US3529635A - Method and apparatus for actuating displaceable elements of a machine utilizing the jacquard principle of operation such as the lifting wires of jacquard machines or the punching needles of jacquard card cutters - Google Patents

Method and apparatus for actuating displaceable elements of a machine utilizing the jacquard principle of operation such as the lifting wires of jacquard machines or the punching needles of jacquard card cutters Download PDF

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US3529635A
US3529635A US721451A US3529635DA US3529635A US 3529635 A US3529635 A US 3529635A US 721451 A US721451 A US 721451A US 3529635D A US3529635D A US 3529635DA US 3529635 A US3529635 A US 3529635A
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needles
jacquard
needle
lifting
lifting wires
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US721451A
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English (en)
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Heinz Horak
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Apparatefabrik AG
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Apparatefabrik AG
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards

Definitions

  • the invention relates to a method, and to apparatus for carrying out the method, for actuating lifting wires (frequently simply called lifters) of a Jacquard machine or the displacea'ble elements of a machine utilizing the Jacquard principle of operation such as the punching needles of a Jacquard card cutter.
  • the prior art discloses magnetically-actuated lifting wires for Jacquard machines for weaving fancy cloth.
  • the electromagnets must actuate intermediate needles or other catching parts that act as armatures, thereby requiring a not inconsiderable amount of magnetic force to release these parts.
  • a corresponding large amount of power is furnished the magnets, and the magnets are consequently quite large, so that only a small number of them can be located on a given surface.
  • too much power should not be fed the magnets, lest the windings thereof be excessively heated. This undesired heating can be held to tolerable limits by artificial cooling, but such a solution is expensive.
  • the invention relates to a method and apparatus for actuating the displaceable elements of a machine utilizing the Jacquard principle of operation such as the lifting wires of Jacquard machines or the punching needles of Jacquard card cutters, the invention enabling a reduction in the number of moving parts, the electrical power expended in the electromagnets, and in minimizing the amout of heat generated in connection with energization of these magnets.
  • An object of the invention is a method for shifting the needles for the displaceable lifting wires or displaceable punching needles at least to within the region of attraction of at least one pole of their respective magnets, and subsequently moving the selected needles against the lifting wires or punching needles as the case may be.
  • a further object of the invention is an apparatus for effecting the method of the previous object, including actuating means for shifting the needles at least to within the region of attraction of at least one pole of their respective magnets, and subsequently moving the selected needles against the lifting wires or punching needles.
  • FIG. 1 is a side view of a part of a Jacquard machine, showing the actuating arrangement of the invention
  • FIG. 2 is a top view of the arrangement shown in FIG. 1;
  • FIG. 3 is a side view of one arrangement for moving the actuator
  • FIGS. 4 and 5 are respective side views of a second and third embodiment of the actuator
  • FIG. 6 is a side view of a preferred embodiment of the needle for pushing the lifting wires.
  • FIG. 7 is a schematic view diagrammatically illustrating the manner of actuating the electromagnets.
  • the lifting wires 2 are U- shaped and incorporate two legs 3 and 4. When not in operation the lifting wires rest on a bottom board 5 in the vicinity of a respective hole 6, through which the neck twine 1 is led. Slits 7 and 9 in respective lower and upper guide plates 8 and 10 hold the lifting wires 2 in a vertical position and free to slide up and down. The upper end of the leg 4 is bent outwardly to form a hook 11.
  • the lifting wires are made from a suitable, springy material, and the legs 3- and 4 are under tension to spread apart. The legs, consequently, bear on respective ends of a slit 7 or 9.
  • the books 11 of successive lifting wires 2 form a row, parallel to which is located a lifting blade 12 that is periodically moved up and down.
  • the lifting blade is so spaced from the leg 4 of the lifting wire 2 that, when raised, it catches the hook 11 to lift the wire 2 off the bottom board 5. This movement is then transferred by the neck twine 1 to the harness and the warp threads (not shown).
  • the needles 13 are horizontally movable in holes 14 incorporated in vertical guide plates 15 located in front of the lifting wires.
  • the left ends 16 (as seen in FIG. 1) of the needles 13 rest on an acutator 17.
  • Mounted on the actuator 17 is a gauge grid 18 incorporating vertical slits 19 which prevent lateral movement of the needles 13.
  • the needles near their right ends are bent upon themselves to provide a lateral shoulder 20 that bears on a respective leg 4.
  • each needle 13 Located above each needle 13 is an electromagnet 21 comprising a U-shaped core 22 and an energizing winding 23 surrounding one leg of the core. That core-leg not having the winding 23 passes through a hole 24 in a mount 25 made of non-magnetic material.
  • the lower end 26 of the mount is elongated and incorporates a hole 27 into which passes the end of the core-leg that carries the winding 23.
  • the undersurface of the mount 25 is covered with a thin sheet 28 of synthetic plastic, which prevents sticking of the respective needle 13 that acts as an armature.
  • the number of connecting leads can be reduced by winding the bared ends of the inner ends of the Winding 23 directly on the bare cores 22, thereby connecting these ends to the electrical ground of the mount 25.
  • the electrical circuit is closed by connecting the outer winding ends to the corresponding control units.
  • the electromagnets are advantageously manufactured by winding the coil 23 on the core 22 while the latter is still straight, and afterwards bending the core into a U.
  • the actuator 17 embodies a needlesupport surface 29 which extends parallel to a row of needles 13, and a needle-pushing surface 30 perpendicular to the surface 29. The actuator 17 is first raised towards the electromagnet 21, then again lowered, subsequently moved towards the lifting wires 2, and finally returned to its original position.
  • FIG. 3 shows schematically how the actuator 117 is made to undergo these movements.
  • the actuator is connected to a parallelogram, comprised of links 150, 151, 152 and 153, and having a pivot point 154 that is fixed to the frame 155 of the Jacquard machine.
  • Rollers 156 and 157 are rotatably mounted on respective ones of the parallelograms two non-fixed points of rotation that are located diagonally opposite one another.
  • Below the roller 156 is located a cam shaft 158, of which the cam 159 raises the actuator 117 against the force of gravity to its uppermost position.
  • a second cam shaft 160, with a cam 161, is positioned just left of the roller 157. In the position shown in FIG. 3, the cam 161 has shifted the actuator 117 to its extreme right-hand position.
  • the two cams 159 and 161 rotate clockwise at the same r.p.m., as a result of which the actuator 117 is successfully raised, lowered, moved right, and moved left.
  • the return movement of lowering is caused by the weight of the actuator, and that of moving left by the spring force of the lifting wires 2. Since the stroke of the movements caused by the cams 159 and 161 is short, the vertical and horizontal movements are approximately rectilinear.
  • the needles 113 lying on the actuator support-surface 129 are raised by the first movement of the actuator towards the magnets 121.
  • the height of the cam 159 is sufiicient to cause the needles 113 just to contact the two poles (or at least one) of the electromagnet.
  • the needle 113 is held in the position shown in dot-dash line, while the actuator 117 is lowered, and subsequently horizontally moved rightwards by the cams 161.
  • the needle-pushing surface 130 is less than half as high as the length of the actuators vertical movement, whereby the needle 113, held to the poles of the magnet, is not caught by the surface 130, so that the latter executes a horizontal forward and backward movement, without shifting the needle.
  • the electromagnet is not energized at the time that the needle is brought into contact with its poles, the needle is lowered back to its starting position, and subsequently advanced by the surface 130 to bear against the lifting wires 2.
  • FIGS. 1 and 2 Two spaced rows of lifting wires 2 and 2 are illustrated in FIGS. 1 and 2.
  • the needles 13 for the lifting wires 2 and the needles 13 for the wires 2' are each located in a horizontally extending row. Both actuators 17 and 17 are shown advanced to the right.
  • FIGS. 1 and 2 it is assumed in FIGS. 1 and 2 that all electromagnets 21 are energized, so that after the preceding movement of the actuator 17 all of the needles 13 are located in the position shown in full line. Since these needles were not caught by the needle-pushing surface 30, they were not shifted against the lifting wires 2. The hooks 11 are consequently caught when the lifting blade 12 rises and are raised by the latter.
  • the magnets 21' were not energized during the upward movement of the actuator 17'; therefore, the needles 13' followed, under their own weight, the downward movement of the actuator.
  • the surface 30 subsequently pushes the needles 13' rightwards against the lifting wires 2', moving the hooks 11' out of the path of the lifting blade 12'.
  • the sequence of movements of the actuators 17 and 17' and the movements of the lifting blade 12 and 12' are so synchronized that the blades are always moved upwards after the actuators have moved to their extreme right-hand position.
  • the blades rise they take along all those lifting wires that are not displaced by being deflected or bent by a needle 13 or 13'.
  • the blades 12 and 12' are slightly tilted, so that during their down-ward movement they can slide unhindered over the hook ends of the unraised lifting wires, briefly bending the legs 4 and 4' of these wires to the right.
  • the force fo the electromagnets is only sufl'icient to hold the needles attracted to the magnet poles.
  • the force is not so great as to attract the needles from their lowered position.
  • the actuators raise the needles into contact with at least one magnet pole; the magnets, therefore, can be made very small and energized with very little power.
  • An important advantage of the invention is that the work performed by the electromagnets is reduced.
  • the magnets when energized, simply hold the needles that have been raised into contact with at least one of their poles.
  • the magnets perform no or very little, mechanical work, and hold the needles for only a relatively brief period of timeuntil the actuator is advanced to the right and the surface 30 is located beneath the end 16 of the attracted needle.
  • much less electrical power is consumed, thereby assisting in reducing the amount of heat generated to tolerable proportions.
  • a further advantage of the invention lies in the elimination of intermediate needles or other catching parts tha are required in the prior art to transfer the effect of the electromagnets to the needles that bend the lifting wires. Aside from the fact that the elimination of so many parts facilitates inspection of the machine, improves reliability, and reduces manufacturing costs, the reduction in the number of parts is itself of very considerable advantage in a machine having as many parts as a Jacquard machine necessarily does.
  • the weight of the moved parts is reucked, enabling operation at higher speeds.
  • a needle 213 for bending the lifting wires (not shown) is shown in full line in its starting position and rests on a gauge grid 218.
  • An actuator 217 in the form of a lever is composed of a short pushing arm 230 and an arm 229, the right end of which is up wardly curved towards the needle 213.
  • the actuator is pivoted back and forth by any suitable means, not shown, through a pre-determined angle of approximately 30 about an axle 231.
  • the needle 213 is raised towards the electromagnet 221. If the magnet is energized, the needle is held against the magnet and is not advanced by the pushing arm 230 against the lifting wires, when the actuator is subsequently pivoted clockwise.
  • a needle 213 5. held to the magnet poles is shown in dot-dash line. But if the magnet is not energized, the needle is free to return to its starting position, whereupon it is engaged by the pushing arm 230 and shifted against a lifting wire.
  • the pivoting of the actuator is suitably synchronized with the movements of the lifting knife (not shown).
  • FIG. 5 A third embodiment of the actuator is illustrated in FIG. 5, wherein an actuator 317 is comprised of a cam shaft 331, rotated clockwise, mounting a dual-purpose cam incorporating a lifting cam part 329 and a pushing cam part 330.
  • the needle end 316 is located approximately perpendicularly above the shaft 331, and, at the start of each sequence of movements, rests lightly on the circular portion of the cam surface. Turning the cam shaft clockwise causes the slowly rising cam surface of the lifting cam part 329 to raise the needle towards the magnet poles.
  • the needle If the electromagnet is energized, the needle is held in the dot-dash position, attracted against the poles, even though the steeply falling cam surface of the lifting cam part 329 revolves past below the needle.
  • the pushing cam part 330 incorporating an at least approximately radial face, cannot act on the needle as it rotates by underneath the end 316, because at its maximum extent it is spaced less far from the shaft 331 than the lifting cam part. If the magnet is not energized, the needle falls back to its original position, as shown in FIG. 5, and is subsequently caught by the radial face of the pushing cam part 330 and shifted against the lifting wires.
  • the gauge grid 318 supports the needle 313 vertically, the radial face, after the cam has rotated through a certain angle, can no longer engage the left end of the needle, and the latter can be returned to its starting position by the spring action of the lifting wire.
  • the r.p.m. of the cam shaft 331 is so synchronized with the movements of the lifting knife (not shown) that the latter is raised, upon the unraised needles having been advanced to their extreme right-hand position.
  • the actuator 317 can comprise two separate cam shafts, respectively mounting a lifting cam that incorporates a slowly rising and a steeply falling cam surface and exercises the same function as the lifting cam 329, and a pushing cam that incorporates an at least approximately radial face and exercises the same function as the pushing cam 330.
  • the cam surface of the pushing cam is spaced less far, at its maximum extent, from its shaft than that of the lifting cam.
  • the two can be mounted on a common shaft.
  • the electromagnets are energized in any suitable, known manner.
  • the method of the invention, and the novel apparatus for practicing the method, as herein described, relate only to the selecting mechanism for raising the desired lifting wires.
  • the method and apparatus are also eminently suited to operate punching needles of Jacquard card cutters.
  • the manner in which the punching needles are selected and actuated is exactly the same as that described above in connection with lifting wires.
  • the circuit for each electromagnet includes a source of current 42, a lead to a switch 41 which is momentarily closed after the actuator such as 17 has lifted the needles to within the region of attraction of at least one pole of an electromagnet located opposite each needle.
  • Another lead 40 is connected to one end of the winding 43 for each electromagnet.
  • the other end of the winding 23 is connected via a lead 43 to one of the key contacts 44 which have tips engaging the perforated paper strip 45 trained over metal roller 46.
  • the roller 46 is via a wiper contact 47 connected to a ground on the machine frame. If the tip of a key contact enters a hole 48 in the paper strip, the circuit for its associated electromagnet is closed so long as contact 41 is in closed condition.
  • the holes 48 are arranged in the paper strip according to the pattern to be woven so that the corresponding electromagnets are energized for selecting the appertinent push needles.
  • the needles of the previously described embodiments need not be raised so as to touch at least one pole of their respective magnets, but instead raised sufiiciently to be brought within the region of attraction of at least one pole, whereby the needles are magnetically drawn against the poles of the energized magnets.
  • each needle near its magnet is ferromagnetic.
  • a needle 413 of this kind is shown in FIG. 6, the needle itself being composed of a non-magnetic material.
  • a ferromagnetic sleeve 432 is pushed onto the needle near its end 416. The sleeve cooperates with the electromagnet in the manner of an armature. Any stray field that might be 7 produced cannot act on the remaining part of the needle.
  • a method for actuating the lifting wires of a Jacquard machine wherein the position of each lifting wire is so controlled by a respective magnetically-attractable needle which, when moved against the lifting wires, moves the hook of its respective lifting wire out of the path of the lifting knife, and wherein the improvement comprises the following steps: initially shifting from a starting position and in a given direction each needle of a row of needles at least to Within the region of attraction of at least one pole of an individual electromagnet of a row of selectively energizable electromagnets located opposite each needle, energizing selected ones of said electromagnets so that all needles of the energized electromagnets are held to their electromagnets, returning all those needles of the unenergized electromagnets to their starting position to separate the needles into a first group of needles held to their associated electromagnets and a second group of needles again located in their starting position, moving the needles of one of said first and second groups transversely to said given direction and against the
  • each needle is sufficiently shifted so as to touch at least one pole of its respective electromagnet.
  • Apparatus for actuating the lifting wires of a lacquard machine comprising a plurality of displaceable lifting wires each having a hook thereon, said lifting wires being arranged in rows, a vertically reciprocable lifting knife means for cooperation with the hooks of the lifting wires in one position thereof, to lift such lifting wires, an individually magnetically attracta-ble shiftable needle for selectively displacing each lifting wire to position its associated hook out of the path of movement of the lifting knife means, an individual electromagnet for each needle, means for energizing selected electromagnets, movable actuating means located parallel to the ends of the needles of a row of needles that are remote from said lifting wires, means controlling said actuating means for movement to shift each needle of a row from a starting position to a position at least within the region of attraction of at least one pole of its assciated electromagnet so as to divide the needles into two groups comprising a first group of needles which are held by their associated energized electromagnets and
  • said actuating means includes a support surface approximately at right angles to the direction in which the needles are shifted towards their electromagnets, for shifting the needles towards their electromagnets, and a pushing surface, located in front of the end of the needles remote from the lifting wires, that is approximately perpendicular to said support surface, for moving the selected needles against the lifting wires, the projection of said pushing surface beyond said support surface being less than onehalf of the stroke that shifts the needles towards their electromagnets.
  • said actuating means includes a plurality of arms pivotal about an axis located below the ends of the needles remote from the lifting wires.
  • actuating means includes a lever incorporating said plurality of arms and mounted for reciprocation through a predetermined arc about said axis.
  • said actuating means includes a shaft to be driven in rotation and located underneath a row of needles, a dual-purpose cam mounted on said shaft for the needles of a row and contacting with its cam surface the longitudinal surface of the needles at the end thereof remote from the lifting wires, said dual-purpose cam including a first cam means for shifting the needles towards their electromagnets and a second cam means for moving the needles against the lifting wires, said second cam means incorporating a radial pushing face, and the cam surface of said first cam means being spaced farther from said shaft than said radial pushing face of said second cam means.
  • said actuating means includes a first shaft and a shifting cam mounted thereon and incorporating a slowly rising and steeply falling cam surface for contacting the longitudinal surface of a row of needles to move the needles towards their electromagnets, and further including a second shaft and a pushing cam mounted thereon and incorporating an approximately radial pushing face for pushing on the ends of the selected needles to move the latter against the lifting wires, and the cam surface of said shifting cam being spaced farther from said first shaft than the spacing of said pushing cam is from said second shaft whereby those needles attracted to their electromagnets lie outside of the path of said pushing cam, said first and second shafts extending parallel to a straight line defined by the needle ends when the needles of a row are in their starting positions, and said shafts being spaced from the needles, on the side thereof remote from the electromagnets, by a distance at least equal to the respective shaft radii.
  • the apparatus as defined in claim 6, including a shifting cam incorporating a slowly rising and steeply falling cam surface for contacting the longitudinal surface of a row of needles to move the needles towards their electromagnets, and a pushing cam incorporating an approximately radial pushing face for pushing on the ends of the selected needles to move the latter against the lifting wires, and a common shaft for said two cams, and wherein the cam surface of said shifting cam at its maximum extent is spaced farther from said shaft than said pushing face of said pushing cam, and said shaft extending parallel to a straight line defined by the needle ends when the needles of a row are in their starting position and said shaft being spaced from the needles, on the side thereof remote from the electromagnets, by a distance at least equal to its radius.
  • each needle of a row to a position at least within the region of attraction of at least one pole of an individual electromagnet of a row of electromagnets located opposite each needle, selectively energizing certain electromagnets of said row so that all needles associated with an energized electromagnet are held thereagainst, returning all needles associated with unnenergized electromagnets to said starting position to thus separate the needle into a first group of needles held by their associated energized electromagnets and a second group of needles again located at said starting position, moving the needles of one of said first and second groups transversely of said given direction and against their associated displaceable elements to displace the same
  • Apparatus for actuating the displaceable elements of a machine utilizing the Jacquard principle of operation comprising a plurality of displaceable elements arranged in rows and displaceable between two positions, an individually magnetically attractable and shiftable needle operably positioned relative to each displaceable element for selectively displacing the same from one position to another, an individual electromagnet for each needle, means for energizing selected electromagnets, movable actuating means located parallel to the ends of the needles of a row of needles that are remote from said displaceable elements, means controlling said actuating means for movement to shift each needle of a row in one direction, from a starting position to a position at least within the region of attraction of at least one pole of its associated electromagnet so as to divide the needles of a row into two groups comprising a first group of needles which are held by their associated energized electromagnets and a second group of needles not magnetically held, said means further controlling said actuating means for movement to shift the needle

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Looms (AREA)
US721451A 1967-04-21 1968-04-15 Method and apparatus for actuating displaceable elements of a machine utilizing the jacquard principle of operation such as the lifting wires of jacquard machines or the punching needles of jacquard card cutters Expired - Lifetime US3529635A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH569067A CH473251A (de) 1967-04-21 1967-04-21 Verfahren zum Betätigen von Platinen einer Jaquardmaschine oder von Stanznadeln einer Jaquardkartenschlagmaschine

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US3529635A true US3529635A (en) 1970-09-22

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US (1) US3529635A (xx)
AT (1) AT288988B (xx)
CH (1) CH473251A (xx)
DE (1) DE1760159B2 (xx)
FR (1) FR1560872A (xx)
GB (1) GB1215045A (xx)
NL (1) NL6805068A (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669154A (en) * 1970-02-19 1972-06-13 Huttwil Ag Apparatefab Open shed double lift-jacquard machine
US3777339A (en) * 1971-06-17 1973-12-11 Titan Textile Machines As Apparatus for individually separating heddles and like objects from a row preparatory to a drawing-in operation
US3918500A (en) * 1974-03-18 1975-11-11 Kayaba Industry Co Ltd Harness cord selecting and driving device for jacquard machines
US4593723A (en) * 1983-03-11 1986-06-10 Bonas Machine Company Limited Heald control apparatus
US4667704A (en) * 1984-12-21 1987-05-26 Bonas Machine Company Limited Heald rod retention device
US7117898B1 (en) * 1998-12-03 2006-10-10 Michel Van De Wiele Nv Carpet And Velvet Machinery Guide rods for a Jacquard loom
CN100436676C (zh) * 2003-08-08 2008-11-26 郑小军 电子纹板
US20220195641A1 (en) * 2020-12-21 2022-06-23 Staubli Lyon Shedding mechanism and jacquard-type weaving loom equipped with such a mechanism

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH550729A (de) * 1972-01-25 1974-06-28 Mueller Jakob Vorrichtung zum bewegen von fadenfuehrungseinrichtungen von textilmaschinen.
EP0082907A1 (de) * 1981-12-28 1983-07-06 GebràœDer Sulzer Aktiengesellschaft Kupplungsanordnung zum Steuern der Schäfte einer Webmaschine
FR2562100B1 (fr) * 1984-03-30 1986-08-08 Ecole Nale Sup Arts Ind Textil Dispositif electromecanique permettant la commande numerique directe d'une mecanique jacquard
FR2646958A1 (fr) * 1989-05-10 1990-11-16 Arcom Systeme de selection mecanique par action electro magnetique d'un systeme autonettoyant permettant une action par poussee ou traction
GB2312440A (en) * 1996-04-26 1997-10-29 Scapa Group Plc Jacquard mechanism
GB9626432D0 (en) * 1996-12-19 1997-02-05 Northern Electronic Technology Diagnostic system for a jacquard machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2282223A (en) * 1940-05-28 1942-05-05 Hamilton Wallace Loom
CH253240A (de) * 1946-10-25 1948-02-29 Ag Arcont Musterungseinrichtung an Schaftmaschinen.
FR934290A (fr) * 1946-09-20 1948-05-18 Procédé de tissage, produit en résultant et appareil pour sa mise en oeuvre
US2976891A (en) * 1957-08-22 1961-03-28 Staubli Geb & Co Dobbies

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2282223A (en) * 1940-05-28 1942-05-05 Hamilton Wallace Loom
FR934290A (fr) * 1946-09-20 1948-05-18 Procédé de tissage, produit en résultant et appareil pour sa mise en oeuvre
CH253240A (de) * 1946-10-25 1948-02-29 Ag Arcont Musterungseinrichtung an Schaftmaschinen.
US2976891A (en) * 1957-08-22 1961-03-28 Staubli Geb & Co Dobbies

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669154A (en) * 1970-02-19 1972-06-13 Huttwil Ag Apparatefab Open shed double lift-jacquard machine
US3777339A (en) * 1971-06-17 1973-12-11 Titan Textile Machines As Apparatus for individually separating heddles and like objects from a row preparatory to a drawing-in operation
US3918500A (en) * 1974-03-18 1975-11-11 Kayaba Industry Co Ltd Harness cord selecting and driving device for jacquard machines
US4593723A (en) * 1983-03-11 1986-06-10 Bonas Machine Company Limited Heald control apparatus
US4667704A (en) * 1984-12-21 1987-05-26 Bonas Machine Company Limited Heald rod retention device
US7117898B1 (en) * 1998-12-03 2006-10-10 Michel Van De Wiele Nv Carpet And Velvet Machinery Guide rods for a Jacquard loom
CN100436676C (zh) * 2003-08-08 2008-11-26 郑小军 电子纹板
US20220195641A1 (en) * 2020-12-21 2022-06-23 Staubli Lyon Shedding mechanism and jacquard-type weaving loom equipped with such a mechanism
US11702771B2 (en) * 2020-12-21 2023-07-18 Staubli Lyon Shedding mechanism and jacquard-type weaving loom equipped with such a mechanism

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CH473251A (de) 1969-05-31
DE1760159B2 (de) 1972-12-07
NL6805068A (xx) 1968-10-22
DE1760159A1 (de) 1971-12-23
GB1215045A (en) 1970-12-09
AT288988B (de) 1971-03-25
FR1560872A (xx) 1969-03-21

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