US3665976A - Suction apparatus on a textile machine - Google Patents

Suction apparatus on a textile machine Download PDF

Info

Publication number
US3665976A
US3665976A US50722A US3665976DA US3665976A US 3665976 A US3665976 A US 3665976A US 50722 A US50722 A US 50722A US 3665976D A US3665976D A US 3665976DA US 3665976 A US3665976 A US 3665976A
Authority
US
United States
Prior art keywords
suction
thread
nozzle
clamping
suction apparatus
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
Application number
US50722A
Other languages
English (en)
Inventor
Alexis Freihofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ruti Machinery Works Ltd
Maschinenfabrik Rueti AG
Original Assignee
Maschinenfabrik Rueti AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rueti AG filed Critical Maschinenfabrik Rueti AG
Application granted granted Critical
Publication of US3665976A publication Critical patent/US3665976A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3066—Control or handling of the weft at or after arrival
    • D03D47/308—Stretching or holding the weft

Definitions

  • ABSTRACT A suction apparatus for picking up the free end-portion of a July 22, 1969 Switzerland ..01 l 162 thread on a textile machine wherein the thread is brought into a freely stretched condition over a suction means and is drawn [521' US. Cl ..l39/ 126 i hi means b a suction action, said apparatus comprising [51] Int. Cl.
  • ..D03d 47/24 a thread-holder located on the suction means, said holder [58] Field of Search ..l39/122, 125, 126, 246, 247, comprising clamping zones that are biassed towards each 139/256 R, 256 A; 194, 257; 242/ 35.6 E; 66/ 140 S, other for clamping a thread therebetween and guide means for 145 S guiding the end-portion of the thread towards the clamping zones; and means for pulling the end-portion of the thread, drawn into the suction means, in between the clamping zones.
  • This invention relates to an apparatus on a textile machine, e.g., a loom, for picking up the loose end-portion of a thread, which is moved in a freely extended condition over a suction means of the apparatus and is drawn into the suction means by the suction of said means.
  • This type of thread operation takes place for example during weaving when the loose end of a weft-thread is released from a shuttle after the passage of the shuttle through a shed and the loose end is transferred to a suction means in the form of a nozzle. After this transfer, the weft-thread is often withdrawn somewhat prior to beating up at the beat-up of the fabric so that it is in a neatly stretched position for the beat-up. Since it is desirable to keep the thread-ends drawn in by the suction nozzle as short as possible, it is found that when the thread is pulled back for the purpose of bringing it into a stretched condition, the thread is not retained in the suctionnozzle with the necessary reliability and firmness. This is observed in particular when threads of different kinds are used.
  • this invention provides an apparatus for overcoming this draw-back.
  • the present invention provides a suction apparatus or suction-nozzle arrangement, having additional means for retaining the thread which are extremely reliable even when different kinds of thread are being handled.
  • This invention contemplates a suction apparatus which is characterized in that a thread-holder means is positioned on a suction means, the thread-holder means comprises clamping zones that are biassed towards each other and are used to clamp a thread, guides are provided for guiding the end-portion of the thread towards the clamping zones, and means are provided for the purpose of drawing the end-portion of the thread, sucked into the suction-nozzle, in between the clamping zones.
  • FIG. 1 is a schematic illustration of a loom having means for inserting weft-threads, wherein use is made of the suction apparatus of the present invention
  • FIG. 2 is an end view of a suction-nozzle in the apparatus of the invention used as seen in the longitudinal direction of its suction orifice;
  • FIG. 3 is a side view of the nozzle shown in FIG. 2 as viewed on the narrow side in the direction of the arrow III;
  • FIG. 4 is a view of another embodiment of the suction-nozzle arrangement of the invention wherein an auxiliary suctionnozzle is employed.
  • FIG. 5 is a detail side-view, on a larger scale, of the end of the auxiliary suction-nozzle seen in FIG. 4.
  • FIG. 1 illustrates schematically an embodiment of a weft-insertion means in a loom, the suction-nozzle arrangement of the present invention being used with this means.
  • the reference numerals l1 and 12 indicate large weft-thread supply bobbins arranged on both sides of the frame of the loom. From these bobbins the threads 13 and 14, respectively,
  • the thread 13 terminates in the suction-novJe or retaining nonle 21, which constitutes a thread-retaining means, whereas the thread 14 passes along the corresponding suction-nozzle or retaining nozzle 22, which also constitutes a thread-retaining means, and through the pull-back arrangement 48, 49.
  • the retaining suction-nozzles 21 and 22 are mounted on the frame of the loom. To make the drawing easier to understand, only the warp-threads 23 at the sides of the fabric are shown, and not the entire group.
  • the thread 14 extends through the shed formed by the warp-threads 23, and its free end is retained by the suction-nozzle 25.
  • the suction-nozzle on the left-hand side which corresponds to nozzle 25 is indicated by the reference numeral 26.
  • the nozzles 25 and 26 are arranged on the movable sley 30 and move relatively thereto in a direction at rightangles thereto (forwards and backwards as shown by the dashdot lines).
  • the shuttle 31 Located on the sley 30 is the shuttle 31 used as a thread positioning or locating element or means for inserting the weft-threads into the shed.
  • the shuttle 31 incorporates an element made of ferromagnetic material, e.g. iron, which element is positioned into the lower slide surface of the shuttle.
  • the shuttle also contains two horizontal orifices 43 and 44 extending laterally therethrough.
  • Means for retaining the weft-thread during its insertion into the shed are provided in these orifices. These means can, for example, comprise bristles which are able to retain a thread disposed therein by applying a predetermined force to the thread. It is possible nevertheless to withdraw the thread from the shuttle 31, i.e. the predetermined force is less than the breaking strength of the weft-thread (i.e. threads 13 and 14).
  • each of the arrangements 33 and 34 comprises a permanent magnet surrounded by a wire coil.
  • These magnets are U-shape (i.e. they are horse-shoe magnets) and are incorporated in the sley 30 in such a manner that their poles are upwardly directed, (i.e. the magnet forms an upright U).
  • the ferromagnetic element 35 which moves with the shuttle, produces a change in the magnetic flux in the magnetic arrangements 33 and 34.
  • pull-in devices 36 and 37 incorporating, respectively, the hooks 41 and 42.
  • These devices are adapted to rotate about the spindles 38 and 39 carried by the sley 30, and are used for pulling the weft-threads l3 and 14, respectively, into the shuttle 31.
  • This pull-in action takes place when, during the movement of the sley into the foremost position, i.e. the thread beat-up position, each of the rollers on the two sides (indicated by the same reference numeral 27) moves over the projecting portion 28 of a carnmed surface and thereby swings the hook 41 about the spindle 38 in the anti-clockwise direction, and the hook 42 about the" spindle 39 in the clockwise direction.
  • the thread-guides 19 and 20 are controlled in such manner that they only pass the thread that they hold to the hooks 41 and 42, respectively, when the shuttle 31 is located at their side of the loom.
  • the thread-braking devices 17 and 18 each incorporate a thread-clamp 46 and 47, and these clamps are each actuated by a controllable magnet.
  • a thread pullback means including elements 48 and 49, is provided on each side of the loom.
  • the shuttle 31 has just arrived from the left at the right-hand side of the loom.
  • the thread 14, inserted by the shuttle during its flight, has been braked by the clamp 47 of the braking device 18 and thus pulled out of the shuttle 31 after the shuttle has moved over the magnetic arrangement 33 and the magnet of the braking device 18 has been supplied with current so as to close this device.
  • the supply of current to the magnet of the device 18 was controlled by a signal which was produced by the ferromagnetic element 35 during the flight of the shuttle 31 over the arrangement 33.
  • the pulled out end of the thread 14 has been drawn in and retained by the nozzle 25.
  • the magnet of the braking device 17 on the right-hand side has been supplied with sufiicient current to cause closing of the clamp 46.
  • the thread pull-back means (48 and 49) on the left-hand side of the loom pulls back the thread 14 a little by means of the hook 48 so that the thread is neatly stretched when the reed 32 beats up the pulled-in thread 14.
  • the shed comprising the warp-threads 23 is then changed.
  • the shears 45 and 40 cut off the weftthread 14 at the two edges of the fabric.
  • the suction-nozzle 26 is not at the same level as the fabric beat-up zone, but is moved forward away from this zone and therefore also away from the thread 14, i.e. away from the sley 30.
  • the end of thread that becomes free on the left-hand side when cutting takes place is therefore drawn into the retaining nozzle 22.
  • the short thread-end hanging in the thread-transfer nozzle 25 must be drawn away.
  • the pull-in hook 41 rotates in the counter-clockwise direction and is moved through the horizontal orifice 44 into the shuttle 31.
  • the hook picks up the thread 13, presented by the thread-guide 19, and, since the clamp 46 is closed, draws the thread out of the thread-retaining means provided by nozzle 21 and pulls it as a loop through the orifice 44 in the shuttle 31.
  • the movement of the pull-in device 37 that occurs at the same time is not important, since this cannot transfer a thread through the thread-guide 20.
  • the suction-nozzles 25 and 26, constituting the thread transfer devices or means, are carried by the sley 30 and are also movable at right-angles to the longitudinal direction of the sley.
  • these nozzles can be moved relatively to the sley 30 into a position such that the fabric-side or forward side surface of the shuttle 31 moves directly past the orifice of the suction-nozzle 25 or 26.
  • the end of the thread drawn out of the shuttle 31 is thus picked up in a reliable manner.
  • the nozzles 25 and 26 can be moved away from the weft-threads 13 and 14 when these threads, as described above, are taken over by the retaining nozzles 21 and 22 after they have been cut off.
  • the nozzle 25 (and the nozzle 26) can be constructed, for example, in the manner seen in FIGS. 2 and 3. These figures are on a greater scale.
  • the end of nozzle body 50 forms an orifice or opening 51 and has at the top a small plate 52 and a small plate 53.
  • the plate 53 is bonded or otherwise secured to the noule body 50.
  • the plate 52 is attached to the carrier 54 by screws 58 and is supported by said carrier.
  • the carrier 54 is in turn secured to the nozzle body 50 by screws 55.
  • the boundary or edge portion 62 of plate 52 and the boundary or edge portion 63 of plate 53 cross at the point of intersection 60. They form an acute angle with each other and each one constitutes a guide for the thread 13 or 14.
  • the plate 52 is made of ferromagnetic material and is continuously pulled by the magnet 56 which is inserted in the nozzle body 50. This results in a zone (located on the right-hand side of the point of intersection 60 in FIG. 2) in which portions of the plates 52 and 53 bear against each other and are constantly biassed towards each other to provide a thread holding means, or thread holder device. This zone is bounded by the solid line 66 defining the lower edge of plate 52 and the broken line 67 defining the upper portion of plate 53. Since the thread to be drawn into the suction nozzle 25 is guided by the boundary portions 62 and 63 towards the point of intersection 60, these boundary portions 62 and 63 form guide arms or surfaces which diverge from each other beginning at the area where the plates 52 and 53 bear against each other.
  • the plate 52 By pressing on the area 57, indicated in FIG. 2 by the broken line, the plate 52 can be tilted about the edgeportion 59, so that the zone of the plate 52 which bears on the plate 53 is lifted somewhat from the plate 53 thereby overcoming the bias provided by the magnet 56. This results in the release of the end portion of thread held between these plates 52 and 53 and this end portion can be drawn into the nozzle opening 51 by the flow of air.
  • a nozzle 25 as already mentioned, is brought into the direct vicinity of the forward side-wall of the shuttle 31 when the shuttle 30 moves from left to right.
  • the weft-thread 14 is retained at an appropriate moment. This is so selected that the thread-end, drawn from the shuttle 31 or located thereby so it, extends over the greater part of the nozzle opening 51 or even slightly beyond the nozzle 25 before it is drawn into the nozzle. Since FIG. 2 shows a view of the nozzle 25 in the direction of its opening, the thread-end, indicated by the reference numeral 64, extends in this Figure from right to left.
  • the thread is thereupon drawn back a little through the pull-back device of means 48, 49 shown on the left in FIG. 1, by this device moving in the direction of the arrow 61 shown in FIG. 1 and into the position as shown in this Figure.
  • the thread 14 is stretched out neatly in the shed.
  • part of the length of the thread-end 64 is again drawn out of the opening 51.
  • the thread-portion 64 slides between the contiguous zones of the plates 52 and 53, defined by the boundary or edge portions 66 and 67, and moves into the position indicated by the numeral 64 in FIGS. 2 and 3, in which position it is clamped therebetween as a result of the bias imposed by the magnet 56.
  • the weft-thread is retained in a very reliable manner by the suction arrangement illustrated.
  • the retaining force resulting from the clamping action is independent of the length of the thread-end 64 and is considerably greater than the force resulting from the suction effect. In particular this greater retaining force is also present when different kinds of weft material are being worked.
  • the weft-thread is elastically extensible, it is hardly possible, without the provision of the clamping zones of this invention to prevent the end-portion of the thread from springing back and jumping out of the nozzle after it has been released from the shuttle.
  • it is of particular advantage that as a result of a pull on the thread this is moved into and between the clamping zones, so that simply because of its elastic contraction it is moved in between the clamping zones.
  • a pullback arrangement 48, 49 is not absolutely necessary in these circumstances.
  • boundary portions 62 and 63 acting as guide-arms or guide means, form anacute angle with each other, the size of which corresponds approximately to that shown in FIG. 2, slip of the thread-end 64 is reliably ensured between the zones of mutual contact defined by the boundary portions 66 and 67, i.e. between the superposed zones of the plates 52 and 53.
  • one or both of the boundary portions can be bent immediately in front of the point of intersection 60 in a direction such that the angle at said point of intersection 60 becomes still more acute. This is the case with the boundary portion 63 seen in FIG. 2.
  • the weft-thread 14 is cut on both sides of the loom by the shears and 45.
  • the resultant free end is drawn into the retaining nozzle 22 on the left-hand side of the loom.
  • the cut-off thread-end remains firmly held in the suction-n02 zle 25.
  • the suction apparatus or arrangement operates on a continuous basis, then for the apparatus to operate correctly, i.e. for the next thread-end to be properly picked up, it is necessary that each clamped thread-end is removed again before the new thread-end is picked up.
  • the apparatus strikes a spring-loaded pin 65 in the rearmost position of its zone 57. This causes the plates 52 and 53 to be moved apart somewhat in the zones defined by portions 66 and 67 where they bear against each other. In this condition, the thread-end 64, held by the nozzle 25, is drawn into said nozzle.
  • FIG. 4 shows the right-hand side of the loom together with the warp-threads 23, the sley 30 and the magnetic control arrangement or electrical sensing means 33.
  • this cutting means in contrast to that shown in the embodiment of FIG. 1, makes a cut only after each second weft-insertion.
  • another suction means in the form of a second suction-nozzle or auxiliary suction-nozzle 70. That side of this nozzle facing the suction-nozzle 25 incorporates a threader means, which is formed by appropriately shaping the wall of the nozzle.
  • the nozzle 70 is mounted on the frame of the loom. The shape of this threader means 71 is shown in side-view in FIG. 5.
  • a suction apparatus having suction means for picking up a free end-portion of a thread on a textile machine wherein the thread is brought by thread locating means over said suction means and is drawn into said suction means by the suction action thereof, the improvement which comprises:
  • a thread-holder located on the suction means, said threadholder comprising clamping zones that are biassed towards each other for clamping a thread therebetween; guide means for guiding the end-portion of the thread towards the said clamping zones; and means for pulling the end-portion of the thread, drawn into the suction means, into clamped condition positioned between the said clamping zones.
  • suction apparatus of claim 1 in which said suction means comprises a suction nozzle having a suction orifice, the clamping zones are formed by two small clamping plates which bear against each other, said plates being located at the suction orifice of the suction-nozzle and being biassed towards each other, said guide means comprises a pair of generally opposed guide surfaces which, beginning at the clamping zones, diverge from each other to form an opening therebetween; the end-portion of thread to be picked up extends over the suction orifice in the freely stretched condition from that side on which the clamping zones are located, and is moved in between the clamping zones by being pulled back by said means for pulling the thread.
  • suction apparatus of claim 2 in which said textile machine is a loom, and said means for pulling said thread comprises a thread pull-back device; the thread pull-back device and the suction-nozzle being located on opposite sides of the warp-threads on said loom.
  • clamping plates are arranged approximately in a plane at right-angles to the direction in which suction takes place and are positioned to partly overlap each other, said overlapping portions of the 1 plates forming said clamping zones, the lateral boundary portions of each of the two plates cross at a point of intersection, and said boundary portions comprise the guide means which extend in one direction from the point of intersection and form the limits of the clamping zones which extend in the other direction from the point of intersection.
  • suction apparatus of claim 2 in which the said guide surfaces are provided by generally inward directed edges of said clamping plates to form an acute angle therebetween so the end-portion of the said thread can be extended over the suction-nozzle in the freely stretched condition in a direction which is at least approximately parallel with a straight line which falls within the said angle formed by the guide surfaces of said guide means and pass through the apex of this angle.
  • suction apparatus of claim 2 in which said nozzle has an elongated suction orifice and the clamping zones are located adjacent to the suction orifice at one end of its lengthwise extent.
  • suction apparatus of claim 1 in which additional means are provided for individually removing from said thread-holder the end-portions of thread clamped in said holder.
  • suction apparatus of claim 13 in which said threadholder includes means for biassing the clamping zones toward each other, and said additional means comprises a device for cutting ofi the free end-portion of each thread and for opening the two clamping zones thereby overcoming the effect of said biassing means.
  • suction apparatus of claim 12 in which said additional means comprises an auxiliary suction-nozzle which, for the purpose of picking up a thread, is provided with threader means, said suction means comprises a first suction-nozzle,
  • first and the auxiliary suction-nozzles are adapted for movement relatively to each other so that a first such relative movement can effect bringing of the thread into the threader means and a second such relative movement can effect pulling of the thread out of the first suction-noule, with the said second relative movement also effective for causing an increase in the length of thread required up to the first suctionnoule.
  • auxiliary suction-nozzle is located at a side of the first suction-nozzle that is adapted to have extended therefrom the end-portion of thread to be picked up, and the threader means is formed by a portion of the side-wall of the said auxiliary suction-noule that is adjacent to the said first suction-nozzle.
  • said textile machine is a loom having a sley and means for forming a shed from warp threads supplied to the loom, and, in a lateral direction thereof and in the direction away from the shed.
  • said auxiliary suction-nozzle followed by the said first suction-nozzle, the auxiliary suction-nonle being mounted firmly on the loom and the first suction-noule adapted to be movable on the sley.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
US50722A 1969-07-22 1970-06-29 Suction apparatus on a textile machine Expired - Lifetime US3665976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1116269A CH502459A (de) 1969-07-22 1969-07-22 Einrichtung zur Beeinflussung eines Fadens

Publications (1)

Publication Number Publication Date
US3665976A true US3665976A (en) 1972-05-30

Family

ID=4370698

Family Applications (1)

Application Number Title Priority Date Filing Date
US50722A Expired - Lifetime US3665976A (en) 1969-07-22 1970-06-29 Suction apparatus on a textile machine

Country Status (7)

Country Link
US (1) US3665976A (enrdf_load_stackoverflow)
JP (1) JPS4824427B1 (enrdf_load_stackoverflow)
BE (1) BE753693A (enrdf_load_stackoverflow)
CH (1) CH502459A (enrdf_load_stackoverflow)
CS (1) CS190315B2 (enrdf_load_stackoverflow)
FR (1) FR2055233A5 (enrdf_load_stackoverflow)
GB (1) GB1296475A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140156A (en) * 1976-10-06 1979-02-20 Barber-Colman Company Weft strand positioning at the exit end of the shed in a weaving machine
US4498504A (en) * 1982-09-23 1985-02-12 Burlington Industries, Inc. Filling fringe waste reduction
US4601314A (en) * 1984-01-19 1986-07-22 Sulzer-Ruti Machinery Work, Ltd Method and apparatus for operating a weaving machine
US5878787A (en) * 1994-12-22 1999-03-09 Textilma Ag Ribbon loom with separate guide eye
CN108349679A (zh) * 2015-10-28 2018-07-31 欧瑞康纺织有限及两合公司 用于铺放多个长丝的设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956593A (en) * 1957-08-15 1960-10-18 Fischer Ag Georg Automatic charging device for pirn changing apparatus
US3233636A (en) * 1963-02-12 1966-02-08 Lupton Brothers Ltd Thread holding mechanisms
US3417793A (en) * 1965-06-18 1968-12-24 Rueti Ag Maschf Weaving loom
US3494151A (en) * 1968-01-22 1970-02-10 Raalte Co Inc Van Suction operated yarn end clamping means for circular knitting machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956593A (en) * 1957-08-15 1960-10-18 Fischer Ag Georg Automatic charging device for pirn changing apparatus
US3233636A (en) * 1963-02-12 1966-02-08 Lupton Brothers Ltd Thread holding mechanisms
US3417793A (en) * 1965-06-18 1968-12-24 Rueti Ag Maschf Weaving loom
US3494151A (en) * 1968-01-22 1970-02-10 Raalte Co Inc Van Suction operated yarn end clamping means for circular knitting machines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140156A (en) * 1976-10-06 1979-02-20 Barber-Colman Company Weft strand positioning at the exit end of the shed in a weaving machine
US4498504A (en) * 1982-09-23 1985-02-12 Burlington Industries, Inc. Filling fringe waste reduction
US4601314A (en) * 1984-01-19 1986-07-22 Sulzer-Ruti Machinery Work, Ltd Method and apparatus for operating a weaving machine
US5878787A (en) * 1994-12-22 1999-03-09 Textilma Ag Ribbon loom with separate guide eye
CN108349679A (zh) * 2015-10-28 2018-07-31 欧瑞康纺织有限及两合公司 用于铺放多个长丝的设备
CN108349679B (zh) * 2015-10-28 2019-11-19 欧瑞康纺织有限及两合公司 用于铺放多个长丝的设备

Also Published As

Publication number Publication date
DE1942212A1 (de) 1971-02-11
JPS4824427B1 (enrdf_load_stackoverflow) 1973-07-20
CS190315B2 (en) 1979-05-31
GB1296475A (enrdf_load_stackoverflow) 1972-11-15
FR2055233A5 (enrdf_load_stackoverflow) 1971-05-07
CH502459A (de) 1971-01-31
BE753693A (fr) 1970-12-31
DE1942212B2 (de) 1975-09-25

Similar Documents

Publication Publication Date Title
US3532138A (en) Arrangement for the optical monitoring of weft threads
US3665976A (en) Suction apparatus on a textile machine
US3693668A (en) Pneumatic weft delivery means for shuttleless looms
JP3455538B2 (ja) 小幅織機用ひ投げ針及び小幅織機
US3494384A (en) Looms
CN109208158B (zh) 在片梭织机中不使用假边的纬纱操作装置
US4078586A (en) Method and apparatus for producing a selvage
CS249521B2 (en) Weaving machine
US3050088A (en) Weft tensioning and inserting device for gripper shuttle looms
US3426807A (en) Loom
US3315709A (en) Method of and device for feeding weft thread into the gripper of gripper looms
US2152255A (en) Method and loom for weaving
JPS626025B2 (enrdf_load_stackoverflow)
US2072161A (en) Thread carrying apparatus for weaving looms and the like
US3779288A (en) Weft carrier guide
US3417793A (en) Weaving loom
US3111966A (en) Method and apparatus for simultaneously weaving lengths of fabric
US4756343A (en) Method and device for the insertion of weft yarns into the shed of a weaving machine
US3310073A (en) Weft thread retaining and cutting device for shuttleless looms
US3014503A (en) Filling inserting carrier
US3119416A (en) Filling carriers for shuttleless looms
US3960186A (en) Weft yarn control device
US3934621A (en) Carrier for shuttleless looms
US3678967A (en) Shedding motion for a weaving machine
US3298400A (en) Filling carrier for shuttleless looms