Патент USA US2403724код для вставки
July 9,` 1946. 2,403,724 _i. J. KAUFMANN, JR Y LOOM SHUTTLE Filed March 4, 1944 A.; J0 11796' l MPE@ Patented July 9, 1946` 2,403,724 STATES PATENT oFF-ice die :Manufacturing Company, e Col'îi’l’ïratienïef "'PePiliiîl l‘VAilpli.cation March f1, 194,4, SerialNg. v525,005 (Cl. 1397217) ' 1 , 2 l'i/iyfinvention l'relateslth vshuttles for looms, and c 1 fly' tb 'tnep?ovision of improv d meeiie, m eiie.. ehuitie’e, fer maintain itfïelát sf , , , „ . , . device mounted thereinembodying the main feaf tures ofthe present invention; .. ` " ' " ' Fig. 2 is a longitudinal central sectional view of the shuttle shown in Fig. 1; ‘ '" A " Fig. 3 ils >an enlarged end elevationr of.- the threading block detached from the shuttle, lillus trating more particularly the position of the ten# In the shuttl'eywhi‘h are used in thefmodern types Vof automatic looms, )thereN is, usually ‘pro sion members therein; ’ vided e iiiieeding'bleek er» the Y.reireiidfef,the ~ shuttle> vwhich çiis lfn‘ov'ided with means vfor lante-_ 11` " ‘ , 'i are ,ieee thread ed'm the .Shuttle im eäia Y'Íafie? the belebiii .hee 'heee `Í?eië1enie1ïe<i .iiif' te@ „ehiiiiieë ',Siieh threading elöekeeier?eiie iii rarieiieeheriee and ,siif'les’ ehi iii‘fêef?ie irïeieneee Where it ie .Cieeirf atlete eeñirót me ,er ieee aeeureielv, the 'iefrïeieií' ¿if ‘the’ iiliii'ie. three@ .reid ,ihreafiirie bleekeï'erierievided'iieiieilr ai the enel. thereof te ` Í ‘ Ü . - ‘Figl ‘l is an enlarged longitudinal section of the `inner -end vporti‘c'ín of the'thrëad-«ing bloei;A ,de m" Wel iheñlli e ,reeel iS .ted fregi the Debbie ' lock Wi ng pres d mem iiere eétireeriwhiehiïie ftîireeeirei'ele aeit'peeees te iii'eeheenei ,ef theihreeeiiie eher, .and .there lïy there .ie Drevieied a. .uniform tension entre fiil ing -yarn as the shuttle passes from side to _side in the `Qiielîe'iiofi .91’ the 10er?.- ~ . Iii iiie'tei'ieieii .de .eee Y hereteiere provided, Pìííîtie‘ilafir where.. _eee were. .used fer press ing the ieiieieri me bere toward eachother, it eemetimee eeenrreä'tìiai. ., hen _the reversal _of mevefrnent of the Shutile teck place,k the ñll ing ‘thread would overrun and throw a loop into the space behind onelor thel otherof the tension members and become fouled on `the tension Spring. ' ‘ ' Also, there was a tendency of the lint from the filling yarn îto pass into said space and pack be hind thetension~ members rendering the same ineffective and 'causing the tension members "to unduly bind the filling thread. The object therefore óf'tlìe present invention is to provide an’inniprovegwfgrm of tension device for automatically threading shuttles which is so taóhèd; Fig. ’5 is lan„enlarged . ..underneath plan _vievv of the inner-eed relriie? ef the threading bleek; ' 15 »6 >ie e 'Seetieiieiviey 'teken epei‘eiiimately on the’li'ne >6--6 of> Eig. still yfurtheren harge?d; llliesf '1 and 8 ere .respectively eide elevations. bersv en @Seele detached; 'Similaire and e Fia êäef the tension . ‘ 20 y'Trie‘sl 9V and 1.0 re ,underneath plan views thereof. ` _ Ii’ ‘eiieiilsi’ ef eeiiree, ee aerienne@ met the ele'eÍeril eed drawing hereinere illustrative iiíeieirï ...fifi that verieiie eharieee. ’and medifice tiens may he mafie inthe etrueturediselosed 25 vitrée-ui departing from the .Spirit ef the inven tion. ` f ` ÄReferring ie the` drawing, in the particular embediiiiefii ef the invention therein shown, the Shuttle bedr l0 ie preferably made of _wood and has the Vilis‘ual bobbin chamber II in which the behbin l2 iS held by thefueual means (not shown) whereby it may be readily .discharged therefrom and @new AVbobbin Jsubstitutez_i as the filling runs ' Out frein, time to time The shuttle body I il is also provided with the usual Sidedelivery Veye I _3 for the passage 'of the filling yarn I4. The sides of said eye may be pro tected by hardened steel pins >I5 vand I6, or the like, to take the Wear caused by the run ofthe ñllihg. The threading block I1 comprises;Vv pri marilv a' casting, preferably made of f'metal, eitìerveast iron ¿or brass, as desired. Said block I‘! has its outer side surfaces I8 and I9 prefer ably parallel With each other and its bottom sur~ face 20 substantially at right angles thereto. The body portion of the threading block I 1 is gael; behind the tension members from time to ñtted into a complementally shaped groove 2| in une. one end of the body portion I I) ofthe shuttle. The nature and characteristic features of the The body portion of the threading block I'I is invention will be more readily understood from 50 provided with a longitudinal channel 22 through the following description, takenv in connection which the filling thread I4 passes to the side de with the accompanying drawing forming part livery eye I3 during the Weaving Operation as hereof in which: said ñlling is laid into the cloth. Fig. 1 is a top or plan view of the threading y The threading block I 'I may also be provided end portion of ’a loom `shuttle having a tension l 55 with a rearwardly extending horn portion 24 and constructed and arranged that fouling of the ñll ing thread on the tension springs is eliminated, as is also the tendency of the lint to collect andr 2,403,724 3 4 an intermediate horn portion 25 extending into the longitudinal channel 22 of the threading block I1, said portion serving to assist in the ini nal thread channel through which the filling threading operation has been completed. At the inner end of the threading block I1, that is the end disposed toward the bobbin, larly disposed portions along the sides of the tension members, and an additional laterally extending flange along the thread entrance side thread passes from the bobbin to the outlet, ten sion members mounted in the threading block, springs mounted in the threading block pressing tial threading of the block and in the retention of the filling thread therein, after the initial CI the tension members toward each other, angu of each of the tension members, said fianges overlapping the sides of the thread channel at the entrance end thereof thereby to provide guards to prevent thread loops and lint from there is mounted a pair of tension members 26 and 21. The inner end of the threading block I1 is recessed vertically as at 28 for the mount ing of said tension members 2‘8 and 21 therein. The lower ends of the tension members are pro ' passing behind the tension members. threading type having a threading block mount extends a pin 3l) mounted in the lower portion ed in one end thereof and having a longitudinal of the inner ’end of the threading block I1. The upper end of each of the tension plates is bent over as at 3| to provide lug-like exten sions 32 which are positioned respectively in suitable apertures 33 drilled in the upper portion of the inner end of the threading block I1. In this manner the tension plates are guided at both the top and the bottom. For the purpose of imparting the requisite tension to the members 26 and’21 so that the same will grip the filling thread as the same passes therebetween, there are provided coil springs 34, which are Ipositioned in hollow screws . 2. In a loom shuttle of. the automatica vided With suitable apertures 29 through which thread channel through which the filling thread passes from the bobbin to the outlet, tension members mounted in the threading block, springs mounted in the threading block pressing the tension members toward each other, the thread ing block having a recess, at the entrance end of the thread channel, and the tension members having portions extending into the sides of said recess and overlapping the sides of the thread 25 channel thereby to provide guards to prevent thread loops and lint from passing behind the tension members. _ l 3. In a loom shuttle of the automatically 35 which are threaded in the side walls of the threading block in vertical alinement with the guide pin 30, at the bottom and the guiding aper tures 33 at the top. The hollow screws 35, in threading type having a threading block mount Which the springs 34 are mounted serve to pro vide means for regulating the degree of tension passes from the bobbin to the outlet, tension members mounted in the threading block at the '. entrance end of the thread channel, springs on the members 26 and 21. The main or body portions of the tension ed in one end thereof and having a longitudinal thread channel through which the filling thread mounted in the threading block and pressing the tension members toward each other, the thread ing Vblock having a recess at the entrance end of figuration in cross section, as for example, they the thread channel, and the tension members may be provided with flat faces 36 and have angularly disposed flanges 31 along the side mar 40 having portions extending into the sides of said recess and overlapping the sides of the thread gins thereof which are disposed Within the members 26 and 21 may be of any desired con thread channel, and the similar angularly dis , channel thereby to provide guards to prevent thread loops and lint fromY passing behind the posed flanges 38 along the thread entrance side tension members. _ thereof each have a further extending flange 39 4. In a loom shuttle of the automatically substantially at right angles to the main faces. 45 threading type having a threading block mount The additional vflanges 39 are disposed on the ed in one end thereof and having a longitudinal side toward the bobbin chamber and extend thread channel through which the filling thread into additional grooves 40 provided in the inner face of the threading block I1, overlapping the 50 passes‘from the bobbin >to the outlet, tension members mounted in the threading block at the edges of the inner recess, thereby effectively pre entrance end of the thread channel, springs venting the entrance of loops which may occur mounted in the threading block and pressing the upon reversals of motion of the shuttle, or when tension members toward each other, the thread for any reason the thread overruns, and also ing block having a recess at the entrance end effectively serving to prevent dust and lint from the filling thread from passing into the space 55 of the thread channel, and flanges along the sides of the tension members extending into the behind the tension plates, enabling the same to function effectively at all times without inter ference from such sources. I claim: l. In a loom shuttle of the automatically . 60 threading type having a threading block mount ed in one end thereof and having a longitudi side portions of said recess and overlapping the sides of the thread channel thereby to provide guards to prevent thread loops and lint from passing behind the tension members. JOHN J. KAUFMANN, JR.