Abstract: The invention relates to a mobile threading unit (10) for threading warp threads (20) of a warp into elements of a harness, having at least one providing apparatus (33, 43, 51) for providing elements of the harness, at least one receiving apparatus (32, 42, 51) for receiving elements of the harness with a threaded warp thread (20), a threading module (II) which is configured for separating an element from the at least one providing apparatus (33, 43), for gripping a respective warp thread (20), for threading said warp thread (20) into the separated element, and for placing the element with the threaded warp thread (20) on one of the receiving apparatuses (32, 42), wherein the threading unit (10) can be displaced spatially for threading individual warp threads (20).

Abstract: Apparatus for use in mounting and dismounting a warp beam, loaded with cannisters of warp thread onto or from a loom includes a trolley, with a hoverpad mounted under the trolley, and with a bracket carrying warp healds and reels. Trolleys may be combined, to carry two beams together, one trolley being arranged at the end of each beam, and the respective end trolleys being connected to the trolley in front of or behind it.

Abstract: A method of warp thread drawing-in for warp thread machines having at least one warp thread magazine, heald frame, and reed comprises the steps of placing the warp thread magazine, heald frame and reed from the warp thread machine on a warp thread charging device which is separate from the warp thread machine; passing warp thread groups, comprised of one or more warp threads, in stages through a respective heddle of a heald frame; assigning each of the warp thread groups a space in the reed; drawing each of the warp thread groups through its respective space with an automatic reeding device, the automatic reeding device being movable along a width of the reed as the drawing step is carried out; transferring the warp thread magazine, heald frame and reed from the warp thread charging device to the warp thread machine and returning the warp thread magazine, heald frame and reed to their operational positions in the warp thread machine. A warp thread charging apparatus is also disclosed.

Abstract: After a warp beam on a loom is used up, its old warp threads are separated from a material being woven on the loom. The used-up beam, together with its residual old warp threads, is then mounted on a transport device and moved away from the loom. A winding element rotatably mounted on a maintenance device is positioned adjacent the transport device. Leading ends of the old threads are affixed to the winding element and separated from the used-up beam, whereafter the used-up beam is replaced by a new beam. Leading ends of new threads on the new beam are attached to trailing ends of respective ones of the old threads, whereafter the winding element is rotated to wind-up the old threads and parts of the new threads, while pulling the new threads through a loom device (such as a warp stop motion device, and/or a shedding device, and/or a weaving reed) carried on the transport device. Then, the winding element is rolled along a guide surface to a removal device.

Abstract: At their free ends the yarns are straightened, clamped and welded with a film. Welding is performed with two welding bars to which is allocated a brush beam to tension the yarns. The welding bars are borne and/or guided by a frame to which the brush beam is also secured. The frame is fitted on a mobile chassis which also has a holder to take a roll of welding film. For use in weaving preparation works and in weaving works, especially in preparing the warp and in starting weaving.

Abstract: A carrier frame for transferring a loom harness into a loom is equipped for carrying additional loom components such as selvage spools, leno spools, and a warp stop motion unit. Such a carrier frame is constructed to be adjustable in its longitudinal direction that extends crosswise to a movement direction of a transport cart to which the carrier frame is attached by centering elements, one of which is position adjustable in its position to adjust the carrier frame to different weaving widths. Two longitudinal beam members (6A, 6B) held in a guide and coupling member are adjustable crosswise to the frame width.

Abstract: The machine contains a warp-beam truck (2) for the warp beam (3), a lifting device (4) and a drawing-in frame (5) provided for clamping a warp-thread layer (KF), the threading-up of which drawing-in frame (5) takes place separately from the drawing-in machine and which, after the threading-up, is transported to the drawing-in machine. The drawing-in frame (5) is detachably mounted on the lifting device (4) and, before the drawing-in, is transferred to the drawing-in machine in which it is displaceably arranged in the longitudinal direction of the latter. When it is displaced during the drawing-in operation, the drawing-in frame (5) is driven separately from the lifting device (4) and the warp-beam truck (2).

Abstract: A clamping device for clamping a yarn layer includes a clamping rail, a clamping comb that is insertable into the yarn layer, and a reed comb that is also insertable into the yarn layer. The clamping comb is provided with spaced apart clamping lamellae which each have a clamping edge facing the clamping rail for clamping yarn between the clamping rail and the clamping edge of the clamping lamellae. At least one of the clamping rail and the clamping comb are adjustable relative to the other so that the clamping rail and the clamping comb approach one another to clamp the yarn. The reed comb and the clamping comb are longitudinally adjustable relative to one another by an amount greater than the spacing between the adjacent lamellae of the clamping comb in order to deflect the yarn.

Abstract: A cart for transferring a warp exchange system from a machine that prepares such a warp exchange system to a warp beam lifting carriage, is equipped to at least temporarily store a prepared warp exchange system after having picked up the system from a warp drawing-in carriage that forms part of the machine for preparing the warp exchange system. The cart is further compatible to transfer the stored system to a warp beam lifting carriage which in turn inserts the system into a loom. The cart makes sure that the warp exchange system is presented with the proper orientation relative to the loom so that the insertion can take place in the manner of a cassette formed by the cart and the warp exchange system including the warp beam.

Abstract: Apparatus for drawing-in warp yarns into the gaps of a weaving reed includes a reed hook (22) for sequentially opening the reed gaps for the insertion of a draw-in member carrying a warp yarn, and a transport system for the stepwise transport of the weaving reed in its longitudinal direction past the reed hook location. The transport system has a first transport member (BW) extending over the length of the weaving reed and coupled to this in the operating state is a gripper-like second transport member (48, 49) for intermittent engagement with the first transport member (BW). As a result of this arrangement, the two functions of reed transport and reed opening are decoupled and can each be optimized independently. This allows the draw-in frequency to be increased. Moreover, the reed hook and reed teeth are given maximum protection.

Abstract: In a system for exchanging packages on a textile machine such as a rewinder, a creel loader receives empty packages from a creel for transportation to the position of a package supporter, the package supporter is rotated about a vertical axis over 180 degrees to place full packages in a position facing the creel loader, and, after receipt of the full packages, the creel loader travels to a section of the creel in need of package exchange for transfer of the full packages to the creel. Concurrently with this process, full packages from a package stocker is mounted to the package supporter by operation of an assistant device such as a robot for next exchange of packages with the creel loader. Loss in production efficiency otherwise caused by empty travel of the loader is well avoided.

Abstract: A warp beam lifting carriage for removing an empty warp beam from a loom or for inserting a full warp beam into a loom, is equipped with positioning devices that permit a precise positioning of the carriage in the three directions of space. An insertion stop mechanism limits the movement of the carriage toward the loom. A lateral restraining device makes sure that the carriage is horizontally centered relative to the loom in a direction perpendicularly to the movement direction toward the loom. A third leveling device makes sure that the longitudinal axis of the warp beam shaft can be precisely aligned with the horizontal axis of floating axle stubs that are inserted through bearings into sockets at the free ends of the wrap beam shaft. The precise alignment is quickly achieved and increases the productivity of the loom.

Abstract: The apparatus includes magazines (16) for accommodating drop-wire stacks (LA) and transport mechanisms for feeding the drop-wire stacks (LA) to a separating station where the drop wires are singularized. The transport means contain a first path (11) for feeding the full magazines (16) to the separating station and a second path (21) for returning the empty magazines (16) from the separating station. In addition, mechanisms (22, 33) are provided for transferring the empty magazines from the first to the second path. Largely automatic feeding of the warp-thread drawing-in machine with drop wires is made possible by this device.

Abstract: A method and apparatus for carrying out an automatic drawing-in is provided including forming lengths of thread which are double folded. The thread is passed to a corresponding heddle and between corresponding dents of a reed. The threads are leased and placed under tension. Progressively, the various threads which are leased and under tension are moved away from the drawing-in location. Heddles are selected from a plurality of magazines and the heddles are positioned in a drawing-in attitude. The reed is positioned and the dents are spread for passage of the various threads. The warp threads are passed by moving the drawn-in heddles directly from the associated magazines to a heddle frame of a corresponding set of heddle frames. The heddles are always retained in a guide.

Abstract: A cloth beam changer includes a conveyor having gripping arms which carry gripping elements at the ends. A transmission is provided in the form of a slide with a spindle and nut arrangement for raising and lowering the slide. A guide rail and stop are provided in the winding-on station of the loom to position the gripping elements accurately while at the same time preventing further downward movement of the gripper arms and slide. A spring between the slider and spindle nut compressers should the transmission overshoot the position of the gripper elements. A second spring is also provided between two parts of the gripper arm to permit deflection of the lower part upon engagement and sliding on the guide rail of the loom. Sensors are provided to measure the amount of deflection of the respective springs.

Abstract: A small portable drawing-in machine is disclosed for suspension on the top of a loom reed and for movement along the lengths of the reed. A drive screw on the machine meshes with the reed dents to control the position of the machine on the reed, and a threading hook is projectable through the spaces between reed dents to draw warp yarns therethrough. A set of drive screws of different pitches may be replaceably mounted in the machine to give the machine a capability for use on reeds of different pitch.The threading hook is reciprocably mounted on a rotatable turntable that is coupled through suitable gearing to the drive for the drive screw so that a machine cycle includes a movement of the threading hook to carry a warp yarn through a space between reed dents, a rotary movement through 360.degree.

Abstract: A looming apparatus for a loom includes in general a warp beam handling unit for attaching and removing a warp beam to and from the loom, and a handling unit for supporting loom components including at least heddles and a reed threaded by the warp from the warp beam. A supporting platform is provided on a truck so as to be reciprocated between a stand-by position and a looming position. The warp beam handling unit and the handling unit for supporting the components threaded by the warp yarn are installed on this supporting platform. In the working position of the truck for the loom, the supporting platform is expanded from the truck to the looming position on the loom for performing the required operation at this position. After termination of such operation, the supporting platform is returned to the stand-by position on the truck, while the truck is moved to the looming preparatory position.

Abstract: A method of converting a warping arrangement having two creel halves and a warper from a setup for long lots of one style to a setup for shorter lots. The method includes converting transfer package positions on each of the creel halves to running package positions and providing a yarn sheet transfer device associated with each creel half to permit the recreeling of each creel half by placing leading ends of newly recreeled yarn packages into yarn guides on the yarn sheet transfer device associated with the creel half while yarns from the other creel half are running to the warper through a yarn sheet transfer device associated with the other creel half.

Abstract: A process for coiling warp beams of looms involves winding new warp threads on warp beams with free ends of predetermined length double wound on the beams at the beginning of the winding process. A warp beam with a securing system for warp threads arranged to leave free ends of the warp threads is described. For changing a warp beam, the free ends of the double coiled warp threads are released from the warp beam before the beam is completely unwound and the free ends are tied to the leading ends of warp threads on the next succeeding warp beam without stopping the weaving process.

Abstract: A wireless let-off and take-up control system for controlling the let-off motion and take-up mechanism of a loom or looms by wireless. The control system comprises a portable transmitter or transmitters, and a receiver or receivers each associated with the controller of a loom for controlling the let-off motion and take-up mechanism of the loom. Instructions for controlling the let-off motion and the take-up mechanism are given by wireless by operating the transmitter through the receiver to the controller of the loom at an optional position around the loom, so that a single operator is able to observe the movement of warps and, if necessary, to vibrate the warps in order to enable the warps to move smoothly past the droppers, the mails of heddles and reed of the loom in preparing a new warp beam for weaving operation on the loom.

Abstract: Methods and means for allowing heddles to be drawn-in with warp yarns away from a loom for subsequent loading into the loom. A heddle holder allows rows of drawn-in heddles to be carried to the loom. Removable heddle rod sections allow for the heddle holder to load the rows of drawn-in heddles into intermediate portions of heddle rods of adjacent harness frames. The heddle holder also positions the adjacent harness frames during loading of the drawn-in heddles. Individual warp yarn beam canisters provided with the drawn-in heddles facilitate the heddle holder loading of the drawn-in heddles into the harness frames. A protective covering protects the drawn-in warp yarns as they are transferred from the remote drawing-in site to the loom.

Abstract: The centering and entrainment devices, by means of which the warp beam can be clamped or chucked, are axially slidably guided at side plates of the beam warping machine. With their outer ends they are hingedly connected at a respective lever. Both of the levers are pivotably mounted, by means of their one end about stationary pivot pins, in a plane which contains both of these pivot points as well as the axis of the warp beam. At their opposite ends both of the levers are interconnected by a rod arrangement, wherein a threaded sleeve having two opposite internal threads and rotatably mounted in one side plate allows changes in the length of such rod arrangement. Consequently, both of the levers can be synchronously and axially symmetrically moved towards and away from one another, so that the coaxially guided centering and entrainment devices can be symmetrically advanced towards and displaced out of the warp beam.

Abstract: A warp beam transport and elevating carriage for twin warp beams is disclosed having a longitudinally extending shaft capable of rotation about its longitudinal axis, a plurality of gripper arms fixed to the shaft and extending downwardly to securely support twin warp beams at each end, and twin warp beams mouned for transport and elevation without danger of displacement of dislodgement.