Abstract: The present invention relates to a yarn winding spindle cap having a variable moment of resistance, the spindle cap having diametrically oppositely extending arm portions, each of the ends of which supports a vertically oriented bushing, and the opposite ends of a loop of single strand are fixed in the bushings and position the loop so that it rubs against the periphery of the bobbin with a view to braking the spindle cap as a function of the diameter of said bobbin.

Abstract: The present invention relates to a package-lifting system in an unwinding or twisting machine, which comprises two wheels around which is tensioned a metal ribbon fixed to the periphery of each wheel. The first wheel is angularly fastened to a first fixed shaft, while the second wheel, which is connected a stirrup between the arms of which a package is placed, is mounted to rotate freely on a second shaft. The latter shaft is borne by one of the ends of an arm of which the other end is articulated about the first shaft. The invention is particularly applicable to the textile industry.

Abstract: An open-shed Jacquard machine comprising multiple harness cords on each side of the layer of warp yarns of a loom, and each cord provided with an eyelet through which a corresponding warp yarn passes, the shed opening system comprising multiple modules each having pulleys respectively receiving in its groove one of the harness cords, harness cord displacement mechanisms on the modules to rotate the pulleys through angles sufficient to lift the cords, the shed opening modules being arranged on the loom in series of spaced rows with their displacement mechanisms facing away from each other and their pulleys facing toward each other, and the rows being progressively offset from each other in directions parallel to the warp yarns.

Abstract: In a double twist spindle assembly of the type including a central spindle having a bore therethrough and extending through a can, the spindle supporting within the can a lower yarn package and an upper yarn package each feeding yarn into the bore of the spindle above the packages, an improved device for guiding the yarn which is unwinding from the lower package to prevent its contacting the upper package comprising a disk between the packages and a corrolla device supported on the disc to guide the yarn from the lower package away from the upper package, and the corrolla device comprising plural interlaced leaf members which lie against the upper package and follow its shrinking diameter so that the corrolla automatically shrinks in diameter as the yarn is used up.

Abstract: For use on a loom having a pattern selector, a plurality of heddle raising units, each comprising a pulley supported on a shaft and having a funicular cording member wound on the pulley and supporting a heddle, the shaft supporting two annular driving members on which the pulley is journaled, and the unit having means for rotating one annular member in one direction and the other annular member in the opposite direction synchronously with the cycle of the loom, and the pattern selector controlling a device for selectively coupling the pulley to the one of the annular members whose rotation is in the correct direction to wind the funicular member on the pulley to raise the attached heddle.

Abstract: A double-lift Jacquard mechanism in which the heddles are connected to resilient metal blades which pass through first and second plates that are reciprocated transversely of the blades in opposite directions, the blades having catches thereon which are selectively engaged by bars on the first plate to raise the associated heddles and having shoes thereon which engage the second plate to lower the associated heddles when the second plate is reciprocated, and the blades being deflectable to select the engagements thereof with the plates by deflection magnets which are under the control of a pattern selecting device to determine which directions the respective blades will be moved in by the plates.

Abstract: The invention relates to a device for pneumatically threading a yarn in a double twist spindle. It is disposed inside a sleeve connecting two tubes adapted to constitute the central shaft of a double twist spindle. A yarn brake capsule passing through the flat rod of a piston is disposed inside the sleeve, its ends abutting against the opening of the bore of one tube and against that of the central hole of an end piece mounted at the end of the other tube. When compressed air is sent into the bore of the first tube, the piston is moved, causing a lateral shift of the yarn brake capsule, thus allowing passage of the yarn along the bore of the spindle. The invention is particularly applicable to double twist spindles.

Abstract: In a double-twist spindle comprising a shaft with a transversely elongated plate the ends of which support a rotatable annular disk, the bobbin-carrier rotatably supported by the shaft being maintained against rotation therewith by a hollow stabilizer which surrounds the shaft and which is itself rotatably mounted about an axis inclined with respect to the axis of the shaft, the first end of the stabilizer being mounted in the bobbin-carrier and the second end of the stabilizer being supported in a ring fixed to the frame and disposed on the other side of the elongated plate with respect to the bobbin-carrier, the said stabilizer having a transverse aperture for passage of the elongated plate, the connection between the elongated plate and the stabilizer is realized by non-mechanical means, as for instance by two pairs of magnets respectively fixed to the plate and to the stabilizer, the facing poles of the magnets of each pair being of selected polarity capable of generating forces which tend to maintain an

Abstract: In a double twist spindle device wherein the support of the supply bobbin is retained against rotation on the spindle proper by two rows of permanent magnets disposed opposite each other each side of the radial passage of the yarn issuing from the axial bore of the spindle, one of the said rows is mounted in such manner as to be displaceable through a limited extent with respect to its supporting member. If the frictional torque between the spindle and the bobbin support temporarily reaches such an excessive value that the relative angular displacement of the rows becomes equal to the pitch of the successive magnets in both rows, the repulsive magnetic forces displace the said displaceable row in such manner that the undesirable accelerating effect of the magnetic forces on the bobbin support is eliminated or at least strongly decreased and that the rows may again find a new state of equilibrium when the excessive frictional torque disappears.

Abstract: A device for delivering multiple yarns, each taken from a bobbin, comprises means for braking each yarn, other means for acting on less stretched yarns so that they advance at the same speed as the most stretched yarn, and finally a guide ensuring the displacement of these yarns parallel to one another. It may further comprise a conventional brake with elastic cheeks for each yarn, an idle drum with a non-skid peripheral coating with which the yarns cooperate before passing over a separator system.

Abstract: A device for pneumatically threading yarn for a double twist spindle supporting at least one yarn brake, is characterized in that said device comprises a pneumatic system operative firstly to retract the normally applied yarn brake and then to achieve the automatic threading of the yarn through the shaft of the spindle, likewise in pneumatic manner.

Abstract: The invention relates to a device for controlling the heddles of a weaving loom, comprising an assembly 1 adapted to select the heddles 12 to be actuated and which is provided to be like the feeler needle selection and push part of a Verdol-Jacquard mechanism, on the other hand the device comprises three plates 14,15,16, the latter of which is stationary and against which stops 17 of the heddles rest. The plate 15 is displaced to lock the stops between 14 and 15 then the assembly 14-15 is displaced alternately in the vertical direction to provoke the rise of the selected heddles. The invention is more particularly applied to the weaving of figured fabrics.

Abstract: A spindle for twisting frames comprises a stabilization whorl at an angle to the shaft of said spindle intended to maintain the bobbin-carrying and piece angularly fixed. The whorl is a single block formed with a radial bore therein which is traversed with clearance by a member formed on a rotating flange connected to the spindle axis and which holds the usual disk for driving the thread to be twisted.

Abstract: A device for the selective actuation of the needle selection members in needles looms using a perforated paper pattern, of the kind comprising memory means for recording information which corresponds to the perforations of the paper, them for controlling, as a function of this information, the members it is desired to displace is characterized in that it comprises a memory having displaceable members lockable in position, means for applying this memory to the perforated paper in order to displace selectively the said elements as a function of the perforations and means for applying it then to the selection members in such manner that the elements displace the latter in accordance with the information they have registered.

Abstract: A clutch device interposed between a driving shaft 1 and a drum 2-4 rotatably mounted thereon to drive frictionally a yarn winding bobbin in a spinning, twisting or doubling frame comprises a cylindrical sleeve 5 carried by shaft 1, a string 6 wound on sleeve 5 and having one end attached to the hub 2 of drum 2-4, a plate 9 slidable on shaft 1 and to which the other end of string 6 is attached, a frictional abutment ring 11 secured to shaft 1, a spring 10 to apply plate 9 against ring 11, and a pusher 14 by means of which plate 14 may be moved apart from abutment 11 to de-clutch drum 2-4 from shaft 1. A frictional lining 13 is disposed on ring 11 to enhance its driving effect on plate 9 to more tightly wind string 6 on sleeve 5. Another frictional lining is provided on pusher 11 to act on plate 9 when the latter is disengaged from ring 11.

Abstract: In a tufting machine for making patterned pile fabric, each thread passes on two successive guiding pulleys horizontally spaced from each other and selectively displaced vertically independently from each other by the hooks of a loom Jacquard. A thread-lowering beater bar is vertically reciprocated between these pulleys in unison with operation of the machine to draw from the supply bobbin a predetermined length of thread for the formation of a pile loop by the corresponding needle of the machine, a unidirectional thread clamping device being provided between the second pulley and the needle to prevent thread being drawn from the needle itself. The length of thread thus fed to the needle at each advancing stroke of the latter thus varies as one or both of the pulleys are raised by the Jacquard. A stationary bar may be disposed at an adjustable height laterally of the pulleys to permit of altering the length of thread fed to the needle when the adjacent pulley is low.

Abstract: A double twist spindle yarn stop device of the type fitted with a thread feeler lever arm for automatic stopping of the untimely unwinding of the thread in the event of its untimely accidental breakage, the device operating by descending to a lowered position overlying a spool of the textile twisting machine on which the device is used, the stop device being characterized by a stirrup provided at the free end of the thread feeler lever arm, said stirrup having depending shanks laterally displaced with respect to the thread guide to fall therepast, and disposed to straddle the hollow spindle and rest on a centering tip carried therearound above the spool, the thread wrapping around the shanks of the stirrup and being stopped by binding thereon.

Abstract: This device for making tuft figured fabric comprises, between the feed bobbin containing the tufting thread and the fabric to be tufted, a friction roller adapted to be shifted for engaging either of a plurality of cylinders driven at different speeds; said roller is mounted at one end of a rigid support having its opposite end responsive to a snap-action spring having an intermediate unstable position; the support is connected intermediate its ends to one end of a two-armed bell-crank lever fulcrumed at its apex to a fixed pivot pin and connected at its opposite end to another snap-action spring. Adjacent said snap-action springs each of said support and lever carries a stud engaging a vertically elongated aperture formed in a loop formed in a corresponding jacquard cord. Each friction roller has on its outer periphery an annular tire of resilient soft material formed with transverse grooves and adapted to engage the cylinder surfaces.

Abstract: A punching machine for the cards or paper bands used in jacquards, dobbies and the like, comprises horizontal punches individually actuated by pusher means through presser rods which may be selectively brought to an ineffective oblique position. Each presser rod is attached to a needle itself attached by its upper end to a vertical rod. All these vertical rods are alternately raised and permitted to return downwardly so as to reciprocate in front of individual electromagnets which are selectively energized to retain some of the said vertical rods at their raised position. The vertical rods are disposed in successive longitudinal rows and the electromagnets are arranged in corresponding superposed horizontal elongated banks, the vertical rods of each row terminating upwardly short of the next bank of electromagnets in order not to interfere with them.

Abstract: In the automatic reading of a weave design from a pattern including weft rows and warp rows, the advance of the reading assembly (photo-electric cells) from one weft row to the next one is effected by a step-by-step electric motor which receives "secondary" pulses from a ring counter to which "primary" pulses are applied, whenever the number of such "primary" pulses received by said counter is equal to the quotient of the number of "primary" pulses required to displace said assembly from one extreme weft row to the other one, divided by the number of weft rows minus one unit, this quotient being taken as an integer.The incremental advance of the reading assembly for each step of the motor is much smaller than the centering tolerance of said assembly required to place it in front of each weft row, and the number of "primary" pulses required to determine such a step is selected much higher so that the error which results from the fact that the quotient is limited to an integer is also negligible.