Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS2335644 A
Publication typeGrant
Publication dateNov 30, 1943
Filing dateMay 27, 1942
Priority dateMay 27, 1942
Publication numberUS 2335644 A, US 2335644A, US-A-2335644, US2335644 A, US2335644A
InventorsWilliam M Camp
Original AssigneeClark Thread Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Composite strand material
US 2335644 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

1\Iw.3o,1943.y w. M. CAM'P y, Q 2,335,644

COMPOS ITE STRAND MATERIAL Filed May 27, 1942 A a INVENTR. I/////am M Camp ATTOHIVEYJ Patented Nov. l30, 1943 JOMPOSITE STRAND MATERIAL William liI. Camp, Glen Ridge, N. J., assignor to The Clark Thread Company, Newark, N. J., a` corporation of New Jersey Application May 27. 1942, serial No. 444,731 z claims. (ci. isi-14o.)

'This invention relates to composite strand inaterial adapted for use as thread cord and the like.

The problem to which the invention is primarilyy directed is the conversion of thread or cord made from abrasion-susceptible material into strand materialresistant to abrasion and possessing generally properties enabling it to withstand successfully the demandsand criteria of a successful sewing thread.

Wrapped core is then subjected to a treatment to impregnate and coat the wrapping and bond it to the core by means of a film-forming adhesive 3. For this purpose, flexible film-forming adhesives in general may be used. It is necessary for the wrappings to be bonded properly to the core, otherwise they slip and pile up in one place on the core and cause failure in sewing. While, as

n stated, flexible nlm-forming adhesive in general Yarn made of glass and certain organic -synv thetic fibers, e. g., those. made from vinyl polymers, have valuable properties and numerous at.- tempts have been made to manufacture thread cord and the like therefrom. They also possess, however, certain disadvantages which make it diiiicult to utilize such yarns in making sewing Y thread. y The chief disadvantage is brlttlene'ss andv Asusceptibility to abrasion. l

Sewing thread is subject to very severe conditions in use. For example. it passes through the eye of the needle at a vsharp angle and in frictional contact with the edges of the hole. It must therefore be highly flexible and resistant to abrasion. Threads made of glass yarn, for example, are, as such, not entirely satisfactory because of their susceptibility to abrasion and brittleness. In other words, their resistance to abrasion is very low and their brittl'eness very high.

The principle of the present invention will be 'illustrated by reference to the accompanying drawin. in which: v

Fig. 1 shows a thread. cord or the like made from glass yarn; -f

Fig. 3 shows this cord provided with a wrapping of cottonsilk or other abrasion resistance material;

Fig. 5 shows the wrapping coated and impregnated and bonded to the core by means of a nlmforming adhesive:

F18. 'l .shows the product of liig. 5 provided y with s friction reducing coating:

Figs. 2. 4. 8, and. 8 are transverse sections corresaonding to Figs. l, 3, 5, and 7, respectively: Van

liig. 9 is a longitudinal sectional view of the product illustrated in Fis'. '7.

The core I istwisted from glass or other yarn so low in abrasion resistance as to be incapable of use per seas 4sewing material. This core is thenprovided with wrappings 2, e.'g., of the di agonai type of strand material highly resistant to abrasion, e. g.. cotton, silk, nylon. .The

may be used, those which are light colored and do not interfere with desired dyeing operations are preferred, e. g., latex, polyvinyl alcohol, hydrolized cellulose acetate, starch.

The coating, impregnation and bonding of the `wrapping to the core may be accomplished by passing the wrapped core through a bath' of the adhesive dissolved or dispersed in asuitable menstruum, aqueous or'non-aqueous, depending on the nature of the adhesive.. Those specifically above listed are dispensible in an aqueous medium.

Attempts to solve the problem by relying on such film-forming substances applied tothe core without the wrapping provide some improvement but are not satisfactory .to produce thread for sewing all types of fabrics. It is necessary to use both the wrapping and adhesive" and to' bond the former securely to the core in order to get sufiicient abrasion resistance and strength to meet this necessary criteria.

Finally, in order to reduce friction, a frictionreducing nish coat I is preferably applied, e. g.,

a wax.

I claim:

l. Composite strand material adapted for use as thread, cord and the like comprising score of twisted glass yarn: a wrapping'y of abrasionresistant strand material covering said core; said wrapping being impregnated and coated andv bonded to the core with a nlm-forming adhesive,

and a friction-reducing coating on thesurface of said coated and impregnated wrapping.

2. Composite strand material adapted for use as thread. cord and the like comprising a core of twisted yarn susceptible to abrasion when used in sewing; a wrapping of abrasion-resistant 'strand material covering said core; said wrapping being impregnated and coated and bonded to the core with a film-forming adhesive, and al friction-reducing coating on'the surface of said coated vand impregnated wrapping.

' IWILLIAM M. cAMP.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2448782 *May 14, 1945Sep 7, 1948Davis Archibald HComposite strand and fabric
US2573361 *Feb 13, 1947Oct 30, 1951Libbey Owens Ford Glass CoTorsion transmitting glass shaft and method of manufacture
US2631463 *Nov 12, 1946Mar 17, 1953Dayton Rubber CompanyCord belt
US2649833 *Apr 14, 1949Aug 25, 1953Ashaway Line & Twine MfgManufacture of lines for racquets
US2735258 *Aug 9, 1951Feb 21, 1956 Manufacture and construction of
US2861417 *Jun 16, 1954Nov 25, 1958Ashaway Line & Twine MfgManufacture of strings and the construction thereof
US3064414 *Mar 14, 1960Nov 20, 1962Akira UsniMethod of producing wirecord for heavy-duty rubber products
US3273978 *May 9, 1962Sep 20, 1966Kleber ColombesReinforcing element
US3495646 *Feb 21, 1968Feb 17, 1970Owens Corning Fiberglass CorpReinforcement for vulcanized rubberlike products and method of making same
US4936085 *Jun 13, 1989Jun 26, 1990Kolmes Nathaniel HYarn and glove
US5113532 *Mar 8, 1991May 19, 1992Golden Needles Knitting & Glove Co., Inc.Method of making garment, garment and strand material
US5177948 *Jan 15, 1992Jan 12, 1993Kolmes Nathaniel HYarn and glove
US5224363 *Jun 27, 1991Jul 6, 1993Golden Needles Knitting & Glove Co., Inc.Method of making garment, garment, and strand material
US5230033 *Nov 1, 1984Jul 20, 1993Optelecom, Inc.Subminiature fiber optic submarine cable and method of making
US5423168 *Jan 16, 1991Jun 13, 1995Kolmes; Nathaniel H.Surgical glove and yarn
US5628172 *Aug 31, 1994May 13, 1997Nathaniel H. KolmesComposite yarns for protective garments
US5655358 *May 8, 1995Aug 12, 1997Kolmes; Nathaniel H.Cut resistant support yarn suitable for wrapping with an additional yarn covering
US5845476 *Jun 4, 1997Dec 8, 1998Kolmes; Nathaniel H.Composite yarn with fiberglass core
US6413636 *Dec 2, 1999Jul 2, 2002Mark A. AndrewsProtective yarn
US6779330Oct 31, 2000Aug 24, 2004World Fibers, Inc.Antimicrobial cut-resistant composite yarn and garments knitted or woven therefrom
US7121077Apr 5, 2004Oct 17, 2006World Fibers, Inc.Antimicrobial cut-resistant composite yarn and garments knitted or woven therefrom
US20040187471 *Apr 5, 2004Sep 30, 2004World Fibers, Inc.Antimicrobial cut-resistant composite yarn and garments knitted or woven therefrom
USRE38136 *Aug 12, 1999Jun 10, 2003Supreme Elastic CorporationCut resistant support yarn suitable for wrapping with an additional yarn covering
DE1111464B *Jul 9, 1953Jul 20, 1961Willy SuhnerBiegsame Welle mit Zentralkoerper
Classifications
U.S. Classification57/229, 57/234
International ClassificationD07B1/02
Cooperative ClassificationD02G3/46, D07B1/162, D07B5/005, D07B1/16, D02G3/185, D07B1/02
European ClassificationD02G3/18B2, D02G3/46, D07B1/02, D07B1/16B, D07B1/16, D07B5/00C