US1074908A - Shuttle for weft-replenishing looms. - Google Patents

Description

E S STIMPSON SHUTTLE PoR WBFT REPLBNISHING LooMs'.

APPLIUATIQN FILED SEPT. 12, 1912.

Patented oct. 7, 1913.

u @Mom/w13 the inclined director it whic 2,0 tl'e and holds .35 between the two plates z' and y'is just Sulli- 4o Aspreader l?, is'located between the legs i5 guide C.

. 65 elson the upper inner edges ot .The shuttle spring B is secured to the shuttle by means of ytlu'a'usual lateral bolt E. which extends through the side walls of the shuttle and passes through a hole g in each 5 ,of the shank legs c. This retaining bolt is "held in place in the usual manner.

Y' Cooperating with the shuttle spring is the guide C, vwhich is similar tothat of l United States Letters-Patent vto J anello, N o. y, 782,505, February 14, i905. rl`his guide has I h acts to direct the 'head of the weftscarrier into the space between'the jaws a. Integral .with the ineline his a top plate z' and a bottom plate j. The top plate z' extends horizontally over #the shank c of the'spring B, covering the space between its legs. The outer end of Athis plate a' has' a hole through which passes a screw Z which enters the body of the shut the guide C in place.` The bottom plate j rests upon the bottom wall at the end of the shuttle chamber (as shownin Fig. 2) yand it underliesnot only the'shank and bows of the spring but also a portion '25 ol the grasping jaws a, by reason of the4 forwardly extendingears'm, m, ofthe plate -These ears rest, together with a portion 'of vthe side margins ofthe plate y', on the shoulders n 'of the recesses provided in the 30vwalls of the shuttle for the', expansion of the jaws a. The plates i and y' are parallel with each other and therel is just room -enouglibetween them for the maximum height of the shuttle spring B. Thespace cient lto allow the free movement of the jaws a to and'trom each o therA and any vertical displacement of the jaws is prevented by the plates.

- c, e to keepV the jaws a, a, properly spaced apart. vThe spreader is forked to straddle the'bolt E, and it is maintained in place by the top and bottom plates i and j, of the 7" The weft-carrier holding'spring, as thusV far described, is an improvement upon the spring of the' United States Letters-Patentof Cunni and Cookson, No. 906,390, of De- 50. cember .8, 1908. The present improved spring has its shank of greater'width than the jaws, and the connecting bows vary in width, narrowing gradually from the shank to the jaws, and the jaws widen toward their free ends, thus diiering from the spring of Cunnit and Cookson, wherein the spring is of uniform width throughout. By reason of this .construction applicant usesthe elasticity of the narrowing bows, and the greater 6o width of the shank imparts the necessary strength. The present vimproved construc- 1 tion reduces .to a minimum the breakage of the springs. `It 1s customary to provide s reading bev-l pthe jaws and/ nere,

.spreading bevel .s'v i tomary manner.

opposite to the inclination of the inner end ofthe shut the shank being above the verticalreesses therein for facilitating the entrance of an incoming fresh ,wett-carrier and the forcing or spreadingV apart thereby of the spring jaws. The present invention includes an improvement with respect to these. spreading bevels. In ace present invention, each s doubly inclined. It is om the top of t-he jaw n in Fig. A6, in the cus- In addition, it inclines continuously downwardly from near the free edge of'thejaw toward the base thereof, as illustrated in Figs. 3 and 5, in a direction director L. as shownvin cordance with th vinclined inwardly fr downward, as show 75 The result of this double incline, Fig. 3,-isto cause'the bevel to grow gradually'ideeper from front to rear as well as to grow deeper downwardly. The maximum depth is reached in the vicinity of the upper edge of the innermost. vert-ical recess e.' From this deepest point the doubly inclined bevel shallows more abruptly toward the rear. The effect of this doubly inclined bevel is to direct the base of a weft-carriergo' coming in contact therewithtoward the inner vertical recess of the jaws, so that the weft-carrier will be held close to the base of the inclined director I f the shuttle occupies a position toward the outer end of 9'5 the shuttle box when it receives a fresh weft carrier, the butt end oi' the weft-carrier will encounter the inclined director It and thereby direct it so as to be grasped by the inner recesses ofthe jaws. On the other hand, if the shuttle occupies a position nearer the tle box when the fresh weftcarrier is received, then the weft-car# rier will be directed by the double bevels towardthe base of the inclined director lt and 'hence will be grasped by the inner recesses.-

This is important because the farther away the'tin end of the weft-carrier is from the automatically threading eye of the shuttle, the more certainly will-the thread" be automatically threaded and the thread reels on better from the weft-carrier.

l. A loom shuttle holding s having a weft-carrier pring composed of a single piece ,of annealed cold'rolled spring chrome steel of uniform thickness bent into shape with a doubled .shank for connection with the shuttlc, jaws for grasping the' weft-carrier,and curved bows connecting the shank and jaws,

wider than any part of the jaws, each curved bow adually narrowing on its upper edge only ro/m/the shank to its jaws, and each jaw increasing in width on its upper edge only toward its iree'end.

2.' A loom shuttle having a wett-carrier holding spring composed of a single piece of spring rome steel bent into shape with a j do ed shank for connection with the shute, jaws forlgrasping the weft-carrier, and

inverses bows connecting the shank and jaws, the shank being wider than anypart of the jaws, each bow gradually narrowing on its upper edge only from the shank to its jaw, and cach jaw increasing in width toward its free 3. il loom shuttle having a weft-carrier holding spring composed of a single piece of spring steel bent into shape with a doubled shank Jfor connection with the shuttle, and jaws for grasping. the weft-carriera the shank being wider than the jaws.

Il. A loom shuttle having a weft-carrier holding spring comprising grasping jaws having vertical recesses in their inner faces, and each jaw having on its upper inner edge a spreading bevel above said-recesses, said bevel being doubly inclined, that is to say, inclining continuously downwardly from near the free edge of the jaw toward the base thereof until its maximum depth is reached in the vicinity of the upper edge of the innermost vertical recess and also inclining inwardly from the top of the jaw downward; whereby said bevel directs an incoming weit-carrier toward the vertical recesses of its jaw.

. y Gopzles et this patent may te obtained for ve cents each, by addressing the linclining continuou 5. A loom shuttle having a weit-carrier holding spring comprising grasping jaws having vertical recesses in their inner faces, and each jaw having on its upper inner edge a spreading bevel above said recesses,said bevel being doubly inclined, that is to say,

near the free edge of the jaw toward the base thereof and also inclining inwardly from the top of the jaw downward.

6. A loom shuttle having a weft-carrier holding spring composed of a shank for connection with the shuttle, jaws for grasping the weft-carrier, and bows connecting the shank and jaws, the shank being wider than any part of the jaws, each bow gradually narrowing on its upper edge only from the shank to its jaw,l and each width toward its. free end.

ln witness whereof, l have hereunto signed my name in the presence of two subscribing witnesses.

EDWARD S. S'llMPSON.

Witnesses: y

FRANK S. DUTCHER, v J. L. REMINGTON, Jr.

Commissioner o Patents Washington-B. G.

'aw increasing in a:

sly .downwardly 'from

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