US1003572A - Tuft-yarn needle. - Google Patents

Description

H. WYMAN, J. A. CLARK & J. G. SODERBERG.

TUFT YARN NEEDLE.

A1PLIGATION IILED PEBJB, 1910.

Patented Sept. 19, 1911.

r V MW COLUMBIA PLANOGRAPH CO" WASHINGTON, D. C.

UNITED STATES PATENT OFFICE.

HORACE WYMAN, JOHN A. CLARK, AND JOHN G. SODERBERG, OF WORCESTER, MASSA- CHUSETTS, ASSIGNORS TO CROMPTON & KNOWLES LOOM WORKS, .A. CORPORATION OF MASSACHUSETTS.

TUF-T-YARN NEEDLE.

To all whom it may concern:

Be it known that we, HORACE VVYMAN, JOHN A. CLARK, and JOHN G. SODERBERG, citizens of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have ointly invented certain new and useful Improvements in Tuft-Yarn Needles, of which the following is a specification.

Our invention relates to tuft yarn needles used in looms for weaving tufted fabrics of the class shown and described in U. S. Letters Patent, No. 446,402.

In looms of the class referred to, the tuft yarn needles extend in a vertical direction, and are connected with a jacquard selecting mechanism, and dropped at the desired time to carry the warp yarn into the warps. In said patent, tubular tuft yarn needles are shown and described, and the object of our invention is to improve upon the construction of the tuft yarn needles shown and described in said patent.

Our invention consists in certain novel features of construction of our improvements as will be hereinafter fully described.

We have only shown in the drawing the portion of a tuft yarn needle which embodies our improved construction, sufficient to enable those skilled in the art to understand the nature of our improvements.

Referring to the drawing :Figure 1 shows a tuft yarn needle of our improved construction with the yarn therein. Fig. 2 shows the opposite side of the needle shown in Fig. 1. Fig. 3 shows, on an enlarged scale, a detached portion of the tuft yarn needle shown in Fig. 1, without the tuft yarn. Fig. 4 is a longitudinal section, on line 4, 4, Fig. 1, looking in the direction of arrow a, same figure. Fig. 5 shows the re verse side of the needle shown in Fig. 3, looking in the direction of arrow I), Fig. 4. Fig. 6 corresponds to Fig. 5, but shows the covered strip or plate at the lower part removed. Fig. 7 is a longitudinal section, on line 7, 7, Fig. 6, looking in the direction of arrow 0, same figure, and, Fig. 8 is a longitudinal section through the cover plate shown in Fig. 5, detached.

In the accompanying drawing, the tuft yarn needle consists of the fiat wire 1, having elongated openings or eyes 2 therein, at certain intervals, through which the tuft yarn 3 is threaded. The tuft yarn 3, shown Specification of Letters Patent.

Application filed February 18, 1910.

Patented Sept. 19, I911.

Serial No. 544,633.

in Figs. 1 and 2, is brought from the creel, not shown, to the upper opening 2, and is threaded back and forth through the openings or eyes 2 in the needle, toward the lower end, where the yarn 3 enters through the opening 2 into a tube 1, and emerges at its extreme lower end 1, to be drawn out to form the tuft on the fabric. The space between two adjacent eyes 2 on the side of the needle along which the yarn 3 alternately passes, is preferably made recessed, as shown at 2*, making a groove or recess through which the tuft yarn 3 passes, and the sides of the groove act as a guard to protect the tuft yarn from being chafed or rubbed, as the sets of needles are moved back and forth past each other. lower opening 2 the tuft yarn 3 enters the tubular portion 1, which in this instance is made by covering a flat and recessed portion 1, see Fig. 4, with a strip or plate 1", of thin sheet metal, which is preferably secured at its ends by solder, on the flat wire forming the needle.

The tubular part 1 has enlargements, see Figs. 4, and 7, in which are retaining devices for the yarn 3, which devices in this instance consist of spring blades 4, extending in the direction of the length of the tube, and riveted at their upper ends to the recessed part 1 and also of spring blades 5 extending in the direction of the length of the tube 1, and riveted at their upper ends to the cover strip 1*. The free ends of the spring blades 4 and 5 are preferably made with teeth or serrated, as shown at 4 in Fig. 6. There are in this instance two pair of spring blades 4 and 5, although in some instances a single blade may be advantageously used. The blades act to hold the yarn as it is drawn down through the tube 1, and prevent it from being displaced. The enlargements of the tubular part 1, which contain the spring blades 4 and 5, gives a free passage, of the size of the tubular part 1, within said enlargement-s for the yarn 3, as it is drawn through the tube, between the spring blades 4, and 5.

In order to thread the tuft yarn 3 readily, the operator is preferably provided with a long wire hooked at one end, which after the yarn has been passed through the openings 2, is attached to the end of the yarn and inserted into the opening 2", and pushed through the tube 1,

At the v between the springs 4 and 5, and out through the lower end 1 of the tube, which is made with an open mouth in the direction of its length for the free passage of the wire and its attached yarn. I

By the construction of the needle as above described, there is a continuous passage from the upper opening to theextreme lower end of the tube 1, protected by the sides of the groove and the tubular part, whereby the yarn can be freely drawn through the needle 1, and subject only to the retaining actions of the springs 4tand 5.

The advantages of our improvements in tuft yarn needles will be readily appreciated by those skilled in the art.

The pressure of the blades upon the yarn not only causes friction thereon, but also, by the embedding of the serrated or toothed ends of the blades in the yarn, they act to positively hold the yarn from moving back- 1 ward, when the downward movement of the needles, as they are being inserted into the warp, turns the spools by the backward pull on the yarn, and deliver from the spools, yarn for the next row of tufts, all as shown and described in U. S. Letters Patent, No; 466,402, above referred to. After the ends 'of the yarn are interwoven into the fabric, an upward movement of the needle, draws a suitable length of yarn for the next tuft, through the needle, the yarn passing freely between the ends of the blades, after which the tuft yarns are cut off in the usual way. The ofiice of the blades 4 and 5 is to permit the yarn to be fed or moved only in a downward direction, thereby delivering anaccurate length of yarn at each operation. 7

It will be understood that the details of construction of our improvements may be varied if desired.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is 1. A tuft yarn needle for looms for weaving tufted fabrics, comprising a flat metal strip having a series of openings or eyes therethrough for the tuft yarn, which is threaded through said openings on oppositesides, and a tubular portion at its lower end, and retaining or friction devices for the yarn, comprising spring blades arranged in one or more pairs within the tubular portion, to retain the tuft yarn in a central position within the tube. I 2. A tuft yarn needle for looms for weaving tufted fabrics, comprising a flat metal strip, having openings or eyes therethrough for the tuft yarn, and a tubular portion at its lower end, and'spring blades within the tubular portion for holding the tuft yarn.

, 3. A tuft yarn needle for looms for weaving tufted fabrics, having a flattened tubular portion at its lower end, with one or more blades therein, adapted to press upon and engage with the free end of the tuft yarn passing under it, when the yarn is moved backward, and an enlarged space on said needle for said blades.

4. A tuft yarn needle for looms for weavjing tufted fabrics, having a flattened tubuilar portion at its lower end, with one or jmore pairs of spring blades therein, adapted .to engage with their free ends a tuft yarn ipassing under them, and retain it from a backward movement, and an enlarged space ion said needle for said blades.

5. A tuft yarn needle for looms for weavf ing tufted fabrics, having a flattened tubular' portion at its lower end, with spring :blades therein, adapted to retain a tuft yarn passing between them, to prevent it from being drawn backward, and having its extreme lower end and open mouth in the direction of the length of the needle.

6. A tuft yarn needle for looms for weavingtufted fabrics, having a flattened tubular portion at its lower end, and an enlarged portion for spring blades, adapted to hold the tuft yarn between them, to prevent it from moving, except in one direction.

HORACE WYMAN. JOHN A. CLARK. JOHN G. SODERBERG.

Witnesses:

IRVING H. VENY, SAMUEL B. SCHOFIELD.

Copies of thispaten't may be obtained for'five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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