US2106612A - Straightener for woven material - Google Patents

Straightener for woven material Download PDF

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Publication number
US2106612A
US2106612A US34932A US3493235A US2106612A US 2106612 A US2106612 A US 2106612A US 34932 A US34932 A US 34932A US 3493235 A US3493235 A US 3493235A US 2106612 A US2106612 A US 2106612A
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US
United States
Prior art keywords
light
frequency
members
weft
warp
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
US34932A
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English (en)
Inventor
Pierre Cramer W La
Francis B Menger
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US34932A priority Critical patent/US2106612A/en
Priority to US92416A priority patent/US2106611A/en
Priority to FR809024D priority patent/FR809024A/fr
Priority to DEA80166D priority patent/DE674750C/de
Priority to FR48647D priority patent/FR48647E/fr
Application granted granted Critical
Publication of US2106612A publication Critical patent/US2106612A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H3/00—Inspecting textile materials
    • D06H3/12—Detecting or automatically correcting errors in the position of weft threads in woven fabrics
    • D06H3/125—Detecting errors in the position of weft threads

Definitions

  • Our invention relates to apparatus employed in the manufacture of woven material and more particularly to that part of such apparatus by which the desired angular relation between the warp and weft elements of the finished material is maintained.
  • One object of our invention is to provide apparatus which will automatically respond to a Very small amount of skew in the material. Another object is to provide apparatus which in response to a skewing of the material will automatically effect a straightening thereof thereby removing the skew.
  • Fig. 1 is a combined plan view of an embodiment of our invention, with parts broken away, and a circuit diagram;
  • Fig. 2 is an enlarged detail view of a portion of the apparatus shown in Fig. 1;
  • Fig. 3 is an end view of Fig. 2; and
  • Figs. 4 and 5 are detail views drawn at a still larger scale showing portions of the woven material and the light slits.
  • a length of woven material such for example as cloth, as it proceeds in the direction of the arrow from the entering end of the tenter.
  • the tenter chains which are employed in connection with looms for weaving cloth to stretch the cloth laterally.
  • the tenter is represented as comprising the two endless chains 2 and 3 each of which passes over the end pulleys 4 and 5, the latter being suitably driven by the electric motor 6 through the shafts terial I.
  • skid I! Arranged beneath the material and intermediate the edges thereof is the skid I! over which the material passes and which is slightly higher than the edge portions thereof engaged by the tenter.
  • the skid I1 is shown supported by the pillar blocks [8 which also support the short stub shafts I 9 which form bearings for the ro- 0 tatable drum 2!].
  • Each stub shaft l9 also supports a small incandescent lamp 2
  • the rotatable drum 20 is provided with two series of light openings 22 opposite of each of which is secured the small cylindrical lens 23 by which the light beam passing through each opening 22 is drawn down to a very narrow beam at the point where it passes through the material I.
  • the housing 28 containing the two concave mirrors 29 and the two photoelectric tubes 30 arranged in a suitable housing 3
  • the housing 28 is provided with the two rollers 32 by which the woven material is held against the skid H.
  • the drum 20 is rotated from the shaft 34, the drum and the shaft being provided respectively with the gear 35 and the pinion 35.
  • each rectifier is connected to supply current to a resistor 43 the resistors having a common intermediate point which is connected to a common intermediate point of the rectifiers.
  • the rectifiers are arranged reversely with respect to each other whereby the currents therefrom pass through the resistors 43 in opposite directions.
  • An automatic straightener for woven material comprising a light source, means for directing a narrow beam therefrom on said material, means for moving said beam in a path inclined to the warp elements of the material, a photoelectric device arranged to receive said beam interrupted by the weft elements of the material, means for moving one edge of said material relative to the other and frequency responsive means connected with said photoelectric device for controlling said moving means.
  • An automatic straightener for moving woven material comprising a light source, means for directing a plurality of narrow beams of light therefrom on said material, means for moving each of said beams in a path inclined at the same angle with reference to the warp elements of said material, the inclination of the path of one beam being opposite to that of the other, a photoelectric device arranged to receive each beam interrupted by the weft elements of the material, means for advancing one edge of said ,means for supporting woven material having warp and weft members, means for moving a plurality of narrow light beams each for a predetermined distance over said material in paths inclined in opposite directions to one of said members and means operative in response to the difference in the number of interceptions of said beams by the other of said members to indicate skew in said d.
  • An automatic straightener for moving woven material comprising a member over which the material is drawn having a plurality of light slits therein inclined in opposite direction to the warp elements of the. material, a rotatable drum be-- low said member, light sources therein, said drum having a series of openings arranged to cooperate with each of said slits, optical means at said opening for focusing the light through said slits on said material to form narrow bands thereon at right angles to said warp elements, a photoelectric device arranged to receive the light of each band controlled by the passage of the weft elements of the material, a tenter chain arranged to engage the material at each side thereof, means for driving said chains and means controlled by the difierence in output frequency of said photoelectric devices for varying the relative speed of said tenter chains.
  • means for engaging the edges of woven material having warp and weftmembers to move the same means associated therewith for directing light on said material, a plurality of photoelectric devices arranged to receive light from the material, means for limiting the light received by each device from the material to a narrow beam moving in a direction inclined to one of said members, the inclination of the direction of movement of one beam being opposite to that of another beam and means responsive to the difference in output frequency of said photoelectric devices whereby the relative movements of said edges may be varied.
  • means for engaging the edges of a strip of woven material having warp and weft members to move the same means associated therewith for directing light on said material, a plurality of photoelectric devices arranged to receive light from the material, means for limiting the light received by each device from the material to a narrow beam moving in a path inclined to one of said members, the path of movement of one beam being displaced laterally of said strip from that of another beam and means responsive to the difference in output frequency of said photoelectric devices whereby the relative movements of said edges may be varied.
  • means for supporting a strip of woven material having warp and weft members a plurality of photoelectric devices, means for directing separate beams of light through said material into said devices, means for causing said beams to move relatively to said material in directions oppositely inclined to the edges of said strip whereby the beams are intercepted by said weft members, means including a reversible motor for advancing or retarding one edge of the strip relative to the other and means responsive to a difference in output frequency of said devices for controlling the direction of rotation of said motor.
  • tenter chains for engaging opposite edges of a strip of woven material having warp and weft members, a plurality of photoelectric devices, means for directing separate beams of light through said material into said devices, means for causing the beams to move relatively to said material in directions oppositely inclined to the edges of said strip whereby the beams are intercepted by said weft members, means for driving said tenter chains, a differential gear for varying the relative speeds thereof, a reversible motor connected to control said gear and means responsive to a difference in output frequency of said photoelectric devices for con trolling the direction of rotation of said motor.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US34932A 1935-08-06 1935-08-06 Straightener for woven material Expired - Lifetime US2106612A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US34932A US2106612A (en) 1935-08-06 1935-08-06 Straightener for woven material
US92416A US2106611A (en) 1935-08-06 1936-07-24 Apparatus for correcting skew and bow in woven material
FR809024D FR809024A (fr) 1935-08-06 1936-08-06 Perfectionnements à la fabrication des tissus
DEA80166D DE674750C (de) 1935-08-06 1936-08-07 Steuereinrichtung zur selbsttaetigen Ausrichtung gewebter, lichtdurchlaessiger Stoffbahnen fuer Spannrahmen oder aehnliche Maschinen
FR48647D FR48647E (fr) 1935-08-06 1937-07-20 Perfectionnements à la fabrication des tissus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34932A US2106612A (en) 1935-08-06 1935-08-06 Straightener for woven material

Publications (1)

Publication Number Publication Date
US2106612A true US2106612A (en) 1938-01-25

Family

ID=21879539

Family Applications (1)

Application Number Title Priority Date Filing Date
US34932A Expired - Lifetime US2106612A (en) 1935-08-06 1935-08-06 Straightener for woven material

Country Status (3)

Country Link
US (1) US2106612A (fr)
DE (1) DE674750C (fr)
FR (1) FR809024A (fr)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2546831A (en) * 1947-06-21 1951-03-27 Edward C Newell Method and apparatus for automatically making rectangular sheets of fabric
US2549605A (en) * 1945-04-16 1951-04-17 Hoe & Co R Register control device for web printing machines
US2580233A (en) * 1944-12-05 1951-12-25 John Dalglish Synchronized stenter drive
US2617483A (en) * 1947-10-08 1952-11-11 Donald C Porter Automatic electronic control mechanism
US2737700A (en) * 1952-02-19 1956-03-13 Tubular Textile Machine Corp Stripe matching machine
DE971494C (de) * 1953-02-03 1959-02-05 Famatex G M B H Verfahren zur Kontrolle des Schussfadenverlaufs in einer fortlaufend bewegten Gewebebahn
US2972794A (en) * 1958-05-23 1961-02-28 Cranston Print Works Co Weft straightener
US3041461A (en) * 1958-05-27 1962-06-26 Lindly & Company Inc Photo electric inspecting apparatus
US3077656A (en) * 1958-04-26 1963-02-19 Mahlo Heinz Photoelectric devices for indicating the lay of weft threads and for controlling weft straighteners
US3116621A (en) * 1960-09-02 1964-01-07 Fabric Res Lab Inc Fabric flaw detector
US3169193A (en) * 1960-03-26 1965-02-09 Barr & Stroud Ltd Photosensitive apparatus for sensing the orientation of fine mesh material
US3193688A (en) * 1960-12-22 1965-07-06 American Cloth Strait Company Photosensitive weft straightener and alignment detector
US3257563A (en) * 1962-10-22 1966-06-21 George J Laurent Photosensitive variable aperture scanning device
DE2318243A1 (de) * 1972-04-12 1973-10-18 Coltron Ind Verfahren und vorrichtung zum breitstrecken und korrigieren von stoffbahnen
USRE29267E (en) * 1972-04-12 1977-06-21 Coltron Industries, Inc. Apparatus for straightening fabric
FR2442294A1 (fr) * 1978-11-23 1980-06-20 Mahlo Gmbh & Co Kg Dispositif pour apprecier la position des fils de trame d'un le de produit textile en circulation
DE3015847A1 (de) * 1980-04-24 1981-10-29 Dixie-Union Verpackungen Gmbh, 8960 Kempten Verfahren und vorrichtung zum herstellen von vakuum-skin-verpackungen
US4378161A (en) * 1980-08-01 1983-03-29 Sw Industries, Inc. Optical sensing system for determining the angular orientation of weft threads
US4656360A (en) * 1984-10-19 1987-04-07 Sw Industries, Inc. Optical sensing system for determining the orientation of weft threads in a wide variety of fabrics
US4658144A (en) * 1985-07-17 1987-04-14 Levi Strauss & Co. System for alignment and feeding cooperating fabric parts in sewing operations
US5616826A (en) * 1994-06-04 1997-04-01 Orbisphere Laboratories Neuchatel Sa Photoacoustic analyzer and method
US6521906B1 (en) 1999-04-30 2003-02-18 Mahlo Gmbh & Co. Kg Method and apparatus for measuring the distortion angle of a strip of textile, wherein a sensor array scans at progressively altered angles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1109636B (de) * 1958-04-26 1961-06-29 Mahlo Heinz Dr Ing Vorrichtung zur Feststellung der Schussfadenlage in laufenden Gewebebahnen und zur Steuerung von Schussfaden-Richtapparaturen
DE1131635B (de) * 1959-03-10 1962-06-20 Martini & Cie Vorrichtung zum Geraderichten verzogener Schussfaeden
DE3717305C1 (de) * 1987-05-22 1988-07-28 Mahlo Gmbh & Co Kg Verfahren und Vorrichtung zur Messung der Schussfaden- oder Maschenreihenlage von Textilbahnen
DE19928986C2 (de) * 1999-04-30 2003-01-30 Mahlo Gmbh & Co Kg Verfahren zur Bestimmung des Verzugswinkels einer Textilbahn und Vorrichtung zur Durchführung dieses Verfahrens und Richtmaschine zum Spannen einer Textilbahn

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580233A (en) * 1944-12-05 1951-12-25 John Dalglish Synchronized stenter drive
US2549605A (en) * 1945-04-16 1951-04-17 Hoe & Co R Register control device for web printing machines
US2546831A (en) * 1947-06-21 1951-03-27 Edward C Newell Method and apparatus for automatically making rectangular sheets of fabric
US2617483A (en) * 1947-10-08 1952-11-11 Donald C Porter Automatic electronic control mechanism
US2737700A (en) * 1952-02-19 1956-03-13 Tubular Textile Machine Corp Stripe matching machine
DE971494C (de) * 1953-02-03 1959-02-05 Famatex G M B H Verfahren zur Kontrolle des Schussfadenverlaufs in einer fortlaufend bewegten Gewebebahn
US3077656A (en) * 1958-04-26 1963-02-19 Mahlo Heinz Photoelectric devices for indicating the lay of weft threads and for controlling weft straighteners
US2972794A (en) * 1958-05-23 1961-02-28 Cranston Print Works Co Weft straightener
US3041461A (en) * 1958-05-27 1962-06-26 Lindly & Company Inc Photo electric inspecting apparatus
US3169193A (en) * 1960-03-26 1965-02-09 Barr & Stroud Ltd Photosensitive apparatus for sensing the orientation of fine mesh material
US3116621A (en) * 1960-09-02 1964-01-07 Fabric Res Lab Inc Fabric flaw detector
US3193688A (en) * 1960-12-22 1965-07-06 American Cloth Strait Company Photosensitive weft straightener and alignment detector
US3257563A (en) * 1962-10-22 1966-06-21 George J Laurent Photosensitive variable aperture scanning device
DE2318243A1 (de) * 1972-04-12 1973-10-18 Coltron Ind Verfahren und vorrichtung zum breitstrecken und korrigieren von stoffbahnen
US3839767A (en) * 1972-04-12 1974-10-08 Coltron Ind Apparatus for straightening fabric
USRE29267E (en) * 1972-04-12 1977-06-21 Coltron Industries, Inc. Apparatus for straightening fabric
FR2442294A1 (fr) * 1978-11-23 1980-06-20 Mahlo Gmbh & Co Kg Dispositif pour apprecier la position des fils de trame d'un le de produit textile en circulation
DE3015847A1 (de) * 1980-04-24 1981-10-29 Dixie-Union Verpackungen Gmbh, 8960 Kempten Verfahren und vorrichtung zum herstellen von vakuum-skin-verpackungen
US4378161A (en) * 1980-08-01 1983-03-29 Sw Industries, Inc. Optical sensing system for determining the angular orientation of weft threads
US4656360A (en) * 1984-10-19 1987-04-07 Sw Industries, Inc. Optical sensing system for determining the orientation of weft threads in a wide variety of fabrics
US4658144A (en) * 1985-07-17 1987-04-14 Levi Strauss & Co. System for alignment and feeding cooperating fabric parts in sewing operations
US5616826A (en) * 1994-06-04 1997-04-01 Orbisphere Laboratories Neuchatel Sa Photoacoustic analyzer and method
US6521906B1 (en) 1999-04-30 2003-02-18 Mahlo Gmbh & Co. Kg Method and apparatus for measuring the distortion angle of a strip of textile, wherein a sensor array scans at progressively altered angles

Also Published As

Publication number Publication date
DE674750C (de) 1939-04-22
FR809024A (fr) 1937-02-22

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