Патент USA US2407162код для вставки
Patented Sept. 3, 1946 ' 2,407,162 7 UNITED STATES PATENT oFFrCE f “ LooM SHUTTLE ‘John J.-. KaufmannpJn, Greenville, ‘S. ‘0., ass‘ignor to ISteel Heddle Manufacturing ‘Company, I Philadelphia,‘ Pa., a corporation of Pennsylvania . I Y Application J anuary‘13, ‘1944, Serial No. 518,038‘ 54 Claims. (Cl. 139——-223) 1 , . 2 My invention relates to shuttles for looms, and it relates more particularly .‘to the provision of improved means for automatically threading the Weft in shuttles of the type in which the C?lling bobbin is ‘changed ‘from ‘time ‘to ‘time to replenish the'supply of weft. t _ . subjectedin use. ‘ The nature ‘and characteristic features oflthe invention will 'be more readily understood from the following description, taken ,in connection with the accompanying drawing forming ‘part ' The threading blocks originally used in auto hereof, in which: matically ‘threading ‘shuttles for ilooms were usu ' , , Figure 1 is a top or plan view .of the threading ally made of brass or other similar ductile mate .rial. . shocksian‘d ‘jars to which the shuttle parts are end portion of a loom shuttle embodying the main features of the present invention; By reason of the ease with which such metal could be worked, not ‘only were the ‘ordi nary machining operations facilitated, but also certain portions could be readily :bent or formed, when “desired, to the required shapes for effect Fig. 2 is a side elevation thereof; ing the threading operations. Fig. 3 is a longitudinal central section thereof, looking in a direction opposite‘ to that of Fig. 12.; Fig. 4 is an outer end elevation of the ‘thread It has for some time been recognized that threading blocks made of roast ‘iron have much threading block; ing ‘block detached, and slightlyenlarged; .Fig. 5 .is ‘a similar view in sidelelevationlof the better wearing characteristics than those made Fig. 6 is a similar vview comprising an inner end of brass or other relatively soft ductile materials, tending to longer life, and in fact enabling the 20 threading blocks to ‘be reused ‘in new shuttle ‘bodies after the wooden parts of the original shuttles have become worn or damaged. The principal Yobj ect vof the present invention is to provide improved threading means for ‘auto matically threading shuttles, comprising a threading block, the main or body portion of which maybe readily cast, preferably of cast iron, elevation of the threading block; and Fig. '7 is a section taken on the .line 1--1-,of Fig. 5, still vfurther enlarged. , l - Referring to the drawing, in the particular em bodiment of the invention therein shown, the shuttle body this preferably made of wood, ‘and has the usual bobbin chamber H in which the bobbin I2 is held by the usual means ‘(not shown), whereby it may be readily discharged therefrom, and a new bobbinsubstituted therefor, as the?ll and in which such ?nishing as required may be ing runs out from time to'time. V done by machine operations of a simple aniline 30 The shuttle body I0 1is also provided with the expensive character. ‘ usual side delivery eye I 3 for the passage of ‘the A further object of the invention is to provide ?lling yarn. The sides of said ‘eye ‘may be pro a threading block .for gloom shuttles in which ‘the tected by hardened steel pins M and 15, or the body portion is ‘made of ‘an integral casting, like, ‘to ‘take the wear caused by ‘the run of the which may preferably be cast iron or the like, ' ‘?lling. The pin FM is mounted ‘in the wooden which is so shaped as to "operate .in an efficient ‘portion of the shuttle outwardly of the side de and satisfactory manner. livery eye 13, while the ‘pin I5 is carried ‘Eb-y the .A further object of the invention 'is .to provide threading block l6, to be hereinafter described. in a ‘shuttle-of the character aforesaid,‘ a thread The threading block 16, comprising ‘the prin ing block which is vso shaped ‘that the ?lling 40 cipal novel element of ‘the present invention, thread will be initially guided therethrough, to ‘the proper operating location, in a smooth and easy ‘manner, whereby breaking of the ?lling 'on ‘the transfer of the bobbins ‘will be largely ‘elimi nated. A ‘further ‘object of the invention is to provide a‘threading block with an improved form of ten sion device of ‘the spring pressed plate type.‘ A further object of the invention is to provide, I in a loom-shuttle of the character aforesaid, .im proved means for adjusting the pressure of the plates which are used for imparting the ‘tension ‘comprises primarily a single ‘integral casting, preferably of a hard non-ductile material such as cast-iron, and has its ‘body portion provided with outer ‘side surfaces I1 and 18, preferably parallel with ‘each other, and its bottom surface I Bsubs'tantially a’t'right ‘angles thereto. ‘The ‘body portion of the ‘threading block I6 is ‘?tted into a complementally shaped groove 2|] in the ‘outer end portion ‘of ‘the ‘body In ‘of ‘the shuttle, and by 50 reason of the shape of said ‘body-portion‘ of the “threading block l6, said groove may ‘be easily ‘and conveniently cut in the body portion vl0 of the ‘shuttle. ‘The body portion of the threading to the ?lling thread, and for maintaining ‘such block I6 is provided with a longitudinal chan radjustmentwhen oncelmade, notwithstanding ‘the a 65 nel. 2-] through ‘which the ?lling thread passes 2,407,162 3 to the side delivery eye l3 during the weaving operation as said ?lling is laid into the cloth. The threading block I6 is provided with a rear wardly and outwardly extending integral horn position 22, which initially, in the rough cast~ ing, is also integrally connected to a forwardly and outwardly extending lug 23 which constitutes 4 vide a transverse channel through which the thread passes when the shuttle has been fully threaded. Adjacent the cutaway portion where the thread passes from the longitudinal channel 2| in the threading block iii to the aforesaid transverse channel there is mounted a hardened steel pin 32, extending upwardly at a slight angle to the vertical, and around which the ?lling thread of the threading block Hi. In the making of the threading block IS, the 10 turns to pass to the delivery eye. At the outer vend of the transverse channel the pin I5 is located. connection between these two parts, to wit, the which pin serves to minimize wear at the point horn 22 and lug 23, is severed by a saw out, which where the ?lling thread passes out through the thereby provides an entrance slot 24, having op side delivery eye. posed parallel faces for the ?lling thread, to pass The threading block H5 is preferably provided therethrough during the threading operation. 15 at its inner end with spring pressed tension This slot is cut with the saw disposed at an angle plates 35, the lower ends of which are perforated to the longitudinal aXis of the threading block ‘for the passing therethrough of a guide pin 36 Hi, and also inclined to the vertical, so that said which is mounted in the lower inner end of the slot 24 extends at a pronounced inclination threading block IS. The upper ends of the ten 20 downwardly and forwardly. sion plates or pads 35 are bent over in the usual The projecting horn portion 22 is initially so manner as at 31, and are guided in transverse shaped, as to provide at the extreme rear there apertures 38 provided in the upper part of the of, a downwardly depending lip portion 25 which threading block. assists in preventing the thread from becoming disengaged from the threading block through 25 Hollow screws 39 are threaded in the side walls I a continuation of one of the side wall portions ‘swirling or looping. Likewise, the forwardly and outwardly extend of the threading block l6, and in each of these hollow screws 39 there is mounted one end of a coil spring 40, the other end of which bears against one of the tension plates 35 at a point ing lug 23 is also provided with a downwardly projecting lip portion 26 for a similar purpose. By the foregoing arrangement there is pro 30 intermediate the ends thereof. The foregoing arrangement of tension plates vided a novel construction of the outer end of the is well known in the art, but considerable di?‘l threading block, in which the thread entrance culty has been encountered in the use of such an slot 24 is provided with opposed parallel faces arrangement by reason of the adjusting screws, of appreciable area, and the planes of said faces by means of which the springs are held and po are inclined not only to the longitudinal axis of 35 sitioned, being jarred to an extent sufficient to the shuttle, but also inclined to the vertical. This change the adjustment thereof. arrangement not only by itself, but particularly To avoid such a change of adjustment, there in conjunction with the downwardly extending is provided in each side wall of the threading lip 25 on the end of the horn portion 22, as well block, an aperture 4| adjacent the aperture in as the lip 26 carried by the forwardly and out which the spring screw 39 is threaded and over wardly extending lug 23, will serve effectively to lapping the threaded portions thereof. In each prevent unthreading of the shuttle at this point of these apertures 4| there is mounted a plug 42 during the operation of the loom. of raw hide, vulcanized ?bre, or other similar Intermediate the ends of the threading block tough compact ?brous material, which plug 42 there is an auxiliary horn member 2'! which ex~ is inserted after the threads have been cut in tends rearwardly and outwardly into the thread ~ the apertures in which the spring screws 39 are channel 2| being integrally formed on one side mounted, whereby the threads of the screws 39 wall, and initially integrally connected to the will imbed themselves in the ?brous plugs 42, other side Wall, but ‘being severed therefrom by which will serve as effective brakes to prevent loss a saw out which thereby provides a thread en -50 of adjustment of said screws. trance slot 28 at this point. Iclaim: It should here be noted that the thread en~ 1. An automatically threading loom shuttle trance slot 24 extends at a pronounced inclination having a threading block the body portion of downwardly and forwardly, whereas the thread .which is made of a hard metal casting and pro entrance slot 28 extends substantially parallel to thelongitudinal axis of the shuttle and vertically 55 vided with a thread channel extending longitudi~ downward. It will therefore be seen that the thread entrance slots 24 and 28 are not only ar nally therethrough, said threading block having an integral thread retaining horn portion at the outer end thereof extending from one of the side ranged with the planes of their faces at different walls of the body portion toward an extension angles but the same are also de?nitely out of alinement with each other and unthreading of 60 of the other side wall thereof, said horn portion being separated therefrom at its free end by a the shuttle through overcasts or looping will be thread entrance slot extending downwardly and greatly minimized. forwardly and having opposed parallel faces dis In the bottom of the thread channel 2| in posed in planes inclined to the longitudinal axis the body portion of the threading block |6 there are provided transversely extending hardened 65 and to the vertical, said horn portion also having a downwardly extending lip at its free end, and steel pins 29 and 30 which serve to take the wear the oppositely disposed portion of the side wall from the run of the ?lling thread in the bottom also having a downwardly extending lip. of the channel. _ 2. An automatically threading 100m shuttle Disposed adjacent and beneath the rearwardly and outwardly disposed horn portion 22 is a 70 having. a threading block the body portion of which is made of a hard metal casting and pro downwardly inclined lug 3| which serves to guide vided with a thread channel extending longi the thread downwardly toward the delivery eye i3 tudinally therethrough, said threading block hav after the same has passed through the thread illg an integral thread retaining horn portion at entrance slot 24. The block is cut away at the lower end of the aforesaid guide portion to pro 75 the outer end thereof extending from one of the 2,407, 162 5 side walls of the body portion toward an exten sion of the other side wall thereof, said horn portion being separated therefrom at its free end by a thread entrance slot extending downward and forwardly of the horn portion serving to guide the thread into the transverse channel after the same has passed through the thread entrance slot and upon the return pick of the shuttle. ly and forwardly and having opposed parallel faces disposed in planes inclined to the longi tudinal axis and to the vertical, said horn portion also having a downwardly extending lip at its free end, and the oppositely disposed portion of 4. An automatically threading loom shuttle having a threading block the body portion of which is made of a hard metal casting and pro vided with a thread channel extending longi tudinally therethrough, said threading block hav the side wall also having a downwardly extend~ 10 ing an integral thread retaining horn portion at ing lip, said threading block also having another the outer end thereof extending from one of the integral horn portion disposed intermediate the side walls of the body portion toward an exten ends of said threading block and extending from sion of the other side wall thereof, said horn one side wall toward the other, and being sepa portion being separated therefrom at its free end rated at its free end from said other wall by a 15 by a thread entrance slot extending downwardly thread entrance slot extending vertically down and forwardly and having opposed parallel faces ward and having opposed parallel faces. disposed in planes inclined to the longitudinal 3. An automatically threading loom shuttle axis and to the vertical, said horn portion also having a threading block the body portion of having a downwardly extending hp at its free which is made of a hard metal casting and pro 20 end, and the oppositely disposed portion of the vided with a thread channel extending longitudir side wall also having a downwardly extending lip, nally therethrough, said threading block having said threading block also having another integral an integral thread retaining horn portion at the horn portion disposed intermediate the ends of outer end thereof extending from one of the side said threading block and extending from one side walls of the body portion toward an extension of 25 wall toward the other, and being separated at its the other side wall thereof, said horn portion free end from said other wall by a thread en being separated therefrom at its free end by a._ trance slot extending vertically downward and having opposed parallel faces, said threading thread entrance slot extending downwardly andf‘" forwardly and having opposed parallel faces dis-l ‘ posed in planes inclined to the longitudinal axis so and to the vertical, said horn portion also hav-V _ ing a downwardly extending lip at its free end, and the oppositely disposed portion of the side‘ wall also having a downwardly extending lip, said threading block also having at its outer end a transverse channel extending from the longitudi-f as nal channel to the side delivery eye of the shuttlef ' and a downwardly inclined lug portion below’ ' block also having at its outer end a transverse channel extending from the longitudinal channel to the side delivery eye of the shuttle, and a downwardly inclined lug portion below and for wardly of the horn portion serving to guide the thread into the transverse channel after the samehas passed through the thread entrance slot and upon the return pick of the shuttle. JOHN J. KAUFMANN, JR.