US969912A - Shuttle for looms. - Google Patents

Description

Patented spn13,191

lI. sNow s; G. sTma'Buws.` SHUTTLE ron Looms. l

PPLIUATIOI FILED JUKE 17. 1909.

wwonm. M

lemma. M

Y renee, in the county of Essex and `Stale of ISAAC SNOW AND GEORGE sTUBBiNGs, lor: LAWRENCE, MAssAHUsE'TTsf y kSHUTTLE .FOR'LOOM To all whom 'it may concerto: v L v Beit. known that we. Isaac SNow, a citi-v zen ofthe United States, residing at Law illassachusetis, and Gnoien: S-'iiinsixns subjectoi the. Kingr of Great Britain, residing at. said Lawrence. have invented new and useful lliiiproreiiieiits .in Shuttles for Y Looiiis, of which the following is a. specitivl() cation. i u

This invention relates to shuttles of the class in which tl'ii'eading devices are prov2do 'vided which connect with the thread-hole or eye, and the invention relates speciticall)` to an improvedY thread guidev where-b) the thread is kept ou its `wayY through a passage leading to the eye without looping, ,"ftoating, or breaking.

The nature 'ol'.tlieinvention is fullyy de scribed in detail below, and illustrated in p the accompanying drawings, in \\liich:-- f

Figure t is a plan view of the end of a shuttle in which the eye and our improved lf'ig. is front view of the saine. Fig. 3 is ahorizontal see- *ion taken on line 3 3, Fig. 2. Fig. 4 is a perspective view of the threading device or guide removed. Figs. 5 and 6 are sections taken on lines 5 5, and 6-6, Fig. 4, respectively. Y

Similar letters of reference indicate f forresponding parts. 1

a represents the front wall and b the hea-'l of a shuttle provided with our invention.

c is the bohhiii sustained by a suitable spindle el, and e is the thread extending from said bobbiii throughy the thread-guide,

' as illustrated part icularly in Fig. 3.

is a horizontal passage extending through the head of the shuttle,solisten-- tially round in cross section, f/ is a curved vertical cut; constituting a narrow passage leading down to the horizontal passage f. andy i. is a narrow horizontal passageor cnt. extending from the passage y along t'he head of the shuttle and leading to said passage f. The thread-guide is a metallic.

structure .consisting` of a plate or .sheet ot'- metal the iuain portion or hai-rel of which is cylindrical and circular and adapted to tit snugly in the passage f and providedwith reversely formed and disposed teeth below described, a series of narrow necks extending from and making a part of the outer ends of one of the sets of teeth and radiai with the barrel, and a flat longitudinal and by said necks at a distance troni the line ol circumference of the niain portion of theY barrel, whereby longitudinal spaces j are produced next the outer set ,of teeth. the said rib extending into a corresponding cut fronirotat-ing in the passage.

lThe barrel or body portion lc iofrtlie adjacent eiidof the spindle. This opening` or port p is curved at its inner end to prevent catching and cutting the thread, and extends from the barrel or iiiain portion L' through the rib n, its uiouth q opening into both the passages y and k. 7

At .sone or more substantially triangular substantially radial raised rib n'su-pported fUNl'lEDf S' ATES "Pi-EEST oFiiiCEaj-f '.vor groove'iii in the, head of the shuttle for 1 E the purpose of preventing the thread-guide y openings are inade in the barrel l' whereby teeth ii are formed. the central tooth .w lie- ;m. ....i...+....i :..ii.. ..i.... 1.. i. i [i ni; :Hohmann-iii). n itmguiai iii hiiupt. :Uitl tnd outer ones, that is, that next the notch p and that next the outer end of the barrel. being' 'partially triangular.` The ends of these teeth lu` do not come to ay .point hut are torined with the integral extensions or necks 1 which are bent up radially with the barrel and .support at. their outer ends the raised rib nr above described. .said rib, necks and teeth uf being integral. and the teeth w heing on true circles and corresponding with the shape of the rest of the main portion The edge t of the barrel extends to the ioo.

rel itself is in contact with the smooth wall of the passage f, the outer surfaces of the teeth are ground awa)7 from the line ofk the outer siii-face of the barrel (Fig. 5i. andV the edges of the triangular teeth il aie'- ground away for tliepiirpose of leaving narrow spaces between said teeth and the adp #tient edges of the lnain as illustrated in Figs: 3 and 4. Thus by `means of the ground outer surfaces of the i teeth u and the position of their edges with `of the teeth 1x and the edges of the teeth w into the bari' l ln praetie in threading theshuttle the thread islaidfor inserted .in the passage ff fat any Convenient point and isdrawn into Said paage and under the corner n into the passage li. and as`both ot these p;is; ages lead to the port )fthe thread enters this` port, and a.-;'it1 eannot. pass over the/rib i., which tit enugl)- in the head nor between the :nain or eireular portion ofthe barrel and the v,il of tl ge f, (the barrel tit'ting snugly in aid pas. i ge) 1t passes below Said'raib-ed rib and by ine-ans of the spaces i' orerthe outer fanrtaees ofthe rear portions of the teeth .1i

yend otl the barrel and under the teeth te, guidedr hy said neek i, and then over the ground portxon v of` the vvsurt'aees ot the teeth u. passingthrough the portion ol' barrel Il',`vr

spares between 'the edges` ot the teeth u, and

those ot' the teeth w over the points or end: ot' the teeth 'u into the barrel, as; illustrated in Fig. 3, and thence out through the outer at the eye .1/ ot' the shuttle, as shown in Figs. :2 and 3. By means ol' the ground outer surfaces of the teeth u, although the. inner Surtat-.es are on a true eirele, and li v"n'iea1is ot the Spaces j produced by the radial neelts whit-h hold the ribs l v awa)r from the main portion or barrel,r the this course it is eonrse of the thread is down through the passage y,` horizontally along the passage 1'1, into the port p,

under the rib u and through `the spaces j, and theuee over the teeth u and under the teeth w and the teeth u into the the thread-eye.

around the points of barrel and out through "hile the thread is talting praetieallv in a straight line from the port p to the eye, as illustrated in 5i". 3, andit is etieetually preventet'l bv the necks z' whieh raise the rib and prtiduee ample space between it and the broad ends of the teeth w, and by the'ground outer surfares of Said teeth u \\'hertb vr space is produced between the teeth 'u and the wall of the passage l',v from catching and breaking. although the v the adjaeent. edges of the Sethl of teeth '1t and .':f are narrow. The edge of the barrel is eut away at i" opposite the port 7) in order to aid 'in guiding the thread under the first at any point tooth tr and over the first tooth u.

spares between yover the teeth Haring thus fully described our invention, what we einhu, and desire to secure by Letters Patent, is:m

1. In a Shuttle of the eltaraeter desfribed having a transverse eirenlar pasilfage ron neeted with the interior ot' the Shuttle and extending through the head tothe outer `\u' r` face and a passage extending front Saul transverse pasaafft: to the upper snrl'at'e ot the head, a tln'eateguide etiunn'ising a barret eirrular in crore. Section and fitting:r in said eirtular paasage, .said barretta-ingl provided with a port openingV into The interior of the shuttle and registering with the inner end of the passage' which extends to the einer surface of the head: arid said barrel being further provided with two 'evtbraelv 't'ruanlvl and disposed sets o't'vteetlu'ihe teeth in one 'eet being' provided at their outer end A with substautiall \Y radial extern-ione, or neelts sul porting and integral with a raied rib .vhereby longitudinal spaees or 4tun-ning are. formed between said raiiaed rib and tfno peripher)` ot', the barrel, and the teeth in the` other get extendiuginto 1.---iehe5 between'. the

yteeth in the tirst named eet and rorresgionflA ing approximately in shape to said notehes and being' l'ornied on their ima-r eurtaeea nl, a true eir eorresliotn-ling with theeirole of the inner lurtare of thrbarreltalnl having sev their outer yniraeera ground dou n toward the einlS of the teeth whereby Said. Surfates iw ward the ends ol' the teeth :tre tot-ated within and at a tlihtanee vfrom the line 'ii' the outer .snrtaee oi' the barrel but outside the. line of the inner Suri'ate of the barrel; for the purpose of providing spaett'or the passage. o. the thread between said rib and the barret Surfaees into the interior of the barret and under the teeth which are ignovided with VSaid neelts for upporting the rib.

2. shuttlel thread-guide Comprising a barrel eirenlar in eros seetion and adapted to be plat-ed in a eorz'respttidingly shaped paswig'e in the' head of '.t slntttle. provided with a passage extending' from the eireular.

pa. :\ge to the exterior of the head, Said barrel beingr provided with a port adapted to eonneet with both otsaid passages, and said barrel beingf further provided with two revel-rely formed and disposed sets of teeth, the. teeth in one set beine' provided at their outer ends with substantiallv radial extensions or neeks supporting and integral with a raised rib whereby longitudirnll spaces or openings are formed between said raised rib provided with the ground and the periphery of the bari-eh and the.

teeth inthe other set extending into notehea` between the teeth in the first named set and Corresponding approximately in Sha pe. to said notches and being formed on their inner snrfaee on a true eirele corresponding with the eirele of the inner surf-aee of the barrel and having their outer surfaces ground down toward the ends 0f the meth whereby 'said4 surfaces toward (he ends uf the teeth :m: located within undr af :i hsmnce from the outside the hm: of lhe inner surface of the hurx'ei'; fm' the pluposeof providing pneu dbf-the. passage of (hf` Ihre-ml lfxeveenY said rib and the barrel over the teeth provided with the ground Surfzwes into the interim' 10 of 'Lhe barrel und under the teeth which ure I provided '-"th Suid necks fer supporting the line uf the outer sn-i'fnve of the-barrel but :mines to this specification in the pr two subscribing witnehses.

In testimonywhereof we have signed mn' MLSAC SNOW'.

GEORGE STUBBINGS.

"it-nesses': l

Joux XV. Dun-Y JUsr-:Pn Slnsc'rt'n v @sence ofk

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