US1854119A - Yarn, cord, thread, etc., and method of manufacturing same - Google Patents

Description

April 12, 1932. DOM ET AL 1,854,119

AND METHOD OF MANUFACTURING SAME YARN, CORD, THREAD, ETC

Filed Feb. 7, l

A :4 a b w avwembozs *v (0414 had! @Ucoz e1 heretofore, necessary of long fibres.

Patented Apr. 12, 1932 UNITED STATES PATENT OFFICE DUDLEY A. DOM, OF WYOMING, AND

WILLIAM J.

MOELLER, OF MOUNT HEALTHY, OHIO,

ASSIGNORS TO THE PHILIP CAREY MANUFACTURING COMPANY, A CORPORATION OF OHIO Application filed February 7, 1927.

Our invention relates to improvements in yarn, cord, thread, etc. and methods of manufacturing same.

By our invention we are enabled to produce a yarn, cord, thread, etc. having the necessary and desired strength that has heretofore only been obtained by the use of the highest grade These fibres have been, heretofore, after the required sorting, carding and spinning, made into yarns, cords, etc. for various uses including weaving. \Ve are enabled by our invention to avoid many of the steps in producing yarns, cords, threads, etc. of the required strength and size while utilizing a comparatively short and poor grade of fibres. \Ve have discovered that in felting fibres, such as is commonly done in the preparation or manufacture of paper and preferably While feltingthe same if we put in longitudinal flexible reinforcing means into the felted mass, we can by twisting such felted material of the required width, form a tile fabric therefrom.

yarn, thread, cord, etc. which has relatively considerable strength and is suitable for weaving into fabrics and the production of other products.

Our invention, while addressed to the production of yarns, thread, cord, etc. made from various suitable fibres, has been found particularly adapted to the production of mineral fibre, yarns, threads and cords suitable for weaving into fabrics, such as various asbestos fabrics, brake band linings, etc., using very short fibres such as heretofore have not been considered suitable for the formation of yarns, cords, etc. to be used in textile fabrics, because of their length'being too short to enable the required carding and spinning to form same.

We will describe our invention as applied to the production of a mineral fibre yarn such as asbestos yarn and the production of a tex- We take the ordinary used in the producasbestos fibres, commonly the pulp to make tion of asbestos paper from the felted asbestos paper and whilethe paper we insert into the mass a extendingilongitudi- We have found flexible reinforceis being formed reinforcement Serial No. 166,411.

ment can be inserted by using a comparatively fine open mesh linen or cotton fabric cut so that continuous threads of the fabric extend longitudinally of the felted sheet. This results in the production of an asbestos paper or felted sheet having in it a longitudinal flexible reinforcement. This sheet is then cut into strips of the required width, depending upon the size of the finished yarn or cord that is desired; the diameter of which is also affected by the thickness of the asbestos felted sheet that has been prepared. These strips, consisting of an asbestos felted sheet having a longitudinal reinforcement, are then twisted so as to form a yarn or cord by any suitable twisting apparatus, after which we preferably run them through rollers so as to compress the yarn. This finished yarn or cord is then ready for weaving or such use as may be desirable. For some purposes it may be desirable to have a metal core in the center of the yarn or cord, and where that is desirable we insert during the twisting operation, or just before the twisting operation, the metal core so that as the twisting operation is performed the felted mass is twisted around the metal core.

In the drawings,Fig. 1 shows diagrammatically an apparatus carrying outthe method referred to of producing the yarn, cord, thread, etc..and Fig. 2 shows an enlarged view of the finished product having a metal core which is not necessary for all purposes. Referring to the drawings, A are cylinders of a wet machine used in producing the felted paper. B is a roll or cylinder from which is fed a sheet of open mesh or loosely woven linen or cotton fabric so that as the asbestos felted sheet A 1 is formed the reinforcement B 1 of open I mesh or loosely woven fabric passes into and becomes a part of the felted sheet 1. C represents two of the drying rollers for the felted sheet 1 of which there are, of course, many, as is well known to anyone in the art of producing asbestos paper.

of asbestos paper passes between the. slitters DD where it is formed into tabs or strips F of the required width. It then passes through an opening or mouth spout so arranged so as to hold the same flat after which it is twisted The reinforced sheet by any suitable twisting apparatus (not shown While the strip is being twisted a wire may, if desired, be inserted. The finished yarn may be woven into fabric by 5 suitable weaving apparatus (not shown). In Fig. 2 the yarn or cord 3 is shown having the longitudinal reinforcement B 1 which is imbedded in the felted asbestos sheet A 1. In this figure is also shown the wire core G of suitable wire, but we would have it understood that for many purposes we do not use this core G but depend merely upon the reinforcement B 1 to give the necessary strength to the product. lVhere a relatively thick or heavy yarn or cord is desired, we may take a relatively wide tape of reinforced felted asbestos material and fold it longitudinally one or more times upon itself and then twist the folded tape to form the desired yarn or cord. While we have shown yarn or cord made by imbedding a woven fabric into an asbestos felted sheet, if desired, yarns or cords could be made by cementing to the surface of an asbestos felted sheet a reinforcement or by holding in contact with an asbestos felted sheet, a longitudinal reinforcei ent and twisting it into the yarn or threyd. This last named method would not be as satisfactory but would serve for some purposes. Claims:

1. The method of' manufacture of yarns, cords, etc. consisting in the formation of a felted paper-like strip having a woven reinforcement therein and twisting said strip to form said yarn, cord, etc.

2. A yarn, cord, thread, etc. comprising a paper-like strip of felted fibers, having a longitudinal woven reinforcement therein,

. twisted to the desired form. In testimony whereof, we have signed our names to this specification.

WILLIAM J. MOELLER. DUDLEY A. DOM.

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