US1814652A - Device for stretching fabrics widthwise - Google Patents

Device for stretching fabrics widthwise Download PDF

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Publication number
US1814652A
US1814652A US449030A US44903030A US1814652A US 1814652 A US1814652 A US 1814652A US 449030 A US449030 A US 449030A US 44903030 A US44903030 A US 44903030A US 1814652 A US1814652 A US 1814652A
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United States
Prior art keywords
rollers
stretching
fabric
curvature
roller
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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
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US449030A
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English (en)
Inventor
Weiss Hans
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.)
Benninger AG
Original Assignee
Firm Maschinenfabrik Benninger
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Publication date
Application filed by Firm Maschinenfabrik Benninger filed Critical Firm Maschinenfabrik Benninger
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Publication of US1814652A publication Critical patent/US1814652A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/06—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus
    • D06C3/067—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus by curved rollers

Definitions

  • WVhen a shrunk web of fabric impregnated with sodium lye, for stretching the same widthwise, is passed over rollers of this type, at the end of the series of rollers very often an unequal lateral stretching effect and a de fiection of the weft threads results ,for the followin reason:
  • the front rollers of the device for stretching the fabric widthW-ise due to its elasticity and the small initial internal stresses is-induced to positively follow the individual stretching roller elements and, consequently, it is uniformly stretched all over its entire width.
  • WVith increasing lateral stretching action the internal stresses of the fabric are increased and the moment that these stresses become greater than the adhesion of the fabric the latter begins to slip in the axial direction.
  • the axialslippage is greatest at the edges of the fabric, whilst the center thereof has no tendency to slip.
  • edge portions aresubjectedto less lateral stretching than the center portions of the web of fabric.
  • rollers of different character whereby either straight and curved rollers were arranged in a row, or else groups of rollers of 449,030, and in Germany May e, 1929.
  • the object of the invention is to obviate these drawbacks in that-according to the invention in a device for stretching fabrics widthwise the curvature of stretching rollers ofthe same character, the curvature being continuous all over the length of the roller, is gradually decreased from the entrance to the delivery end of the device.
  • the arangement is such that the rollers for thelateral stretching of the same character are combined into groups of stretchingrollers of equal curvature and betweeneach pair of adj acentgroups a middle roller is arranged which averages in curvature between the. curvatures of the adjacent rollers of the respective individual groups and formswithsaid rollers a group of three rollers of decreasing curvature with regard to therun' of the fabric Web, whereby a slightly conical drivin'g gear wheel is, provided at each endjof said middle roller.
  • rollers with an arrangement of a series of rollers with the curvature of the latter gradually decreasing from roller to roller all rollers may be provided with slightly conical driving gear wheels.
  • Fig. 1 shows a first constructional form the invention in plan view
  • Fig. 2 is an elevation of Fig. 1;
  • Fig. 3 shows asecond constructional form of the invention in plan view
  • Fig. 4 an elevation of Fig. 3.
  • the device for stretching fabrics widthwise shown in Figs. 1 and 2 comprises ten stretching rollers 1 to 10.
  • the first six rollers 1 to 6 from the entrance end of the device constitute a first group I and are all provided with the same relatively great continuous curvature which may be circular, parabolical or elliptical.
  • the three last rollers 8, 9 and are combined to a further group II of rollers of equal, but considerably smaller curvature than the rollers of the first group.
  • the axes of therollers are arranged in a zig-zag line, in known manner (see Fig. 2).
  • the transmission roller 7 between the groups I and'II has a curvature which is equal to the mean value of the curvatures of' the other rollers.
  • All the-rollers 1 to 6 and 8 to 10 are fixed on the machine frame in known manner and operatively connected with each otherby meansof spur gear wheels 11, whilst the roller 7 is provided with slightly conical. gear wheels 12.
  • the spur gear wheels 11 of rollerl as well as those of roller 9 eachmesh with a gear wheel 13- and 14 respectively having helical teeth, and being mounted in pairs on a common shaft 15 and 16 respectively, whereof the former is actuated by achain drive 17 and connected to the shaft 16' by a further chain drive 18.
  • the shafts 15. and 16 are mounted on the machine frame in known manner.
  • All the rollers 1' to .10 are composed of individual roller ele ments 19 rotatably arranged on the shaft of' the roller in a manner known per se. The direction of movement of the web of fabric through the device is indicated by the ar rows A.
  • the described device permits a. greater number of stretching rollers to be used in order to be enabled to obtain a thorough washing effect along a travel of considerable length of the web of fabric with the latter in stretched. condition without the quality of the fabric being impaired, such washing effeet being required for a com lete mercerization.
  • a gradual transition from the curvedl'entrance rollers to the straight delivery roller is brought about and the possibility of the structure of the web being brought out of shape at the delivery end is greatly reduced.
  • rollers of smaller curvature are naturally subjected to less strain and wear which is very advantageous for instance in mercerizing machines where the last rollers are entirely or in part im- Inersed in the liquid bath and thus are diflicult to be lubricated.
  • a series of rollers 1 to 10 of the same character and of gradually decreased curva ture in respect of the direction of movement of the fabric web, as indicated by the arrows A, are arranged behind each other.
  • the rollers are operatively connected with each other by slightly conical spur gear wheels 11 at each end thereof and the drive is imparted to the whole.
  • a series of stretching rollers of the same character and of continuous curvature said curvature of the rollers decreasing from the entrance end towards the delivery end of the device.
  • a plurality of individual groups of stretching rollers all rollers being of the same character and of continuous curvature and each group comprising rollers of equal curvature, a spur gear wheel at each end of each roller of each group, a roller arranged between each pair of adjacent individual groups, said middle roller averaging in curvature between the curvatures of the adjacent rollers of the respective individual groups and forming with said rollers a group of three rollers of decreasing curvature with regard to the run of the fabric web, and a slightly conical driving gear wheel at each end of said middle roller.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US449030A 1929-05-06 1930-05-01 Device for stretching fabrics widthwise Expired - Lifetime US1814652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1814652X 1929-05-06

Publications (1)

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US1814652A true US1814652A (en) 1931-07-14

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ID=7744439

Family Applications (1)

Application Number Title Priority Date Filing Date
US449030A Expired - Lifetime US1814652A (en) 1929-05-06 1930-05-01 Device for stretching fabrics widthwise

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US (1) US1814652A (enrdf_load_stackoverflow)
GB (1) GB351656A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594591A (en) * 1949-05-25 1952-04-29 Stevens & Co Inc J P Conveyer for feeding and spreading loose fiber into sheet form
US2626422A (en) * 1950-02-28 1953-01-27 Wingfoot Corp Lateral stretching of thermoelastic films
US2801727A (en) * 1952-12-30 1957-08-06 Malnati Cesare Conveyor of transversely varying width
US2856060A (en) * 1955-12-19 1958-10-14 Malnati Cesare Conveyor of transversely varying width
US3382553A (en) * 1965-03-24 1968-05-14 Deering Milliken Res Corp Apparatus to compact fabric
US3382552A (en) * 1965-03-24 1968-05-14 Deering Milliken Res Corp Process to compact fabric
US3596333A (en) * 1967-01-30 1971-08-03 Nippon Rayon Kk Apparatus for compressively shrinking woven textile fabrics
US4566154A (en) * 1983-08-02 1986-01-28 Scott Paper Company Nonwoven web spreader
US5152039A (en) * 1989-09-07 1992-10-06 Elitex Liberec Device for aligning wefts of moving textile web
CN112877970A (zh) * 2020-06-17 2021-06-01 国际竹藤中心 一种竹纤维束定向拉伸机

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594591A (en) * 1949-05-25 1952-04-29 Stevens & Co Inc J P Conveyer for feeding and spreading loose fiber into sheet form
US2626422A (en) * 1950-02-28 1953-01-27 Wingfoot Corp Lateral stretching of thermoelastic films
US2801727A (en) * 1952-12-30 1957-08-06 Malnati Cesare Conveyor of transversely varying width
US2856060A (en) * 1955-12-19 1958-10-14 Malnati Cesare Conveyor of transversely varying width
US3382553A (en) * 1965-03-24 1968-05-14 Deering Milliken Res Corp Apparatus to compact fabric
US3382552A (en) * 1965-03-24 1968-05-14 Deering Milliken Res Corp Process to compact fabric
US3596333A (en) * 1967-01-30 1971-08-03 Nippon Rayon Kk Apparatus for compressively shrinking woven textile fabrics
US4566154A (en) * 1983-08-02 1986-01-28 Scott Paper Company Nonwoven web spreader
US5152039A (en) * 1989-09-07 1992-10-06 Elitex Liberec Device for aligning wefts of moving textile web
CN112877970A (zh) * 2020-06-17 2021-06-01 国际竹藤中心 一种竹纤维束定向拉伸机

Also Published As

Publication number Publication date
GB351656A (enrdf_load_stackoverflow) 1931-07-02

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