US3380133A - Device for securing warp threads - Google Patents

Device for securing warp threads Download PDF

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Publication number
US3380133A
US3380133A US512345A US51234565A US3380133A US 3380133 A US3380133 A US 3380133A US 512345 A US512345 A US 512345A US 51234565 A US51234565 A US 51234565A US 3380133 A US3380133 A US 3380133A
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US
United States
Prior art keywords
warp threads
threads
warp
tapes
thread
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
US512345A
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English (en)
Inventor
Meierhofer Hugo
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.)
Zellweger Uster AG
Original Assignee
Zellweger Uster 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 Zellweger Uster AG filed Critical Zellweger Uster AG
Application granted granted Critical
Publication of US3380133A publication Critical patent/US3380133A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/16—Apparatus for joining warp ends

Definitions

  • This invention relates in general to weaving machines and more particularly to a device for holding the ends of drawn-in warp threads for use on machines for drawing in warp threads.
  • the ends of the warp threads In the machines used to draw in warp threads, the ends of the warp threads, once they have been drawn in, have to be fixed or secured in place so as to prevent them from becoming entangled with one another; this complicates the introduction of the warp and the harness into the loom.
  • There are numerous methods of securing the warp threads In one method the ends of the warp threads are inserted, after they have been drawn in, between two self-adhesive tapes which are then pressed together so that the end of each warp thread is anchored in proper position adjacent the next.
  • the adhesive tape with the row of threads anchored in it is stretched perpendicularly of the direction in which the drawn-in warp threads extend by means of a stretching device. In cases where the warp threads have only limited elasticity, this lateral force is strong enough to hold the adhesive tape stretched over the entire width occupied by the Warp threads after they have been drawn in and anchored in position.
  • each warp thread is stretched elastically when it is drawn in so that, after it has been anchored in position on the adhesive tape, it has a tendency to return to its original form and, by doing so, exerts a considerable lateral pull on the tape.
  • the lengthwise force exerted on the adhesive tape by the stretching device is no longer strong enough to keep it stretched because each warp thread exerts a pull transversely of the direction in which the tape is stretched. The result is that the warp threads together with the tape are pulled back toward the healds and hence interfere with, or even completely obstruct, the drawing-in operation.
  • An object of the instant invention is to obviate the disadvantages inherent in prior art arrangements by relatively simple and economic means.
  • Another object of the instant invention is to provide means for securing warp threads against elastic longitudinal movement after drawing in of the warp threads.
  • a further object of the instant invention is to provide means for grasping the securing means for the warp threads so as to provide only for movement transverse to the threads.
  • a device for use on machines for drawing in warp threads serving to hold the ends of the warp threads after they have been drawn in and comprising thread-holding components provided with guides which permit the threadholding components to move only in a direction perpendicular to the direction in which the held threads extend.
  • FIGURE 1 diagrammatically illustrates a warp thread zone of a machine for drawing warp threads between the healds and the holders in the plane of the layer of warp threads;
  • FIGURE 2 is a side elevation taken along line A--A of FIGURE 1;
  • FIGURE 3 is a top plane view of the device illustrated in FIGURE 1;
  • FIGURE 4 is a side view of a second embodiment of the invention.
  • FIGURE 5 is a side elevation taken along line BB in FIGURE 4.
  • FIGURE 6 is a top plane view of the device illustrated in FIGURE 1.
  • threads 11 are drawn through the eyes of healds 12, and terminate in a holder consisting, for example, of two self-adhesive tapes 13 and 14 which are reeled off from feed rollers (not shown) and stuck or pressed together between pressure rollers 15, ⁇ 16. Before the tapes pass between the pressure rollers, each warp thread is inserted between them so that it is held fast by the adhesive of the tapes.
  • self-adhesive tapes can also be replaced by a stitching or sewing machine (not shown) mounted near the pressure rollers 15, 16 and arranged to stitch each warp thread to at least one of the tapes 13 or 14 which, in this case, are not adhesive, so as to join the warp thread firmly to the tape.
  • a stitching or sewing machine mounted near the pressure rollers 15, 16 and arranged to stitch each warp thread to at least one of the tapes 13 or 14 which, in this case, are not adhesive, so as to join the warp thread firmly to the tape.
  • the tapes 13, 14 move forward so that, the completed layer of drawn-in warp threads includes an edge formed by the tapes.
  • the ends of the warp threads, together with the tapes, are pulled towards the healds 12, despite the stretch conventionally applied along the length of the tape.
  • the invention avoids this by the provision of components which grip and hold the tape at fairly short intervals and which in turn can only move along a direction perpendicular to the warp threads due to their support within a rigid guide.
  • these components are in the form of clamps 17 attached to a runner 19 adapted to slide along a slot 18 formed in a rail 20.
  • the clamps 17 are arranged at regular intervals along the tapes 13, 14 and hold the tapes at a uniform distance from the rail 20 so that the warp threads, and tapes, are prevented from being pulled back.
  • spiked wheels 21, 22, 23, 24 which are mounted in pairs so as to be rotatable on a fixed support 25, and between which the tapes 13, 14 together with the warp threads are drawn.
  • the plane of the spiked wheels extends substantially perpendicularly to the warp threads so that the tapes 113, 14 cannot be axially displaced once they have been penetrated by the spikes on the wheels.
  • both forms of guides in combination with one another, for example, by providing near the drawer-in, spiked wheels as well as sliding clamps for additionally stretching the layer of warp threads over its entire width.
  • said thread engaging components include a pair of self-adhesive tapes pressed together with said Warp threads inserted therebetween.
  • a device as defined in claim 2 wherein said grasping 4 means includes a plurality of spiked wheels engaging said thread engaging components and lying in a plane transverse to the length of said threads.
  • said thread engaging components include a tape to which the end of each warp thread is stitched in spaced relation.
  • said grasping means includes a plurality of spiked wheels engaging said thread engaging components and lying in a plane transverse to the length of said threads.
  • said grasping means additionally includes a plurality of spiked wheels engaging said thread engaging components and lying in a plane transverse to the length of said threads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
US512345A 1964-12-18 1965-12-08 Device for securing warp threads Expired - Lifetime US3380133A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1643564A CH418252A (de) 1964-12-18 1964-12-18 Vorrichtung zum Halten der Enden eingezogener Kettfäden bei Kettfadeneinziehmaschinen

Publications (1)

Publication Number Publication Date
US3380133A true US3380133A (en) 1968-04-30

Family

ID=4417342

Family Applications (1)

Application Number Title Priority Date Filing Date
US512345A Expired - Lifetime US3380133A (en) 1964-12-18 1965-12-08 Device for securing warp threads

Country Status (5)

Country Link
US (1) US3380133A (de)
CH (1) CH418252A (de)
DE (1) DE1535961B1 (de)
DK (1) DK127074B (de)
GB (1) GB1096209A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696477A (en) * 1971-05-10 1972-10-10 Barber Colman Co Warp clamp
US5249339A (en) * 1989-12-22 1993-10-05 Zellweger Uster Ag Apparatus for drawing in warp threads
US20100123267A1 (en) * 2008-11-14 2010-05-20 Tsinghua University Method for stretching carbon nanotube film

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506256A (zh) * 2011-11-10 2012-06-20 中国重汽集团济南动力有限公司 一种带加热装置的输油管路

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US468914A (en) * 1892-02-16 Machine for drawing in warp-threads
US1342876A (en) * 1917-08-22 1920-06-08 Barber Colman Co Warp-clamp
US1383195A (en) * 1903-02-06 1921-06-28 Barbercolman Company Machine for operating upon warp-threads
US2230494A (en) * 1939-01-03 1941-02-04 Dallas Cotton Mills Company Warp drawing apparatus and method
US2738176A (en) * 1952-02-05 1956-03-13 American Viscose Corp Warp beam package
US2786257A (en) * 1952-02-11 1957-03-26 American Viscose Corp Tape-applying device
GB787839A (en) * 1953-03-27 1957-12-18 Albert Eddleston Aspinall Improvements in or relating to textile drawing-in frames
US2942324A (en) * 1957-09-10 1960-06-28 Zellweger A G App Und Machinen Device for clamping the threads of a warp

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US468914A (en) * 1892-02-16 Machine for drawing in warp-threads
US1383195A (en) * 1903-02-06 1921-06-28 Barbercolman Company Machine for operating upon warp-threads
US1342876A (en) * 1917-08-22 1920-06-08 Barber Colman Co Warp-clamp
US2230494A (en) * 1939-01-03 1941-02-04 Dallas Cotton Mills Company Warp drawing apparatus and method
US2738176A (en) * 1952-02-05 1956-03-13 American Viscose Corp Warp beam package
US2786257A (en) * 1952-02-11 1957-03-26 American Viscose Corp Tape-applying device
GB787839A (en) * 1953-03-27 1957-12-18 Albert Eddleston Aspinall Improvements in or relating to textile drawing-in frames
US2942324A (en) * 1957-09-10 1960-06-28 Zellweger A G App Und Machinen Device for clamping the threads of a warp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696477A (en) * 1971-05-10 1972-10-10 Barber Colman Co Warp clamp
US5249339A (en) * 1989-12-22 1993-10-05 Zellweger Uster Ag Apparatus for drawing in warp threads
US20100123267A1 (en) * 2008-11-14 2010-05-20 Tsinghua University Method for stretching carbon nanotube film
US8795461B2 (en) * 2008-11-14 2014-08-05 Tsinghua University Method for stretching carbon nanotube film

Also Published As

Publication number Publication date
DK127074B (da) 1973-09-17
CH418252A (de) 1966-07-31
DE1535961B1 (de) 1970-01-15
GB1096209A (en) 1967-12-20

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