Abstract: A weft yarn end treating device for a shuttleless loom comprises a conveyer for conveying the end portion of a weft yarn picked into the shed of warp yarns when the end portion is held to contact with the conveyer, a holder for holding the end portion to contact with the conveyer, and a thrusting member for thrusting the end portion into a location at which the end portion begins to be held to contact with the conveyer, so that any binding yarns for catching and drawing the end portion of the picked weft yarn out of the shuttleless loom can be omitted to solve the problems raised in prior art.

Abstract: An improved air jet loom having a guide comb and a reed wherein an auxiliary air stream is directed through the guide comb substantially along the longitudinal axis thereof. The device and method include nozzle means directing a jet of air through the reed and transversely into the comb and air jet stream deflecting means directing the transverse air stream substantially along the longitudinal axis of the comb to supplement thereby the main air stream through the guide comb.

Abstract: An improved configuration for the nose portion of a gripper shuttle is disclosed. A recess, which may be a concave depression, is formed in the arcuate edge of the tapered front end portion of a tubular shuttle having a gripper clamp mounted therein with the weft gripping jaws positioned even with or in close proximity to the open trailing end thereof. The recess is so shaped and dimensioned as to preclude contact between the front edge of the shuttle with the weft gripping jaws of a similar shuttle when the front and rear ends of the shuttles contact each other in the same plane. Thus, in the event of a machine malfunction causing one shuttle to crash into the rear end of a preceding shuttle, the force of impact of one shuttle on another in this manner is borne by the body portions of the shuttles rather than being borne by the body portion of one of the shuttles and the gripper clamp of another.

Abstract: A shuttleless loom incorporating a weft detecting device according to this invention includes a reed, and a number of guide plates arranged in spaced relationship along the reed, the guide plates being provided with aligned apertures to form a guide passage through which a weft is passed when it is inserted into a shed of warps. In order to detect whether or not the weft has been inserted into the shed, the weft detection device is provided with a photoelectric detecting unit disposed between the adjacent guide plates so as to be movable therewith. The detecting unit emits and receives a light beam advancing along a path which extends between the adjacent guide plates and across a path of the weft along which it moves relative to the guide plates after it has been passed through the guide passage.

Abstract: Shuttle control apparatus for looms having a shuttlebox rotatable 180.degree. from a first, shuttle receiving, position to a second picking position, means for checking and positioning the shuttle to a predetermined picking position within the shuttle box, and means for picking the shuttle. The control apparatus comprises means for guiding and maintaining the shuttle in the predetermined picking position during rotation of the shuttle box and means for braking the shuttle only when it is in the second position.

Abstract: A centrifugal clutch has a pair of clutch shoes pivotally mounted on a pivot collar for outward movement under the influence of centrifugal force to drivingly engage a concentrically mounted clutch housing. Extension springs bias the swinging ends of the clutch shoes toward retracted position. The pivot collar has a hollow cylindrical sleeve with a pair of nearly cylindrical projections mounted diagonally opposite of each other on the external surface of the sleeve. The cylindrical projections are similar to and are located parallel with each other and to the axis of the sleeve and have cylindrical circumferences greater than 180.degree. and less than 360.degree.. The imaginary circumferences of the outer surfaces of the projections lie in an overlapping or abutting relationship with the imaginary circumference of the outer surface of the sleeve.

Abstract: This invention relates to an improvement in a pile warp thread-unwinding device for a terry cloth weaving machine with a drive for a pile warp beam controlled by an oscillatable reversing member for the pile warp threads, the improvement comprising two rotatable reversing means mounted in a stationary manner following the pile warp beam in the drawing-off direction of the threads, an oscillatable feeler means positioned therebetween whereby the warp threads are deflected from a straight path thereof, and means on said feeler means for influencing control switches for the pile warp beam drive.

Abstract: The holding device is provided with a shaped body for raising and lowering the plate-shaped element located within the fixedly mounted support. The shaped body may be in the form of a wedge shaped body or in the form of an eccentric. Suitable means are provided for holding the wedge shaped body in place. Raising and lowering of the plate-shaped elements allows the electrical contact elements to be raised and lowered to adapt to the operating conditions of the weaving machine.

Abstract: A multiple longitudinal traversing shed weaving apparatus comprises a weaving rotor having beat-up or beating elements for the inserted weft threads and shed-retaining elements which retain the warp threads, throughout a predetermined path, in their upper shed position or lower shed position. Each intermediate space between neighboring beat-up elements has operatively associated therewith a respective shed-retaining element which determines the upper shed position or lower shed position. Control means are arranged forwardly of the weaving rotor, viewed in the direction of travel of the warp threads, and serve for the lateral deflection and selective allocation of the warp threads at a shed-retaining element which determines the upper shed position or lower shed position. The control means possesses stroke adjusting elements in the weft direction which are constituted by rods or bars extending in the weft direction.

Abstract: A double-lift open-shed jacquard machine with two lifting bars which are movable in opposite directions to each other and which pass each other, and with lifters controllable by main needles, the latter being arranged transverse to the knives of the lifting bars, which lifters have two main projections associated with the movable knives and one holding-up projection associated with a fixed upper-shed knife. The movable knives are made of a carrier part and hook plates fastened thereto with control hooks, the latter being bent off in the direction towards the main projections of the lifters and being arranged spaced apart from each other. The shaping of the hook plates and their control hooks permits in the control direction of the main needles a passage of the lifters up into a plane lying between the control hooks of a knife, and the shank of the lifters has a flat rectangular cross-section, whose greater bending moment lies in the control direction of the main needles.

Abstract: Amultiple longitudinal traversing shed weaving apparatus comprises a weaving rotor having beating elements for the laid or inserted weft threads and shed-retaining elements which retain the warp threads, throughout a predetermined path, in their upper shed position and lower shed position. Each intermediate space between neighboring beating or beat-up elements has operatively associated therewith a respective shed-retaining element which determines the upper shed position or lower shed position and, viewed in the direction of travel of the warp threads, there is arranged forwardly of the weaving rotor a control means for the lateral deflection and selective allocation of the warp threads to a shed-retaining element which determines the upper shed position or lower shed position.

Abstract: A supply channel for the thread has its exit end surrounded by an annular orifice. A connection is provided for supplying a flowing pressurized fluid to the upstream side of the orifice, and an elongated mixing tube is arranged to receive the thread as well as fluid discharged from said orifice and substantially forms an extension of said channel. A sleeve surrounds only the outflow end portion of the mixing tube, the upstream end of the sleeve having a sealing engagement around the mixing tube, and the downstream end of the sleeve lying in substantially the same plane as the downstream end of the mixing tube. A sleeve-shaped filling piece fills the space between the downstream end portion of the sleeve and the mixing tube and contains axial exhaust channels. A connection is provided for supplying a flowing pressurized fluid to the interior of the sleeve upstream of the filling piece.

Abstract: In a shuttle-less loom in which a pick of weft is inserted into the shed of warp yarns by a jet of compressed air from an insertion nozzle to one side of the shed, a plurality of spaced auxiliary nozzles are provided along the weft path through the shed. Each auxiliary nozzle has a horizontal slot directly below the weft path, and a vertical slot at one or both ends of the horizontal slot adjacent the respective lower end of the vertical slot. The slots face in the direction in which the weft travels and are supplied with compressed air to provide a lower substantially horizontal flat jet of air from the horizontal slot and one or two lateral jets from the respective vertical slot, so that the air jets serve to guide, support and augment the propulsion of the weft.

Abstract: This invention provides a yarn feed and controlling device in which a resiliently mounted yarn controlling arm including a yarn guide eye is movable from a first position in which yarn can be continuously fed to a second position in which the yarn is restrained. The device includes a yarn restraining means associated with the yarn controlling arm which serves when the yarn is in the second position to restrain the yarn by applying a clamping force thereto.

Abstract: The warp and/or the weft of a woven papermakers fabric is made from a combination of polyester monofilament yarns and separate yarns of a different material preferably a more wear-resistant material so that the polyester yarns give adequate dimensional stability while the other yarns impart a different property, preferably, improved wear resistance.

Abstract: An apparatus for manufacturing a slide fastener stringer having a woven stringer tape and a coiled coupling element woven therein, includes a needle loom for weaving the stringer tape of warp and weft threads, a mandrel for extending at an angle to the warp threads, and a coiling rotor assembly to be located alongside of the warp threads for winding a monofilament around the mandrel in a circular path to form the coiled coupling element, which is then woven into the stringer tape by the weft thread. A monofilament guide means is fixed with respect to the coiling rotor assembly and is located in substantially, three-dimensional point-symmetry relation to a distal end portion of the mandrel with respect to the center of the circular path, so that the monofilament is kept under substantially uniform tension while being rotated by the coiling rotor assembly.

Abstract: A multi-plate friction clutch for a motor vehicle to automatically engage normally driven wheels with wheels which are not normally driven includes a fluid pressure piston/cylinder for engaging the plates connected to a pressure line and a discharge line through two rotary valves. One valve is formed by an inner plate carrier rotatable on a drive shaft through an angle .alpha. and the other valve is formed by a sleeve around the shaft and rotatable with respect to a fixed housing through an angle .beta.. The cylinder is selectively pressurized or de-pressurized through bores, ducts, ports and line systems in dependence or the relative rotary movements of the valves.An over-ride valve is provided.

Abstract: The present invention is directed to a method of providing a row of loops at each end of a forming fabric, filter cloth or similar weave of a kind comprising two layers of weft threads with the threads positioned in pairs substantially one on top of the other, and warp threads interconnecting the weft layers, said rows of loops intended to be interconnected by a locking wire to form an endless fabric web.

Abstract: A shed-retaining member is provided for use with a weaving loom of the type having apparatus for forming warp sheds, with the shed-retaining member being insertable between warp threads to maintain the warp sheds in an open position. The improved shed-retaining member includes protruding and enlarged release surfaces for engagement with the warp threads to more reliably release the warp threads by increasing the spacing between groups of warp threads in order to release them.

Abstract: A thread gripper for a textile thread having a fork-like gripping member with two rigid horns 3, 7, of which the one horn 7 forms a rigid part of the thread gripper. A cushion 5 of soft resilient material is inserted in a recess 4 in the other horn 3. This cushion 5 presses a tongue 6, in order to grip the thread 11. The thread 11 is released by pressure on the nose 9 carried on top of the tongue.