Abstract: A control mechanism for the selection of the weft yarns in rapier looms with presenting needles on presenting levers, controlled by a plurality of levers and connecting elements from a series of electro-magnets, wherein the presenting and control levers can moves rotatably to and fro about the respective shafts on which they are mounted.

Abstract: A dobby loom provided with up-and-down movement instruction apparatus which is controlled to two positions, operation and non-operation positions, by programmed magnetically-driven apparatus and wherein the instruction apparatus decides up-and-down movements of a held frame according to the two operation and non-operation positions. The magnetically-driven apparatus includes a magnet core and a movable lever, movable to a first position to select one of the operation and nonoperation positions and to a second position to select the other of the operation and nonoperation positions. The movement of the movable lever is controlled by magnetic force selectably provided between the magnetic core and the movable lever. A plate of nonmagnetic material is interposed between the magnet core and the movable lever.

Abstract: An electromagnetic device is provided for use, for example, as a yarn brake, a rely nozzle valve, a weft yarn stretching nozzle and the like. The electromagnetic device has a pole piece associated with a winding connectable to an electric line. A spring strip is fixedly mounted at one end and projects over a curved abutment surface on the pole piece. In the absence of a magnetic field, the spring strip is disposed in spaced relation to the abutment surface. When a magnetic field builds up in the winding and the pole piece, the free end portion of the strip engages with the abutment surface of the pole piece along an increasing length, for example, to brake a yarn therebetween and, as the magnetic field intensifies, more and more zones of the spring strip engage the pole piece. Consequently, the initial speeds at which the strip moves at engagement and upon cessation of energization of the winding are relatively high.

Abstract: A hook control apparatus for a shed forming machine comprises lift blades for lifting the hooks which are adapted to pivot in a bottom shed position between a hooking position and a non-hooking position relative to the blades. The hooks are supported in the bottom shed position on a hook bottom member and are biased towards their hooking position. The apparatus further includes one or more electromagnets for arresting the hooks in their non-hooking position relative to the blades. The electromagnets are arranged on the other side of points of reversal of the movement of the lift blades, which are remote from the respective hooks. A respective elongate control member is disposed movably in the direction of movement of the lift blades between each of the electromagnets and hooks.

Abstract: A shed-forming device for a textile machine which includes lift blades (e.g., 3) arranged to hookingly engage or slidably contact an associated hooking engagement element (e.g., 4) such that the hooking engagement element is either lifted into an upper shed position to effect a shed change or alternatively, is pivoted into an arrested lower shed position by the attractive force of an associated electromagnet (e.g., 5). The hooking engagement elements are arranged in pairs by flexible connecting elements (e.g., 9) which form a loop into which is disposed a roller (e.g., 12) operatively attached to a shed such as a harness (e.g., 13). A pulling force generated by the movement of the roller and harness serves to pivot or position the hooking engagement element for cooperation with the lift blades and accordingly, facilitates changing of the harness.

Abstract: An open shed Jacquard machine in which two hooks are connected at one end over a common pulley and can be coupled with knives when moving in opposite directions. A common electromagnet arranged between the hooks serves for control according to a pattern in a defined shed position. The electromagnet is mounted in a housing to tilt or see-saw about an axis. In the reading position each hook is mechanically moved to approach the pole of the electromagnet, in particular to abut against it.

Abstract: A pulley-block drive of an open shed Jacquard mechanism is sectionally controlled by a movable suspension apparatus. Pulley bands or harness cords are attached to one of the ends of the movable suspension apparatus. The movable suspension apparatus is suspended from hooks which can engage with the knives of the jacquard machine so that the movable suspension apparatus is driven by the knife grid of the jacquard mechanism.

Abstract: This invention relates to a device for forming the shed in a weaving loom, wherein the elements which constitute the system for lifting the warp yarns are, from top to bottom, an electro-magnet, two blades, two mobile hooks and a lifting beam. These elements are disposed one below the other between two vertical separating partitions constituting an assembly. A certain number of assemblies are assembled in a row so as to form a module which may be selectively inserted within the loom frame.

Abstract: This invention relates to the shed forming devices in weaving looms wherein each of the retaining hooks is in the form of an element which is pivotable about a horizontal pin with each element provided with a tail portion which is subjected to the reaction of a compression spring so that the head portion thereof lies in a rest position above the toe of a corresponding mobile hook. When the mobile hook causes a retaining hook to pivot so that its nose or head is in an outer position with respect to the toe, an electromagnet of the device may be selectively activated to retain the retaining hook in this outer position to thereby prevent the mobile hook from being restrained by the retaining hook.

Abstract: This invention is directed to improved mobile hooks for the shed forming device of weaving looms wherein the mobile hooks are disposed at each of the ends of a funicular element. Each hook includes a web bordered by a vertical heel disposed in a slideway formed by grooves made in two opposing separating partitions with the web including a toe adapted to be hooked by the curved ends of a conventional blade element which is utilized to maintain the hooks in their uppermost elevated position. The hooks further include portions which are adapted to be gripped by conventional knives as the knives are moved vertically in reciprocating motion and also a push element adapted to displace the hook retaining blade against the core of an electromagnet which is used to selectively urge the retaining hook into engagement with the mobile hook when the electromagnet is activated.

Abstract: A heald rod retention device comprising an elongate body having a first body portion adapted to guide reciprocal movement of the terminal end portion of a heald rod and a second body portion provided with a first latch formation for engagement with a second co-operating latch formation on the heald rod, the heald rod being guided by the first body portion so that during reciprocation the second latch formation moves passed the first latch formation without engagement, at least one solenoid activated magnetic pole piece mounted on the second body portion and extending along the path of reciprocation of the heald rod and which on activation of the solenoid causes deflection of the terminal end portion of the heald rod during its reciprocal movement to bring the first and second latch formations into engagement, and stop means for limiting the amount of deflection of the heald rod so as to prevent contact between the heald rod and the pole piece.

Abstract: A heald rod retention device for selectively engaging the terminal end portion of a reciprocating heald rod, the retention device having an electrically activatable magnet for laterally deflecting the terminal end portion from its path of reciprocation, the magnet including north and south poles located side by side and extending along the path of travel of the heald rod so as to create a magnetic flux path across the width of the rod.

Abstract: A single heddle control device having a selecting device containing lifters which are actuated by knives of a knife device. The knife device is connected in a drive arrangement with a shaft drive of a weaving machine and the selecting device has coupling means which are formed from the lifters and electromagnetically actuated control projections. The coupling means arrest the lifters in a starting position which corresponds to the stroke position which opposes a pretensioning force of the single heddles. The electromagnets of the selecting device are connected with an electronic pattern control apparatus.

Abstract: An electronic jacquard mechanism for controlling shedding motion of warps by selectively holding dropper needles by means of solenoids in accordance with command signals generated from a computer. Movable cores of the solenoids are directly fixed on one end of the dropper needles. Housings of the solenoids, including stationary cores and coils, are secured directly on a printed board associated with the computer. The solenoids can be densely arranged on the printed board corresponding to the arrangement of the dropper needles, allowing greater compactness of the mechanism.

Abstract: Electromechanical control arrangement for controlling movement sequences in a textile machine, in particular for controlling the warp thread movement in a mechanical loom. The control arrangement includes a control cam, over the face of which a push member runs which effects the movement which is to be controlled; a continuously running drive shaft for the control cam; and a switching or control coupling, which is constructed as a spring coupling, connects the drive shaft and the control cam; and is switched via a magnet in conformity with the control pulses applied thereto, thereby controlling the rotation of the control cam.

Abstract: A mechanism for selecting and raising heddle hooks in a weaving loom in response to control signals delivered by a pattern reader, wherein the mechanism includes a flexible blade for each hook and further includes a catch associated with each blade and operable to connect the blade with the hook thereby to select the hook, and the mechanism further including an electro magnetic coil operative for selecting each blade and catch in response to said control signals delivered to a shift register whose stages energize the coils, the hooks being supported by one plate and the selecting mechanisms being supported by another plate, the plates reciprocating toward and away from each other in synchronism with the loom motion.

Abstract: A shed forming arrangement for a loom comprises lift elements which move in opposite directions to each other, with holding members arranged on each lift element. The holding members are connected together in respective pairs by connecting members each forming a loop in which a roller is carried. The roller is operatively connected to the shed forming means of the machine. The holding members are in the form of magnet armature members and are operatively associated with selectively actuable holding magnet means, thereby to control a lift movement of the respective roller.

Abstract: Two rods are provided which are reciprocal between two end positions cooperating with two flexible retaining members, an electromagnet is located between the retaining members, the electromagnet includes a core having two flanged sections of different widths, an armature body each is mounted to the retaining members, the armature bodies are arranged such that they on the one hand abut flatly the border of the two flanged sections and such that on the other hand an air gap is provided between each armature body and the narrower of the flange sections, if the knife moves a rod toward its upper position the retaining member is deflected such to adjust the air gap prevailing between the narrower flange section of the electromagnet and the armature body to a predetermined value, and in operation this control means has two exactly defined control instances during which the deflection of the retained members proceed definitely toward the correct side regarding the function and the power consumption of the electromag

Abstract: There is provided an electromagnetically controllable coupling means between the drive shaft and a cam element of a textile machine. A latch mounted on the cam element and rotatable with it is biasable by a spring to interact with grooves in said drive shaft. Two rocker arms rotatable about fixed axes are each provided with a strikers and are swingable back and forth between a first position in which said striker holds the latch out of interaction with the grooves and a second position in which the latch is released in order to interact with said grooves. A pair of anchors influenced by program directed electromagnets serve to hold the said rocker arms in the first position. A stopping arrangement prevents further rotation of the cam means when the latch moves from one into the other of the aforementioned rotation positions. Each anchor attached to the appropriate arm is in the first position of the rocker arm presented proximate to the pole face of its appropriate electromagnet.

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: 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: Apparatus for the individual control of the raising and lowering movement of warp yarns on a fabric weaving loom, in which the warp yarns are passed through guide eyes, these eyes being mounted on the piston rods of fluid pressure operated piston and cylinder jacks. There are a large number of jacks, these being grouped in a plurality of units which are removable and are juxtaposable with respect to number and position in accordance with the desired density of warp threads, the units being arranged in at least two tiers. This gives great flexibility of control.

Abstract: A loom with shed forming means including healds, of which at least the carrier parts are displaceably mounted in guiding grooves formed in a bed extending along the whole machine width, at least one control mechanism being assigned to said carrier parts of the healds, said control mechanism being movably mounted on a guideway parallel to said bed. The control mechanism includes a selecting mechanism and a resetting mechanism. The selecting mechanism is preferably formed by a selecting magnet with a guiding means therefor.The loom of the invention may be one with progressive shed forming, or one with single shed forming.

Abstract: An apparatus for selective movement of individual lamella shaped heddles for the formation of a shed on a loom in which the heddles are positioned between flat guide elements with each heddle being selectively movable to one of two predetermined different positions.