US15703A - Improved process of manufacturing delaines - Google Patents

Description

UNITED STATES PATENT OFFICE.

JOHN MARLAND, on WEST BRID GEWATER, MASSACHUSETTS.

IMPROVED PROCESS OF MANUFACTURING DELAINES.

Specification forming part of Letters Patent No. 15,703, dated September 9, 1856. 7

To all whom it may concern:

Be it known that 1, JOHN MARLAND, of West Bridgewater, in the county of Plymouth and State of Massachusetts, have invented a new and improved method of preparing and working wool for the manufacture of delaines and other similar fabrics, of which the following is a full, clear, and exact description.

Yarn spun from carded wool, owing to the knots and other impurities which still remain in it, and which are never entirely eradicated by the card, are destitute of that evenness of size and uniformity of texture necessary to render it fit for the manufacture of thin and highly-finished fabrics. On this account it becomes necessary to, manufacture such .goods of worsted yarn, which is spun from combed wool and possesses the desired evenness and uniformity. These fabrics, however, when manufactured entirely of worstedyarn, owing to the straightnessand parallelism of the fibers, have a harshness of feel and .of the other. I

My process may be employed either for the purpose of extracting and utilizing a portion of the wool heretofore left in the noil after the longer fibers are taken out by combing; or it may be applied to shorter-stapled Wool, nearly the whole of which may thereby be rendered available for the manufacture of soft and even yarn. c

,To enable others skilled in the art to understand my invention, I will proceed to describe the manner in which I have carried it out.

Where long-stapled wool is employed, the

longest fibers are combed out for the production of worsted yarn,and a large portion of the shorter wool remains behind in the noil, and

I with it is devoted to the manufacture of fabrics of an inferior quality. To render available this is withdrawn, I subject the noil to a second draft, with rollers placed much nearer to the comb-teeth than those'which withdraw the long fibers, by which means this shorter staple is drawn out and freed entirely from knots, the impurities and very short and tangled fibers only remaining behind as noil. The straight ened and combed wool thus obtained by this second draft is now submitted to the second step of my process, which consists in carding it upon any ordinary carding-engine, and from the sliver thus produced an exceedingly fine and uniform yarn may be spun, which at the same time possessesthe softness and pliancy of yarn manufactured of carded wool, and the evenness and uniformity of thread possessed by worstedyarn. The same result follows where a short-staple wool is operatedupon. I11 such case it is first combed upon'any ordinary combing machine, the drawing rolls being placed, as before, so near to the comb-teeth as to Withdraw all thefibers of a length which it is desirable to extract, the very short fibers and the impurities only remaining in the comb as noil. as before, passed through an ordinary cardingengine, and the yarn spun from the resulting sliver, as in the former case, is at the, same time soft and even.

By the above-described process of treating wool a yarn is produced of a quality superior to any before manufactured, at the same time that a great economy of material is effected, as a lower grade of wool may be employed to produce the same size of yarn; or where very long-staple wool is used, the longest fibers may be extracted for the manufacture of worsted,

and a large amount of the fiber heretofore al-. lowed to remain in the noil utilized and employed in the finest fabrics.

What I claim as myinvention, and desire to secure by Lettefs Patent, is

The within-described method of operating JOHN MARLAND.

Witnesses:

SAM. COOPER, P. E. TESOHEMAOHER.

The fibers thus extracted are then,