US3439715A - Weft mixer for looms - Google Patents
Weft mixer for looms Download PDFInfo
- Publication number
- US3439715A US3439715A US635731A US3439715DA US3439715A US 3439715 A US3439715 A US 3439715A US 635731 A US635731 A US 635731A US 3439715D A US3439715D A US 3439715DA US 3439715 A US3439715 A US 3439715A
- Authority
- US
- United States
- Prior art keywords
- weft
- batten
- weft thread
- selector
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D45/00—Looms with automatic weft replenishment
- D03D45/20—Changing bobbins, cops, or other shuttle stock
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
Definitions
- a weft thread guide member is carried by the batten and is formed so as to engage and carry a Weft thread placed in the path of rearward travel of the guide member, said weft thread cutting and holding device cooperating with the guide member to maintain the supply end of the cut thread across the path of the weft picking means.
- a plurality of separate weft threads are furnished by a Weft supply means and a plurality of fingers of a weft selector mechanism guide an associated particular one of the separate weft threads.
- Any selected finger is moved by a pattern controlled means to an operative position in which the finger places its associated weft thread in the path of travel of the guide member as the batten approaches the end of its forward stroke, and the selected finger is moved back to its inoperative position as 'soon as its associated weft thread is taken up and carried by the guide member.
- a batten controlled means is operative to raise the weft thread carried by the guide member above the tip thereof before a next selected finger of the selector mechanism reaches its operative position in order to permit the raised weft thread to pass over and out of the path of forward travel of the guide member.
- the invention relates to Weft selector mechanisms for shuttleless looms of the type comprising weft picking means, and a reciprocable batten carrying a weft thread guide member and a weft thread cutting and holding device operative to cut a weft thread carried by the guide member and to maintain the supply end of the cut thread across the path of the weft picking means.
- a selector mechanism having a plurality of movable selector members each carrying a particular one of different weft threads and operative upon the rearward stroke of the batten to present the selected Weft thread in such a manner to the guide member mounted on the batten that the selected weft thread is intercepted by and transferred to the guide member during the rearward movement thereof and is subsequently intercepted by and transferred back to the related selector member during the forward movement of the guide member, such double transfer of the selected weft thread being objectionable in that the substitution of a selected weft thread for the previously selected weft thread must be carried out within the short time interval during which the batten approaches the end of its forward stroke and begins its next rearward stroke.
- the weft mixer according to the invention comprises:
- a number of perforate selector fingers through each of which a weft 'yarn extends and which a preselector device driven in synchronism with the loom batten can bring the yarn to either an inoperative or an operative position;
- a moving hook so secured to the batten on the opposite side of the cutting and holding device relative to the picking means that a weft yarn portion stretched between the hook and the holding device can be engaged up by the picking means on its way to enter the shed, the position and path of each selector finger being such that any finger, when changing from its inoperative to its operative position, engages the yarn on the moving hook;
- a stationary hook which is disposed near the selvedge and via which all the unselected Weft yarns passi.e., the Weft yarns which are still connected to the selvedge and to the supply reels via the respective selector fingers which are in the inoperative position;
- the preselector device being so devised that a selector finger moves into the operative position before the picking means enters the shed, preferably during the picking cycle of the immediately previous weft yarn, and returns to the inoperative position before the clearing finger operates.
- the weft yarn is rendered taut when offered by the selector finger as the same moves into its operative position, with the advantage that the first turn of yarn from the reel of a weft supply or bobbin is unwound to start the yarn balloon before severance of the yarn, so that the peak force required for initial unwinding does not act on a yarn which has already been severed and gripped.
- the weft yarns are never abandoned but remain in the loop of the corresponding selector fingers.
- a fresh weft yarn can be offered While the immediately previous weft yarn is still being picked, so that relatively slow and reliable movements are possible.
- the weft yarn is released from the moving hook of the batten and thus automatically places itself in relaxed state in its inoperative position. Since selection can be effected at any time after a previously selected weft thread is inserted in the shed, the moment at which selection is effected during the cycle is immaterial, so that movements can be slow and can be performed conveniently.
- the selector fingers are pivotably mounted on a common vertical spindle mounted on the loom frame.
- a transmission connected directly to the batten moves the selector fingers from their inoperative to their operative position.
- the transmission connecting the batten to the selector fingers comprises a carriage which is mounted for sliding movement on the loom frame in a direction parallel to the batten and which is connected thereto by a single inclined rod and which has tappets disposed at the respective levels of the selector fingers, each tappet being adapted to assume an operative position, in which the tappets engage the corresponding selector finger and an inoperative position in which they have no effect 'on the fingers, the tappets being adapted to be selectively brought into the operative position by an abutment mounted on the loom frame so as to be able to selectively assume various positions corresponding to the levels of the various tappets under the control of the preselector system.
- the preselector system for actuating the moving abutment comprises a rod bearing resiliently on an appropriate point of a surface of a disc, on the other surface of which are the ends of three other sliding preselector rods each adapted to be moved, by a transmission connected to the loom dobby, into an advanced or a retracted position.
- FIGURE 1 is a side view showing the outline of the loom and the position at which the weft yarn mixer is disposed;
- FIGURE 2 is a view to an enlarged scale and in perspective 'of the complete weft yarn mixer system and that part of the loom at which the mixer is disposed;
- FIGURE 3 is a diagrammatic plan view of the main part of the weft yarn mixer
- FIGURE 4 is an elevation corresponding to FIGURE 3;
- FIGURE 5 is a diagram of the oscillating weft selector actuator disc
- FIGURES 6 and 7 each show one 'of the two positions of one of the transmissions via which the loom dobby actuates the oscillating disc;
- FIGURE 8 is a view to an enlarged scale on the section line VIII-VIII of FIGURE 1;
- FIGURES 9 and 10 each show one of two different positions of the weft clearer system, looking in the direction of the arrow IX in FIGURE 1, and
- FIGURES 11 to 14 are diagrammatic plan views showing four consecutive phases in the operation of the weft yarn mixer.
- a weft selector mechanism 1 in FIGURE 1 is secured to the top of frame 2 of a needle loom of which only the delivery needle 3 is shown in FIGURE 2.
- Selector mechanism 1 is driven by loom dobby 4 by transmissions to be described hereinafter.
- a lay beam or batten 5 bears a reed 6; needle 3 is reciprocated on batten 5 by an oscillating lever 7 whose top end is connected to the outer end of needle 3 by means of articulation 8.
- This loom is of the kind disclosed in applicants French Patent 1,290,867 'of Feb. 14, 1961.
- FIGURE 2 Also visible in FIGURE 2 are a breast beam 11, a cloth beam 12 for taking up cloth 13, and a batten-controlled weft thread cutting and holding device 14 which serves to cut and hold any weft thread presented thereto and which is shown in greater detail in FIGURE 8 and which is disposed on the batten 5'.
- the weft selector mechanism 1 comprises, in this particular example, six oscillating fingers 21A, 21B, 21C, 21D, 21B and 21F, the mechanism being devised for six different weft threads although of course any desired number can be used. All these fingers are identical and each of them, for instance, the finger 21A, takes the form of a bent lever 22A to which a steel wire loop 23A is articulated. All the levers as 22A are pivotally mounted on a vertical spindle 25 rigidly secured to a mounting plate 26 attached to the top of loom frame 2; near their free ends the loops as 23A are guided between horizontal arcuate slats or the like 28 whose centers are on the vertical spindle 25.
- the slats 28 are spaced apart by spacers 24 and form a system which is also attached to the mounting plate 26.
- Each loop, as 23A, of a selector finger is therefore disposed substantially in a horizontal plane with provision for slight vertical movement along the arcuate slats 28 which are preferably closer together in the part nearest the reed 6 than elsewhere.
- Weft threads 31A, 31B, 31C, 31D, 31E and 31F extend downwards through the respective loops, as 23A, of the six selector fingers.
- the weft threads come from lateral bobbins 32A, 32B, 32C, 32D, 32E, 32F (shown only in FIGURE 11) and enter two guide reeds 33, 34 (FIGURE 2) rigidly secured to loom frame 2.
- the other five weft threads extend over a hook 37 which is disposed near the selvedge of fabric 13 and which is rigidly secured to the mounting plate 26.
- the hook 37 is formed by the end of a rod 38 engaged in a clamp 39 provided on plate 26 and rigidly secured in clamp 39 by a screw 41.
- the six selector fingers, as 21A, are selectively actuated by six tappets 45A, 45B, 45C, 45D, 45E, 45F (see also FIGURES 3 and 4) pivotally mounted on a common vertical spindle 46 secured in a carriage 47 rigidly secured to a horizontal rod 48 sliding in a block 49 secured to the plate 26.
- Rod 48 reciprocates lengthwise in synchronism with the batten movements and is accordingly connected to batten 5 by a rod 52 having one end articulated to a spindle 53 of a clamp 54 secured to rod 48, the other end 'of rod 52 being articulated to a spindle 55 mounted in the end of a foot 56 rigidly secured to the batten 5.
- the carriage 47 and the clamp 54 respectively can have their position adjusted on the rod 48 and be immobilized thereon.
- the selector fingers, as 21A are returned resiliently to their inoperative positions, against a stationary abutment 62 (FIGURE 3) rigidly secured to the plate 26, by individual springs such as 63A, and 63F (see FIGURES 2 and 3) each having one end secured to one of the arms of the corresponding bent lever, as 22A, while the other end is secured to a vertical rod 64 secured to the plate 26.
- the six tappets, as 45A are identical and each urged resiliently, against a vertical stop rod 67 rigidly secured to carriage 47, by an individual spring strip, as 68A, secured in carriage 47 by a screw 69A (FIG. 3).
- each of the levers takes the form of a hook 72A
- the lever 22A is in its inoperative position abutting the abutment 62 and the carriage 47 moves in the direction indicated by an arrow f2 (FIGURE 3) and if the corresponding tappet 45A is abutting the abutment 67, the tappet 45A is not aligned with the hook 72A and therefore leaves the corresponding selector finger 21A in the inoperative position shown in solid lines in FIGURE 3.
- Each tappet, as 45A may be urged against the force of its return spring, as 68A, into alignment with the hook, as 72A, of the corresponding selector finger when such tappet advancs in the direction indicated by the arrow 2, due to the combined action of a cam surface, as 74A, rigidly secured to that surface of such tappet which is opposite the surface acted on by the corresponding return spring 68A, and of a movable abutment 75 which can be brought selectively into the path of travel of the cam surface of any of the tappets 45A to 45F in accordance with the particular pattern chosen.
- Abutment 75 is rigidly secured to an arm 76 (FIG- URES 2 to 4) pivotable around spindle 77 mounted in a support 78 secured to plate 26 and takes the form of the end of a piston 131 (FIGURE 3) slidable in a casing 132 secured to the end of arm 76; piston 131 is urged outwards by a spring 133 so that, in circumstances which will be seen hereinafter, abutment 75 can be retracted by passing over the cam surface, as 74A, of a tappet. Abutment 75 can be brought to the level of any of the six selector tappets 45A to 45F by the combined operation of a spring 81 and a sliding rod 82 serving as a moving abutment.
- Spring 81 and rod 82 act on two projections 83, 84 respectively rigidly secured to the arm 76.
- Spring 81 is disposed on a rod 87 horizontally slidable in support 78; as best known in FIG. 4, one end of spring 81 bears on a shoulder 88 of support 78 and the other end of spring 81 bears on a shoulder 89 of rod 87.
- Rod 82 is also slidable horizontally in support 78; one end of rod 82 is in contact with projection 84 and the other end of rod 82 bears on an oscillating disc or plate or the like formed with a central hole 93 which is engaged with some clearance a stationary horizontal rod 94 borne by block 49.
- a binary control system actuated by dobby 4 determines the position and inclination of disc 92 on rod 94.
- the three rods 101A, 10113, 1010 clearly indicated in FIGS. 3 and 4, are mounted in block 49 for sliding in directions parallel to the directions of the rod 82.
- Each such rod, e.g., rod 101A can selectively take up one or the other of two positinsan advanced position, in which an abutment 102A rigidly secured to the rod 101A is in contact with a face 103 of block 49; and a withdrawn position, in which another abutment 104A of the rod is in contact with the face 105 of block 49.
- the arrangement of the three sliding rods can be as shown in FIGURE 5, where the three rods are disposed one each at the three vertices A, B, C of an equilateral triangle, the place where the rod 82 bears on the disc 92 being disposed at a point P positioned three-sevenths of the distance from vertex A along a straight line AN joining ve'rtex A to a point N disposed one-third of the way from vertex B along the triangle base BC. Consequently, according as one or two or three of the three sliding rods 101A, 101B, 101C are in their advanced or withdrawn positions, the point P of the disc 92 can take up anyone of eight different equidistant positions along the geometric axis formed by the rod 82. In the example shown only six of these eight positions are used.
- Each of the three sliding rods e.g., 101A
- a moving element 111A (FIGURES 6' and 7) of dobby 4 by a flexible transmission 112A comprising a sheath 113A bearing at one end against block 49 and at its other end against a support 114 rigidly secured to loom frame 2, and a cable 115A which is received in the sheath 113A, one end of cable 115A being secured to the corresponding end of rod 101A and the other end of cable 115A being secured to a rod 116A which is slidable in support 114 and which has a small plate or the like 117A secured to its end.
- a member 121A is articulated by way of a spindle 118A to the end of dobby lever 111A; member 121A bears two rods 122A, 123A which are parallel to rod 116A and which are freely slidable through support 114 and plate 117A.
- Two compression springs 125A, 126A are interposed between the members 121A and 117A and two more compression springs 127A, 128A are interposed between plate 117A and the stationary support 114.
- the travel of the member 121A and of the two rods 122A, 123A driven by the dobby is greater than the possible travel of rod 101A for the actuation of the selector wobble disc, so that the springs are compressed at the ends of travel and rod 101A is certain to be in good contact with one or other of its two abutments and is therefore accurately located.
- a hook shaped weft guide member 136 is mounted on the batten adjacent the weft thread cutting and holding device 14 and has an upwardly and rearwardly curved front surface 137.
- the hook 136 is extended to the rear and bears a horizontal spindle 138 on which a finger 139 (see also FIGURES 9 and can pivot, finger 139 being resiliently biased by a spring 141 against an abutment 142 rigidly secured to hook 136 so that finger 139 is below the hook 136.
- the finger 139 is raised by a stationary abutment which has the general reference 144 and which is engaged by a blade or projection or the like 145 rigidly secured to finger 139.
- Abutment 144 is formed by a small plate 147 (FIGURES 9 and 10) and by a V-shaped spring strip 1 48 which has a substantially vertical rear surface and a front inclined surface 149 forming a cam adapted to raise the complete abutment system 144 on the top end of the projection as the batten 5 begins to move in the rearward direction.
- the front end of plate 147 is secured by a screw fastener 151 to the end of a rod 152 (see also FIGURE 2) secured to the stack of arcuate slats 28.
- Screw fastener 151 extends through a hole in the end of rod 152 and through a longitudinal slot in the plate 147, so that the position of abutment 144 can be accurately adjusted in the direction of batten movement.
- the weft thread cutting and holding device 14 is preferably of the same construction as that shown in my US. Patent No. 3,157,208, issued Dec. 17, 1964, and mainly comprises a movable cutter blade 155 (FIGURE 8) disposed between a stationary blade 156 and a holding blade 157.
- the movable cutter blade 155 is rigidly secured to a pivot pin 158 to which a camming finger 159 is secured.
- a camming abutment 161 secured to the breast beam 11 engages the finger 159 so as to cause blade 155 to move out of engagement with blades 156 and 157.
- the finger 159 Upon the next rear-ward stroke of batten 5, the finger 159 disengages from abutment 161 to permit blade 155 to pivot between blades 156 and 157 to thereby cut any weft thread engaged by blade 155 and clamp the supply end of the cut thread between the blades 155 and 157.
- Feed needle 3 has just engaged the weft thread 32A and is taking the same into the shed. The thread therefore slides through the reeds 33, 34 through the loop of the finger 21A, which has returned to its inoperative position between the slats 28, and on the hook 136.
- the batten Upon reaching its rearward position, the batten begins its forward movement (FIGS. 13 and 2).
- the drawing needle (not shown) has almost completed the pick, about e.g. 5 cm. of weft thread still remaining to be drawn, whereas the delivery needle 3 is returning and is also about 5 cm. in the shed.
- the weft thread is raised from hook 136 by finger 139 (FIGURES l0 and 2) which engages the stationary abutment 144.
- the freed weft thread takes up its standby position 32A above the other yarns.
- the pull exerted on the weft thread by the drawing needle completely takes up any slack occurring after the thread has been raised from hook 136 and passes from position 32A to position 32A.
- one of the selector fingers for instance, finger 21B
- finger 21B has been moved into the operative position, which produces a pull on the corresponding thread 31B thereby causing a length portion thereof to unwind from bobbin 32B
- Maximum tension is applied to the thread at a time when the same is still unsevered.
- the batten moves towards the end of its forward stroke and the read 6 beats up the weft thread (FIGURE 14).
- Selected finger 21B is in its operative position with its weft thread extended from arm 40 to its raised position.
- surface 137 cams the selected weft thread up and over the tip of hook 136 so that as the batten begins its next rearward movement the selected weft thread is engaged behind the hook 136.
- Such thread is therefore disposed against the extension 40 of hook 37 and the hook 136 and is ready to be gripped and severed by the device 14 as the batten begins to move rearwardly, whereafter the weft thread portion extending between the device 14 and the hook 136 is engaged by the delivery needle 3, as it is about to happen in FIGURE 11 which was the starting point to expain the cycle of operation with the weft thread 31A.
- the selector finger, for instance, 21A which has brought such thread to such position can start to return to its inoperative position and a next selected finger can move into the operative position while the picking of the previously selected weft thread starts, so that considerable time is available for this preselection.
- the weft thread is cleared off the hook 136 so that it finishes by being positioned in the shed without tension, thus obviating breakages at a time when the shed starts to become fairly closed, with a consequent increase in the friction on the moving weft thread.
- the selection movements are very slow and are performed during the pick preceding the picking of the selected weft yarn, so that there is no need for the selector fingers to move at any particular time during the cycle, thus greatly facilitating setting up, adjustment and satisfactory operating conditions for the whole system.
- Abutment 75 is then at an appropriate height for the corresponding tappet, as 45A, or any other tappet of the group of six tappets, to be urged slightly by the abutments 75 when it advances, simultaneously with the batten, and for its end to engage in the hook, as 72A, of the selector finger of the corresponding weft yarn.
- the preselector device shown comprising three sliding rods, could provide selection for eight weft yarns since the wobble plate 92 can take up eight different positions depending upon the possible combinations of the positions of the three sliding rods; however, the embodiment described uses only six of these positions for mixing six weft yarns.
- any actuating and preselecting system other than those shown could be used for the selective operation of the selector fingers, as 21A.
- a shuttleless loom comprising a shed, a reciprocable batten, weft picking means for inserting a single Weft thread in the shed during rearward stroke of said batten, a weft thread cutting and holding device mounted on said batten to cut and hold a weft thread engaged by said device prior to operation of said weft picking means, and a weft thread guide member carried by said batten and formed so as to engage and carry a weft thread placed in the path of rearward travel of said guide member, said weft thread cutting and holding device cooperating with said guide member to maintain the supply end of the cut thread across the path of said weft picking means, weft supply means for furnishing a plurality of separate weft threads of different individual characteristics, a weft selector mechanism comprising a plurality of fingers each of which guides an associated particular one of said separate weft threads and each of which is movable between an operative position in which it places its associated weft thread in the path of travel of said guide member and an inoperative position
- a loom as claimed in claim 1 comprising a frame, said weft selector mechanism including a vertical spindle mounted on said frame, said fingers being pivotably mounted on said spindle.
- a loom as claimed in claim 1 comprising transmission means connected directly to the batten for changing the selector fingers from their inoperative to their operative position.
- a loom as claimed in claim 3 comprising a frame and wherein said transmission means comprises a carriage mounted for sliding movement on said frame in a direction parallel to the batten, a single inclined rod connecting said carriage and batten, tappets on said rod at the respective levels of the selector fingers, each tappet being adapted to assume an operative position, in which the tappet engages the corresponding selector finger as it passes by, and an inoperative position in which they have no effect on the fingers, and moving abutment means on said frame for acting on said tappets to selectively advance the same to the operative position, said abutment means being coupled to said pattern controlled means so as to be able to selectively assume various positions corresponding to the levels of the various tappets under the control of the pattern controlled means.
- said pattern controlled means for actuating the moving abutment means comprises a disc having opposite faces, a rod bearing resiliently on one face of said disc and three other sliding preselector rods each bearing on the other face of the disc and adapted to be moved into an advanced or a retracted position.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Materials For Photolithography (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR60509A FR1489089A (fr) | 1966-05-06 | 1966-05-06 | Dispositif mélangeur de trames pour métiers à tisser |
Publications (1)
Publication Number | Publication Date |
---|---|
US3439715A true US3439715A (en) | 1969-04-22 |
Family
ID=8607973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US635731A Expired - Lifetime US3439715A (en) | 1966-05-06 | 1967-05-03 | Weft mixer for looms |
Country Status (7)
Country | Link |
---|---|
US (1) | US3439715A (de) |
BE (1) | BE698024A (de) |
CH (1) | CH467367A (de) |
CS (1) | CS154227B2 (de) |
DE (1) | DE1710343C3 (de) |
FR (1) | FR1489089A (de) |
GB (1) | GB1166753A (de) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3596685A (en) * | 1968-07-06 | 1971-08-03 | Jose Bassa Bassart | Device for cutting and retaining the weft threads in shuttleless looms |
US3613741A (en) * | 1969-01-21 | 1971-10-19 | Boris Kroll Jacquard Looms Inc | Shuttleless loom |
USB404437I5 (de) * | 1973-10-09 | 1975-01-28 | ||
US3921678A (en) * | 1971-11-24 | 1975-11-25 | Lebocey Ind Soc | Device for selecting a weft thread in a shuttleless loom supplied by external spools |
US3941158A (en) * | 1973-12-17 | 1976-03-02 | Societe Alsacienne De Constructions Mecaniques De Mulhouse | Weft mixer devices for looms |
US4040452A (en) * | 1974-08-02 | 1977-08-09 | Nuovo Pignone S.P.A. | Device for holding cut weft threads to be folded up into the shed to form a tucked selvedge in a fabric made by a shuttleless loom having a continuous weft supply mechanism |
US4134436A (en) * | 1976-11-05 | 1979-01-16 | Saurer Diederichs, Societe Anonyme | Mechanical weft-thread selector for a shuttleless loom |
US4143683A (en) * | 1975-10-03 | 1979-03-13 | Societe Alsacienne De Constructions Mechaniques De Mulhouse | Device for controlling and cutting the weft threads in looms with weft inserters |
US4160468A (en) * | 1974-10-11 | 1979-07-10 | Incotex S.A. | Weft selector mechanism |
FR2541322A1 (fr) * | 1982-11-25 | 1984-08-24 | Dornier Gmbh Lindauer | Metier a tisser sans navette a insertion des fils de trame par des systemes de prehension avances dans la foule, puis retractes de cette derniere |
DE4446290A1 (de) * | 1993-12-23 | 1995-06-29 | Wiele Michel Van De Nv | Vorrichtung zur Einschlagfadenwahl an einer Webmaschine |
US20050284186A1 (en) * | 2004-06-25 | 2005-12-29 | Zorini Luigi O | Needle loom with automatic change of the weft thread |
CN1576423B (zh) * | 2003-07-10 | 2011-01-26 | 斯托布利有限公司 | 用于织机的换纬装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3315320A1 (de) * | 1983-04-27 | 1984-10-31 | Emil Jäger GmbH & Co KG, 4400 Münster | Vorrichtung zum eintragen von schussfaeden bei webmaschinen |
DE3812960A1 (de) * | 1987-10-06 | 1989-04-20 | Textilma Ag | Greiferwebmaschine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3111144A (en) * | 1960-04-26 | 1963-11-19 | Sulzer Ag | Method and apparatus for selectively presenting weft threads to weft thread inserting means in weaving machines |
FR1376747A (fr) * | 1963-09-20 | 1964-10-31 | Alsacienne Constr Meca | Dispositif mélangeur de trames sur métiers à tisser sans navette |
GB1002093A (en) * | 1964-01-10 | 1965-08-25 | Webstuhlbau Grossenhain Veb | Improvements in or relating to weft change motions for looms having gripper shuttles |
US3276482A (en) * | 1963-04-10 | 1966-10-04 | Jean Gusken Maschinenfabrik Ei | Web thread changing device for web-loom |
-
1966
- 1966-05-06 FR FR60509A patent/FR1489089A/fr not_active Expired
-
1967
- 1967-04-29 DE DE1710343A patent/DE1710343C3/de not_active Expired
- 1967-05-02 CH CH636067A patent/CH467367A/fr unknown
- 1967-05-03 US US635731A patent/US3439715A/en not_active Expired - Lifetime
- 1967-05-04 GB GB20780/67A patent/GB1166753A/en not_active Expired
- 1967-05-05 BE BE698024D patent/BE698024A/xx unknown
- 1967-05-05 CS CS328667A patent/CS154227B2/cs unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3111144A (en) * | 1960-04-26 | 1963-11-19 | Sulzer Ag | Method and apparatus for selectively presenting weft threads to weft thread inserting means in weaving machines |
US3276482A (en) * | 1963-04-10 | 1966-10-04 | Jean Gusken Maschinenfabrik Ei | Web thread changing device for web-loom |
FR1376747A (fr) * | 1963-09-20 | 1964-10-31 | Alsacienne Constr Meca | Dispositif mélangeur de trames sur métiers à tisser sans navette |
GB1002093A (en) * | 1964-01-10 | 1965-08-25 | Webstuhlbau Grossenhain Veb | Improvements in or relating to weft change motions for looms having gripper shuttles |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3596685A (en) * | 1968-07-06 | 1971-08-03 | Jose Bassa Bassart | Device for cutting and retaining the weft threads in shuttleless looms |
US3613741A (en) * | 1969-01-21 | 1971-10-19 | Boris Kroll Jacquard Looms Inc | Shuttleless loom |
US3921678A (en) * | 1971-11-24 | 1975-11-25 | Lebocey Ind Soc | Device for selecting a weft thread in a shuttleless loom supplied by external spools |
USB404437I5 (de) * | 1973-10-09 | 1975-01-28 | ||
US3915200A (en) * | 1973-10-09 | 1975-10-28 | Rockwell International Corp | Dobby actuating mechanism for multi-filling insertion |
US3941158A (en) * | 1973-12-17 | 1976-03-02 | Societe Alsacienne De Constructions Mecaniques De Mulhouse | Weft mixer devices for looms |
US4040452A (en) * | 1974-08-02 | 1977-08-09 | Nuovo Pignone S.P.A. | Device for holding cut weft threads to be folded up into the shed to form a tucked selvedge in a fabric made by a shuttleless loom having a continuous weft supply mechanism |
US4160468A (en) * | 1974-10-11 | 1979-07-10 | Incotex S.A. | Weft selector mechanism |
US4143683A (en) * | 1975-10-03 | 1979-03-13 | Societe Alsacienne De Constructions Mechaniques De Mulhouse | Device for controlling and cutting the weft threads in looms with weft inserters |
US4134436A (en) * | 1976-11-05 | 1979-01-16 | Saurer Diederichs, Societe Anonyme | Mechanical weft-thread selector for a shuttleless loom |
US4540028A (en) * | 1982-11-24 | 1985-09-10 | Lindauer Dornier Gesellschaft Mbh | Shuttleless weaving machine with gripper systems for the filling yarn insertion into and retraction from the shed |
FR2541322A1 (fr) * | 1982-11-25 | 1984-08-24 | Dornier Gmbh Lindauer | Metier a tisser sans navette a insertion des fils de trame par des systemes de prehension avances dans la foule, puis retractes de cette derniere |
DE4446290A1 (de) * | 1993-12-23 | 1995-06-29 | Wiele Michel Van De Nv | Vorrichtung zur Einschlagfadenwahl an einer Webmaschine |
FR2714396A1 (fr) * | 1993-12-23 | 1995-06-30 | Wiele Michel Van De Nv | Dispositif de sélection de trame sur un métier à tisser. |
BE1007905A3 (nl) * | 1993-12-23 | 1995-11-14 | Wiele Michel Van De Nv | Inrichting voor de inslagselektie op een weefmachine. |
US5694982A (en) * | 1993-12-23 | 1997-12-09 | N.V. Michel Van De Wiele | Weft thread selection device |
CN1576423B (zh) * | 2003-07-10 | 2011-01-26 | 斯托布利有限公司 | 用于织机的换纬装置 |
US20050284186A1 (en) * | 2004-06-25 | 2005-12-29 | Zorini Luigi O | Needle loom with automatic change of the weft thread |
US7073540B2 (en) * | 2004-06-25 | 2006-07-11 | Luigi Omodeo Zorini | Needle loom with automatic change of the weft thread |
Also Published As
Publication number | Publication date |
---|---|
GB1166753A (en) | 1969-10-08 |
CH467367A (fr) | 1969-01-15 |
BE698024A (de) | 1967-11-06 |
CS154227B2 (de) | 1974-03-29 |
DE1710343A1 (de) | 1970-07-16 |
DE1710343B2 (de) | 1973-06-14 |
FR1489089A (fr) | 1967-07-21 |
DE1710343C3 (de) | 1978-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3439715A (en) | Weft mixer for looms | |
US3638686A (en) | Carriers for filling insertion in a weaving machine | |
US3342220A (en) | Weft changing apparatus | |
US3530902A (en) | Weft cutter and control for weaving machine | |
US3111966A (en) | Method and apparatus for simultaneously weaving lengths of fabric | |
US4054159A (en) | Picking method for a shuttleless weaving machine | |
US2080784A (en) | Loom having stationary weft supplies | |
US4143683A (en) | Device for controlling and cutting the weft threads in looms with weft inserters | |
US3727647A (en) | Weft thread selecting and handling means for gripper shuttle loom | |
US3237651A (en) | Weft selectors for shuttleless looms | |
US3626991A (en) | Selvage-forming motion operable in conjunction with a filling-cutting mechanism of a shuttleless loom | |
GB2200658A (en) | Weft thread cutting device | |
US3487436A (en) | Weft thread cutting arrangement | |
US3376900A (en) | Looms operating with multi-color stationary weft supplies | |
US2389808A (en) | Device for making fabrics on gripper looms | |
US3481370A (en) | Selective weft depositors for shuttleless looms | |
US3989069A (en) | Method of and apparatus for compensating for weft tension in traveling-wave shedding looms | |
US3431951A (en) | Loom filling positioner | |
US2990854A (en) | Selvage forming on fabrics | |
US3731712A (en) | Weft distributor and selector for power looms | |
US3455340A (en) | Weft thread locating and presenting device in weaving machines,particularly of the shuttleless type | |
US3587662A (en) | Weft distributor for shuttleless loom | |
US2954056A (en) | Weaving machine | |
US3780775A (en) | Weft control mechanism for shuttleless looms | |
US3736963A (en) | Weft yarn control device |