Abstract: An apparatus for forming a fiber lap to be processed by a carding machine includes a generally vertically oriented feed chute having generally parallel and vertically oriented front and rear walls. The chute has an opening at the top for receiving fiber tufts and an opening at the bottom for delivering a fiber lap. An air stream is introduced into the chute for flow in the direction of the bottom thereof. Air exit openings are provided in the zone of at least one of the walls allowing the air stream to leave the feed chute. The depth of the feed chute measured horizontally at the height level of the air exit openings varies along the chute width, whereby a fiber lap of varying thickness along the lap width is produced.

Abstract: Apparatus for opening and cleaning fiber tufts, composed of a rotatably mounted cylinder with a card clothing mounted on its circumference for gripping tufts and conveying them, a system for pneumatically feeding a mixture of tufts and air toward the cylinder circumference to strike the cylinder while traveling in a direction having a component opposite to the direction of movement of the portion of the cylinder which is struck by the mixture, cleaning elements operatively associated with the cylinder, a wall defining with the cylinder an air gap extending in the direction of flow of such mixture, and a system for discharging cleaned tufts.

Abstract: A method and apparatus for separating foreign matter from fiber tufts carried by an air stream in a duct. The duct has a bend for altering the direction of flow therein. Upstream of the bend, the stream in the duct is split into at least two partial streams and the foreign matter is separated from at least one of the partial streams. Subsequently, the partial streams are reunited into a single stream.

Abstract: A bale supporting apparatus for stabilizing fiber bales during opening of the fiber bales from the top includes a support element arranged to engage a vertical end face of a bale and further arranged for stepwise, vertically downwardly oriented motion as the bale height decreases during the bale opening process. The support element is mounted on a stationary carrier structure which is situated horizontally adjacent the space occupied by the fiber bales undergoing opening.

Abstract: In apparatus for cleaning and removing dust from textile fiber tufts, which apparatus includes a channel for the passage of fiber tufts and including a member for introducing air into the channel, components defining an air separation zone having apertures and associated with the channel for separating air from the tufts in the channel, and a device for extracting air from the air separation zone, the components defining the air separation zone include at least one comb disposed a short distance downstream of the air introducing member at a location to enable tufts being carried through the channel to abut on the comb. An abutment member can additionally be disposed in the channel in the vicinity of the upstream end of the comb to aid in releasing dirt from the tufts.

Abstract: Debris is separated from pneumatically conveyed textile fiber tufts moving through a conduit by diverting a flow of air and debris from the conduit and returning the flow of air to the conduit so as to restore the volume of air flowing through the conduit.

Abstract: An apparatus for opening textile fiber bales includes a bale opening arrangement adapted to travel parallel to the length of the apparatus along serially arranged fiber bales. The bale opening arrangement comprises a bale opening member having a plurality of opening elements for penetrating, in an opening zone, into the fiber material of the bales at an upper face thereof and a grate formed of parallel-spaced grate bars for engaging, in an operative position of the grate, the upper face of the bales. The opening elements of the opening member project in between adjoining grate bars in the opening zone. The grate bars, when viewed in their operative position, terminate in a free end in the opening zone.

Abstract: A carding element in which a tooth set uses steel and is arranged on a base plate. The tooth set is made of steel-bound hard material. This material, furthermore, contain titanium carbide up to substantially 50% by volume. The steel-bound hard material may also be used for the tooth set of a fixed cover, or of a comb segment located underneath a taker in.

Abstract: An arrangement for mixing textile fiber in set quantity ratios, with at least two conveyers and at least two weighing feeders with scale tanks. Each conveyer has one weighing feeder with scale tank for delivering fiber flakes. Each conveyer has one conveyer roller and one breakup roller acting jointly for receiving the fiber flakes, and all conveyer rollers and breakup rollers are connected to a common flake suction device. Two horizontal endless conveyer belts may be used as conveyers. The rotary speed of the conveyers is continuously variable. The upper side of the conveyers runs towards the flake suction device. The conveyer rollers are located near belt rollers on the conveyers. Conveyer rollers and belt rollers have opposite directions of rotation, while breakup rollers and belt rollers rotate in the same direction. Air shield elements and the flake suction device may form an injector nozzle.

Abstract: An arrangement for opening textile fiber bales, particularly hard-pressed cotton bales. The fiber material is removed from above and moved by layers in the horizontal plane of the layer, and delivered to an opening element to break up the layer into fiber flakes. The entire fiber material of the uppermost layer may be moved towards the opening element. The arrangement has at least one conveying roller for moving the layer, and an opening roller cooperating with it. The apparatus may have two or more counterrotating conveying rollers above which the opening roller is located. The conveying rollers may rotate in the same direction and the opening roller may be horizontally adjacent. The peripheral speeds of the conveying rollers increase with the proximity to the opening roller. The conveying rollers may have toothed rings on the surface, and the toothed rings of successive rollers engage one another. A holding roller may be located between the opening roller and the conveying roller next to it.

Abstract: A device for withdrawing and gathering a fiber web discharged by a web delivering assembly includes a guide element arranged downstream of the web delivering assembly as viewed in the direction of web advance and a trumpet arranged downstream of the guide element. The guide element has an outlet opening through which the web leaves the guide element. The trumpet is positioned immediately at the outlet opening as the continuation thereof, so that the web can pass directly from the guide element into the trumpet.

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: An arrangement for feeding a carding group with a pneumatic conveying system in which the feeding supplies a plurality of feed chutes. A flake flow is broken up, and is distributed with uniform circular motion, and is then converted into a flake accumulation of rectangular cross-section. The flake flow is distributed by centrifugal force effects, and the flake accumulation may be vertically compressed. A pneumatic conveying duct is followed by at least one feed chute with rectangular exit cross-section, in which an opening and distribution element with circular delivery is located between the conveying duct and the feed chute. The opening and the distribution elements, moreover, operate pneumatically, and may have a cone-shaped outer surface. The rotary speed of the opening and distribution elements may be made continuously variable, and the feed chute may have a circular entry cross-section.

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.

Abstract: In order to remove dust from textile fiber tufts, the tufts are conveyed by an air-penetrable, continuously advancing screening element and a single stream of air is passed a plurality of times through the screening element in order to alternately mix with and become separated from the tufts and the stream is given a net flow in the direction opposite to the direction in which the tufts are being conveyed by the screening element.

Abstract: A process for the manufacture of flat sheets or webs from a natural fiber material such as cellulose fibers in which the fibers to be processed are first placed on a substrate in the form of a dry heap after which an amount of water not exceeding the amount of moisture which can be absorbed by the fiber is added, whereupon the wetted fibers are subjected to pressure and temperature causing them to bond together forming a sheet or web. When sheets or webs of greater thickness are being made according to the present invention a further step of cooling before relieving pressure is carried out to avoid steam pockets formed within the web from breaking through upon release of pressure.

Abstract: Apparatus for producing pattern on advancing strips such as strips of textile and similar materials in which a roller rotates in a trough picking up a liquid such as a dye used for producing the pattern and carrying the liquid to a scraper blade slanted toward the strip of material with the scraper blade scraping off the liquid adhering to the roller which is then permitted to run down onto a strip moving therebelow. In accordance with the present invention, a plurality of movable channels are provided at the bottom end of the scraper plate, the channels being movable between one position in which the liquid is permitted to flow onto the moving strip and another position in which the liquid is directed to a catch pan from which it can be returned to the trough with means provided to oscillate the channels so as to produce a desired pattern on the strip.

Abstract: An improved method for the treatment of a web material such as a textile, fleece or similar web which is continuously moving and is patterned by means of printing, dyeing or the like and the pattern fixed with remaining patterning and treating agents washed out thereafter, additional steps in which, after the fixing treatment and before the washing step, the web of material has applied to it a quantity of a rinsing liquid just sufficient to moisten the fibers of the web at their surface and the rinsing liquid immediately thereafter suctioned away are included in the process. Also disclosed is apparatus for carrying out the process.

Abstract: An improved method of dyeing carpets and the like and apparatus for carrying out the method in which a dye film of a width equal to that of the carpet is formed and then interrupted in a varying manner to result in strips of dye being deposited on the carpet in a random fashion to obtain a visually pleasing effect.