Патент USA US2105444код для вставки
Jzin.1l,1938. ' T. SCHMIDT ~ 2,105,444" ACTUA'I’ING MEANS FOR KNITTING MECHANISM Filed Nov. 4, 1956 P!‘ 4 Sheets-Sheet 1 w 2 lb 4 , Pl 4- F ~ _. M. g 5 j if 76 -. Em_ a 5 4 45% g ' ‘ 4s ‘ - - —-—-7 .\ § 1 . , 'INVEN'TOR.’ v124:2féehlnialié’v I BY L ' 5% 'ATTORNEY. - Jan. 11,1938. T. SCHMIDT 2,105,444 ACTUA'I'ING MEANS FOR KNITTING MECHANISM ) Fiied Nov. 4, 1936 4 Sheets-Sheet 2 IN VEN TORC ,Sakmid?" BY , A T TORNEY. Jan. 11, 1938. ' P. SCHMIDT 2,105,444 'ACTUATING MEANS FOR KNITTING MEcHANisM Filed NOV. 4, 1936 4 Sheets-Sheet 3 l:- LIE--5 1,05421 _ ' ‘ INVENTOR.’ ATT‘OR Y. ' ’ Jan. 11, 1938. P. SCHMIDT‘ 2,105,444 ACTUATING-MEANS FOR KNITTING MECHANISM Filed Nov. 4, 1936 70 v64’? ~ 4 Sheets-Sheet 4 _'7_ _ 70 66, JZvuZ/S BY INVENTOR: ' ATTORNEY I 2,105,444 ‘Patented Jan. 11; 1938’ UNITED STATES . _ PATENT OFFICE 2,105,444‘ screams MEANS roa xm'r'rmo maca ‘ I ANISM Paul Schmidt, Wyomisslng, Pa, assignor to Tex tile Machine Works, Wyomissing, 2a., a cor poration of Pennsylvania ‘ Application November 4, 1938, Serial No. 109,086 '8 Claims. (01. 66-129) . _My invention relates to novel mechanism for without limiting the invention in its useful appli cations to the particular constructions which for operating elements of knitting machines at dif ferent speeds, and particularly to mechanisms for the purpose of explanation are made the sub operating friction boxes by friction rods at di?er- ' ject of illustration. In the drawings; CI ent speeds in a straight machine 'for knitting a , ' _v . . 5 Figure 1 is a 'view, iii rear' elevation, having distance breaks, of portions of a full-fashioned full-fashioned stocking blank or the like. ,In amachine for knitting full-fashioned stock knitting machine embodying the invention, ele ing blanks, certain yarn carriers operate to lay ments being broken away and omitted; Fig. '2 is an enlarged view, taken along the 10 ,. ground yarn entirely across the blanks, and others 10 ‘to lay additional yarns for short distances over, or with, the ground-yarns, as in the heel areas line 2-2 of Fig. 1, parts being omitted; Fig. 3 is an enlarged detail plan view oflfric to reinforce the blanks at these locations‘; these carriers all being operated by one friction rod. ' tion box and carrier bar portions of the machine, substantially as viewed in the direction of, and between, the arrows along a line 3-8 of Fig. 1; 15 Thus, in-knitting a blank to have double-yarn heel areas, at least three yarn carriers are re ‘ Fig, 4 is a view taken along the line 4-4 of quired, one to lay the full courses and two to lay . the heel reinforcing yarns. Fig. 3; ' - reinforcements. ' Fig. 5 is an enlarged view, taken substantially along the line 5-5 of Fig. 1; Fig. 6 is a view, partially in elevation and par- 20 tially in section, of a portion of the structure of In a ringless stocking having this double-yarn heel reinforcement, five carriers are employed, with three for laying single yarns in sequence for the full courses and two for laying the heel Fig. 5, taken at right angles thereto; and ‘ _ Fig. '1 is a diagram of portions of a full-fash—‘ ' In knitting a‘blank to have triple yarn heel ioned stocking leg blank, and of the adjacently associated yarn-laying elements of the machine. 25 . ' areas, at least ?ve yarn carriers are required, and, in a ringless stocking this-number is‘ increased to seven; all operated by the one friction rod., In modern practice the machine is operated at very high speeds, so that the heat of friction be In practicing the invention, mechanism is pro vided foroperating a knitting mechanism and a vfull-coarse yarn carrier'in usual relation, and tween‘the several friction boxes and the single 30 friction rod is substantially increased and has simultaneously operating reinforcing carriers at a reduced speed, such as half the speed of the 30 become a serious problem, with respect to which ‘ full-course carrier or carriers. This action is» obtained by the use of a half-speed friction rod, a number of remedies have been suggested. ‘ which is auxiliary, or in addition, to a usual Among the objects of my invention‘ are to re duce the above-mentioned frictional heat and the friction rod of a full-fashioned knitting machine. Further, means are provided whereby each of a 35 damaging resuits'thereof.‘ ' _ Another object is to provide a mechanism for operating different elements of a knitting ma chine at di?erent‘speeds by a mechanism of ma _ - terlally enhanced simplicity'and reduction in the 40 number of its parts. - . A further'object is toprovide a device of .the above indicated 'characte that is durable in con struction, economical to “ anufacture and'eifec tive in its operation. a. - _ with these and other objects which may. be incident to a utilization of the improvement, the invention comprises the parts and combinations thereof, which may be variedin shape, texture, relation and other features, and the operation, which may be varied, in- accordance with the Q spirit and scope of the invention as hereinafter set forth and claimed. , Although means are shown in the accompa - ing drawings for carrying the invention into prac 55 tical effect, these are merely by way of example, plurality of yarn carriers may be connected either to the usual friction rod or to the half speed rod as desired. > . Preferably, a simpli?ed speed-reducing mecha nism is provided of the type disclosed and claimed 40 in the patent to Waechtler and Suess, No. 2,059,667, granted November 3, 1936 and having ‘ a reduced number of parts. Such mechanism has a single coulier motion mechanism including only one long or main rocker arm by which the main 45 ‘or full-speed friction rod is- operated, and to which‘ the above-mentioned reduced-speed fric tion rod is directly connected independently of the connection between the main friction rod and 50, the rocker arm. The full and reduced speed fric tion rods are connected positively to the rocker arm. The ratio of theydi?erent speeds is adjust able. These features severally and in combina tion constitute means of materially advantageous 55 2,105,444 (‘character in the knitting art, but form no 'part ciprocably mounted in a member 51 with respect of the present invention. The figures exemplify the elements of the in vention, and also only such elements of a “Read ing” full fashioned knitting machine as neces to which it is prevented from turning by a pin and slot device 56. A spring 59 operates between the plunger 54 and a bridge 62, whichissupported by a pair of bolts 63 on the member 51, to bias The other members of the machine and the opera the plunger 54'downwardly. - sary to an understanding of the invention. ings, the frame work or base support of a stand ard full fashioned knitting machine therein in blank S having reinforced heel areas L and R. tion thereof are well known, as set forth in the “Reading” Full Fashioned Knitting Machine '10 Catalogue, copyright 1935, and published by the Textile Machine Works, Reading, Pennsylvania. Referring particularly to Fig. 1 of the draw 15 dicated, comprises center frames Ill and end frames H rigidly positioned in spaced relation by a front rail l2, aback rail l3 and a center bed l4. >20 - As indicated in Fig. 5, a positive connection is provided, as'by a set screw 6|, between the re duced speed friction rod 4'! and the connector T to positively connect the rod 41 to the coulier motion mechanism. Fig. 7 illustrates one application of the inven tion, in producing a full fashioned stocking leg . ‘ A coulier motion vmechanism C of well-known type, comprises a draw bar or pitman IS, on - which are mounted a pair of rollers I6 (only one of which is shown) for cooperation with a coulier cam H, to oscillate a small rocker arm (not shown) and a large rocker arm l9. This mech Three friction boxes 64, 65 and 66 are shown, these boxes being identical except for a member ‘I6 on the box 64 to be thrown into and out of the path of travel of the collars 46 on the shock re ducer rod 45. _ As better seen in Figs. 3 and 4, the box 65 is of 20 double box character surrounding the closely ad jacent parallel main and auxiliary friction rods .32 and 41, respectively, each half of the box be ing like. a complete single box including the usual anism operates to translate the rotary movement friction linings 1|, shoes ‘I2 and leaf springs 13, but the box halves being distinguished by a cam of the cam shaft ‘into the reciprocable move ments of the yarn feeding and loop forming handle 15 on the full-speed half of the box, and mechanisms. V30 , ' - , The rollers l6, adjustably secured to the draw bar l5, cooperate \ivith the coulier cam l'l‘ to re ciprocate the draw bar, which is pivotally con nected at its ends to the small and large rocker arms, respectively: The rocker arms are piv otally mounted on brackets, which are mounted 35 on the back rail I3, one of these brackets 24 be ing shown in Fig. 1, for supporting the large rocker arm l9. Reciprocation of the draw bar l5, oscillates the a similar handle 16 on the reduced speed half of the box. A usual slide bar 18 on the box 65 hav ing a handle 19 is adapted for selective coopera— 30 tion with a dog 86 on any of the usual yarn-car rier bars I to .8, inclusive, on each of which a yarn-carrier or finger‘ is adapted to lay yarn to a knitting head assembly K_ (Fig. 2) including the usual needle bank 8|, sinkers, dividers and other elements. The carrier bars are supported by sta large rocker arm l9 about its lower end pivot, and tionary brackets 82 on the center. bed l4, and are provided with usual end stops S, Fig. 1. The boxes 64, 65 and 66 are connected to carrier 40 reciprocates a cross head 21 through a. link 26, the ends of which are pivoted to the large rocker arm yarn-carrier ?ngers 84, 85 and 66, respectively. l9 and to the cross head 21, respectively. The ' cross head 21, which is ?xed to a full-speed fric bars 4, 5 and 6, Fig. 7, on which are mounted 40 In this instance, .the boxes 65 and 66 are con- - nected to the half-speed friction rod 41, and the " tion rod 32, is carried by a slur cam connecting - box 64 is connected to the full-speed friction 45 rod bracket 29 that is slidably mounted on a rod 32. stationary guide 36. In operation, upon rotation of the coulier cam A bracket or pivot support B is slidably re I ‘Lthe pitman l5 oscillates the rocker arm I 9 ciprocably mounted on a back narrowing shaft about its lower-end pivot, whereby the link 28 34 and comprises upper and lower portions36 ' at the upper end of the rocker arm, the slur cam 50 and 31 secured together, as by bolts or screws. connecting rod bracket 29, the cross-head 2‘I , The lower portion 31 has a depending arm 38 and the friction rod 32 are recip'rocated at the having a vertical slot 39' therein in which a pivot , speed of substantially the fastest moving part of v support 42 for one end of a link 43 is mounted the rocker arm through distances in accordance for ?xed adjusted position in any'part of the ' with oscillation of the rocker arm between lines 3 55 slot. The other end of the link 43 is similarly a and b. ' When both the high speed friction rod 32 and . - The upper portion 36 of the bracket B rigidly the low speed friction rod 41, are at the right supports a connector device T for yieldably con hand ends of their strokes, corresponding to the necting to the coulier motion mechanism a shock position b of the rocker arm indicated in Fig. 1, 60 reducer rod 45 carrying collars 46, Fig. 7, and with the ground yarn carrier rod 4 connected to GO positively connecting a reduced-speed friction the friction box 64 operated by the high speed rod 41 to the coulier motion mechanism. A sta friction rod 32, and splicing yarn carrier rods 5 tionary rod 48, on which the connector T slides, - and 6 connected to friction boxes 65 and 66 op is provided to support and prevent turning of erated by the low speed friction rod 41, these car 65 the connector about the main support on'the riers will start laying their yarns at the same (if shaft 34. Also,-a slide guide 5|, Fig. 2, of fork . time, but, with the friction rod 32 traveling twice shape secured to the arm 38 and embracing a as fast as the-rod 41, there will be a constantly back catch-bar shaft 52 is vprovided to assist the changing relative speed between the carriers. rod 48 to prevent turning of the connector T and ' Near the ends of the strokes, the member ‘HI mounted in a slot 44 in the rocker arm l9. V70 the bracket B relative to the shaft 34. As better-seen in Figs. 5 and 6, the connector device T comprises a vertical plunger or detent rod 54 having a. pointed or tapered lower end 55‘ for cooperation with‘ a notch 56 in the shock re will engage one of the collars 46 on the half-speed ‘ shock reducer rod 45 whereby the box 64 will slip relative to the high-speed friction rod 32 but will be carried thereby at the reduced speed until the carrier bars engage the end stops S. Upon'im 75 ducer rod 46. The plunger 64 is vertically re-' pact of m'ember "with a collar 46, the plunger 7 3 2,105,444 54 is momentarily lifted partially out of the notch 56 against the action of the spring 59 which thereby absorbs the shock of this impact, and yarn carrier means including yarn carrier bars parallel to the needl'e'bank, means for actuating the yarn-carrier bars including a plurality of subsequently presses the plunger back into nor mal position in the notch. At the ends of the strokes of rods 32 and 41, the loops will be formed to the carrier rods, a friction box including friction rods longitudinally recipr'ocable parallel in a usual manner, whereupon the return strokes of the ground yarn carrier 4 and the splicing yarn carriers 5 and 6 will take place. 10 Although as many yarn carriers may be em ployed as in machines heretofore constructed, by the arrangement in whichthe splicing carriers are operated at only half the speed of the main carrier or carriers, the heat of friction is' greatly 15 reduced and the ability of the machine to run at high speed in more effective manner is materially, enhanced. This feature marks a desirable ad vance in the knitting machine art, and' ensures the effective production of knitted fabric in ac 20 cordance with a principle which to the best of my knowledge‘ has “not heretofore been known. The improvement speci?cally shown and de scribed, vby which the results are obtained, may be modified in various ways, without departing 25 from the invention as set forth and claimed. I claim: ' ) 1. In a straight knitting machine, loop-form ing mechanism including a needle bank, yarn carrier means including yarn-carrier bars par 30 allel to the needle bank, means for actuating the yarn carrier bars including a plurality of friction rods reciprocable at different speeds, and a single friction box‘ for selectively connecting a carrier bar to one or another of said friction rods. 2. A straight knitting machine comprising loop forming mechanism including a needle bank, means for selectively connecting it to one or an other of said friction rods, and means for con-' necting the frictionv box to one of the carrier bars. ' ' ,. 5. A straight knitting machine comprising loop 10 forming mechanism including .a needle bank, yarn carrier means including yarn carrier bars parallel to the needle bank, means for actuating the yarn "carrier bars including a plurality of friction rods longitudinally reciprocable at differ ent speeds parallel to the carrier rods, a friction box including means for selectively connecting it to one or another of said friction rods, and means for connecting the friction box to one of the car— 20 rier bars. Y, . 6. A straight knitting machine comprising loop ‘forming mechanism includingv a needle bank, yarn carrier meansincluding yarn carrier bars parallel to the needle bank, means for actuating the yarn-carrier bars including friction rods dis posed in closely adjacent side-by-side relation land longitudinally reciprocable at different speeds yarn carrier means including yarn carrier ele ments parallel to the needle bank, means for actuating the yarn carrier elements including a 40 plurality of members reciprocable at different speeds parallel to ‘the carrier elements, means for adjusting the ratio of said speeds, and a parallel to the carrier bars, a friction box struc- ' ture surrounding said friction rods, sets of fric 30 tion shoes and clamps carried by the box for selectively connecting the box to one or another friction rod, and means for connecting the box to a carrier bar. 7. In a straight knittingmachine, loop-form ing mechanism, a plurality of yarn carrier bars, and ‘means for operating the bars, said means includinga high-speed friction rod, a friction box for connecting the high-speed friction rod to a ‘yarn carrier bar, a low speedfriction rod, and a friction box for connecting thejlow-speed fric tion rod to another carrier bar, one of said fric single means for selectively connecting a carrier tion boxes being selectively connectible to the other of said friction rods. element totone or another of said members. 3. A straight knitting machine comprising loop 45 forming mechanism including a needle bank, yarn carrier means including yarn carrier ele— ments parallel to the needle bank, means for tion box units mounted on said rods for driving said bars, each of said units having means for actuating the yarn carrier elements including a '50 plurality of members reciprocable at..di?erent speeds ‘parallel to the carrier elements, and a single means for selectively connecting a carrier - element to one or another of 'said members. 4. A straight knitting machine comprising loop forming mechanism including a needle bank, 8. In a flat knitting machine having a plurality of knitting sections, in combination, a plurality of friction rods operating at different speeds, a pin rality of yarn carrier bars, and a plurality of fric selectively establishing driving connection be tween either of said friction rods and any of said yarn carrier bars so that the latter may be oper ated at different speeds relative to each other in one or more sections of the machine. ' PAUL SCHMIDT. 4 CERTIFICATE OF CORRECTION. Patent-No, 2,1054%. ' " _ ' PAUL January 11, 1958. SCHMIDT. - It is hereby certified'_ that error appears in the above 'numberfed patent requiring correction es follows:v In the heading .to ?the drawings, Sheets 1 and 2, name of inventor, for "TQSCHMIDWread P. ‘SCHMIDT; and that. the said Letters Patent should be read'with this correction therein 'thet the same may conform to the record of the case in the Patent Office. Signed and seaied this 29th day of March, A. In. 1958. (Seal) ' v , -v Henry- Van Arsdale, Acting ‘Commissioner of Patents.