US933729A - Automatically-threading shuttle. - Google Patents

Description

E S. STIMPSON.' AUTOMATICALLY THREADIITGgSHUTTLB.

APPLIOATION FILED FEB; 20, 1909.

Patented Sept. 7, 1909.

- e'rlv and freely err sTATEs PATENT ori ice.

EDWARD S. STIMPSON, OF HOPEDAIQE, MASSACHUSETTS; ASSIGNOR TO DE'APEB 66H- PANY, OF HOBEDALE, MASSACHUSETTS, A QQRPORATION OF MAINE.

AUTOMATICALLY-THREADTNG SHUTTLE.

933,729. Specification of Lettersfatent.

Application filed February20; 1909; Serial No. 429,071

To all whom it may concern:

Be it known that I, Enwan'n a citizen of the United States, andresident of Hopedale, county of \Vorcester, State of Massachusetts, have invented an Improve-l men t in Antoniatically-Threading Shuttles; of which the following description, in connection with the accompanying drawing, is a specification; like letters on the drawing representing like parts. i

This invention relates toshuttles designed to be used in looms of the type wherein pro vision is made to supplyautomatically the working shuttle with fresh filling from time totime without interfering "wti lth the running of the loom. Such shnjt es ardprovided with means to assunie control autoniatically of the incoming filling thread'and to direct it to the delive'ryseye of the shuttle in order that the thread may be delivered propas thesliuttle is picked.

The threading device is arranged to assume control of the new thread and direct it into a thread passage on the first shot of the shuttle following replenishment, and on the return shot the thread should be directed au-" tomatically into the delivery-eye completing the threading. Some shuttles are provided also with means whereby the thread can be delivered freely even if the threading is not completed on the second shot, as above re-- ferred to, so that while the thread is deliv-- ered from a part of the shuttle independent of the delivery-eye the thread will not be broken, nor will the proper operation of the loom be affected.

My present invention relates to the latter type of shuttle, and comprehen'ds certain ilnprovements in various features as well'as the construction of the threading device from plate or sheet-metal, formed by the useo'f suitable dies, so that the threading device is ready for use as soon as it is mounted in the shuttle,obviating various hand operations requiring skill and judgment on the part of the operator, and enabling the threading devices to be indefinitely and exactly repro duced.

I make the threading device in two parts and when such parts are assembled they are held in the proper relation one to the other to form a complete threadin device, and such relationship is maintainer by the single fastening member which retains the device as a whole in the shuttle.

S. SrmPso The various novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims. I Figure 1 is atop plan view of the eye of a shuttle containing mv present inven tionflfig. 2 is a front eevation the Fig. 33s a front elevation of the thee device, with its separable members assemble but removed from the shuttle; Fig. 4% is a right-hand end elevation of the threading do vi'ce 'shownin Fig. 3;. Fig. 5 in front clove-- tion shows one of the members of thethreading device uptilted'to more'clearly show the manner in which the members are assembled; Figs. 6 and 7 are perspective views of the outer and inner members of the threading device, the former member carrying shield and the latter member carrying gr :5 d.

ciif

and turned away from the nearer'tip ofitne shuttle; Figs. 8 and 9 are plan views oi the blanks from which are formed the outer and. inner members, respectively ofthe threading device; Fig. tion of the assembled threading device, View ingFigIB. i s

Ass own in 'Fig.' 1 the shuttle A. has a bobbin-receiving opening A and an open delivery-eye a. provided with a narrow entrance slot at, as usual in shuttles of this type, and the shuttle-Wood is suitably cut out to; receive the threading device and to present a "downwardly inclined directing channelAleading away from the tip of the shuttle tothe thread passage, the front wall a. of the channel extending to the entrane slot a' and having its to inclined down wardly from the top of the upper end ofthe entrance slot. liner 0, tubular in form, is; eye and is provided with a longitudinal slot 6 whichvregisters 'sviththe entrance slot a as shown in Fig. 2, the z neral' shape of the liner being shown in otted lines Fig. 1. This liner is made the subject of claimssin another application Serial by'me the 12th day of' Octobei, 1968, and is not. claimed herein. In such plication I have also shown the threadingfievice made of plate or sheet-metal, in two parts, and herein I have shown anotherttorn oft-breading-device, the peculiar and novel ares of which will be fully described hereinafter.

A metallic The blanks B and C, Figs. 8 and 9 enter Patented se ta. teen.

I0 is a left-hand end eleva- V" shuttle to the beak which in practice is curved rearwardiy inserted in the stamped out of suitable plate metal, such as sheet steel, form'when completed the two .parts or members of the threading device,

the blank B being bent on the dotted lines b to present upturned and parallel front and rear walls I), b, Fig. 6, the flat bottom 22 connecting the walls having at one end an extension 5, turned up as shown in Figs. 3, 5, 6 and 10, at b and notched, while atthe opposite end of the bottom is a tongue slightly upturned-at its extremity, as at b, to form a stop, forapurpose to be described. When the members are assembled the parts I) and b shuttle. The forward end of the wall I) extends wellalong under the shield to provide position-the inner member in the outer member, which latter is made from the blank B, in my present invention. Said blank is bent laterally along the line 6 Fig. 8, at the forward end of wall b and such bent over portion is shaped to present a shield 12 downcurved at its forward end at 6 and as shown in Figs. 2, 3 and 5 the upper face of the shield is upwardly inclined from the top of the will 5 toward the tip of the a firm and rigid support therefor, the notch 2 assisting'in the shaping of the shield by the forming dies. i

Viewing Figs. 3 and 6 it will be seen that the upturned end I) of the extension Z1 is separated from the adjacent upright edges of the front and rear walls, providing the inner end of a holder for the insertion of a pad p of felt, flannel, or other friction producing material, asi'shown in Fig. 1, over which the thread draws from ,"the bobbin when the shuttle is threaded.

. As best shown in Fig. 1 the edge Z) of the shield extends in a diagonal direction front- I ward from the wall Z) and. toward the shuttle-tip, and then forward at b to the beginning of the downcurved part 67, thence diagonally toward the rear wall of the shuttle, as at b. The end of the wall I) nearestthe bobbin-receiving opening A is -pro- \longed at b and bent laterally toward and nearly to the rear wall I), the prolongation I) being shaped to present a tapered guard convex on its upper edge, and concaved or slightly hooked at its low'er edge, as at 1), Figs. (land 10, the point or nose of the guard being turned forward, as shown in Fig. 1. TlllS guard not only serves asa'. means to 1 blank C from which is mad the other memheir of the threading device, its structure pre enting the parts complementalto those of tie member already described and necesduring the operation of threading. the shuttle.

Referring to Fig. 9 the blank C is bent, along the lines 0 to present parallel and upturned front and rear walls a, c, Fig. 7, the former being the higher of the two, and the wall 0 is bent laterall and outward along the line 0*", to form the substantially triangular head 0 curved over to lie upon the shuttle-body adjacent the entrance slot in directing-the thread into such slot asit draws around and slides down the horn 0 formed by the inclined forward edge of the front wall c. "The wall is cut. out to'provide a heel c at the lower end of the horn and form a. clearance which accommodates the inner end of the liner 0 for the deliveryeye of the shuttle. The heel as usual serves to retain the-thread in the eye after it has over artc at the top of the wall 0 forms a pro ongatlon of the head c? and seats in a beak-r at. the upper end of the horn and forming the forward terminatlon of the head 0" and the horn, the beak being bent passagepformcd by the parallel walls 0, c. The point 0 and majqr portion .of the beak are urned' away from the shuttle-tip, as shown; and its upper edge is inclined from the apex c! to the. oint of the beak.". bIaid bea'k tapers, in the direction of its length, as will be apparent, and its forward face is inshuttle-tip, sotha't during the threading operation the thread will slip over the beak readily and off its point into the thread passagc.- The beak will also readily shed a loop of thread if thrown forwardiuponfas lhen the two members of the tdevice are assembledthe shield extends frontward beyond the apex of the-beak, for a purpose to be referred to.' Opposite 71, b, and similar holes 0"" are made in the walls a, a, so located that when the two members of the threading devices are assembled a single fastening or retaining bolt M, Figs. 1 and 2, can be passed through the two sets of holes and the sl'mttle-wood, retaining the threading device securely in the shuttle and locking its members fixedly together.

sary to the effective .control of the thread recess a in the top of the shuttle d ig. 1.

l'have shaped the blank C to provide for a and extended rearwardly over the thread.

clined' withlrcsp'edt to the longitudinal axis of the shuttle and also with respect to the brew ing- The bottom w of the thread vpa ssage has at a, the forward edge 0 of the head assisting been drawn under the heel...and the bent frmitward and overhangs the beak-,lflas clearly shown in Fig. 1, the front edge 1?); crossing above the beak at quite a'dis'tance holes. I) are drilled or punched in .the walls scarce its forward end a toe and at its opposite bled,--and to efiect this the inner tipped up and 'sage rests flat upon I outer member, as in right part b of end it is beveled 05 to leave a slight projection 0 while a laterally bent ear 0 on the topv of the wall 0 fits into a recessed part of the shuttle-wood. Herein I'have shown the upright end of the wall 0 nearest the bobbin-opening A as notched, at c, for a pun to be described.

The two members of the threading device, made as described, have now to be assemmember is the beak on its front wall is passed under the the outer member, a' ainst 'the upturned stop 5 as shown 111 41g. 5. With the parts in the relative posi tion therein illustrated the inner member is swung down about the stop I) as a fulcrum, (the walls c and 0- fitting snugly and easily between the wallsb and b of the outer memher) until the bottom 0 of the thread pasthe bottom 6 of-the Fig. 3. At this time the projection c wipes down into place a ainst the adjacent face of the notched upthe extension 6 so that the two members of the threading device are definitely fixed in'proper relative position,

andat such time the holes 0 will register with the. holes 6 after which the assembled members are ut into the shuttle and locked therein and together by the single bolt M, th'e friction pad 0 being-forced into place between the'bolt M and the upturned part 6- and held laterally by the walls 0, c,

large friction surface at the bottom and inner end of the thread passage. By locating the projection a? at the frontside of the bottom 0 of. the

thread passage vit clears'the guard b when the members are assembled as described, and by oftsctting the toe c and the tongue having the stop I), as best shown in Fig. l, the inner or rearmost'end ofthe liner e is cleared when the threading device is posltioned in the shuttle.

' down from .the position shown in Fig. 5 to that shown in Fig. 3 the point of the guard b enters the notch 0 as shown in 10, the extremity of the point projectihg be yond the plane of the front face of the wall c'.-

Referring to Fig. 2 it arts of the threading below the top of the shuttle-body, particularly at the back of the shuttle-,- so thud there will be seen that all can not be any interference with the warp as the shuttle passes through the shed.

In both Figs. 2 and 3 it will be seen that shield on the rear wall of. the toe o bringing up 1 As the inner member is swung s l l eiiected on threading of the shuttle is completed.

device are ehtn'ely the frontwardly extended parts 0 and or the wall c'slope downward toward the tip of the shuttle at the eye-end thereof, to assist the direction of the thread over and beneath. the beak on the first shot of the shuttle following filling' replenishment. Supposing the fresh supply'offilling to have been insorted in the shuttle, as the latter is picked the thread draws over the convex upper edge of the guard b and around and beneath its point, passing into the notch a and out of it into the thread passage, the concave lower edge or the guard-then extending over the thread. Slice under the guard the thread is trapped in the inlet or inner end of the thread passage and cannot be thrown or whirled out of it, .for the face of the rear wall 0 is beyond the tip or point-of the finger, as clearly shown in Fig. 10, and as the guard is very near the t-i of the bobbin the whirling of the threa is restricted within proper limits. Ordinarily the thread slides along the prolongation 0 and over the head 0 and is drawn beneath the shield b, the down-curved and rearwardl inclined'or diagonal edge 7) of the shie d acting to positively depress the thread and draw it down across the top ofthe beak .07, OH its point and then beneath the beak, this being e first shot of the shuttle and the thread is then in the thread passage and lies in the channel A, or acrossits front wali at. Now the return or second shot of the shuttle is made, .and the thread as it draws around the home and under the edge c of thehead c is directed under the heel and into the entrance slot a, passing thence through theslot e bf the liner-e into such liner and into the delivery-eye a, so that i If the thread should not be'drawn beneath the beak on the firstshet it will still be in deliverable condition without danger of breakage, for the thread will draw oil around the base of the guard b, the latter now serving as a leader for the thread. This capability of the guard is clearly shown in Fig. 1, for the linger is curved rearward and forward toward the beak, making a kind of book for the thread to. draw around. After the thread has been directed beneath the beak on the first shot and the. shuttle starts back on the" second shot the forward edge b and front edge 6 of the shield act to direct the thread against the edge e of the head at a-point so tar away from the apex c" of the -;beak, toward the front of the shuttle, that the thread, even if very kinky or finegcannot curl or twist in such a manneras to get behind the apex and thence off the beak. Hence after the thread has once been drawn under the beak it cannot approach the apex of the beak near enough to slide back behind such apex and fall. off or be shed from the beak. Referring to Fig. 1 it will be sen'that the diagonal edge 'b" of the shi ld and the guard 7 are a long distance. apart, the intervening space communicating directly with the thread passage, so that if a loop of thread should be thrown forward from the bobbin it would rarely strike the shield, but would drop across the guard into the open space,

and would be taken up without any possibility of catching on the beak. Should the loop 5 be long enough to strike the shield the edge I) thereof would direct theloop frontward away from the beak and out of danger. I

. By making the shield and the guard on one member of the threading device, and the head and rearwardly and-backwardly turned beak on the other member the construction of said members is materially facilitated, and the assemblage thereof is easily-effected in the manner described. Herein that side or wall of the shuttle nearest the front of the loom is regarded as the front of the shuttle, and the rear of the shuttle is its opposite side, when the shuttle is on the lay. and the term forward means toward the tip of the shuttle at the thread-delivering end thereof.

Havingfully described my invention, what I claim as new and desire to secure by Letters Patent is:-

1. An automatically-threadingshuttlehaving an open delivery eye and a, two-part sheet-metal threading device, each member thereof having upturned front and rear walls one pair of which is adapted to enter snngly :10 between the other pair and form a thread passage,.one of the front walls terminating in a horn having a rearwardly turned beak and the other front wall having a fixed guard thereon overhanging the thread passsage at its inner end, one of the 1.:ear'walls having a frontwardly extended shield overlapping the beak and the other rear wall having a notch to receive. the point of the guard, and means to" properly position one 40 of said members with relation to the other when said members are assembled.

v 2. An antomatically-threading shuttle having an open delivery-eye and a two-part sheet-metal threading device. each member thereof having upturned front and rear walls one pair of which is adapted to enter snugly between the other pair and form a thread passage, one of the front walls terminating in a horn having a rearwai-dly turned beak and the other front' wall having a fixed guard thereon overhanging the thread passage at its inner end. terminating in a point. ,and turned forward toward the beak, the ,poi-nt extending rearward beyond the plane offtho face the rear wall of the thread passage. to admit. the fillingdhreadthereinto while preventing its withdrawattherefrom.and a frontwardly extended shield on theother rear wall, overlapping the beak,

the guard serving as a-guide for delivery of the thread independently of the deliveryeye.

3. An automatiea'lly-threading shuttle having an open delivery-eye and a two-part sheet-metal threading device, each member guard on the front wa thereof having a turned front and rearwulls one pair of whic is adapted to be inserted between the other pair and swung down into operatii'eposition between them, to Gun 0. thread passage, a horn on the front wall of one member, having a rearwardly- :turned beak, and a frontwardlv extended. shield"v on the rear wall of the other memlier QW-li'lflbr' ping the beak, the shield being downcufrved i at its forward end beyond the beak, to" 15 tively depress and direct the thread of fi ling down under the beak, a guard on one of -lfhe the guard.

at. An automatically-threadingshuttlehavs5 .ing an open delivery-eve and a two-part sheet-metal threading device, the nner niem ber thereof having upturned walls constitutmg a thread passage, the front wall 'ter m- 'nating in a horn having a rcarwardly-turned beak and the rear wall having a notch-1n; 5' its inner end, the other outer. member having upturned walls toreceive between them the walls of the inner member, the rear wait of the outer member having a fron'lwardly extended shield overla )ping the beak, a

ll at its inner end, overhanging the thread passage and turned forward with its point extended into the notch, and a stop on the outer member to coiiperate with a toe on the inner member and forma fulcrum about which the inner member can be swung into and out of opera-i tive position with relation to the outer member.

An autonmticall v-threading shuttle having an open delivery-eye and a two-part sheet-metal threading d,evice,the inner member thereof having upturned walls constituting a thread p:ls.\'tlg0-,il le front 'wall terminating in a horn having a rearwardly turned beak and the rear wall. having a notch in its inner end, the other outer memher having upturned walls toreeeive be- I tw eeiithem the wallsvof the innermember, 15

the rear wall of the outer member having a; frontwardly extended shield overlap ing the beak, a guard on the front wallat i s inner end, overhanging the'thi'ad :nassage at its inner end and with its point extended into 1 0 the notch'beyond the plane of the front face of the wall, and means to position said members relatively to each other when as sembled. t g 6. An automatically-threading shidtl 12 ,having-an epea delivery-eye and a two-part she'dt metal threading device, the inner member thereof having upturnedswallsconstitilting a thread passage, the "front wall terminating in a horn having a-rearwardly the notch beyond face of thew-all, the outer member having 5 tween the said -upturned so thread passage sage, and a stop ner member having beyond the thereof into operative position,

6.0 separable threading device forming a thread passage, a

turned beak and the rear wall having a v notch in its inner end, the other outer memher having upturned walls to receive between them the Walls of the inner member,

5 the rear 'Wall of the outer member having a frontwardly extended shield overlapping the beak, a guard on the front wall at its inner end, overhanging the thread passage at its inner end and with its point extended into the plane of the front upturned portions at" the opposite ends of its bottom, and projections on the inner member, at its opposite ends, to enter beportions on the outer member and position the two members when asembled.

7. An automatically=threading shuttle having an open delivery-eye and a two-part 20 sheet-metal threading device, one member thereof having upturned walls forming a thread passage, the front wall terminating in horn having a rearwardly turned beak,

and a forwardly extended toe on the bottom 25 of the thread passage,

the other member also having upturned walls the rear one having a frontwardly extended the beak and the front wall having a fixed guard at its inner end overhanging the and having its point extended rearward beyond the plane of the face of the rear wall of the first-named member, to"

assist in directing the filling-thread into an toprevent its escape from the thread pason the second-named member to engage the toe on the first-name member and position it when swung downrd to place the upturned walls thereof be tween the walls of thefirst-named member."

,8. An automatically-threading shuttle having an open deliveryreye andja threading device eomposedxfiitwo members madeof "sheet metal and: ang'hl arl i movable into oper'ative position one \vlthm 'the other, the inhorn terminating in a fined guard on the overlapping the beak and being downeur'i' ed over it and having its'front'edge extended apexof-thelbeak, the guard. be inglocated. at the inner end of and overhanging the thread passage, and means on the outer member to cotiperate with the inner member and permit angular movement venting relative longitudinal movement of said members when operatively positioned.

' 9. An automatically-threading shuttle having an open delivery-eye and a'two-part, made of pressed sheet-metal., each member having parallel n tnr. ed Walls, the walls of the inner memb being movable into operative position between walls of the outer member and rearwardly exshield overlapping a. thread-passa e and a beak, a shie d and a' outer member, the shield.

while premetal threading tended thread-directing guard on the outer front wall overhanging the thread passage at its inner end, a horn on the inner front wall having a beak the passage at its outer end, said wall being extended fronlfward to form a head and a prolongation thereof toward the inner end of the thread passage, said head and its prolongation being downwardly. inclined from the inner to the outer endof the thread passage to facilitate direction of the thread thereovcr, a frontwardly extended shield on the outer rear wall overlapping the beak, an extension on the outer member, upturned at the inner end of-thc thread passage, to form the inner end of a holder for a friction pad, and

.an upturned stop on the outer member at the to cotiperate the latter is the inner end of the thread passage and extending nto the pocket, a toe on the inner mcmber,and a stop on the outer member to cotiperate with the toe and posi-- tion the inner members when angularly moved into place within the outer mel'nber.

11, An antomatically-threading shuttle having an open delivery-eye and a threading device composed of two members made of sheet-metal and movable into operative position one within the other, the inner member having a thread passage and an overhanging head provided with a horn terminating in a beak, the top of the head being inclined inner end of the thread downward from the a frontwardly extended passage to the beak,

shield on the outer member overlapping the beak and inclined upwardly to a point above the beak and downcmved forwardly beyond such point, and a guard on one of the members overhanging the inner end of the thread passage, to direct the thread thereinto and prevent its escape therefrom, said guard being turned forward toward the beak to serve as a' leader it freely independently 1.2. An automatically threading shuttle having an open delivery eye, and a sheetdevice having opposite, upturned walls forming a thread passage, the bottom of thesame being upturned at its inner end, said threading device having a horn terminating in a beak rearwardly extended over the outer end of the thread. sage, a frontvvardly extended shield over apof the delivery-eye.

turned rearwardly over for the thread-and deliver ping the beak and downcurved toward the shutt1e-tip,'to positively engage and depress the thread below the beak, a retaining bolt extended transversely through the 'shuttle- I Wood andpassing through the Walls of the thread passage just abovethe bottom there-; of, and alfriction pad fixedly held in the bottom of the thread passage between the upname to this specification,

, 4 Witnesses: turned inner end" thereofi'and the exposed .10 portion of the retaining bolt and held from I transverse movement between the Walls vof the passage.

In testimony whereof, I have signed my two subscribing witnesses;

EDWARD s.- STIMP SCiN.

GEORGE E. CHANDLER, E. D. 'Oseoon.

in the pres'enceof

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