US314907A - Loom-shuttle - Google Patents

Description

(No Model.)

A. T. ATHBRTON.

LOOM SHUTTLE.

Patented Mar, 31

UNITED STATES PATENT FFICE.

ABEL T. ATHERTON, OF LOVELL, MASSACHUSETTS.

LOOM-SHUTTLE.

.SPECIFICATION farming part o Letters Patent No. 314,907, dated Ildezrch 31, 1835.

Application filed Juno 7,1834.

y vthe Wall of chamber C, and K is the narrow To all whom tmay concern:

Be it known that l, ABELT. ATHERTON, of Lowell, in the State of Massachusetts, have invented a certain new and useful Improvement in Loom-Shuttles, of which the following is a specication.

Myinvention relates tolooin-shuttles of the kind known as handthreading77 shuttles, or,as they are so metiines butimproperly called, self-threading77 shuttles. ln a shuttle of this kind the yarn from the spindle passes to the throat, in which there is usually a stud or shoulder in line with the axis ofthe spindle, around which shoulder the yarn makesa quarter-turn, and thence passes to and through the delivery-eye in the side of the shuttle. When the shuttle is in active operation, the thread or yarn is liable to leave the shoulder or stud and to come to the outside of the shuttle, thus producing what is called unthreading the result of which is to make a bad place in the cloth, and to necessitate the stopping of the loom for the purpose of replacing the yarn in its proper position.

It is my object to prevent unthreading, without, however, interfering with the easy threading of the shuttle. To this end I close the passage in the top of the shuttle through which the thread or yarn from the spindle is passed over and around the shoulder or stud by a spring which is so arranged that it will yield to permit the entrance of the thread into the passage guarded by it, and will, after the thread has entered, automatically closeand prevent the accidental displacement of the thread from around the shoulder.

The nature of my invention will be readily understood by reference to the accompanying drawings, in which l have represented it as applied to ahand-threading loom-shuttle of the kind described in Letters Patent No. 185,041, of December 5, 1876, granted to Whitehead 8U Atherton, assignees of A. M. Moore.

Figure l is a side elevation of the front portion of the shuttle. Fig. 2 is a plan of the same. Fig. 3 is a crosssection on lineS 3, Fig. l. Fig. 4 is a longitudinal section on line 4:4, Fig. 2.

A is the body of the shuttle, B is the spindie," C is the chamber, and D is the throat. G is the delivery-eye, H is the threadingeyein (No model.)

threadingslot, which extends longitudinally from the delivery-eye G to the threading-eye H, and also extends laterally through from the L outside of the shuttle into the throat D. Eis the stud or shoulder, fastened in Vplace in the lthroat by its base-piece E, so as to be out of contact with the side and front walls thereof, thus leaving on the sides and at the front of t-he stud or shoulder passages a b c, which are used during the threading operation in the mannerhereinafterexplained. In thethreaded shuttle the thread or yarn extends from the end of the spindle to the stud or shoulder E, around the front of which in the passage a it makes a quarter-turn, and thence passes to and out through the delivery-eye G.

Thus far the shuttle is substantially like the patented shuttle hereinbefore referred to.

As I have before stated, the thread or yarn, when the shuttle is in active operation, is apt to rise and escape from the stud or shoulder through the passage a, which ordinarily is open atthe top. This event is of not infrequent occurrence, even in the patented shuttle repre sented in Letters Patent hereinbefore cited, although in said patented shuttle it was essayed to prevent such au accident by bending the upper end of the stud forward and downward until it almost touched the Wood at the shallow end of the throat.

Ihave found in practice that to prevent with certainty the yarn from dying offfrom the stud, and thus coming to the outsideof the shuttle, it is requisite to completely close the outlet through which the yarn may escape at the point where it turns the corner to go to the delivery-eye. To this end l make use of a light plate-spring, d, which is arranged to com pletely close at the top the opening or passage Vbetween the shoulder or stud and the front wall upon the shuttle-wood in a slight recess or depression, e, formed in the top of the shuttle. Under this arrangement unthreading is entirely prevented. At the same time the op- ICO eration of threading the shuttle by hand can be performed with as much ease and expedition as though the spring were not present.

The threading operation is as follows: The cop-yarn from the spindle is pressed by the foreiinger of the right hand through the threadingeye, and the projecting end is taken in the left hand. The thread, .held on theinside in the right hand and on the outside in the left hand, is drawn along through the threading-slot K, as indicated by dotted line x aaFig. 2, being bent up as it reaches the stud E, so as to pass along through the passage b between thelatter and the adjoining side wall of the throat, as indicated by dotted lines m x, Fig. 3. From the threading-slot the thread emerges into the delivery-eye, As soon as this occurs, the innerbent-up end ofthe thread (held in the right hand) is drawn down into the depression e and under the free end ofspring d, which yields and rises to permit the passage ofthe thread. The thread is now in the passage a, and extends direetly from the end of the spindle around the corner formed by the stud or shoulderE to and through the delivery-eye G. The operation can be performed quickly and with as much ease as though there were no spring present.

In conclusion I state that I am aware it is not new in a hand-threading shuttle to close the threading slotthat is to say, the slot formed in the wood or body of the shuttle and communicating with the delivery-eye for the purpose of facilitating the entrance of the This is not my invention, nor does it serve to bring about the result which itis the object of my improvement to attain.

What I claim as new and of my own invention is- 1. The combination, with the shuttle-body formed with a delivery-eye, and the shoulder or stud around the corner formed by which the thread or yarn from the spindle passes to the delivery-eye, ofaspring-controlled strip bridging the space through which the thread passes between said stud or shoulder and shuttlebody,adapted to yield to the thread as the latter is drawnunder it into said space and to automatically close after the. passage of the thread, substantially as and for the purposes hereinbefore set forth.V y

2. The combination, with the shuttle-body formed with delivery-eye G, threading-slot K, threadingeye H, and throat D, of the stud or shoulder E and spring-strip d, under the arrangement and for joint operation substantially as hereinbefore shown and described.

y In testimony whe'reofI have hereunto set my hand this 2d day of June, 1884.

ABEL T. ATHERTON.

Vitnesses:

FRANK COBURN, GEORGE XV. COBURN.

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