Abstract: Different weaving materials, apparatuses, and methods are provided for producing woven textiles having different functional and aesthetic characteristics as compared to woven textiles produced using conventional methods. The different weaving materials comprise reactive materials or combined materials produced by an intermittent splicer. The different apparatuses include finishing devices for introducing organically-shaped lateral edges and interior apertures, and three-dimensional effectors for introducing three-dimensional aspects into a product as it is being woven. Weaving methods include simultaneously weaving fine denier panels and coarse denier panels.

Abstract: An electromagnetically-operating Jacquard control device has an electromagnet (1) with a magnetic core (3), an armature (8) and a limit stop (14) for each controlling element (16) to be controlled. The limit stop can optionally be brought into the movement path of a hook (18) attached to the controlling element (16). Two lovers (5, 11) are provided, the first bearing the armature (8) and the second bearing the limit stop (14). These two levers are coupled to one another with positive engagement such that the forces are transmitted substantially perpendicularly to the plane formed by the limit stop (14) and the swivel pin (12) of the second lever (11). This enables wear-related incorrect operation to be avoided.

Abstract: A process for determining the arrangement and step sequence of heald shafts of a heald loom for weaving a fabric including a backing fabric having a fabric pattern and an ornamental design. The ornamental design of the fabric is plotted and/or displayed by means of a computer. Alternatively, the combined appearance of the ornamental design and the fabric pattern may be plotted and/or displayed. Next, the number of heald shafts necessary for weaving the ornamental design or the combined appearance is determined. Heald shaft arrangements that are conventionally used and/or available which will weave a fabric design similar to the ornamental design or the combination designed are plotted and compared with the heald shafts determined for weaving the ornamental design or the combination design. The step sequence of the individual heald shafts in the heald loom from the assigned heald shaft arrangement is determined.

Abstract: Attached to a dobby for use in a loom is an actuator which is, in turn, attached to a first finger and a second finger to move them in unison in a cycle. The first and second fingers control the position of an upper hook and a lower hook. These hooks, when engaged by a knife, will raise a frame. During the first half of a cycle, the actuator positions both fingers in either an upper or lower position. In the second half of the cycle, the actuator positions the fingers in either the upper or lower position.

Abstract: A dobby comprises first and second hooks relatively moved in the direction of approaching and leaving each other, a lever for selectively forcing the second hook to be engaged with the first hook, and a pusher for selectively providing the force to the lever. One of the lever and the pusher has a cam-shaped contact face brought into contact with the other of the lever and the pusher.

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: A Jacquard emulator for operating the pins of a Jacquard mechanism as is used in the textile industry. The emulator has a number of disks mounted on the shafts of respective stepper motors. The disks have a number of holes therein so that when the disks are brought into contact with the pins by axial movement, predetermined pins align with holes in the disk so that required patterns of pins are actuated. The stepper motors are controlled to orient the disk to vary the pattern of pins actuated as required by a desired program.

Abstract: A reading device for use in a dobby having a peg cylinder connected to a heddle frame for operation thereof comprises a first bracket, a second bracket, a means for permitting physical contact between the first and second brackets and device to oscillate the second bracket so that the peg cylinder supported on the first bracket is moved to any of a normal, reversed and leveling positions.

Abstract: A card switching apparatus for a dobby comprises a bracket mounted for rocking motion around a shaft, a cylinder supported on said bracket and having a rotary shaft, a gear securely mounted on said rotary shaft of said cylinder, an input power shaft, another gear securely mounted on said input power shaft, and an idle gear interposed between the two gears, and that said idle gear has a rotary shaft which is supported for movement along a particular locus and which is moved in response to a rotational angle of a motor shaft.

Abstract: In a reading device for a dobby machine, the reading levers and retaining hooks are pivotally mounted on separate axes. Each reading lever rotates a retaining hook so that the angular velocity of the retaining hook decreases as the retaining hook pivots from its disengaged to engaged position and increases when the retaining hook is disengaged. This acceleration and deceleration cushions the impact that the retaining hook experiences with changes in rotational direction.

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: A dobby includes a needle mechanism having a reading needle, the head of which, during reading of a nonperforated location on a pattern card, engages a pawl and, during reading of a hole in the card, releases the pawl to permit the pawl, under the force of a spring, to tilt about an axle and in this manner to have a surface thereof disposed in front of an edge of a key-shifting gate. During the operating movement of the axle, the pawl pushes the key-shifting gate, which slides in rectilinear guides, wherein a key is carried along by a cam which encircles the opening for the shaft 1. The key is radially movably supported on the eccentric ring and engages one of two openings on the connecting rod, which results in a standstill of the heddle frame, or engages one of two grooves in the drive shaft. In the latter case, the drive shaft carries the key and the eccentric ring along as it rotates and moves the connecting rod, which triggers a movement of the heddle frame.

Abstract: A command device for a dobby machine, which device includes a pattern card having a plurality of perforations bored in a pattern corresponding to a desired fabric and driven in one direction and a feeler needle suspended from a horizontal needle and displaceable longitudinally while being guided by a guide member so as to permit the insertion of a lower end portion thereof into the perforations and the detection of presence or absence of the perforations in the pattern card, whereby to give an operational command to a drive mechanism of the dobby via the horizontal needle so as to cause a heald frame to undergo prescribed up-and-down movement for production of the desired fabric. The feeler needle is elastically flexible in the direction of motion of the pattern card at a portion below the guide member so as to avoid damages to edge portions of the perforations of the pattern card, which damages would otherwise take place due to repeated reciprocation of the feeler needle into and out of the perforations.

Abstract: Dobby for a weaving loom in which control of the operative and non-operative positions of retaining hooks or hook arms which are engaged with and disengaged from hooks of heald frame-driving levers to actuate desired heald frame is electrically performed through solenoids corresponding to the respective levers, which are actuated by an electronic control system having a micro-computer.

Abstract: This invention relates to a leveling device in which a shaft (7) of a card cylinder (6) is supported by a bearing of a card cylinder bracket, base portion of the card cylinder bracket is pivotally attached to a machine frame, and the card cylinder bracket can be rocked between working attitude and leveling attitude. The card cylinder bracket is urged into the leveling attitude by a spring or the like, and it is held in the working attitude and the leveling attitude by a cam or a crank arm which is disposed near the card cylinder (6) and installed to a parallel shaft being in parallel to the cylinder.

Abstract: A positive dobby machine characterized in that return knives (16a), (16b) move in parallel and have pressure receiving planes (18a), (18b) perpendicular to the moving direction, first pressure receiving planes (7a), (7b) which can be contacted in surface contact state with the pressure receiving planes (18a), (18b) of return knives (16a), (16b) are formed on hooks (6a), (6b) pivotally attached respectively to upper and lower ends of a vertical lever (5), and the first pressure receiving planes (7a), (7b) of the hooks (6a), (6b) is pushed in surface contact state by the pressure receiving planes (18a), (18b) of the return knives (16a), (16b) thereby the vertical lever (5) is driven.

Abstract: The invention provides improvements in the members of a loom dobby reading unit, which enable the reading unit and control unit to be structurally separated. For this purpose, the reading unit rockers act on the control unit by simple bearing and thrust contact between a tappet provided on the rockers and the horizontal needles for the lifting rods of the control unit hooks. In addition, there are provided a very rigorous guide for the reading unit rocker movements, an improved mechanism for controlling the lowering movements of the rocker thrust rods, and an improved mechanism for controlling the pressure bars, said mechanisms both using precise cam controls.

Abstract: Improvements are made to members of a loom dobby control unit so as to allow structural separation between the reading unit and control unit. For this purpose, the reading unit rockers operate on the control unit by simple bearing and thrust contact with the horizontal needles which control the hook lifting rods. Moreover, the lifting blades for said rods are controlled together with the hook lowering plates by the motion of shafts which control the dobby knife oscillations.

Abstract: The present invention relates to electromagnetic devices for controlling dobbies and other weaving systems, wherein the control unit which contains the electro-magnets is borne by an oscillating frame on which is mounted an equal number of selectors associated with a spring which tends to move them away from the associated poles of magnetic attraction. Each selector acts selectively on the actuating hooks of the dobby, and a fixed stop ensuring its return into applied position against the magnet upon return into a non-actuating position. The device is applicable to the control of a dobby with double swinging levers or to the control of a rotating dobby.

Abstract: A method and apparatus for synchronizing all heddle frames of a weaving machine which are operated by a punched-card-controlled dobby. The pattern card cylinder or the reading needles are moved to positions in which during a read, all the reading needles simultaneously engage the pattern card webs between the control points or the holes of the pattern card. Through this, the heddle frames are moved to the lower shed position by further operation of the dobby.In a preferred embodiment, the card cylinder is stopped in the center of the indexing movement effected by the driving projection of the drive shaft. The driving projection is laterally uncoupled from a ratchet gear by a hand lever and, simultaneously, further movement of the ratchet gear is prevented by the engagement of a locking member in a tooth space of the ratchet gear.

Abstract: An apparatus for controlling a dobby in which reading needles read a punch card and each needle influences the movement of a respective heddle frame. Two outer disks having annular toothed portions arranged on the axial facing sides thereof which face one another are secured on the shaft of a punch card drive cylinder. The teeth of the toothed portions are angularly offset by one-half the tooth pitch. Between the two outer disks, and freely rotatably supported on the shaft is a central disk with annular toothed portions on the axially facing sides thereof which are also offset by one-half the tooth pitch. A movable guide member for the reading needles is secured on and driven reciprocally by the central disk. Upon indexing the pattern card for one pick, the toothed portion of one outer disk moves the central disk toward the second outer disk and effects engagement of the facing toothed portions on the central disk and the second outer disk.

Abstract: In a negative double lift dobby machine, a balance lever 8 is pivotally attached to a jack-lever, and driving members 16, 17 disposed respectively in front of upper and lower ends of the balance lever 8 reciprocate in opposite phases with each other. Driven hook levers 10, 11 are pivotally attached to the upper and lower ends of the balance lever 8, and driving hook levers 18, 19 opposite to the driven hook levers 10, 11 are pivotally attached to the driving members 16, 17. Command levers rotate the driving hook levers 18, 19 to be engaged with the driven levers 10, 11 respectively. Flat surfaces 10b, 11b constituted in the driven hook levers 10, 11 respectively push stoppers 12, 13 under surface contact state.

Abstract: A reading and lifting device has a force amplifying bar which can be reciprocated vertically and is driven positively, and a reading needle is slidably supported therein. A pattern card with nonperforated and perforated points is provided below the force amplifying bar. When the needle hits a nonperforated point, the needle is moved back into the force amplifying bar. In one embodiment, the needle slides with its head on a surface which effects a swivelling of a lock member. Through this, an end of the lock member comes to lie in front of an offset portion of a control arm. The force amplifying bar during its downward movement then carries the control arm along against the force of a spring. The device facilitates the sensitive reading of a pattern card and the forceful passing on of the control information read.

Abstract: A reading needle is slidingly supported in a force amplifying bar which is automatically moved up and down and the reading needle reads nonperforated and perforated points of a pattern card. In the case of a perforated point, a pivotal lock member biassed by a spring remains in a first position and pushes a draw arm of a correcting element downwardly unless this draw arm is already in a downward position. When the reading needle reads a nonperforated point, it is moved within the force amplifying bar by the pattern card during forward movement of the force amplifying bar. A sloped surface of a slot in the lock member slides over the head of the reading needle and swings the two-arm lock member to a second position in which one lock member arm reaches within the active range of an offset portion of a second draw arm and tilts the correcting element, whereby a cam surface of a draw hook is supported on an arm of the correcting element.

Abstract: The present invention relates to dobbies of the type in which each double swinging lever is controlled by two pulling hooks cooperating with pulling knives with reciprocal movement. Each non-selected pulling hook in each pair is raised away from the associated pulling knife by a stirrup coupled to a vertical rod having a gripper at its upper end, the gripper being selectively coupled to a raising knife under the control of the reading mechanism. The raising knife is raised or lowered by a vertical slide mechanism which is coupled directly by a connecting rod to a lowering knife of the dobbie, so that the slide mechanism and raising knife move up and down synchronously therewith. The invention finds particular application in the textile industry.

Abstract: A dobby for the formation of the shed on weaving looms, of the type in which each of the double swinging levers coupled to the heddle frames of the loom is displaced alternately by two pivoted pulling hooks which are controlled on the one hand downwardly by transverse lowering knives adapted to bring them in contact with pulling knives, on the other hand upwardly by stirrups under the control of the pattern mechanism and associated with lifting means which enable said hooks to displace the said pulling knives, wherein the lifting means are constituted by crosspieces directly fixed to the transverse lowering knives while the stirrups are shaped to cooperate with the said crosspieces when they receive the action of rocking levers placed under the control of the pattern mechanism.

Abstract: A dobby for a weaving loom, of the type in which each dobby element associated with a heddle frame or group of heddle frames comprises an actuating lever actuated by a reciprocating movement, a double swinging lever pivoted thereon and of which the ends are provided with fastening hooks, this double swinging lever being actuated by two cross-pieces carried by oscillating supports and common to all the elements of the dobby, and two retaining hooks adapted to selectively cooperate with the fastening hooks, each of these retaining hooks comprising on the one hand a first or main portion pivoted on the frame and which bears the hooking nose, on the other hand, a second selection portion pivoted on the first, connected thereto by a spring and stop system, and receiving the action of the weave mechanism, the whole being such that this mechanism may achieve the selection of the double swinging lever in question by displacing the second portion of one of the retaining hooks before the corresponding fastening hook ha

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 dobby with a mechanical reading device for a control card having perforated and nonperforated portions therein according to a pattern. The reading needle of the reading device of the pattern card has yielding elements for the purpose of reducing the impact force of the reading needle onto the pattern card.

Abstract: A method for controlling the heddle movement in a shed-forming machine and apparatus for performing the method. Reading needles are moved into and out of engagement with a pattern card having perforated and nonperforated portions therein actively cooperating with the needles which are adapted to move toward and away therefrom. Power amplifying structure is provided for converting the control operations noted by the reading needles into mechanical movements effecting selected control of the heddles dependent upon the position of the reading needle relative to the pattern card. A lock member is movably supported on a bar and its movement is controlled by whether the reading needle is received into a perforated portion of the pattern card or whether it engages a nonperforated portion of the pattern card. A shifting of the locking member will result in a selected and simultaneous control of a correcting element to either lift a draw hook or lower same into and out of engagement with a draw knife.

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: The present invention relates to apparatus for controlling the actuating mechanism of a loom dobby and may be most effectively used in looms wherein the heald shafts are raised and lowered by means of continuously-rotating dobbies. This apparatus includes a unit for unit comparing the actual position of the heald shaft with a preset one, whose one input is connected to a program carrier and fed with information on the preset position of the heald shaft, whereas the other input is connected to the output of the actuating mechanism, thereby establishing a feedback coupling, and is fed with information on the actual position of the heald shaft, the output of the comparison unit being connected via a time-delay element to the second input of a logical element whose output is directly connected to the actuating mechanism. This provides for automatic control and matching of the actual and preset positions of the heald shaft.

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: A Jacquard card is placed in information-transfer relationship with an optical reader. Weave information, including an identification number and number of picks, is placed in a computer. The weave pattern is read row by row and pick by pick and stored on magnetic tape. To retrieve the weave pattern, the magnetic tape is searched and the information is output on paper tape. The paper tape is then used to produce a Jacquard card.

Abstract: In a chain disc-type compound dobby machine, flexible instruction receiving members are integrally fixed to supporting hooks for decreasing the weight and the moment of inertia of the moving parts so that the connecting and detaching action of the hooks may be securely and easily performed. Moreover the number of parts is reduced and the structure becomes simple while at the same time effecting a stable high speed operation of the dobby machine.