US613392A - Meddle for cross-weaving - Google Patents

Description

Patented Nov. I, I898.

.1-. B.. PATTERSON.

HEDDLE FOR CROSS WEAVING.

(Applieatibn filed Aug. 6, 1897.)

(No Model.)

I nven'tor.

Attorney.

UNrrnn Frn'rns PATE T Fries.

JAMES B. PATTERSON, OF PHILADELPHIA, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 613,392, dated November 1, 1898.

Application filed August 6, 1897. Serial No. 647,326. (No model.)

To all whom, it may concern.-

Be it known that I, J AMES B. PATTERSON, of the city and county of Philadelphia, State of Pennsylvania, have invented an Improvement in Heddles for Cross-Weaving, of which the following is a specification.

My invention relates to heddles for crossweaving; and it consists of the improvements which are fully set forth in the following specification and are shown in the accompanying drawings.

More particularly my invention relates to heddles designed for cross-weaving, and especially to the heddles or devices for effecting the crossing of the warp-threads.

My invention relates to improvements in doup-heddles which control doup threads or warps and operate to cross them over other threads or warps in the formation of the sheds in weaving. These doup-heddles consist of a series of strips or members combined with doup-needles which control the doup threads or warps and operate to lift them first on one side of the free warp and then on the other without the necessity of shifting the heddles laterally. In devices of this kind difficulty has been experienced heretofore in effecting the crossing of the threads with certainty and precision, and this has been particularly the case in fine weaving, where the threads must be brought very close together.

The objects of my invention are to enable the crossing of the threads to be efiected with facility and precision, to prevent the doupneedles from catching on or passing on the wrong side of threads, to enable the donpheddles to performfine work, to enable the heddle members to be easily and quickly put together and the doup-needles to be applied and removed, to enable the doup-needles to move freely and without liability of binding or twisting, to maintain the heddle strips and needles which compose the heddle in proper position, and to simplify the construction.

My improvements relate particularly to the construction of the heddle-strips and donpneedles and to the combination thereof in the formation of the heddle.

I shall now refer to the accompanying drawings for the purpose of more particularly describing my improvements.

Figure l is a front elevation of aheddle strip or member embodying my invention. Fig. 2 is a longitudinal vertical sectional View of the same on the line 00 0c of Fig. 1. Fig. 3 is a transverse sectional view on the line y y of Fig. 1. Fig. 4: is a perspective View of the detached doup-needle. Fig. 5 is a front view of a portion of a heddle made up of my improved heddle strips or members; and Figs. 6, 7 ,and 8 are diagrams illustrating the operation of the heddle-strips in crossing the warps.

A is the heddle-strip, consisting,preferably, of a flat strip of metal bent forward at about the middle to form a small shoulder or offset at, having the side edges 1) b of the lower portion bent inward to form a longitudinal guideway for the-doup-needle, with a flat base 0, and also having a longitudinal guiding-eye d stampedor formed immediately below the' oifset or shoulder a and the two sides of the strips bent up to form guiding-wings e 6, ad jacent to the shoulder a. The strip Ais also formed with openings 0 0 above and below the guide cl to facilitate 'the application and removal of the needle and to form a guide therefor.

B is the doup-needle, which preferably has a body f of round cross-section and is provided at the top with an eye 9 and at some point in its length, preferably at the base, with a flattened guide h, adapted to the guideway formed by the fiat base 0 and bent edges 1) b of the strip A.

The eye 9 is preferably formed by fiatten ing the end of the needle B transversely to the flattened guide 7L on the body of the needle and has its head tapered, as at i i, so as to prevent the free thread from catching thereon and to assist in properly guiding the thread over the needle. The eye-opening is preferably elongated and extends to as great extent as possible to the top of the eye, so as to bring the donp-needle thread as close as the strip A, (its downward movement being limited by a stop,) and the flattened guide h travels in the guide in the base of the strip A. As the guide his flattened and travels in a correspondiugly-flattened guideway in the strip A, the needle I will be held against turning, so that the eye g, which is arranged transversely to the guide 71, will be maintained in proper position. By making the body of the needle B round and using the small flattened guide 72. friction is reduced to a minimum, and there is consequently little liability of the needle to bind in the guide of the strip A and not to move freely thereon, as is necessary to the successful operation of the heddle.

The harness is composed of a series of the strips A, arranged adjacent to one another, as illustrated in Fig. 4. To enable the strips to be easily placed together and to be properly spaced, as well as to prevent the twisting or turning of any of the strips, which would be liable to interfere with the crossing of the threads, I preferto bend over the ends of the strips, as at j, to form a loop having two parallel sides 7.2, which are provided with openings 6 Z to receive the heddle wire or strip 0. The strips A A are placed side by side on the heddle wire or strip C, with the bentover loops butted together, which thus act to keep the strips properly spaced apart. As the heddle-bar 0 passes through the openings Z Z in the two pieces 70 7c of the loop the heddle-strips will be firmly supported and prevented from twisting or turning.

At the base I prefer to bend the strip, as at m, to form a shoulder which acts as astop to limit the downward movement of the doupneedle B and to maintain its eye 9 in proper position. The lower end of the strip is provided with an opening at to receive the heddle-bar D.

I prefer to leave the side edges 1) b, which form the sides of the needle-guideway on the strip A, open at the base adjacent to the stop or shoulder m. This prevents the end of the guideway from becoming closed or clogged up,which might interfere with the free movements of the doup-needle,and also facilitates the application of the needle to the strip and its removal therefrom. To remove the needle, the lower end, which is provided with the guide-wing 71, is drawn down and sprung outward free from the stop or shoulder m, when the needle may be readily drawn out, the openings 0 0, adjacent to the guiding-eye cl, permitting the needle-eye g to be disengaged. To apply the needle, the operation is reversed. The needle is pushed upward in the guideway 0 until the eye 7 is immediately below the needle guideway 61, when the eye is passed behind the guide d through the openings 0 0, and the guide-wing h is simultaneously sprung over the shoulder m into engagement with the guideway 11 b c.

In Figs. 6, 7, and S I have illustrated the operation of the heddle in crossing the threads. sis the free thread or warp, and t is the doupneedle thread or warp, which passes through the eye g of the doup-needle B.

It is under-' stood that the free warp of one heddle may be the doup-needle warp of another heddle, and vice versa.

When the heddle and doup-needle are at rest, as in Fig. 6, the free warp .9 lies above the eye Z) of the doup-needle. \Vhen the (loopneedle thread is lifted, which is accomplished by suitable heddles or lifting-wires, (not shown,) the needle 13 is lifted also and passes above and outside of the free warps, as shown in Fig.7. This is effected because the free warp lies above the wings a 6 inside of the line of movement of the doup-needle. IVhen the warp i is released, the doup-needle falls back into its former position, carrying the warp if with it. hen the heddle-strip A is lifted, the doup-needle and warp t are lifted also and pass above the free warps, which is, however, pushed outward by the wings c a, so that it lies on the outside of the needle B, crossed over the doup-needle thread, as shown in Fig. 8.

I do not limit myself to the details of construction which have been shown for the purpose of illustration, as they may be varied without departing from the invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is as follows:

1. A heddle strip-or member bent in its length to form an offset and provided with a thread-guiding projection and a needle-guide adjacent to said offset, and having the side edges of its lower portion bent as at 1),?) to form a guideway with a fiat base 0, in combination with a doup-needle provided with a fiat guide-wing h adapted to the guideway of the strip and moving on the fiat base 0 thereof.

2. A heddle strip or member bent in its length to form an offset and provided with a threadguiding projection and a needle-guide adjacent to said offset, and having the side edges of its lower portion bent as at b b to form a guideway with a fiat base a, in combination with a doup-needle, provided with a fiat guide-wing 7L, adapted to the guideway of the strip, and moving on the flat base 0 thereof, and having, at its upper end, a fiattened eye g, arranged transversely to the flat guide-wing 7L.

3. A heddle strip or member bent in its length to form an offset and provided with a thread-guiding projection and a needle-guide adjacent to said offset, and having the side edges of its lower portion bent as at b b to form a guideway with a flat base 0, in combination with a doup-needle, provided with a flat guide-wing h, adapted to the guideway of the strip, and moving on the fiat base 0 thereof, and having, at its upper end, a flattened eye g, with the side edges of its heads tapered as at M, arranged transversely to the flat guide-wing h.

4. A heddle strip or member having the side edges of its lower portion bent as at b, b, to form a longitudinal guide with a flat base 0, in combination with a doup-needle provided with a flat guide-Wing, adapted to the guide at m to form a shoulder, and provided near 10 of the strip and moving on the fiat base 0 its extremitywith an openingn, substantially thereof. as and for the purpose described.

5. The heddle-strip, consisting of a flat piece In testimony of which invention I hereunto of metal bent in, its length to form an offset set my hand.

a, and provided with a needle-guide adjacent JAMES B. PATTERSON. thereto, and having one end bent as at j to Witnesses: form a loop, having two sides 70 It provided WM. R. SNYDER,

with openings 1,1, and its other end bent as ERNEST HOWARD HUNTER.

Images