US3561496A - Device for binding wefts on a shuttleless loom - Google Patents

Device for binding wefts on a shuttleless loom Download PDF

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Publication number
US3561496A
US3561496A US788140A US3561496DA US3561496A US 3561496 A US3561496 A US 3561496A US 788140 A US788140 A US 788140A US 3561496D A US3561496D A US 3561496DA US 3561496 A US3561496 A US 3561496A
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United States
Prior art keywords
lever
needle
supported
threads
thread
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Expired - Lifetime
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US788140A
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English (en)
Inventor
Maxime Guallo
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Ateliers Diederichs SA
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Ateliers Diederichs SA
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00—Leno or similar shedding mechanisms

Definitions

  • the crossing of the threads is effected by three levers all actuated by an independent, single, triple action cam, coordinated to operate the binding as a function of the time of arrival of the end of the weft with respect to the crossing of the warp yarns.
  • Two levers are hinged to a fixed common axis and the third lever is hinged to one of said two levers.
  • the first lever controls one or more straight threads
  • the second lever controls the dip of one or more cross threads
  • the third produces a reverse motion between the cross threads.
  • the present invention relates to a device for binding wefts on a shuttleless loom and more particularly to binding by a leno shed working on at least one straight" thread and at least one cross thread per straight" thread.
  • the binding On the false selvedge side, the binding has, leno weave at two different points, namely: level with the least warp yarn, and about 1 centimeter beyond, so as to hold taut the end of the weft to avoid its reentry into the shed and to enable the cutting of the ends which extend from the fabric.
  • This method of binding can be obtained with equipment mounted on the heald slide bars inside the frames, the binding threads being provided from reels placed at the rear of the loom.
  • Another object is to provide a device in which the feed bobbins are fixed, are of large content and which enable an independent weaving of an entire warp.
  • a binding device by leno shed working on at least one straight thread and at least one cross thread per straight" thread, whereby the crossing of the threads is ensured by levers which are all actuated by a single independent cam producing the binding as a function of the moment of arrival of the end of the weft with respect to the crossing of the warp yarns.
  • the binding device is composed of a triple action cam actuating three levers, two of these levers being hinged to a common fixed axis and the third lever being hinged to one of the aforesaid levers, the first of these levers controlling the one or more "straight" threads, the second controlling the dip of the one or more cross threads and the third acting, through an oscillating rocker effects the lateral displacement in reverse direction of the said cross threads.
  • FIG. 1 illustrates the device in side elevation
  • FIG. 2 illustrates the assembly of FIG. I in plan view from above
  • FIGS. 3, 4 and 5 illustrate on a larger scale the various positions of the needles carrying the threads
  • FIG. 6 illustrates the case of binding at two points by a straight" thread and two cross threads
  • FIG. 7 illustrates the case of binding by a straight thread and a cross thread at one point, and by a straight thread and
  • the levers 3 and 4 are hinged to a fixed horizontal common axis 9.
  • the lever 3 actuated by one of the peripheral profiles of the cam 2, supports a needle I0, or twin needles I0 in the case in the drawing and which receives, through four holes, two straight" threads 11 and 12 of two bindings.
  • needle 10 is actuated vertically enabling the threads to be disengaged in the low position on the passage of the lance or needle, bearing the weft (FIGS. 3 and 5) and to be placed in crossing position (FIG. 4).
  • the lever 4 is hinged to the fixed axis 9, and is actuated by a second peripheral profile of the cam 2.
  • the lever 4 supports the lever 5 which is hinged to a vertical axis 14 fixed to the said lever 4.
  • the needle 15 hinged at I9 on the lever 5, is actuated directly by lever 5 to effect a horizontal reciprocatory to and fro movement.
  • the needle 16 is actuated to reciprocate horizontally by lever 5, but in an opposite direction to the movement of the needle 15, by means of a small reversing lever 17 hinged to an axis I fixed to the. lever 4.
  • the aforesaid needles l5 and 16 are guided by a plate bearing two grooves 20 mounted on the lever 4, which needles l5 and I6 are provided with two holes for carrying threads 21, 22 and 23, 24 respectively.
  • threads 23 and 24 concatenate with the straight thread II, 12 the end of the weft yarn (FIGS. 6 and 7) and the threads 21 and 22, concatenate with the straight' thread 12 the weft against the last warp thread (FIG. 6).
  • FIG. 7 a single cross thread 21 or 22 is used.
  • the device according to the present invention is positioned proximate the edge of the fabricon the side where the false selvage is formed. In the case of a loom forming a false selvagc at both edges of the fabric, there is one device at each edge.
  • the shaft 9, on which the levers 3 and 4 are pivoted, is mounted on a support secured on the conventional breast bar (not shown).
  • binding threads hold the weft thread up to the movement of stacking of the shot by the sley and of the end of the crossing of the warp yarns.
  • the number of binding points is obviously not limited to two.
  • apparatus for binding weft ends comprising a first lever, a second lever and a third lever, means pivotally supporting said first lever and said second lever for oscillation in a common plane, means pivotally supporting said third lever on said second lever, camming means, means for driving said camming means, means for biasing said first lever, said second lever, and said third lever against said camming means, a first needle supported by said first lever, a guide means supported by said second lever, a second needle and a third needle supported by said third lever, said second needle and said third needle being guided for reciprocation in said guide means for cooperation with said first needle, and reversing means for acting on said third needle for imparting to said third needle reciprocating oppositely directed to the reciprocation. of said second needle.
  • Apparatus as claimed in claim 1 including a further needle supported by said first lever extending parallel with said first needle and spaced therefrom.
  • said reversing means includes a fourth lever including opposite end portionsand pivotally supported on said secondlever between said opposite end portions, one of said opposite end portions being pivotally supported on said third lever, the other of said opposite end portions pivotally supporting said third needle.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US788140A 1968-01-18 1968-12-31 Device for binding wefts on a shuttleless loom Expired - Lifetime US3561496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR69049538 1968-01-18

Publications (1)

Publication Number Publication Date
US3561496A true US3561496A (en) 1971-02-09

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US788140A Expired - Lifetime US3561496A (en) 1968-01-18 1968-12-31 Device for binding wefts on a shuttleless loom

Country Status (6)

Country Link
US (1) US3561496A (es)
BE (1) BE726295A (es)
CH (1) CH505234A (es)
DE (1) DE1816407A1 (es)
FR (1) FR1563842A (es)
GB (1) GB1260130A (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794083A (en) * 1972-04-28 1974-02-26 Fieldcrest Mills Inc Selvage forming apparatus for looms
FR2345544A1 (fr) * 1976-03-25 1977-10-21 Rueti Ag Maschf Procede et dispositif pour former une lisiere de tissu dans un metier a tisser
US4580605A (en) * 1983-07-08 1986-04-08 Societe Alsacienne De Construction De Material Textile Leno selvedge forming device
US4614210A (en) * 1984-02-21 1986-09-30 N. V. Michel Van De Wiele Leno device for weaving machines and weaving machines equipped with such a leno device
US5857495A (en) * 1995-05-19 1999-01-12 Klocker-Entwicklungs-Gmbh Device for forming a doup fabric edge
EP1063329A1 (fr) * 1999-06-25 2000-12-27 ROLAND VLAEMYNCK TISSEUR, Sociéte Anonyme Procédé de tissage d'une serviette d'essuyage, moyens de mise en oeuvre du procédé et serviette ainsi obtenue

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1000443A4 (nl) * 1987-03-30 1988-12-06 Picanol Nv Inrichting voor het vormen van een zelfkant, respektievelijk zelfkanten, aan weefsels.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047027A (en) * 1959-07-31 1962-07-31 Sdruzeni Podniku Textilniho St Device for selvedge forming
US3242949A (en) * 1963-09-03 1966-03-29 Elitex Zavody Textilniho Device for forming a leno weave

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047027A (en) * 1959-07-31 1962-07-31 Sdruzeni Podniku Textilniho St Device for selvedge forming
US3242949A (en) * 1963-09-03 1966-03-29 Elitex Zavody Textilniho Device for forming a leno weave

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794083A (en) * 1972-04-28 1974-02-26 Fieldcrest Mills Inc Selvage forming apparatus for looms
FR2345544A1 (fr) * 1976-03-25 1977-10-21 Rueti Ag Maschf Procede et dispositif pour former une lisiere de tissu dans un metier a tisser
US4580605A (en) * 1983-07-08 1986-04-08 Societe Alsacienne De Construction De Material Textile Leno selvedge forming device
US4614210A (en) * 1984-02-21 1986-09-30 N. V. Michel Van De Wiele Leno device for weaving machines and weaving machines equipped with such a leno device
US5857495A (en) * 1995-05-19 1999-01-12 Klocker-Entwicklungs-Gmbh Device for forming a doup fabric edge
EP1063329A1 (fr) * 1999-06-25 2000-12-27 ROLAND VLAEMYNCK TISSEUR, Sociéte Anonyme Procédé de tissage d'une serviette d'essuyage, moyens de mise en oeuvre du procédé et serviette ainsi obtenue
FR2795435A1 (fr) * 1999-06-25 2000-12-29 Roland Vlaemynck Tisseur Procede de tissage d'une serviette d'essuyage, moyens de mise en oeuvre du procede et serviette ainsi obtenue

Also Published As

Publication number Publication date
BE726295A (es) 1969-05-29
GB1260130A (en) 1972-01-12
DE1816407A1 (de) 1969-08-21
FR1563842A (es) 1969-04-18
CH505234A (fr) 1971-03-31

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