US729106A - Needle-heddle and leno-cord-stripe motion. - Google Patents

Description

PATENTED MAY 26, 1903.

H. H. SUTGLIPPE. NEEDLE HEDDLE AND LENO 00m) STRIPE MOTION.

APPLICATION FILED SEPT. 13, 1902.

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No. 729,106. PATENTED MAY 26, 1903.

Y H. H. SUTOLIFFE.

NEEDLE HEDDLE AND LENO CORD STRIPE MOTION.

APBLIUATION FILED SEPT.13, 1902.

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Unrrnn STATES Patented May 26, 1903.

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HORACE H. SUTOLIFFE, OF PHILADELPHIA, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 729,106, dated May 26, 1903.

Application filed September 13,1902. SerielNo.123,235. .Nomodel.)

To all whom, it 721/141 concern:

Beit known that I, HORACE H. SUTCLIFFE, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Needle-I-Ieddle and Leno- Cord-Stripe Motions, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to attachments for looms designed for cross-weaving. Its object is to enable the doup-thread or warp-thread to pass over one or more of the free or regu- Iar warp-threads between each shot of weft or after a predetermined number of shots of weft, whereby corded effects, leno-selvages, 850., may be produced.

More specifically, the objects of the invention are to dispense with the use of an auxiliary heddle to lift the doup or whip thread, to avoid the necessity of having the lifting-cords that are attached to the jacquard or shaft of the loom extend through the warp, to dispense with any means for supporting the attachment other than the lifting-cords that operate it, to permit the insertion of the attachment in a loom having the regular warps already in place, to simplify the operation of the device by avoiding any vertical movement of the needle relatively to the heddle-frame, to actuate the needle wholly by the lifting of the heddle-frame, to enhance the certainty of operation of the attachment, and generally to simplify and eheapen the construction of the attachment.

The invention consists of a construction wherein the doup-needle is connected or pivoted to the heddle-strips in such manner as to be tilted toward one or the other heddlestrip by th eir alternate operation, being thereby caused to pass alternately on one side or the other of the regular warp thread or threads extending between the heddle-strips.

The invention also consists in certain details of construction to be hereinafter fully described.

In the drawings, Figure 1 is a front view of the attachment; Fig. 2, a side view thereof; Figs. 3 and 4, front views of a portion of the attachment when the same is lifted to throw the doup-needle thread to one side or the B is the doup-needle, pivoted at its lower end to both heddle-strips, and O is a connecting device joining the two heddle-strips and holding them a definite distance apart while permitting them to have independent vertical movements.

E E are weights secured, respectively, to the lower ends of the heddle-strips A A. The weights may, if desired, be dispensed with. F F are the cords, attached, respectively, to heddle-strips A A and leading to the jacquard or shafts of the loom.

or represents the free or regular warp'thread extending between the heddle-strips. There maybe a plurality of these warp-threads.

12 represents the doup or whip thread extending through the eye of the needle B.

G G are thread-guides projecting inwardly toward each other from the heddle-strips A A, respectively.

The operation of the device is as follows: The device maybe assumed to be in the lowered position. (Indicated in Figs. 1 and 2.) If now the cord F be lifted, the whole attachment, comprising both heddle-strips and the needle, is lifted. Initially, however, the strip A liftsa short distance independently of strip A, causing the needle to be thrown to the left, as shown in Fig. 3, and as the whole device is lifted the doup-thread 7) passes to the left of the free warp a. The danger. that might otherwise exist of the free warp catching between the strip Aand the needle is obviated by the guide G, which guides the free thread away from the strip A, against which the needle is resting. After the shuttle has passed through the shed and the pick has been formed the tension upon cord F is released and by gravity, aided by the weights, the device descends to its original position. The cord F is next lifted, which first throws the needle to the right against strip A and then lifts the whole device and causes the doupneedle thread I) to pass to the right of free warp a, as shown in Fig. 4.. By causing a plurality of the free warps to extend between the heddle-strips and manipulating the attachis formed.

ment as described the weave shown in Fig. 5

By using a plurality of the attachments and manipulating them independently by jacqnards or dobbies the weave shown in Fig. 6 is formed. In this figure there are illustrated three pairs of twisted warp-threads. An attachment is used for each pair. One of the threads of each pair is a free or regular warp-thread and the other a doup-thread.

A silk or other expensive yarn may be used for the doup-thread, while the ground may be of cotton or other cheap material, thus giving a rich cord effect to a cheap weave.

In Fig. 7 is shown a leno-selvage which is formed of two sets of twisted warp-threads, each set comprising two free or regular warp threadsandadoup-thread. Two attachments are employed, the two free warps of one set extending between the heddle-strips of one attachment and the two free warps of the other set extending between the heddle-strips of the other attachment. The two attachments are operated in unison.

. are perfectly flat, allowing plenty of room for the warp-threads. No auxiliary heddle to lift the doup or whip thread is required, in which respect it differs from certain other crossweave heddles. 4

The details of construction that I have del scribed represent the preferred embodiment of myinvention; butit is apparent that these details may be varied without departing from my invention. This motion can readily be made to a very fine scale, much finer than shown, which would enable it to be used for fine work where desired.

Having now fully described my invention, what I claim, and desire to protect by Letters Patent, is

1. In a needle-heddle motion, the combination, with a heddle-frame consisting of two strips, of a needle having no vertical movement relatively to the frame, and means for simultaneously lifting said frame and moving said needle toward one or the other of said strips, substantially as described.

2. In a needle-heddle motion, the combination, with a heddle-frame consisting of two strips adapted to have limited independent vertical movements, a lifting-cord attached to each strip, and a needle connected to both strips so as to be free to swing laterally.

3. In a needle-heddle motion, the combination, with a heddle-frame consisting of two strips, of a needle pivotally connected to both strips, and means to lift either of said strips, whereby the entire attachment is lifted and the needle moved toward the other strip, substantially as described.

4. In a needle-heddle motion, the combination, with a heddle-frame consisting of two strips, of a connecting device adapted to hold said strips a definite distance apart but permitting each strip to have a slight vertical movementindependently of the other strip, a needle having no vertical movement relatively to the frame, and means for simultaneously lifting either strip and moving said needle toward the other strip.

In testimony of which invention I have hereunto set my hand, at Philadelphia, on this 10th day of September, 1902.

HORACE H. SUTOLIFFE.

Witnesses:

M. F. ELLIS, M. M. HAMILTON.

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