US3331402A - Looms with means for correcting weft thread distortion - Google Patents

Looms with means for correcting weft thread distortion Download PDF

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Publication number
US3331402A
US3331402A US465932A US46593265A US3331402A US 3331402 A US3331402 A US 3331402A US 465932 A US465932 A US 465932A US 46593265 A US46593265 A US 46593265A US 3331402 A US3331402 A US 3331402A
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US
United States
Prior art keywords
fabric
temples
distortion
loom
guide
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
US465932A
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English (en)
Inventor
Kathriner Josef
Haberkern Johann
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.)
Sulzer AG
Original Assignee
Sulzer 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
Priority claimed from DE1964F0043348 external-priority patent/DE1535423A1/de
Application filed by Sulzer AG filed Critical Sulzer AG
Application granted granted Critical
Publication of US3331402A publication Critical patent/US3331402A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/20—Take-up motions; Cloth beams
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/22—Temples

Definitions

  • This invention relates to looms provided with temples tending to hold the woven fabric to full width. More particularly, the invention is concerned with a loom with temples, which is provided with novel means for correcting the distortion of the weft threads resulting from the action of the temples.
  • the present invention is, accordingly, directed to the provision of a loom with temples, which is equipped with novel means for correcting distortion of the weft threads resulting from the action of the temples.
  • a member having a guide surface, over which the fabric travels with a change of direction, is disposed between the temples and the takeup means and the guide surface is shaped to distort the central portion of the fabric in relation to the margins to compensate at least partially for the displacement of the weft threads produced by the temples.
  • the guide surface is formed to cause the central zone of the fabric to travel a longer distance than the marginal zones between the temples and the take-up means. As a result, the weft threads are straightened and the distortion eliminated.
  • the guide surface is provided in the form of a member mounted on the loom transversely of the direction of cloth travel and relieved over end portions corresponding in position to the temples.
  • the member is preferably made of a number of separate pieces each carrying a part of the guide ice surface and the pieces are interengageable and may conveniently comprise a tubular central piece and end pieces releasably secured to the loom and provided with axial pins extending into the tubular piece. The length of the member may then be varied by the use of one or more spacer rings placed on the axial pins between the central piece and the end pieces.
  • the outermost portions of the guide surface engaging the selvages may advantageously be formed with extra relief. This insures that the selvages will be deflected by the surface without tension and distortion.
  • FIG. 1 is a diagrammatic side elevational view showing the path of travel of the cloth in a loom constructed in accordance with the invention
  • FIG. 2 is a diagrammatic plan view of the parts shown in FIG. 1;
  • FIG. 3 is a view partly in elevation and partly in crosssection of a part of the distortion-correcting member of the invention.
  • FIG. 4 is a plan view of a modified form of member
  • FIGS. 5 and 6 are diagrammatic plan views showing, respectively, a fabric with weft thread distortion and a fabric in which such distortion has been corrected;
  • FIG. 7 is a diagrammatic side elevational view illustrating the use of a member of the invention in a loom having a single temple at each side;
  • FIG. 8 is a developed plan view of the parts shown in FIG. 7;
  • FIG. 9 is a view similar to FIG. 7 of a loom equipped with a pair of temples at each side;
  • FIG. 10 is a view similar to FIG. 8 of the loom shown in FIG. 9;
  • FIG. 11 is a diagrammatic side elevational view of a loom provided with a modified distortion-correcting member
  • FIG. 12 is a developed plan view of the parts shown in FIG. 11;
  • FIG. 13 is a view similar to FIG. 11 but showing a modified construction.
  • the fabric 2 leaving the shed 1 travels over a table 3 and turns downward at the end of the table.
  • the fabric then passes through a two-roll stand 4 applying tension to the fabric and over a deflecting roller 5 to a cloth or take-up beam 6.
  • a short distance beyond the shed 1 the edge zones 7 of the fabric pass through temples 8 at the sides of the table 3.
  • the temples are of conventional construction and each includes a roller 9 with its aXis in the plane of the table top and the fabric is guided over the rollers beneath the temple caps 16.
  • the resistance applied by the temples to the sides of the fabric causes the side margins of the fabric to lag with the lag increasing toward the edges.
  • the weft yarns become distorted as indicated diagrammatically by the curved lines 11 in FIG. 2.
  • the front end of the table 3 is provided with a member 13 having a guide surface, over which the fabric travels with a change of direction, and this surface acts on the central zone 12 of the fabric to increase the length of its travel between the temples and the take-up means.
  • the member 13 in the form shown in FIG. 3 is a bar of substantially circular cross-section except that, near its ends, the front surface 14 of the bar is cut back or relieved with the amount of relief corresponding roughly to the magnitude of distortion of the Weft yarn.
  • the fabric traveling over the bar is thus subjected to an adjustment of the weft threads which is greatest over the central zone of the fabric and decreases to zero at the outer edges of the fabric.
  • the member 13 includes end pieces 15, each provided at its outer end with a bracket 16 adapted to be attached to the table. At its inner end, each piece has an axial pin 17 receivable into a tubular central piece 18 rigidly connected to the loom and serving as a guide for the central zone of the fabric. As variations in fabric width occur, the pins 17 on the end pieces can be inserted varying distances into the tubular piece 18 with any spaces between the end pieces and the central pieces filled by spacer rings 19.
  • the transition between the largest cross-section of the bar 13 and its smallest cross-section in a relieved portion 14 corresponds in length substantially to the length of the associated temple.
  • the relieved portions 14 correspond substantially to the weft yarn distortion represented by the curved lines 11 and must be adapted to the particular fabric being woven by a small amount of shaping, which can be readily done.
  • the guide bar may be additionally relieved near its ends which engage the selvages, as indicated at 20 in FIG. 4.
  • FIG. 5 a length of fabric 2 with typical weft yarn distortion indicated by the curved lines 11 is shown in FIG. 5, while FIG. 6 shows a length of similar goods, from which weft yarn distortion is absent.
  • a fabric having the appearance of that shown in FIG. 6 can be readily produced by the use of the invention.
  • the loom diagrammatically illustrated in FIGS. 7 and 8 is provided with a temple 8 at each side and, during the take-up, the temples cause the margin-a1 zones 7 of the fabric 2 to lag in relation to the central zone 12, so that a distortion of the weft threads by a maximum amount a takes place.
  • the breast beam 21 of the loom carries a member 22 made up of end pieces 15 and a central piece 26, the length of which can be varied by the use of spacer rings to adapt the member to the fabric width.
  • the end pieces 15 are secured to the central piece 26 at points 27.
  • each piece 15 corresponds to the curvature of the weft yarns represented by the lines 11, so that the outer end of each piece 15 is relieved or cut back by the same distance a as the weft threads are distorted.
  • the weft threads assume the position indicated by the lines 1121 and thus become straight and undistorted.
  • the loom shown in FIGS. 9 and 10 includes a pair of temples 8, 8:: on each side of the loom and the marginal zones of the fabric are caused by the temples to lag in relation to the central zone, so that the maximum weft yarn distortion is equal to the distance 2a and the curvature 24a of the distorted Weft yarns 11 is correspondingly greater than in the fabric shown in FIG. 8. Accordingly, the end pieces 15a of the member 22 are given increased relief, so that the guide surface near the outer end of each piece15 is set back by a distance 2a. In shape, the curvature 23a of the end pieces corresponds to the curvature 24a of the weft yarns.
  • the guide surface which causes the distortion of the weft yarns, is formed on roller 31 which has a shape similar to the shape of the bars 13 or 22.
  • the roller 32 is of a shape to mate with the roller 31 and the fabric passes between the rollers.
  • the rollers may be rotated by the passage of the fabric between them or may be driven, if desired.
  • the correction of weft thread distortion is effected by means of a single roller 31 and the mating roller 32 is not used.
  • the roller 31 When the roller 31 is used alone, it may be so mounted as to perform the function of the deflecting roller 5 (FIG. 1).
  • a guide over which the fabric passes with a change of direction in its passage from the temples to the take-up means said guide having a length greater than the separation of the adjacent ends of said temples and having a convex substantially cylindrical surface over a central portion of the guide of length substantially equal to the separation of said temples and having a surface relieved below said cylindrical surface over each of the two end portions of said guide, said relieved surfaces being convex in sections perpendicular to the elements of said cylindrical surface and being concave in sections parallel to said elements.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Woven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
US465932A 1964-07-04 1965-06-22 Looms with means for correcting weft thread distortion Expired - Lifetime US3331402A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1964F0043348 DE1535423A1 (de) 1964-07-04 1964-07-04 Vorrichtung zur Herstellung schussfadengrader Gewebe
CH1531164A CH430609A (de) 1964-07-04 1964-11-27 Vorrichtung zur Herstellung schussfadengrader Gewebe

Publications (1)

Publication Number Publication Date
US3331402A true US3331402A (en) 1967-07-18

Family

ID=25716129

Family Applications (1)

Application Number Title Priority Date Filing Date
US465932A Expired - Lifetime US3331402A (en) 1964-07-04 1965-06-22 Looms with means for correcting weft thread distortion

Country Status (5)

Country Link
US (1) US3331402A (fr)
BE (1) BE666304A (fr)
CH (1) CH430609A (fr)
FR (1) FR1440292A (fr)
GB (1) GB1057964A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478142A (en) * 1965-09-07 1969-11-11 Phillips Petroleum Co Method of pleating and stretching plastic film
US3779286A (en) * 1972-10-02 1973-12-18 Sulzer Ag Method and apparatus for weaving terry cloth
US3860045A (en) * 1971-04-16 1975-01-14 Johnson & Johnson Preformed cross-laid fabric and method of manufacturing the same
US20040221908A1 (en) * 2002-08-02 2004-11-11 Mario Servalli Weaving machine with correction of the distortion of the weft
US6883555B1 (en) * 1999-12-16 2005-04-26 Textilma Ag Device for producing a tubular belt band that can be turned inside out
WO2006131324A3 (fr) * 2005-06-10 2007-05-10 Picanol Nv Machine a tisser les tissus eponge
US20090218001A1 (en) * 2006-09-13 2009-09-03 Picanol N.V. Fabric support for a weaving machine
CN101194059B (zh) * 2005-06-10 2012-06-20 必佳乐有限公司 毛圈织机
IT201900007545A1 (it) * 2019-05-30 2020-11-30 Textilma Ag Dispositivo tempiale per il controllo della tensione di un tessuto in una macchina tessile

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US545607A (en) * 1895-09-03 Loom for weaving valances
US587324A (en) * 1897-08-03 Loom for cross-weaving
US1132999A (en) * 1914-05-25 1915-03-23 Wilbur M Beers Pipe-hanger.
US1836309A (en) * 1929-10-23 1931-12-15 William R Cartwright Loom attachment
US2884015A (en) * 1953-10-22 1959-04-28 Bechter Hermann Tensioning roller for weaving looms

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US545607A (en) * 1895-09-03 Loom for weaving valances
US587324A (en) * 1897-08-03 Loom for cross-weaving
US1132999A (en) * 1914-05-25 1915-03-23 Wilbur M Beers Pipe-hanger.
US1836309A (en) * 1929-10-23 1931-12-15 William R Cartwright Loom attachment
US2884015A (en) * 1953-10-22 1959-04-28 Bechter Hermann Tensioning roller for weaving looms

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478142A (en) * 1965-09-07 1969-11-11 Phillips Petroleum Co Method of pleating and stretching plastic film
US3860045A (en) * 1971-04-16 1975-01-14 Johnson & Johnson Preformed cross-laid fabric and method of manufacturing the same
US3779286A (en) * 1972-10-02 1973-12-18 Sulzer Ag Method and apparatus for weaving terry cloth
US6883555B1 (en) * 1999-12-16 2005-04-26 Textilma Ag Device for producing a tubular belt band that can be turned inside out
US20040221908A1 (en) * 2002-08-02 2004-11-11 Mario Servalli Weaving machine with correction of the distortion of the weft
US7104286B2 (en) * 2002-08-02 2006-09-12 Sam Engineering S.A. Weaving machine with correction of the distortion of the weft
WO2006131324A3 (fr) * 2005-06-10 2007-05-10 Picanol Nv Machine a tisser les tissus eponge
CN101194059B (zh) * 2005-06-10 2012-06-20 必佳乐有限公司 毛圈织机
US20090218001A1 (en) * 2006-09-13 2009-09-03 Picanol N.V. Fabric support for a weaving machine
US7770605B2 (en) * 2006-09-13 2010-08-10 Picanol N.V. Fabric support for a weaving machine
IT201900007545A1 (it) * 2019-05-30 2020-11-30 Textilma Ag Dispositivo tempiale per il controllo della tensione di un tessuto in una macchina tessile

Also Published As

Publication number Publication date
FR1440292A (fr) 1966-05-27
CH430609A (de) 1967-02-15
BE666304A (fr) 1966-01-03
GB1057964A (en) 1967-02-08

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