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 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 weaving machine comprising a dobby and a Jacquard machine as the control members, wherein the dobby is controlled from a single pattern card in the Jacquard machine. Harness cords connect the Jacquard hooks to the heddles and to a movably supported member in the dobby. The coordinated movements of the Jacquard hooks will effect a simultaneous movement of the movably supported member in the dobby so that operations of the Jacquard machine in response to the information on the pattern card will simultaneously effect an operation of the dobby.

Abstract: A loom patterning mechanism including a continuously movable pattern information means and pattern sensing means associated with the information means and movable synchronously therewith over at least part of a loom cycle, the sensing means serving to initiate a loom function.

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: The Jacquard machine employs a selector system for blocking and un-blocking the pressers (e.g. Jacquard needles) wherein use is made of a control means comprised of two electrically magnetizable relatively movable rods. Upon energization of a magnetic field generator, the rods move away from each other so that one of the rods is moved into a blocking position relative to a presser needle. Upon de-energization of the magnetic field generator, the rods come together so that the presser needle is unblocked.

Abstract: The Jacquard machine employs a selector system for blocking and un-blocking the pressers (e.g. Jacquard needles) wherein use is made of pivotally mounted locking levers between a control element and each presser. The control elements which may be in the form of multimorphous bending strips or a switching means comprised of two electrically magnetizable relatively movable rod-like members, engage with the levers to cause pivoting of the levers into a blocking or non-blocking position relative to the pressers.

Abstract: This relates to a device for exerting a back-pull on the heddles of Jacquard looms. In such looms the upper end of each heddle is connected to a patterning machine and it is necessary that the lower end of the heddle be connected to a pulling device which applies the necessary pull in the opposite direction to return the displaced heddle. Each heddle has permanently connected thereto a piston which is positioned within a cylinder guide with one end of the cylinder guide being open into a chamber wherein a pressure other than atmospheric pressure is maintained and the opposite end of the cylinder guide is open to the atmosphere in a manner wherein each piston and its associated heddle is displaced away from the patterning machine. The pull-back pressure may be varied by varying the pressure within the chamber.

Abstract: The jacquard needles are moved lengthwise via a reciprocable drive element and a selector in order to selectively press the lifting wires in a pressing direction. Each needle carries a force accumulator, such as a coiled spring, which abuts against the drive element and allows the drive element to move in the pressing direction when a given needle is not to be moved. Each needle is also locked to the drive element to move with the drive element in a direction opposite the pressing direction.

Abstract: The coupling has at least one coupling part secured to the heddle frame with a toothed driving element extending from the beam into an opening in the drive lifter to engage with a second toothed coupling part. Each coupling part within a drive lifter is spaced from a wall of the drive lifter to define a passage to receive a driving element.

Abstract: A shedding device for a double-lift open-shed Jacquard loom which comprises a pair of vertically shiftable horizontal blades adapted to pass each other and cooperating with lifters which are provided with projection in opposite directions respectively engageable by the blades. The blades of each are provided with spaced apart lifter-engaging surfaces adapted to engage the respective projection upon upward movement but to deflect the lifter away upon downward movement past the projections. Between these spaced apart surfaces of the blades, the blades are incapable of engaging the lifters and the lifters can be shifted transversely to the blades to position them in line with an inclined engaging surface of the blade or in a region between such engaging surfaces.

Abstract: A double lift, open shed Jacquard loom comprises a Jacquard prism and a plurality of hooks controlled by suitable control needles. The leg of each hook contains three hook noses that are engageable with upper and lower sets of opposed, parallel knives. The sets of knives are movable toward and away from each other by a crank or camming mechanism. The hook noses are also engageable with a stationary set of arresting knives. The hook are guided and maintained separated from each other by upper and lower stationary rakes, and the upper set of knives is located above the upper rake. In order to reduce friction between the hooks and rakes caused by sliding contact therebetween, lifting of the hooks by the upper set of knives is vertically guided along a curved path, and lifting by the lower set of knives is vertically guided along a straight line path.

Abstract: The jacquard selection system employs a slider between each multimorphous bending element and jacquard needle to absorb the stress imposed by the needle during a sensing operation. The sliders move within a guide in which they are spaced from the walls of the guide with a clearance. When a needle is to be blocked so as to sense a position of a bending element, the slider is moved by the bending element into the path of the needle so that, on moving, the needle abuts the slider and pushes the slider against the guide wall. The sliders may be mounted on the bending elements by springs or may be movable therewith via a recess which receives the free end or a resilient tip on the free end of the bending elements.

Abstract: An improvement in a Jacquard-harness of a weaving machine in which the spacing of the heddles for adjusting the width of the material are adjustable. The harness is composed of a plurality of series arranged comber boards each having guide bores therein adapted to receive a harness cord therein. A connection is provided between a pair of such comber boards and consists of rigid, non-bending connecting rods each connected through a pivotal joint. A comber board is secured to a shaft which forms the pivotal joint. A portion of the bores in the comber boards lies on the axis of the shaft which also constitutes the central axis of the comber board. The remaining bores in the comber board are arranged in a mirror image manner symmetrical to the plane connecting the center lines of the comber boards.

Abstract: A pattern control mechanism for embroidering machines of the type which use punched tape and a gear-type analog computer with input cam slides for the generation of pattern movements in a large number of different magnitudes, the improvement relating to the cam slide driving mechanism, where pivotable horizontal slide pushers which are attached to the cam slides are selected vertically by transversely moving selector bars whose position is determined by feeler needles of the punched tape sensing device, and where the raised non-selected slide pushers remain back, while the lowered selected ones are engaged by a reciprocating pusher drive bar. The selector bars, which execute a vertical approach motion, have selector teeth which prevent the simultaneous drive engagement of both cam slides.

Abstract: A Jacquard machine of the type possessing to-and-fro moving lifting wires having arresting hooks for coupling with stationary arresting blades. At least one stationary guide edge is provided at the region of a stationary arresting blade fixing the lower shed position. This guide edge cooperates with a projection located at the neighboring lifting wire moving into the lower shed position, so that the lifting wire is deflected and in the lower shed position is coupled with the associated stationary arresting blade.

Abstract: The connecting members are each made to receive a lifting wire in snap-fit manner at one end while receiving a knot or widened head of a harness cord or a distribution stirrup at the other end. The connecting members allow the harness cords to be readily connected to a lifting wire. The connecting members each have a clip-like part which may either engage in a recess of the lifting wire or may have a plurality of longitudinally spaced recesses to receive a collar of a lifting wire in one of the recesses. A spring may also be used in the connecting member to effect engagement.

Abstract: The lifting wires are provided with a reinforcement within the pressing zone to rigidify the wires while the hook-containing zones remain bendable. The reinforcement is in the form of webs secured to the wires, widened portions of the wires, or a bowed member secured to the pressing member, i.e. jacquard needle, and pivotally articulated at the ends of the lifting wire.

Abstract: The griffes are provided with projecting means on two sides in order to guide the drive nebs on the lifting hooks during shifting of the lifting hooks. The two means are of different length with one acting as a pressing ledge to guide a lifting hook onto a neb of an adjacent griffe while the other acts as a guide ledge to block movement of a lifting hook onto an adjacent griffe.

Abstract: Hook construction for the harness pull of a double-lift open-shed Jacquard machine. For use in a Jacquard machine, as aforesaid, there is provided a construction for a resilient harness pull hook, same having relatively resilient characteristics in the upper portion thereof and relatively rigid characteristics in the lower portion thereof. Said construction may be obtained by appropriate treatment of the hooks during the process of manufacture of same or said characteristics may be obtained by fastening, as by welding, two separate components, one thereof being relatively resilient and the other thereof being relatively rigid. An offset may be advantageously provided in the resilient portion of such hooks for improving the guidance thereof.

Abstract: An apparatus for the mechanical operation of thread or yarn guides in textile making machines. The apparatus includes selectors arranged longitudinally of the guides, and by means of pulses supplied from outside, the selectors are adapted, by form-closed engagement with the guides, to prevent and, in the absence of an engagement, to permit the guides being carried along by continuously reciprocating operating means. The apparatus also includes spring means which tend to move the guides out of such an engagement with the selectors as will prevent the guides being carried along by the operating means.