1 1 7 1 4 , 1 2 6 Patented May 21, 1920. UNITED STATES PAT'E- NT OFFICE. GEORGE B. COCKER, OF GASTONI-K, NORTH C-lk-ROLINA. STOP CONTROL XF.ANS FOR TEXTILE MACHINERY. Application filea J-aly 13, 1925, Serial 1,To. 44,466. Renewed October 10, 1928. This invention rel,,Ltes to machines or ip- view taken is indicated by the ai-rows V-V parat-Lis such as "beamin " @or "ballin,(,-y in Fig II. 9 -warpers" emp 103Ted in the textile industry to tinwincl yarns from spools or bobbiiis r) and to mass them into t forn-i convenient for use in looins or; in handlina durin(y n bleaching, dyeing, ete., and, more speciliellillv speal,iii--, lids reference to stop coi,.trof means i@struniental in a-Litomatically 10 causino,, stopp,,i,-e of the apparattis in the ever.t of breakage or riipture of an y one of the yarns. Of stich means, two types are geiierltlly employed, one operatilig n-iechanically, and the other electrically; and 15 it is witli the 1,,ttter type that this invention is i-nore, particularly concerned. In devices of this sort as he etofore constriieted, considerable diffictilty aild trolible has been experiencecl on accoliy-it of their inability n rm.11 slack in th 20 to compensate f or ab o e yarns due to ii I iieven initial -windiiig of the ools or I bobbins from whicli the yarn is S crrclwn, or tlie accidental formlition of folds or 9---therings therein, so that stoppage of the 25 appar-atus was often broli O'ht abolit without aiiy breaks or rliptures actultlly occurring iii tl-ie yai-ns. Ainono-st the objects of ir.Ly invejition are to overe"me the clifficulty iioted and io cor@l 0 rect various striictural deficiencies heretofore prevalent iii electric s.top coiiti-ol clevices so as to render them imiiiuiie against easy dei-ano-ement, and thoroughly reliable in operatio@. 1115 One way in Nihich this clesider,@ttum n-iay be convediently att,,tined w.ill be readily ,tpparent from the deta-.I,ed description ivhlcli follows of a typlical emboetii-nf.-.-Lit@ of iiiy in)Tenl.i-on, the'appeiided claims serviiio; to de40 fiiie tho , se features which I bel'Ieve 'o be cl@ltirely new and noyel, aiid ivholly witliin ti-ie scope of the presel-it iiiiprovements. With refere-Tice to the drawings, Fi . I is 9 ,i perspective vi ew of a port-@on of a ii,- ,trp45 i--.io, ,tpl)aratus slio",ing m)7 improve@t stop @-11 -L control means in association: therewitli. Fig. II is a fr,,t I -9-men'u-ary perspective illust,.,,it,@,oii o'L the svt'op cortrol nieans viev,,ed froiii a difterelit ,trg-'Le. ;50 Fio-. III is a sta(,Tgered seletional view tak,--ii ,).s i-ildicatecl b the ,tr@ ows III-III y iii Fig. 1. Fig. IV is a p-Irsp@ctive view of the iiiovable member of the stop coiitrol mealis de55 tached from the apparatus; and Fig. V is a fraginentarv detailed sectional The I)ort;,,oii of appai-atus lierein illustrated 4@s ordin@trily knowii as a "creel"@, 60 ind will be obseii,ed ,is of stand,,Lrd constriietion geiier,,ill in that it coillpi-ises a n y serie's of spaccld parallel tirii.-ights or posts 1, 2 -vvlilcl,, are @)-i-oupecl in ptirs, eacli pair stipp-i-tiDo,, b,-,t,iAcTii theii, a ),oi-tical S(,ries 65 of spoo'is or bobbiiis 3 wliei-efroiii the yarn ound ' the process of ivarpin(, after is uiiv.,- III a well known mttnner. The. tiprights or posts 1, '2 ai@e, in the present instance, made of some dielectric iiiaterial, preferably well -.9 seasoned iiood; and their opposite encis are en(Yaged iii socket fittin(Ys 4 secured t"- opn 2m posed upper and loiver headei-s of wh,@ch only the top one is shown at 5 in Fi(y. 1, tie rods 6 bein(y einployed to iiold the frame 75 )-idly T par'Ls ri,(, ir,- asse-riibly, as shoivn. The ti-tiiinio,-)s @ of t,lie spoof,, or bobbiiif, 3 ai-c detaclilbly cii,"agecl in stirrtip br-,tckets 8 (see Fig, III) ivhich are accoin@iiodated in loiigitlic[inal i@ecesses 9, 10 respe,tivel3r so foriiied i'n the iniier sides of the upi-ights 1, 2 at the Year. The usual opposecl -3tectrit-,al conductoisti,i-ps 11, 12 are iii each iiistance -tttelleOL in spaced relatloji to the rio-lit aiioled v)Talls of a longitudiiial recession 13 S5 foi-liied in the oiiter face of the Post adjacent tllle recess 9 previotisly i-eferrecl to; Piid eacli of- s-,tid posts I (except the last one at the lef t. of Fig. I) has secured to it ill a coilveniev'@-, rii,,tnper, a eoextensive n-ie- ,) o tallic i,od 14 about whicli the yarns are passed iii leavipg said spools. As is usuil i@.i electric stop sys'Lems of th-, ',Yre r-lforre-,l to, i-vith each spool or bobbin 3 -Ls assoc-lq'Led ,, coi-itact control rq@-ans 95 @-.dap'Led. uporl r I)tl-ii-e of the yirn. to autoiiilltt-ically establisi-i or close the eircu-Lu- ))et,,-,,een the co-.idi-ictor bars or strips 11, 12 and t',iu<3 eite,,t enei@,iza'L@lon of the i-,ilaiiet n or o'LYier.electric device (not sliowii ) rel'ecl loo upon to br about stoppage of the appai @, 0- ratlis. As "IOwii, the circuit closlii(y riieans of my ;.nventio,.i compi-ises a movab' iiieii-iber or drop iiire 15 (,,is it is orc[inarily teriiied techii'Leally) ad@tpted to be qoi-ii-iplly 105 support(@d ii,, stispei-ision by the yarn I)assi.-i- ftoii-i tiie col-responclin(y spool or b,,)bbin I 3, and a fixecl -uiCLe eleiiient 16 er@-ibodying yarn eii(,,tgino- ledo;es 25, 26 -v@'hicli coopei@ate with the ii-iovable niember 15 in the ip,,iTi- 110 ner hereiiiafter explained while said Tuide element 16 is secured to the post 1 by a 17714,126 s . crew '-)S@ The movable member 15 1ATill be observed as of rio-ht angled configiiration characterized by i, co n-ipai@atii,ely short seg1--yient i7 irom which exfends, laterall a y@ lopo.(@r secment 18 proi,-ided ivith a clos,-cl -oass, --e of the -v-,@rn. To 'obtain eye I - 9 foi i, the LdNTaiit@(yes Zf- combined stiength an@'t li(,htness irL the c6iislurtict4.on of :th6 m6mt) - blir L5,,! ciiiploy -, siiigle sti-,incl of wire 10 tl-ie eye 19 is formed centi-ally by doubl6 @iipei-pos,-cl, looping in a manner ob. u@13 f@oi-n !V. B--y6nd the eye 19 VIO t'lle en@(IS C)f 'Lhe IVI@ ,,e str@%--,id are C()nvei-gecl ,@Ls,at 20, 20 to a l@oint 6f meeting, and from 1 5 theiiee exteiid in @ contiguous p,,tralleli.sm to their torm-iiiE;,Is -whicli. 9,re bent over as at 1411, 21 to enib,-fice a loeai@ing slecite 22, see Fi- -11 the sleel-,,e 22 being lielcl ip- pl,-,ce byt'.r-e,is'-,n of h!),vin(y its opposite erds 20 turned 6ver f.Leinu washers 23. As an attaching means I usE@ a screav 24 i-ii motinti-,lg each of the membefs 15 to the i-ipi,ight 1, 0 sa;d sere passing,th@ i-igh an aperture in the conductor sti-ip ll.. By this coilstruc-- 25 tion@ it will be seen that t.1-ie i-iien,@oer 15 isItceol@ded free pivotal movellient on tl-ie stud s6rew 24 to the av6id,,ince of any bind4, ing aelion as so,iiietim- es o,ecurs with the conventional form of drop;,",ire in which a 30 term;.nal clirl alone serves as a pivot@ beiri n 01@. In order to insure -uo6d ele6tri-c,,tl contact ,it the regions of piv@'t,@l atta@lilueiit of the members 15, I oitset the conductor str.,b 11 @35 at these regions,. preferably b,@ slioht o-Litward bo,Aving or bulging as shown to best ,tdvaritage at ll,a 'a Fia. V. By i-esortit-ig to this expedient tncl choosincy a, harcl qliality of brass as the material for I the strip 11 (in40 stead of soft copper as gene@rally custoniary), the bulye 11@-I may in each inst,,tiace be macle to exert jlist stifficient yielcling sprii-ig pres,3tire ,tgainst the contigtious en&s of tl-i,be-,trin@-, 2@ of the member 15, to - ,Dredeter45 mi-.-ie n-ietall,@c contact without ilidu6in(y bi-ndin(v, sucl-i pi@esstire-being easily reo-tilat.ible by partial tiirninu of the screw 24 The arrangement just describeOL obvi,,)tes the necessity for, clependino, upon coiitact. as be50 @unveen the shank of the @erews 24 and the edge of the receiving hole in the strip 11.1 fo@ tl-ie@ purpose of electric contiluity, as. lias crener,,tlly been custom,,lry heretofore, incl -NNhich,: on, account of its uncertainty, has 55 -iven r'se to c Tisiderable diffielil'uy in a6t-Lial 0 pr,,tetice. In operation of the appirttils, the n-iembers 15 -will norinally occui)y the u-Driclit position shown in Fio-.: I under the constaiit 60 rju'Ll 6f the yarn, Lnd be free to bob or vibrate back and forth in responding to ineiclental fltictuations in tension. @lthen in the nornial position, it is to be particularly n6ted that the center of aravity of @uhle mem65 be:@ 15 is aln-ios4u directi:@above the ivot 24 p so th,,tt but a very light ancl neo-ligible draob zn is imposecl on the arm. This feature is 6f extreme importance and gre',Ltl3T, i@educes tl-ie p I ov,,er r(,quired in ope@atin,- equipments of lprge ctpa-.ity -where countless yarps are 7o@ -W,,trped -,)t one time. in tl -ie event 6f -,tbnorcltiel to a-.iy of the catises heretof ro r-qentioned -or to overrunniiao, of the Q s@,L)ools upon st6T) LpparatLis, th p,@tcre of the i e members 15 will fall tinder the 75 iiifltieiice of gravity, 'uo a position stich as shonvn ii-i Fio-. II witl-i res-Lilting formation iii elch insta ne-, by coope-,@ ,ttion o-@ tlae ledoes 25 26 on th6 fixe'd elemeiit 1.6, of ,i, divertne-,l saddle loop L by -Nvhlch i-he ineinber 1.5 is 50 stipporte-,l aiid held from closino- the clr"tllt across @ tiie strips 11 12. Oii,ing to the ll'beral r,@tnge of a.-.,-gtilar moire---,@ient accbrded the -Tnen-iber 15 (wb.icli -will be not--d as substant,ially 90") tmi)le -varn can be absorbecl 85 i-ii tl-ie loop L to compensat,e fully for any of th" contirioe-iicies namecl -withotit re-qi-ilti-,-ig in Circi-iit el osLir,-. Upon rupttire of the yal@,-i, the meiiib--i- 15 will simp-ly drop to the i'ti I I eitent determined by engagement Of its 90 angle Cori . ier with the metalli@ strip 12 to close the electric eirctiit and cause automatic stoppio,-e of tli-e app-,tr,,,tus in the known m,,inner. The liber,@ll proportioninu and ro-Linding of the e3,e 19 of the member 15 as 95 shonvii re@iders the op'eration of rethreading very I easy of adcomplishment, and also facilitates free I)bsitional acljustiiient of the yarn at all times to the avoidance 6f an y restraint thereupon. 100 Having thus, described my inventlo-n, I claiih 1.@ The coinbinati6n in electri-c stop con-, trol nletns for textile iiia6hinery of spaced current conductors; a PiVotally@uspendeld 105 gravity-a.etliated st6p control member in eircuit with one of said condticuors, sa@id member being formed fr6m a singli@ strand of Avire to i:)rovide a v,-Lrn-eye -with the term!- nal ends relati-%, to embrac6 a bearing 110 sleeite; aiid cle in close proxin-dty i ictli.e@eto h, V @,lges functional to detern-iine f a diverted slackcomponsatino- saddle-loop in the, yarn -whei,-,by the stop. control m-,mber is normally 115 floatingly suppor'ecl and adapted to accommodite abnormal slack in iTidividLial yarns vviuh6ut sto.-DiDin the mq chine. m -nber top mo2. A grai,ity control ei ior s tions of textile machinery con 'Uructed fr m120 0 single strancl of wire with a yarn eye formed centrally of the qtrand, the ends of the latter ex'uended in contiguou I s @argll elism from the eye, and the terminals of said ends clirlecl for P-'Lvotal mountin 125 3@ A oTavity control 4inber for stop ni6tions o-@' textile machinery coiistr-Licted fioiii a sin-le strand,6f wire v@ith a el6sed yarn eye forn-ied by clouble superimposed loo-Dinz centrally of the strand the ends of 130 i,714,126 3 the latter ex'Lended in coiiti-uous parallelism f l@oi-ii the e3,e, a.-id the teri-ninals of said ends curled for pivotal mountin(f 4. A grpvity control member for stop motions of textile machinery inel-Lidina a part for-n-iecl from a single strflnd of Avire looped ce-.itrally to form a y,,irli eye, its eiicls ex,-ei-ided i-n contiglious paralleli-sm beyond th@e eye and fiiiished '"Iith terr@iilial curls; 10 and a beariiig sleeve embraced by said citi,'.s. 5. A gravity control member for stop .1'r,otioiis of textile machinery inclucling a foriaied fr6pi t single str,,i-.id of wire loc)l)ed cep-ti-ally to forin ,L yarn eye, its ends exLC@11(lecl in cont-l(-,tious parallelism beyoi-id tlio eye and finislied ivitli terminal curls; a be,i,ring sleeve enibr,,tced by said curls; and f acing washers oler wliieli the ends of- the sl.eeves are flanged. 6. In electric stop control me-,ins for teX- 20 tile machineri,, the combination of a pivotally molinted control member, and a current conclue@'i-ng strip pierced to receive a pivot screw for the cont,.@ol member, saicl strip being offset at the region of the pivot to exert 25 slio@ht yieldiiig I)ressure, re(yulatable by the screw, a,,tinst the pivot bearing of the control member for tl-ie, purpose of iiisurin(Y good ele,-trical contact. In tes(-Ii,.iiony -wliereof, I have hereiinto @30 signecl my narie at Gastonia, Nortli C,,Lroli@,ia, this Iltli d@,,y of Jtily, 1925. GEORGE B. COCKER.