US849812A - Drawing apparatus for spinning short-stapled fibers. - Google Patents

Description

PATENTED APR. 9, 1907.

. J. PERRIN. DRAWING: APPARATUS FOR SPINNING SHORT STAPLED FIBERS.

APPLICATION FILED APB.13,1905.

2 SHEETS-SHEET l.

PATENTED APR. 9', 1907.

. J. PERRIN. DRAWING APPARATUS FOR SPINNING SHORT STAPLED FIBERS.

APPLICATION IIIJD APR. 13,1905.

2 SHEETS-SHEET 2.

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JOSEPH PERRIN, OF COURS, FRANCE.

DRAWING APPARATUS FOR SPINNING SHORT-STAP LED FIBERS.

Specification of Letters Patent.

Application filed April 13, 1905. Serial No. 255,289.

Patented April 9, 1907.

To all whom it may concern:

Be it known that I, JosEPH PERRIN, a citizen of the French Republic, residing at Cours. in the Department of Rhone and Republic of France, have invented new and useful Improvements in Drawing Apparatus for Sping Short-stapled Fibers, of which the following is a specification. My inventlon relates to an apparatus for drawing textile fibers; and the principal object of theinventionis to provide for drawing short as well as long fibers by the same apparatus and to improve the quality of the yarn produced.

In the practice of cotton-spinning the yarn is gradually attenuated b being passed through a number of sets 0' drawing-rollers driven at different s eeds. The s ace between the initial rol ers and the ollowing lines of rollers is generally based, however, on the maximum length of the fiber. This space is ordinarily too wide to draw out the shorter fiber contained in the sliver and put it inparallel. order.

In carrying out my invention I aim to draw out and arrange in parallel order all of the fibers from the longest to the shortest, which constitute the sliver. I also aim to secure a much higher degree of attenuation than can be attained by the means ordinarily em loyed, so that further attenuation in the slu bing and roving frame becomes unneces- Iii the drawings, Figure 1 is a transverse sectional view of drawing-rollers embodying the principles of my invention. Fig. 2 is a top view of the same, some of the parts being removed. Fig. 3 is a sectional view taken in a plane at the right of the rollers in Fig. 1 looking toward the left. i

In carrying out my invention I make use of a porcupine-roller, the teeth of which are arranged to enga 'i and comb out the fibers of the sliver. I a so make use of corrugated drawing-rolls, so related to the porcu ineroller as to be capable of acting on the s ortest as well as the longest fibers.

Referrin to the drawings, 1 indicates a stationary Irame in the form of a solid cylindrical bar supported transversely inthe machine. I

2 indicate what I shall term subframes, of which there may be any number arranged at spaced intervals along the bar 1. Each of roller 11of small diameter and flutings upon its surface which enter the V spaces between the teeth of the porcu ineroller. 6 and 7 are calendering-rollers, aving a smooth surface and by which the sliver is engaged. All of these rollers 4, 5, 6, and 7 are sectional-that is to say, they extend between adjacent subframes 2, in which the sections are respectively journaled. In this way the various rollers virtually extend across the entire width of the machine, although the sectional parts thereof are entirely separate from one another and are all journaled in the subframes 2, so as to give greater rigidity to the rollers in s ite of their small diameter. The rollers 4 and 6 have pinions 9 and 10, which mesh with the gear 8 of their particular section. In'this way the rollers 4, 5, 6, and 7 may be of small diameter and delicate construction suitable to the shortest fibers of the sliver and at the same time have all requisite strength and rigidity by virtue of the sectional construction with supportingjournals spaced at short distances apart.

The drawing-rolls are indicated at 11, 12,

and 13 and may have roughened or corru gated surfaces for the'purpose of on aging the sliver more firmly. I prefer to ma e the sup orted at each of the subframes so as to have t e necessary stiffness and rigidity. By this construction the bight or point of drawing engagement of the rollers 11 and 13 is in very close proximity to the teeth of the orcu 'ine-roller 4, so that the shortest as we 1 as t e longest fibers are drawn out and laid in parallel order.

The operation is as follows: The sliver shown at 16 enters the apparatus through the eye 15, supported by the rod 14, and thence passes through the calendering-rollers 6 and 7. By this meansj-the sliver is somewhat flattened and passes into engagement with the teeth of the porcupine-roller,

being pressed into such relation by the fluted feeding-roller 5. The sliver finally enters and each having a gear, a air-of fluted feeding-rolls also composed o alined independent sections of very small diameter and closely adjacent to said porcupine-roller, said feeding-rolls also having gears thereon, a pair of drawingrol ls closely adjacent to said. orc'upine-roller and adapted to receive the s liver therefrom, said feeding-rolls and said drawing-rolls being disposed at opposite points on said porcupine-roller less than one hundred and eighty degrees a art whereby all ofthe rolls are very close y arranged together, and a shaft havin gears thereon arranged to positively drive aIl of said rolls.

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

two subscribing witnesses.

' JOSEPH PERRIN. Witnesses:

L. DEcHAnaNN, V. BLANO.

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