US488214A - Half to joseph w - Google Patents

Description

(No Model.)

G. C. MOORE.

LooM SHUTTLE.

1\To.-lf88',214. Patented Dec. 20, 1892.

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lhvrrnn Srarns GEORGE O. MOORE, OF EASTHAMPTON, MASSACHUSETTS, ASSIGNOR OF ONE- I'IALF TO JOSEPH W. GREEN, JR., OF SAME PLACE.

LOOM-SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 488,214, dated December 20, 1892.

Application filed April 6, 1892. Serial No. 428,006. (No model.)

To all whom t may concern.-

Be it known that I, GEORGE C. MOORE, a citizen of the United States, residing at Easthampton, in the county of Hampshire and State of Massachusetts, have invented certain new and useful Improvements in Loom-Shuttles, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates primarily to shuttles for use in narrow ware looms, but certain features thereof are adapted to be applied to loom shuttles in general.

The Objects of my invention are to provide a shuttle of simple and strong construction which shall be fitted to hold a very much greater amount of weft yarn than the shuttles now ordinarily employed in narrow ware looms; to provide against the warp threads coming in contact with the coils of Weft yarn within the shuttle during the passage of the shuttle through the sheds in the warp threads in the process of Weaving; to provide for effectually holding a cop of yarn in place within the shuttle body while also enabling said cop to be quickly and readily removed from the shuttle body whenever desired; and to provide an improved means of putting a regular and uniform tension upon the weft yarn as it passes out of the shuttle.

My invention consists in certain novel features of construction which are hereinafter clearly defined, and it first Will be described with reference to the accompanying drawings making a part of this specification and then will be particularly pointed out in the claims at the close hereof.

In the drawings Figure l is a view in plan of a shuttle for narrow ware looms embodying my invention. Fig. 2 is a view thereof in cross-section on the line x-- of Fig. l. Fig. 3 is a detail view illustrating the tension regulating device hereinafter described. Fig. 4 is a view in perspective of the cop holder and its cop-retaining device.

The shuttle body is shown at of. It is hollowed out internally to form a weft-yarn holding chamber b and is formed witha forwardly extending bow portion b carrying the delivery eye b2. Ordinarily, the shuttle of a nar- 5o row ware loom fits between the adjacent edges of two vertical race-boards or rails, the said edges beinglitted into grooves which are formed in the upper and lower sides, respectively, of the shuttle body. Usually in such shuttles the weft yarn receiving chamber is in advance or forward of the grooves just mentioned and the shuttle body is necessarily of restricted depth or thickness. Not only is a shuttle which is thus constructed and 6o guided liable to cramp or bind at times between the edges of the race boards, as for example, when a warp thread breaks and. becomes entangled with others, and also, after the shuttle and race boards have become worn, when the floor on which the loom stands is shaken, but its capacity for holding aload of weft-yarn is limited and when a fully wound quill is placed therein the surface coils of the weft-yarn are liable to be swept 7c endwise of the quill over the heads or ends thereof and Onto the supporting spindle..

I so construct the shuttle body as to dispense with the grooves in the top and bottom sides thereof, and I completely hollow or cham- 7 5 ber out the said body, forming the latterI loetween the solid ends thereof and to the rear of the bow portion h into the shell b3 which is semicircular or approximately so in crosssection as shown clearly in Fig. 2. This shell 8o is of sufficient thickness to give strength and to have formed therein at the rear side of the shuttle the guiding groove b4, and on the bottom of theshuttle the longitudinal groove or rabbet b5 having at one side thereof theshoul- 85 der h6 extending lengthwise of the shuttle. The groove b4 is of suitable shape in crosssection to fit a horizontal guiding rib or rail applied to the lathe or hatten of the loom in which the shuttle is used. The said groove 9o has the lower portion thereof beveled or dovetailed and this shape of the groove and the guide rail prevents the shuttle from being unnecessarily forced upward out of its normal working position by the action of the de- A e item4 shuttle by means of a reciprocating carrier provided with pegs or levers which are caused to engage with holes 57 bl formed in the shuttle body near the opposite ends of the latter. The portion of the shuttle in Which is formed the groove or rabbet b5 slides on the upper edge of a vertical guide rail which is carried by the lathe or hatten, the shoulder b taking a bearing against the rear side of the said guide rail. The shell b3 partially surroundsthe cop or load of yarn which is placed Within the shuttle body, the upper portion be of the said shell extending sufficiently far above and forward over the load of yarn to form-an over-arching or over-hanging hood or guard Which protects the surface coils of the yarn load from being rubbed by the warp threads, and the lower portion b9 forming a bottom to the chamber and extending forward underneath the cop of yarn. A shuttle body formed as described may have placed therein if desired an ordinary quill or spool mounted upon a spindle having bearings in the shuttle body as usual. I prefer to apply the weft yarn to the shuttle Wound in cop form, inasmuch as I am enabled thereby to introduce a much greater quantity of weft-yarn into a shuttle of given dimensions.

To fit the shuttle for receiving a cop, I secure to one end of the shuttle body, Within the chamber b, a cop holder such as that shown detached in Fig. 4, the same consisting of a stub spindle c having at one end thereof a flange or head c having holes therein for the passage of screws c2 by means of which it is fixedly secured to the shuttle body.

For the purpose of securing the cop upon the spindle c I provide the latter with a spring c3, a portion of which fits Within a groove c4 in the under side of the spindle c, the said spring being fastened to the spindle by the end thereof which lies Within the said groove. The spring is bent so that a portion thereof projects out of the groove c4, and the free end of the spring is bent at an angle and passes through a hole which is formed through the spindle c, the said end being further bent or curved so as that it forms a finger-hold which may be pressed up by the finger of the loom attendant in order to bend the spring and draw the body portion thereof Wholly Within the groove c4. This is done Whenever it is desired to disengage from the interior of the cop the spurs or points c5 with which the spring c3 is provided for the purpose of holding the cop on the spindle.

At the end of the shuttle body opposite to that to which the cop-holding spindle c is affixed I secure Within the chamber, and in line with the nose of the cop, a guiding eye ci through which the yarn is drawn on its Way from the cop. From the eye d the weft yarn passes to a guide eye g fixed in the bow, thence to and through a tension regulating device e, thence to and through a guide eye f in the bow located oppositely With reference to eye g, and thence to and through the delivery eye b2.

The tension regulating device e is of peculiar construction, and is illustrated in detail in Fig. 3. It has a number of eyes e through which the weft yarn is roved in succession, the said eyes being arranged in alternating succession on opposite sides of the middle line of the tension regulating'device, which latter extends transversely of the boW. The

said eyes are preferably porcelain eyes, and are secured in the ends of the arms e2 forming part. of a spring Wire e3 Which is Wrapped in opposite spirals around a rod e4 having its ends seated in the bow of the shuttle, the ends of the Wire being secured to the bow, as shown. The spiralsextend around the axis of the rod in opposite directions alternately, and at the point where each change of direction occurs an arm e2 is formed by carrying a loop of the Wireoutward, the sides of the said loop being compressed upon themselves, as by twisting, and aguide-eye e being, by pref erence, inserted into the end of the loop. These arms e2 are of progressively varying lengths, being shortest next the eye f and longest next the eye g, this feature being in tended to secure a gradually varying degree of iexibility.

Having now described my invention and the best manner with which I am at present acquainted of reducing the same to practice, I claim as my invention;

l. The herein described shuttle having the body thereof holloWed out to form the chamber b, and having the trough-shaped shell provided with the protecting portions bs b9 extended forward to partially inclose the load of yarn Withinthe shuttle and shield it from contact With the Warp-threads in a loom, the

lsaid shuttle having the guiding groove b4 in the rear side thereof, and the rabbet and shoulder on the under side thereof, substantially as described.

2. The combination with the shuttle body,-

of the cop-holder consisting of a spindle xed rigidly to the said shuttle body and formed with a groove along one side thereof having secured therein by one end a bent spring provided With cop-engaging spurs or points on a portion thereof which projects out of the groove, and formed With a finger hold by means of which the spring may be sheathed Within the groove, substantially asdescribed.

8. The combination With the shuttle body, of a tension regulating device consisting of a spirally Wound Wire having portions thereof projecting at intervals to form arms, the said arms being alternately disposed in dierent lines and provided With yarn-guiding eyes, substantially as described.

4. The combination with the shuttle body, of the tension regulating device consisting of a Wire formed in alternating reversely Wound spirals and having portions thereof projecting at intervals to form arms, the said arms being alternately disposed indifferent lines and nately disposed in different lines and pro- 1o provided With yarn -guiding eyes, substanvided with yarn-guiding eyes, substantially tially as described. as described.

5. The combination with the shuttle body, In testimony whereof I affix my signature in 5 of the tension regulating device consisting of presence of two Witnesses.

a Wire formed in alternating reversely Wound GEO. O. MOORE.. spirals and having portions thereof project- Witnesses: ing at intervals to form arms, the said arms DAVID HILL,

radially Varying in length and being alter- S. JOSIE HILL.

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