurality of stored fiber lots containing the different kinds of fiber. During each pass, fiber is removed from consecutive stored fiber lots in partial quantities that are small relative to the entire fiber quantities in the stored fiber lots. According to the method, prior to fiber removal in the first pass, the entire fiber quantity in each stored fiber lot is separately determined and from such entire fiber quantity there is determined, for each stored fiber lot, a partial quantity to be removed from each stored fiber lot during the first pass. Each partial quantity represents a proportion of the entire fiber quantity of the respective stored fiber lot. Thereafter, at least during the first pass, the determined partial quantity is removed from the respective stored fiber lot.

Abstract: A bale opener includes guide elements for bilaterally bounding a space in which a bale to be opened is accommodated, bale opening elements for opening the bale at its underside and a bale supporting device arranged above the bale for engaging an upper face of the bale and for exerting thereon a downwardly oriented pressing force.

Abstract: In the production of a card sliver in a textile fiber carding machine, the rate at which fibers are fed to the machine is continuously measured and deviations in the measured rate from a desired value are utilized to vary the rate at which fibers are being supplied to the machine.

Abstract: A web guiding device for withdrawing and gathering a fiber web discharged by a carding machine includes a guide element which is arranged immediately downstream of the web delivering assembly of the carding machine as viewed in the direction of web advance in the carding machine and which has a hollow guiding face traversing the plane of the web. The web guiding device further includes an arrangement for adjusting the position of the guide element with respect to the web delivering assembly as a function of the rpm of at least one of the rolls thereof.

Abstract: Apparatus for cleaning textile fiber tufts, composed of an endless, continuously rotating, air-permeable conveyor belt provided with openings whose width is less than the size of the tufts, a device for continuously supplying textile fiber tufts to the upper side of the conveyor belt, a device for sucking air away from the belt, a device disposed for emitting surges of compressed air in the direction toward the conveyor belt and located at the side of the conveyor belt facing away from the side to which the tufts are supplied, and a perforated cover plate disposed to the side of the conveyor belt to which the tufts are supplied and located at a distance from the conveyor belt, with the device for sucking air away being connected to the perforated cover plate.

Abstract: Apparatus for removing a layer of predetermined thickness from a bale of fiber material including an array of rigidly secured, juxtaposed, vertically oriented tines and carriers for moving the tines downwardly to a selected depth in the bale and then horizontally to remove a top layer from the bale.

Abstract: An arrangement for opening textile fiber bales in which a row of textile fiber bales are broken up by at least two needle tables or rollers placed small distances apart in a row from their bottom side. The distance between the needle points of successive needle tables or rollers are continuously variable. Furthermore, the distance between needle points is changed automatically depending on properties inherent to the textile fiber bales or fiber tufts during operation of the needle table. The actual characteristic value of the detached fiber is compared with a nominal characteristic value, and a different signal is generated and applied as a control on a correcting element. The correcting element varies the distance between the needle points. Disturbance effects are obtained from the textile fiber bale, and this disturbance produces through a control device, an input or set variables for the distance between the needle points. One disturbance effect of the textile fiber bale may be the hardness.

Abstract: An arrangement for opening textile fiber bales in which a row of bales are broken up from their underside. The device which performs the breaking-up process has revolving pairs of needle tables or rollers with needles inclined in relation to the working direction, so that with adjacent break up members they are inclined in the opposite direction. The rotary speed of the needle table is variable, and the rotary speed of one needle table of at least one pair of tables or rollers is changed as a function of material-specific property of the textiles fiber bales. The rotary speed may be changed automatically during operation. An input control parameter is obtained from the textile fiber bales to generate an input variable for the rotary speed of the needle table, through a control unit. The hardness of the textile fiber bales may be used as the input control parameter. The weight of the bales may also be used for this purpose of providing the input control parameter.

Abstract: A bale breaker machine includes a breaker arrangement on which a textile fiber bale is positioned for being opened at its underside, a guiding wall pair formed of two substantially vertically oriented bale guiding wall disposed above the breaker arrangement and spaced from one another to accommodate the textile fiber bale therebetween; and a bale supporting device which includes an insert carried by at least one bale guiding wall at a face thereof oriented to the other bale guiding wall of the guiding wall pair and a displacing arrangement coupled to the insert for moving at least one part of the insert away from the associated bale guiding wall and for urging the insert part into a face-to-face engagement with a side of the textile fiber bale positioned between the bale guiding walls of the guiding wall pair.

Abstract: A method and apparatus for cleaning textile fiber tufts by depositing such textile fiber tufts onto the upper surface of a supporting member provided with openings, directing streams of compressed air upwardly through the openings in the member and against the textile fiber tufts from delivery nozzles arranged below the supporting member for propelling the tufts upwardly to release dust therefrom and permit heavy particles to be separated from the tufts and to fall through the openings in the supporting member; drawing away the released dust by means of a suction device disposed above the supporting member, and conveying the fiber tufts along the supporting member.