Abstract: In order to be able to operate chambers for the continuous fluid treatment of textile yarns and which comprise several chamber parts with an improved sealing effect, even at elevated pressures and temperatures when aggressive fluids are used, one or both sealing faces of superimposed sealing face pairs undergo shape correction. The shape correction opposes the elastic deformation undergone by the sealing faces when loaded under operating conditions.

Abstract: A method and apparatus for cleaning textile fibers for use in conjunction with an opening roller to which the textile fibers are fed and around which the textile fibers are conveyed, in the form of a fiber bat, in a transport direction. The apparatus includes an arrangement for conveying the textile fibers from an inlet to a clamping point proximate the opening roller; compressing and clamping the textile fibers, in the form of a fiber bat, with a clamping force, the clamping force having a magnitude which is a function of a characteristic of the fiber bat; drawing the fiber bat from the clamping point to a takeover point on a periphery of the opening roller, the fiber bat then being subjected to centrifugal force due to rotation of the opening roller; conveying the fiber bat, under the influence of the centrifugal force, to a separating blade; and separating an area of the fiber bat having contaminants concentrated therein resulting from the centrifugal force and from the drawing of the fiber bat.

Abstract: A method is described of operating a ring spinning machine in which the traversing motion of the ring rail is generated by means of a heart-shaped disc. For the execution of specific functions which depend on the angular position of the heart-shaped disc, the period of rotation of the heart-shaped disc is first determined. Thereafter, a predetermined angular starting position of this heart-shaped disc is detected and, on the basis of the predetermined period of rotation, the time is then computed in each case from the occurrence of the angular starting position up to the occurrence of at least one further predetermined angular position which is associated with a respective function. On the expiration of the time associated with a respective angular position, the related function is executed.

Abstract: A ring spinning machine with various driving systems 10, 12 for driving spindles, driving arrangements, ring rails and the like is regulated in the case of power failure down to a zero revolution range while maintaining preselected revolution relationships. The driving system which is allocated to the load with the greatest effective inertia serves, at first, for the supply of the other driving system in a generator service. Only in a lower revolution range are the driving systems backed via a battery of relatively low capacity.

Abstract: The circular comb segment is constructed to leave a large free space at the front edge to avoid deflecting a tuft delivered from a nipper unit away from the foremost needles or clothing points at the front edge. The comb segment may be provided with recesses at the sides of the front edge to receive screws for fixing the segment to a comb roller or may be provided with projecting lugs for securement to a comb roller. In one embodiment, the lugs may be replaced by clamping plates which engage against a reduced lip at the front edge of the segment or engaged within a recess or groove at the front edge. In still another embodiment, the comb segment may be provided with an inwardly offset projection to be received in a recess of the roller and secured therein.

Abstract: A transport device serves for the delivery of a plurality of tubes wound with textile material to form laps, between a lap forming machine and a lap processing machine, by means of a transport truck. The transport truck possesses a tiltable receiver in which repose the laps. Viewed in the lengthwise direction of the laps, the latter are arranged behind and coaxially with respect to one another at a predetermined mutual spacing. With prior art devices, a number of manual operations are required to accomplish the exchange of laps and empty tubes. In particular, the empty tubes must be manually removed and intermediately stored at the lap processing machine before they can be manually placed upon the transport truck following mounting of the full laps.

Abstract: A combing head comprises carrying and drive rollers for the lap roll, a cylinder, a detaching roller pair and nippers reciprocable between a drawn-back position and an advanced position. When the trailing end of the lap material runs off the winding tube, the combing machine is stopped at a time after the detaching roller pair have detached a fringe from the lap in the nippers and after the fringe has been separated from the lap. The lap trailing end and the empty winding tube are then removed and a new lap roll is placed on the carrying and drive rollers. Lap material is unwound from the new lap roll until the start of the lap has passed beyond the nip line of the nippers. The combing machine then restarts. The method can, if required, be performed substantially or completely automatically and calls for only a short machine down time.

Abstract: A retaining rod of a roving guide is engaged in a carrier beam and secured by a resilient support member which also prevents any transmission of vibrations. The roving guide has a deflector for rovings each associated with a groove. The grooves are offset from the vertical center-plane of the machine.

Abstract: An apparatus and method for use in a cleaning process of textile fibers, and for use in conjunction with an opening roller. The apparatus includes a plurality of separating blades and guide elements which are spaced from the opening roller during the cleaning process. An assembly is provided for adjustably positioning a plurality of the separating blades and the guide elements during the cleaning process. The adjustment of the spacing of the separating blades and the guide elements from the opening roller can be accomplished remotely, either manually or by a motorized drive. A lever unit enables appropriate connection for effecting the various adjustments of the separating blades and the guide elements. The guide elements and the separating blades can be controlled and adjusted to suit the fibers to be processed.

Abstract: A monitoring apparatus is described for the contact-free monitoring of a region adjacent to a service robot of a ring spinning machine. The apparatus includes an electro-acoustic converter for transmitting a sonic signal which is divided into a sonic measurement signal S.sub.SM and a sonic reference signal S.sub.SR. An electronic control unit delivers a fault signal if no sonic signal has been received by the expiry of a reference transit time. If, on the other hand, a sonic measurement signal is received prior to the expiry of the reference transit time, the control unit delivers a recognition signal to indicate the presence of an object in the monitored region.

Abstract: The conveying system uses a movable trolley containing vertically spaced support surfaces, each of which has parallel tracks for receiving peg trays. The trolley is movable onto a transferring conveyor, for example, at the end of a ring spinning machine. The transfer station has conveyors for conveying rows of peg trays onto and from the trolley.

Abstract: A textile machine is provided with apparatus for preparing the trailing end of a lap and a leading end of a fresh lap so that each end has a reduced fiber mass per unit length of lap in the prepared end. These lap ends are thereafter superimposed and joined together for subsequent processing in a combing unit of a combing machine or a drafting unit of a ribbon lap machine. The respective ends of the two laps may be prepared by a tearing action caused by clamping of the respective lap end between two spaced apart nip lines which are moved away from each other and wherein the spacing is slightly more than the length of the longest fiber in the lap. Preparation of a lap end may also be accomplished using a suction head for clamping of a lap along a nip line in order to carry out tearing of the lap to produced a prepared end.

Abstract: The device for increasing the cohesion length of the slivers is embodied by a pair of calendar rollers. Each calendar roller has a plurality of transversely disposed protuberances of rounded shape for interengaging in spaced relation with each other in order to slightly crimp a sliver passing through the gap between the rollers. The protuberances are adapted to one another in gear-like manner.

Abstract: There are provided a method of and an apparatus for guiding a self-steering or driverless vehicle along an optical guideway. The hitherto known systems, which relate to optical scanning of an optical guideway by means of a light beam and which only transmit the signals "light" and "dark" with respect to detection of the optical guideway, are liable to disturbances and result in a too coarse or non-sensitive control. Therefore, it is suggested to scan the optical guideway by means of light pulses emitted in a predetermined frequency by sensors, whereby the intensity of the reflected light generates by means of an electronic evaluation unit a signal for controlling a steering or guiding mechanism. It is suggested to scan the optical guideway as an analog value by means of individual sensors arranged in a row and further process the determined values as digital values.

Abstract: The batt or sheet to be combed is unwound by rotation of a lap roller (1) from a lap disposed thereon. The batt goes from the lap roller (1) by way of the lap feed plate (13) to a feed cylinder (10) mounted in oscillating nippers (6, 8). The feed plate (13) is connected by way of its bottom edge to the oscillating nippers (6, 8) and by way of its top edge to an element (16) which is rigidly secured to the frame and disposed near the lap roller (1). The plate (13) is made of plastics and has a reduced thickness between the two edges in a linear bend zone (18) which is parallel to the edges. The bend zone (18) extends over the whole width of the plate (13) and acts as an articulation. The plate (13) is therefore simple and economical to produce. It requires no hinge between the two edges; also, it is of reduced weight.

Abstract: The combing machine comprises a continuously rotatable circular-comb cylinder carrying a circular-comb segment and detaching segment. The detaching segment cooperates with a detaching pressure roll. The combing machine also contains a nipper unit comprising a lower nipper which is stationary relative to the axis of the continuously rotatable circular-comb cylinder, and an upper nipper which is movable relative to the lower nipper. The fibers detached by the detaching segment together with the detaching pressure roll are sucked as fiber clusters into a suction shaft or tube, or can be united to form a sliver at a rotatable screening or sieve drum. The suction shaft includes a flexible membrane to close the shaft. The combining machine is of simple construction and economical to manufacture and renders possible a high operating speed and, therefore, a higher output, particularly in the absence of a top comb between the lower nipper and the detaching pressure roll.

Abstract: A replaceable traverse module for a winder for winding endless filaments comprises a housing resting on a support element provided in the machine. The housing and the element have interengaging parts to form a guide for the module during insertion onto the machine, and which also cooperate to hold the module in a predetermined position relative to the threadline.

Abstract: The drafting arrangement is provided with a guide element between the front roller pair and the operative unit formed by an apron and a roller. The guide element is disposed for guiding a length of fiber between the roller of the operative unit and the front roller pair. The guide element may be of D-shaped cross-section, circular cross-section or in the form of a curved plate. Where cylindrical, the guide element may also be rotated.

Abstract: A method for drawing a synthetic thread having a fibril bundle delivers the thread as a ribbon of substantially parallel fibrils through a drawing bath to effect a hydrodynamic braking of the filaments and simultaneous drawing of the filaments. A ceramic pin is used to form the fibrils into parallel relation and substantially in one plane. A second ceramic pin may also be used as a mechanical brake to add to the hydrodynamic braking action by the liquid in the drawing bath. The base and cover of the drawing device are provided with channels to define the flow path for the bath liquid as well as inlet and outlet channels for the liquid. Suction nozzles or air nozzles may be provided at the inlet and outlet ends of the flow paths to remove excess liquid from the fibrils.

Abstract: A carding machine comprises a main carding cylinder and parts which are adjustable relative thereto, such as a licker-in, a stationary flat, a revolving flat and a doffing cylinder, such parts preferably having a nominal spacing relative to the main carding cylinder. For checking a spacing, namely an existing spacing or an already adjusted spacing between the main carding cylinder and the aforesaid parts arranged opposite thereto, there is provided a sensor at at least one end or end portion of the main carding cylinder, but preferably at each one of the two ends or end portions thereof, such sensor or respective sensors being connected to an electronic evaluation unit by means of a coupling device.