US2842934A - Stabilized multi-ply yarns - Google Patents

Stabilized multi-ply yarns Download PDF

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US2842934A
US2842934A US557912A US55791256A US2842934A US 2842934 A US2842934 A US 2842934A US 557912 A US557912 A US 557912A US 55791256 A US55791256 A US 55791256A US 2842934 A US2842934 A US 2842934A
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ply
twister
fibers
spool
stabilized
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US557912A
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Owens Robert Stuart
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Owens Robert Stuart
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Priority to US446505A priority Critical patent/US2842932A/en
Application filed by Owens Robert Stuart filed Critical Owens Robert Stuart
Priority to US557912A priority patent/US2842934A/en
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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00Textiles: spinning, twisting, and twining
    • Y10S57/902Reinforcing or tire cords

Description

STABILIZED MULTI-PLY YARNS Jul 15, 1958 original Filed July 29, 1954 Q 2 f g 1 t .1 g 19 e 20 Q11 a2 2a BY PASS TWISTER AND WINDER INVENTOR Robeftsfimi Owens ATTORNEY Unite STABTLHZED MULTll-PLY YARNS Robert Stuart Owens, Charlottesrille, Va.
Original application .luly 29, 1954, Serial No. 445,5ll5. Divided and this appiication January 9, 1956, Serial No. 557,912
2 Claims. (Cl. 7--153} The present invention relates to multi-ply yarns.
This application is a division of my pending application Ser. No. 446,505, filed July 29, 1954.
The particular object of the invention is to provide a mul'ti-ply yarn embodying two or more plies, each ply being coated with an elastomeric coating of such cohesiveness and tenacity as will bond the fibers together and the plies together to make a continuous stabilized yarn. Other objects will be apparent from the following description of the yarn and of an apparatus and method of making it.
In the accompanying drawings forming a part of this specification,
Fig. 1 is a diagram in the nature of a flow sheet showing how a nine-ply yarn is made from three strands each consisting of three fibers or filaments;
Fig. 2 is a diagrammatic view in side elevation of a bypass twister assembly such as may be used with the apparatus of Fig. 1; and
Fig. 3 is an enlarged sectional elevation-of a fragment of a yarn made in accordance with the invention.
Referring first to Fig. 1, nine spools lit-18 inclusive are shown from which nine fibers a, b, c, d, e, f, g, h, i are drawn by means of rotating tension rolls arranged in pairs, designated respectively 19, 2t) and 21. From the tension rolls the fibers pass to primer baths 22, 23, 24- respectively (if primer baths are necessary for the particular fiber being worked with), then the fibers pass to driers 25, 26, 27 respectively, and then to coating tanks 28, 29 and 30, respectively. After coating, the three fibers of each group are brought together by the corresponding twister eye 31, 32, 33, or in lieu of the twister eyes, the fibers of each group (abc) (def) (ghi) may be combined to form a single strand while traveling through an elongated drier (34, 35, 36) by the twisting action of a bypass twister 37, 38, 39. The preferred by-pass twister is shown in Fig. 2 and will be described hereinafter. The three three-ply twisted strands then pass into a single coating tank 40 to be coated, then they travel through a twister eye 41, and through a drier or vulcanizer to a level winder or by-pass twister 4-2 if the coated strand is to be united with other strands to form yarns containing more plies.
It should be explained that the continuous operation diagrammatically illustrated in Fig. 1 would not be possible unless means were provided to permit the coated and twisted strands to move beyond the by-pass -twisters 37, 38, 39 for subsequent treatment. Each by-pass twister functions as a fixed point, the other fixed points being the spools -18 in the creels. The twist is imparted by the rotation, in a horizontal plane, of spool 45 (Fig. 2). Referring again to Fig. 1, the tendency to untwist is overcome by setting the elastomeric resin of the coatings while the strands are under tension, and this setting takes place prior to the time that the coated strands reach the bypass twisters. The stress set up in the coating material States Patent which is bonded to the strand compensates for the forces which "tend to cause untwisting. The twisted coated strand on reaching spool 45 (Fig. 2) slips as it is pulled around the spool and in effect spool 45 acts as the initial fixed point together with the directional guiding sheaves 43 on top coating tank 46. Such an arrangement is only possible where the strands of a multi-ply yarn are firmly bonded and held in situ by a resin which possesses sufficient elasticity, tenacity and cohsesiveness to compensate for the tendencies of non-treated twisted strands to untwist.
in the arrangement of Fig. l, the twist imparted by by-pass twister or level winder 42 is the reverse of the twists imparted by by-pass twisters 3'7, .38, 39. Thus the primary plying imparts, let us say, an S-twist and then in one continuous operation a Z-twist is imparted in the secondary plying. Such an operation, it will be clear, is only possible when the strands of the primary plying are coated with an elastomer that has been bonded to the fibers. Furthermore, the elastomer must be set before the strands reach the twister or twister-winder 42 for the secondary plying. To accomplish the desired result, provision must be made to cause the yarn to slip around the twister spool 55 so that in effect the initial fixed point is transferred to the twister spool. In some cases it may be necessary to use a lubricant on the spool in order to insure this slippage.
The by-pass twisters, as shown in Fig. 2, each consist of an idler spool 45 about which coated strand 46 is wrapped at least one full turn, so that the idler spool is rotated on its axis, a plate 47 supporting spool 45 by means of bearings 48, 49, a hollow shaft 50 supporting plate 47, the coated strand 46 passing up through hollow shaft 5t), and gearing 5f, 52 driving the hollow shaft from a source of power (shaft 53). Spool 45 preferably is of least diameter at its middle and of greatest diameter at either end to cause the strand to return constantly to the middle of the spool as the strand travels in the direction indicated by the arrow.
The final product is shown in Fig. 3.
What I claim is:
l. A stabilized multi-ply yarn including a primary ply and a secondary ply, the twist of the secondary ply being the reverse of the twist of the primary ply; an elastomeric coating impregnating the primary ply and applied to the yarn fibers while the fibers are under tension, and said coating having an elasticity, cohesiveness and tenacity such as will bond the fibers together to completely check the tendency of the primary twist to unwind; and an elastomeric coating covering the secondary ply and uniting the two plies.
2. A stabilized multi-ply yarn including a primary ply and a secondary ply, the twist of the secondary ply being the reverse of the twist of the primary ply; a primer coating on the primary ply; an elastomeric coating adhered to the primary ply because of the primer coating and applied to the yarn fibers while the fibers are under tension, and said coating having an elasticity, cohesiveness and tenacity such as will bond the fibers and plies together to completely check the tendency of the primary twist to unwind.
References Cited in the file of this patent UNITED STATES PATENTS 2,020,907 Rubin Nov. 12, 1935 2,125,633 Harrison Aug. 2, 1938 2,364,135 Finlayson Dec. 5, 1944 2,590,586 Thompson Mar. 25, 1952
US557912A 1954-07-29 1956-01-09 Stabilized multi-ply yarns Expired - Lifetime US2842934A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US446505A US2842932A (en) 1954-07-29 1954-07-29 Apparatus and method for making twisted fiber products
US557912A US2842934A (en) 1954-07-29 1956-01-09 Stabilized multi-ply yarns

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US557912A US2842934A (en) 1954-07-29 1956-01-09 Stabilized multi-ply yarns

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029590A (en) * 1958-12-30 1962-04-17 Owens Corning Fiberglass Corp Extensible fibrous glass textile strand structure and method of making same
US3348368A (en) * 1964-07-23 1967-10-24 Leesona Corp Method and apparatus for processing glass yarn
US3371476A (en) * 1965-04-02 1968-03-05 Gen Motors Corp Glass plastic rope
US3738096A (en) * 1970-11-09 1973-06-12 Ashaway Line & Twine Mfg Manufacture and construction of strings
US3772871A (en) * 1970-11-13 1973-11-20 Fiverel Glass reinforcement cords
US3908351A (en) * 1973-12-27 1975-09-30 Ppg Industries Inc Novel tire cord forming process
EP0049196A1 (en) * 1980-09-26 1982-04-07 Cousin Freres S.A. Strings of synthetic materials for tennis rackets
EP0125953A1 (en) * 1983-04-14 1984-11-21 Cousin Freres S.A. Method of making a cord of several components
EP2017093A2 (en) * 2007-07-20 2009-01-21 Sumitomo Rubber Industries, Ltd. Pneumatic tire

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020907A (en) * 1933-02-20 1935-11-12 American Silk Mills Inc Yarn and the fabric produced therefrom
US2125633A (en) * 1937-01-09 1938-08-02 Paul E Harrison Method of making tire cord
US2364135A (en) * 1940-07-26 1944-12-05 Celanese Corp Sewing thread
US2590586A (en) * 1951-11-21 1952-03-25 Heminway & Bartlett Mfg Co Fish net formed of synthetic resin strands and strands therefor and method of producing same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020907A (en) * 1933-02-20 1935-11-12 American Silk Mills Inc Yarn and the fabric produced therefrom
US2125633A (en) * 1937-01-09 1938-08-02 Paul E Harrison Method of making tire cord
US2364135A (en) * 1940-07-26 1944-12-05 Celanese Corp Sewing thread
US2590586A (en) * 1951-11-21 1952-03-25 Heminway & Bartlett Mfg Co Fish net formed of synthetic resin strands and strands therefor and method of producing same

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029590A (en) * 1958-12-30 1962-04-17 Owens Corning Fiberglass Corp Extensible fibrous glass textile strand structure and method of making same
US3029589A (en) * 1958-12-30 1962-04-17 Owens Corning Fiberglass Corp Extensible fibrous glass textile strand and method of producing same
US3348368A (en) * 1964-07-23 1967-10-24 Leesona Corp Method and apparatus for processing glass yarn
US3371476A (en) * 1965-04-02 1968-03-05 Gen Motors Corp Glass plastic rope
US3738096A (en) * 1970-11-09 1973-06-12 Ashaway Line & Twine Mfg Manufacture and construction of strings
US3772871A (en) * 1970-11-13 1973-11-20 Fiverel Glass reinforcement cords
US3908351A (en) * 1973-12-27 1975-09-30 Ppg Industries Inc Novel tire cord forming process
EP0049196A1 (en) * 1980-09-26 1982-04-07 Cousin Freres S.A. Strings of synthetic materials for tennis rackets
EP0125953A1 (en) * 1983-04-14 1984-11-21 Cousin Freres S.A. Method of making a cord of several components
EP2017093A2 (en) * 2007-07-20 2009-01-21 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US20090020208A1 (en) * 2007-07-20 2009-01-22 Sumitomo Rubber Industries,Ltd. Pneumatic tire
EP2017093A3 (en) * 2007-07-20 2009-10-14 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US8104525B2 (en) 2007-07-20 2012-01-31 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US8622105B2 (en) 2007-07-20 2014-01-07 Sumitomo Rubber Industries, Ltd. Pneumatic tire

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