US1161591A - Covering for textile-spinning rolls. - Google Patents

Description

H. E. BELL.

COVERING FOR TEXTILE SPINNING ROLLS.

APPLICATION FILED DEC. ll. I914.

Patented Nov. 23, 1915.

COLUMBIA PLANOGIAPH (IO-.WASHINGTON, n.

UNITED STATES PATENT OFFICE.

HARRY E. BELL, OF PHILADELPHIA, PENNSYLVANIA., ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO BELL-REEVES COMPANY, OF WILMINGTON, DELAWARE,

A CORPORATION OF DELAWARE.

COVERING FOR TEXTILE-SPINNING ROLLS.

Specification of Letters Patent.

Patented Nov. 23, 1915.

To all whom it may concern:

Be it known that I, HARRY E. BELL, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Coverings for Textile-Spinning Rolls, of which the following is a specification.

My invention relates to the operative covering means for the rolls or rollers employed in the art of spinning cotton, worsted and other threads; and the object of my invention is to provide an improved form of covering material for said rolls that will serve as the friction producing means; such covering being in the form of a seamless member made up of friction material having the desired resiliency, whereby the finished article will be of a character suitable to produce the work desired.

My improved composition of matter comprises comminuted leather and cork firmly bonded together by suitable cementing material; such composition of matter being subsequently shaped into the desired form to be placed upon the various forms of spinning and drawing rolls.

These and other features of my invention are more fully described hereinafter, reference being had to the accompanying drawings, in which;

Figure 1, is a perspective view of a section of the improved composition of matter forming the subject of my invention; Fig. 2, is a perspective view of a block of the same from which the cots or tubes employed for the spinning rolls are shaped; Fig. 3 is a detached perspective view of a finished cot or tube; Fig. 4, is a perspective view showing the cot or tube illustrated in Fig. 3, applied to one form of spinning roll; Fig. 5, is an end view of the same; Fig. 6, is a perspective view of another form of spinning roll or roller having a composition cot or tubular cover made in accordance with my invention; Fig. 7 is an end view of the same, and Fig. 8, is a perspective view of a worsted spinning roll; showing the use of strips of the improved composition of matter as the friction covering therefor.

The present practice of preparing spinning rollers is to cover the same with a section of cloth, and then to apply to such cloth a leather cot or tube made of a section of leather which must be seamed at one side in order to form the same into a tubular element. In the first place, the leather alone 1s not sufficiently resilient, and hence the interposed lining or layer of cloth must be employed which, owing to the heat engendered during the spinning process, dries out and becomes brittle and finally breaks up and drops away from the roller. Furthermore, cotton spinning rollers thus covered not only require expensive machinery but also experienced workmen to cover iem, and are subject to many disadvantages as well. The cloth covering on the rollers (owing to the weight used and the rubbing friction) becomes powdered, as noted above, and useless in a short time, and the leather cot or tube becomes rough. In the preliminary stages of this breaking up, the roller becomes uneven and is thereby unable to impart proper action or work upon the threads in process of being spun or drawn. Furthermore, the seaming of the leather sleeve or cot makes an objectionable ridge or line in the surface of the roller, and there is always the danger of the thread holding the cot or tube breaking and thereby causing the cot or tube to become loose, and in either case the roller must be re-covered, as any one of these things spoils the roller for the work for which it is intended.

In covering worsted rolls a strip of soft spongy leather is first placed around the face of the roller, and this soft or spongy strip is then covered with a strip of hard, firm leather. The soft leather is used for a cushion, and the hard leather for friction and wear. This form of roller requires a very heavy weight on each roller in order to get the necessary amount of drawing, and for that reason requires a considerable amount of horse power to run each spinning frame.

The object of my invention is to provide an improved covering for the rolls employed in spinning and drawing cotton, worsted, and other threads that avoids all of the defects and disadvantages of the old covering structures and provides an efiicient covering for the purpose desired. My improved covering is further a homogeneous body in a single piece, thereby avoiding the necessity of putting on two layers as is the common practice at the present time, or of employing a seamed tubular member as the friction-producing covering.

The improved composition of matter forming the subject of my invention and which I employ as a covering for spinning rollers of various kinds, consists principally of connnin ted leathegcork, united by a siiif'abIe cement. I may iise the leather and cork particles with any suitable cement that will hold them together while undergoing further processing, or I may employ a composition of matter in which, in addition to the particles of leather and cork, I employ a suitable or desirable proportion of Portland cement or equivalent material, and a suitable proportion of shellac or any other material having the same characteristics and of equivalent value for the purpose described.

The mass of material is properly mixed together and then pressed by hydraulic or other heavy pressure into mats of suitable dimensions and thickness, approximately one and one-eighth inches thick, or any other desired thickness, and these mats are baked under a suitable degree of heat. The mats thus prepared are cut into suitable strips for covering worsted rolls, and into blocks from which the cots or tubes for the spinning rolls may be shaped by suitable means.

In the drawings, 1 represents the material forming the subject of my invention, and 1 indicates the manner in which strips are cut from the same; which strips are applied to the form of roll shown in Fig. 8.

In Fig. 2, I Show a small block 1 from which the cots or tubes are formed or shaped by suitable tools; the dotted lines indicating one of such cots or tubes.

In Fig. 3, I have shown one form of the finished cot or tube, indicated at 2, and in Fig. 4, I have shown one form of spinning roller 3. upon which such cot or tube is mounted.

Fig. 5, shows an end view of the roller with the cot or tube mounted thereon.

In Fig. 6, I have shown another form of spinning roller 3 having a pair of the cots or tubes 2 mounted thereon, and in Fig. 7, I have shown an end View of such roller. These cots or tubes are shaped by suitable means, tools, or machinery from the blocks 1 shown in Fig. 2, and held to the roller by suitable glue or cement or other means.

In Fig. 8, I have shown another form of spinning roller indicated at 3 in which the edges of working surfaces of the rollers are covered with strips 1 of the improved composition of matter, such as indicated in Fig. 1, held to the roller by glue, cement or other suitable means.

\Vhen used in either form, the improved composition of matter forming the subject of my invention possesses more resiliency than the cloth or soft leather filler usually employed, and a better frictional surface than cots, tubes or other working surfaces for spinning rollers made of leather.

By my invention I am able to provide a single body as the covering member for the roller, avoiding the duplex or double covering commonly employed at the present time; the single covering of cork and leather composition having the desired resiliency and capable of performing in a better manner the function for which rolls of this character have been designed.

The practice at the present time in the use of these forms of spinning rolls is to provide weighting means whereby the rolls may be held so as to impart sufficient friction of tension to the fiber undergoing the spinning operation, but the improved covering devised by me produces so much more friction that it is ossible to reduce the amount of weight employed and thereby reduce the power required to drive the spinning rolls.

My improved composition of matter produces better work; has greater efficiency than the ordinary surfacing material for spinning rollers; is cheap to manufacture; requires less weight to secure the desired frictional engagement with the threads being spun; wears better, and can be readily renewed or replaced by any person, not requiring skilled workmen for such purpose.

I claim 1. As a new article of manufacture, a tubular seamless shell having a homogeneous body structure and forming a covering for a spinning roller, said shell consisting of granulated cork a filler of comininuted leather and a cementitious binding agent including Portland cement and shellac all condensed and united under heavy pressure.

2. The method herein described of forming tubular shells or coverings for spinning rollers and the like, said method consisting in uniting under heavy pressure a mass of granulated cork, comminuted leather and a cementitious binder including Portland cement and shellac; then subjecting the compacted mass to a baking temperature; and then turning out of the mass a resilient seamless covering of light weight and of homogeneous structure.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

HARRY E. BELL.

IVitnesses:

MURRAY C. BOYER, Jos. H. KLEIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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