2 1,842,932 this rail. Withiii this ,,,Iecve is mountecl a brass bushin (r 17 aiid iiisi de of this brass biishing I nio-Lint aii anti-frictioii bushing 18, both bein(y secured a(Tainst rotation to the sleeve 14. Extending ILI)ivardly thrti this aiiti-friction bearid- is t yarn guide ttibe 19 on tl-ic tn tippei, I)ortioii of Nvhicli is nioiinteci a metal pacli:a,gesiipl)ortijig eoiie 20 NNIiich is fixed 10 to 1,1-i@'s @-Iibe bv i b-.nding screw 21@, aiid aii -i,nti 1 -fi-'eticii ball bcai-in- 22 is mounted in the bottoiii i.-ecess 23 of this coiie to cari-y the wei,@-ht oi the tube ,Lncl the parts secui-ed thereto. i5 To the lower eiicl of this guide ti-ibe ;s seClir,@d -t whirl 24. Iiito slots 19a tt the loiver end oi' this ivi-,ii.-I ai)(I into the end of the L'i,.btilal' -tiide 19 1 'iave iiiserted the iipper c,,@-id 25 of ii-i iinpro--@,(l tavist, 1-iolder 26. 2o Tli.is hol,- Ter is I-Lereiii slioiiii as bein, formed frc,iii q strip oi- bla(le of iiietal, see Fi(ly. 41 the same beiii- pi-eferibl,), tapere,(-.1, bein@; wider at its iipper end 25 arcl narroaior at its lower encl 28. This bl,,tdo is then twisted ilito 'clie foriii best illi-@stra'Led in !('ig. 5, le,,tving a pair of laterally-ex'Lei-idi-Lig wi"lgs 29 oji its tipper end to eii(ra-e 'uhe yprii wheii the spindle st,irts to rotate and co,iduct it into the groove 30 of the blade to be -,wound abolit this member aiid lie a(yaiiist the flat loi)7er end 28 thereo-@ to hold the twist i-ii the y,,trn and preveiit the yai-n f rom tv-7istin- above the lower en(i,a(ylng end of this holder member. The upper end of this bade i-s preferably crroovecl longittidinall-@,, is it 31, the g roove beiii- in line with 'Ulie axis of the spindle 19 so is to periiiit of re-,idy passin(- -f the tl-ii-ead bv nieans of the tlireadii-ineedle, thrii the t@be incl out tl-irli thc,, lower end thereof, see 40 Fig. 6. Below this tivist holder 9-6, 1 have i-iioui-ited ,i p. 2ir of f eediiig n.ip rolls 39- a,-i(-l 33 ivhich a,re SI).i cocl fro@@ii the twist ].iolOLer the reqiii-red distq@nce qii(-! those feed rollis ,ire arratio-ed to perform the do-Lible fuiietion of first cooper,itiiig initl-i the tiiist holde@-- 26 to hold t@ie twist 9,t the lo-,ier end of the t-,visted portion of the iarii is the tvvist is set thc,@.-ein and seeonct thev serve to feed the ti@,istecl yarn at @i 50 i)roporti , on,@tte, speed rel,,ttive to tl-ie twisting SI)eed of 'Lhe twister head to accurately deteriiiiiie the iiiio,,iit of 'uw'ls'c, per iiieh, thau shall I)e set iiito the ,-ai@ii. The b,)ttoiii roll 3' of t'ils of -I've I d 1-olls has its bef,.riiig in thf, 55 eii(I f-rqiii(,s iii(I is in the iii@tnner presel-itlv described, the 1-ipi,)e-, rol.1- 3q Oi' this p,,tir of feecl rolls is inounted ii the ariiis 34 ivlii-ch ai-c i)iio'Led ,'LI 35 in the frarpe @o 60 rest b its owii iveiyht upon the lower roll 33. The ff iiidi ng siirf ,.ice of ,it least one of tlie.,@e i,olis is i)refer,,i,bly posit;-onecl to lead a-@, d o,iil (1(@ tlie, y-,trii ii alilo-niiieiii-, v@-i-tli tl-cixis of i-o'---.it;oii of "--lie tia-istei- hea(l so is to re(Itice the trii,elliii2 friel@-ion on the yarn anOL c,,tiise thB yarn to remain in operative eii"ageiiieiit with the rotattble tivist holder. Any clesired n-icans may be eiiiployed for takiiig tip the tavisted yirii ,ts delivered fi-oiti Lhe feed rolls, one means being hereii-i 70 trlted A,,,Iiieh is that of providing a drive roll 36 on which is iiioi,,iited a packa(,e roll 37 to I)c zn 1-otated by frictional eoii'uact with the roll and the y@Lrn 38 iiity be laid 1,Lpoll this pack,,i,ge by the tm. i,ersi.,l,, ,tiide 39 oi- b@, aii,@7 75 of the usual packaoin(Y -,viii(ling devices. TI-ic tANistei@@ liepcl @n(I t]-ie fec,,d rolls ai,o clriven in t;-i-iie i,,,-ith eacli other f roiii the iil,,, @Lji shaft 44, the tiiisl--er head tlirti the t)olt 45 aii(I the ileed rolls tl-trti 'Llic 'Lrain of (Years 46. 80 In soll'IPI iiisttiiees it is foiind of ad i,,,tntaL,-(@, to provide a threading device 40 -@vhicli ii-ia,,T be motiiited oTi the stan(],,trd 41 ,Illd p'lvot-,c(l u at 42 'o be moved froin the positioil shoin,ii iii -1@tijl lines iii Fig. 2, to the@ operatiii,, I)Osi85 tio-a sliov,,,n in dotted I.ines in ,vhich la,ttcr position it is oni.y necess-,try to rotate tb.c@ 'il,.tiidlc 42, iv]-iieli the tlireadiii- ton(rile 43 'Lo b.,, extendediiitoen a(,eniei-it,,vithtlle 38 t( thre,,id it thrii tl-ie tiibiil,,ir spindle 19 )vliere 90 it may be engaged by the, haiid of the ol)erator @uo be eirried doivii between the rolls 32-33, to be atttched to the packagi.-.lg meelianism above described t.Tid by the use of ii-I), iml)roved form of twist holder it becomes au95 tomatictlly threacled when the machine is started, which ctiises the yarn to wilid itself into the groove abotit the twisted shanl@: 26, thereby eli.mili,,tting tlle human equatio-q Ind 100 the avoidiiig of the mista]K:e of oiiiittin-- to thread the yarn, lvhich if omitted woill(l spoil the varn. Then a,gain, by the formiiig of this type of twist holcler ii,]-iieh h--s no moving parts an(I is rouatecl on the axial center of tlipt)vis4Ler 105 hc,,,,d. the michiiie m-ty be ruii it -,t tremenooiis velocitv, miiltiplyipg m,,iny ti--nes thc, o,,itpiit of this" 'macliine over the old style t-wistei@s .ind .tt tbe sai-ne time produce a stron(-er ytrii of 1-iiglier (,rr--de, with ,L more uniform t,,vist. 110 M,,T improaed twist holder will ser-,,e to hol(f'the twis4u i,-i strands of ivire, asbestos., or any other material but I do ]-!ot desire to be restricted. to the -Lise of my improlted twist liolder to a t-wistin,- machine as the s,,,ii-ne mai, 115 be emploved for hold;.Ti("tlle twist in wiiidinl-r micliines, sl)innin- inachines -,iiid -.,nv otlier iiiqchitio wliere it is adapted to oi)ertte. The foreq@oiii@x (lescript;,oTi is dii-ectecl sole120 IV towai,ds the co--Qs4Lriietion illiirtr,,ite(l, bi,lt, I clesire it to be iinclerstoo(-l thtt 1 reserv(,, tlie, privile(,-e of resorti.p- to all tbf,, - iqecb,).nieil eb.anq@es to wbic'il tl-ie device is siise,-.pti-ble,, the in,vention bein@ defined ancl limited onlv by 125 the terii-is of the tpl)p---qded claims. claini 1. Tn ,i tw-1,@tiii(r iiiieliirie, i T-ot.Ltalilt@ t)i,istei.- licar., i, ttil)iillr c-,i.-I'yin(, spin dle in sa-L(i beid, ). yii-n 't.-,vist, liolcler coiiiprisi ng a shink member havi.ng i lieli-

1,842,932 3 c,,,,Ily clisposed yarn receiving groove therein illoliiilued in s,,iid head at the lower end of tb-e Sp;-ncl,le, mc-aiis spaced from said twist holder for 'Leedinff tl-ie yarii and holdiiig the other elid of the ti@,ist, ancl a threading device loet)ted adjacent the hollow spindle for condu@c'@li--@ig the yarii to be twisted thru the spindle' n III v, tivistino- inachine, a rota'Lable head o a @,uloular yarii s-,,,indle fixed iii the head and tl-irough Ailiieh the yarii is led, a yarn twist liolding iuember iiiounted in said head at the e--,,.-d o-@' the spindle with its @txis in stibst,giiti-@l PIignineiit there-with, said twist iG he-1,Jci@ haiii-ig a helical yarn receivino- and icling vi-lin@yarn gti ur(ove into which the tra 4 s er@d a pair of cooperating yarn I lo-Av,ist lioldiiig feed rolls spaced from the del .11 ' Tel-Y ell,-l of said twist holder. 20 3. Ir, a tivistidg ma-chine ' a rotatable head, ,,- ttibul,-,r yarn spindle fixeci in the head and 'Llhrougl-i -@,,,hich ,-he yarn is led, a yarn t-vvist holdii-ig blade htving one end mounted in s,tid lie,-c! -?.t the doliv(@ry end of the spinclle its ax-Ls i-@i subst,,tntial alignmert therev@ith, said blacle h,,Lving t. t-wisted port@ion providing a, helical yarn receiving and guiding groove- i-nto @vhiel-i the traveling yarn is dr,,t-@i,n aiid retained to resist a, relative twist30 iiig actiop, and a pair of arn twist holding y feecl rolls sp,.teed from the delivery end of said t,ivist holder. 4. In a. t-wisting machine, a, rotatable twister head having a tubular yarn ouiding 35 ri-)i-.idle ar-d arrano-ed to carry a packaae of tliit,-,7.isted yarn @t one end thereof and tl-irougli ivhi.-h spindle the y,,irn from the -)ackq -ge is led, an, elongtted yarn t-wist holdin member h-,tvin-o- one end fix@ed in said head 40 a@'.- tli,- delivery e@ncfof saicl spindle and in subst-,,,iiiti,,).l axial alio;nine-nt there-witli, said hol.deil havilig i helica-I yarn receiving and gtiidin,g groove iiito whieh the travelinz yarn iioin the s-oindle is drawn, ,tnd cooperating ,y,,i rn t kii-st holding and feeding ineans spaced froni the delivery end of said holder m6-mber. 5. In a t-",isting machine, the, combination 'th , -",I t hollow spindle through which the yarn is lecl@ i ytrn tii7ist holding meinber mounted @it the delivery end of SILid spindle in axial Ll.giimeiit, tl-ierewith, said twist holder having t helical y,,trn r4aceivinLy and guicling groove al.ong its length, me@'ns for guiding tl-ie yarn 'Lro@.ii the delivery eiid of the spindle to one si-de of said holder member, whereby the tra)Teling yarn is c.aused to enter sa.id groove thereiii, anci meatis spaced from the delivery end o-'L saicl twist holder to feed the vari-i 1,1,nd hold the twist. 6. Iii a t-wist,ing machine, the combination ii,ith,i hollo-w spindl6 through which the yarn -;s lecl, a yarn tivist holding blade havinlx one eiid mounted at the delivery end of said spindle in axial alignment therewith, said blade liaving a tivisted portion providinl, a helical yar.-i receiving groove into which @he tra-veling yarn is CLraivn, the receiving end of stid blade having a portion laterally offset to provide ,t guide for dire-,tin the yarn to one .10 s.ide o-I the blade, and a pair of feed rolls spaced froin 'tlie delivery end of said holder blade to feed 'uhe yarn and hold the twist. 'T In a t-wisting iiiachine, a twisting liead having P. central bore throiigh wliieh the, yarn 75 is led, said twisting head being slotted at tl-ie yarn delivery e-nd, and a twist holder havilig aii elongated body portion with ,In axially d.isposed helical yarn receiving and t-wist holding groove said holder being iiiounted in 9.0 said slot in axi'al alignment Nvith said tivisting head. 8. In a t-wisting machine, a t-wisting head having a centi,al bore tl-irough which the yarn is lecl, and a t-wist holder secured to sa.id t-wist- 85 iiig head' at the @,arn delivery end in ,txial ali44nmen t ivith s,,iid twisting head, s,,tid twist holder havin- an eloiigated body portion.w.ith aii ,txially ctisposed helica.1 yarn receiving a-D-d tw.ist holdiug groove. f)O in testimony whereof I affix niy signature. WI LLIAM WRIGHT C LLINS. 05 100 i,,o l@25

Patented Jan. 26, 1932 198429932 UNITED STATES PATENT OFFICE WILLIAM WRIGHT COLLINS, OF SEE)KONK, XASSACIIUSETTS TWISTING MACHINE Application filed April 13, 1929, Serial No. 354,785. Renewed October 3, 1931. This inven,L-ion relttes to iiiiprovements in t-",isting iuachines and the like; and the,ob4 ,ect of this inventio is to provid a simple n e ancl effective twist hol(ler wbich ma be y threaded a Litomatically by action of the machine in ivhich it is operatinc,. A further object of tiie invenilion is to pi@ovir,le the twist hol@der whiel-i is carried by the tAA,ister head with a lielical groove into which 10 the stra-nds to be twisted are drawn to hold the twist as set therein. The ilivention f Lirther consists in formijiuthis twist holder of a blade of material twisted into helical form and arranged with its @15 axis in stibstanti"Ll all..),nment with the axis of rotation of the 1-iead @@herebv the rotation of this tnvi.sted blade serves to a-LLtomatically engaae and carry the yarn into the helical -roove therein to hold the twist in tl-ic 'y 20 str,,tnds dtiring the twisting operation. Withtheseandatherobje6ts in vie-w, the iiivent,.'Lon consists of certai-.i novel features of construction, as will be inore ftilly described, t,iid p,,trticularly pointed otit in the appendecl claims. In the ,tecoiiipanying drawings. Fig. 1 is a plan view of my improved tivisting i-- qtchine. Fig. 2 is a side elevauion of the i-nachine 39 partly in selltion showi-Dg my improved twist holder in position ii-i the lu--wi.ster head and also showing thetlireading device arranged to be positioned to thread the yarn thrli the hol@ loiv spinclle. 35 Fig 3 is -,t sectio-nal view thrti the twister head shoaviiig iny improved tVIT;@st holder as mounted in the head at thplower end of the spind,l@,, also showing the tl-.ireading clevice as -,orcing tl-ie varn tl-irii tl-ie ti-ibul-,Lr spindle. 40 I"ig- 4 i@ a perspective vie-vv shoiving a tapered blank of sheet metal froi-n -which the tnvist h6lder may L-e formed. -T"i-. 5 shoAAs tl-ie tapered bl-,Lde of inetal as tD hf,,iting been twist-,d into tlle desired helical shape to receive the yarn ind holdilig the twi.st therein. ri ig. 6 is a section on line 6-6 of Fig. 3@ show@@iig tl-ie bl,@)de as set irto the head at the lo-,ier encl, of the tubtilar spindle with a. groove in the blacle registeriiig -with the hole in tlae spindle to permit threading of the yarn 'Lhe,,ethrough. Fig. 7 is a sectio nal view of a yarn-threadin(y itev;-ce partly in sect-ion. n It is found in the practical operttion of 55 spinn-Ing machines that are to be run at a, very high velocity, iiecessary to provicle a yarn twist h6lder in the twister head with itm axis in substantial aligninent with the axis -of rotation of the head 'uo av6ld vibratioii while c)( ]:,uiining at this hi-gh speed; also in order to facilit,,tte the th-readitig operation ai-id m.ake slire that the head is properly threaded -without being obliged to depend upon the human element, I h,,tve foriiiecl a t-wist holcier with a 65 1-ielical groove into which the yarn is automaticglly carried and wouncl aboiit the holder by the coinbined rotation of tl-ie head and the endways travel of the yard,l by which constrliction the spindle may be quielkly and 70 easily threadecl aild the machine run at a speed severtl helinderd per cent faster'than the old style spinning 1-nachines of tl-ie rino,- z' tnvistino, c--p-twistin@27 aiid flyer-twisting types. Also it is fotind of advantalre to pro- 5 vide a threaditig device -Nvh'ieli may be readily positioned tbove t.he elicl oT-. fhe tublilar spiiidle tb en(yaoe and ctrry the thre,,td thrLL the spindle to be gtasped bv the operator and n-iaiiip-Lilated to comi,)Iete the threading oper- 80 ation; and tl-ie f ol!6wina is a detailed description of the present embodiment of iny invention ancl showi-no- one construction of twist bolder by which these advantageous results inay be accoiiiplished - 85 IVith refereiiec to the dra-wings, 10 designates the eild frames of the machine, which, of coiirse, i-flay be pl@,,teed any desired distance apart or ,iri-angecl to support any desirecl iiumber of spaced twister heads ancl their 90 operating iiiechaiiism, one complete unit oill.y being herein sho-wn. Each end frame is lierei-n sho-wn as be@in.g provided -with ai-i upwardly,--.nd forwardly extending arl-ft 11 supti porting a cross-bar 12 ill I-lich -IC tivister 9 heacl 13 is rotatably iiiounte This twister heacl coiiiprises a sleeve 14, see Fig. 3, @havi-.ig a collar 15 below the bearing rail 12 with a nut 16 threaded oiito the per end to bii-id agtinst the upper face of UP