Патент USA US2123701код для вставки
July 12, 1938. R. H. LAWSON E1' Al. KNITTING MACHINE AND METHOD OF KNITTING .Filed Deo. 23, 1932 4v sheets-sheet s ’se .3y @017 July 12, 1938. n. H. LAwsoN Er Al. 25123,701 KÑITTING MACHINE AND METHOD OF KNITT¥NG Filed Dec. 2s, 1932 > ’ 4 sheets-sheet 4 FI c'. 5 _ _ JNVJENWRS: .fPaßERTHZAWsaM ÄRTHVß/Y :2oz/715g By @m7 ¿Tr’y 2,123,701 Patented July 12, 193s UNITED STATES PATENT _ oFFlcE 2,123,701 KNITTING MACHINE AND lVmTHOD 0F. KNITTING Robert 1I.-y Lawson, Pawtucket, and- Arthur N. Cloutier, Lonsdale, R. I., assignors to Hemphill Company, Central Falls, R. I., a corporation of Massachusetts l Application December 23, 1932,'«Serial No. 648,686 n » `8 Claims. (c1. «se-4s) This invention relates to a stocking or half hose having a small heel as well as to a method of and machine for knitting the same. K In the drawings: . QI Fig. ~1 is a view infront elevation of a knitting machine equipped with mechanism for knitting the stocking or half hose; Fig. 2 is a view in side elevation showing means 10 for controlling they widening pick bracket; Fig. 3 is a plan view of themechanism shown in Fig. 1; Fig. 4 is a. view in side elevation showing the needle cylinder and cams for controlling the needles; 15 . . Fig. 5 is a 'plan view similar to Fig. 3 but show ing the parts in another. phase of the knitting cycle; . Fig. 6 is a plan view similar to Fig. 5but show ing the parts in still another phase of the knitting cycle; ` y vided which cam when the widening has reached the last Aiitteen short butt needles, is advanced to a position adjacent to the -needle cylinder as shown in Fig. 5, where the said cam I4 engages the short butts I5.of -group I3 and incidentally as the needle cylinder continues its rotation also ' engages long butts I6 of the inactive, instep needles, with the result that the short butt needls I3 and some of the long butt needles _are lowered to the knitting level -indicated by the 10~ numeral I1, Fig. 4. After the long butt needles are lowered by cam I4, a cam I8 engages their long butts I6 and again raises the instep needlesA to an inactive, instep level; the short butts I5, however, moving past the said cam I8 without being elevated. During this stroke of the needle cylinder the said group of short butt needles I3 is actuated by the cams of cam block 3 thus knitting wales of a course I9, finally arriving at thev end of the stroke indicated in Fig. 6, the 20 Fig. 7 is a diagrammatic view of the stocking or . other group I3' of ñfteen short butt needles hav ing meanwhile been restored to the knitting level by cam It.v Upon the` needle cylinder reversing Figs. 8 and 9 are views showing the two sides . lits movement and moving in the direction of the arrow, Fig. 6, the first mentioned group of 25 25 of the heel of a stocking or half hose, diagram fifteen short butt needles I3, knits wales of a matically representing the protective courses. The knitting machine indicated generally by course 20 being actuated by the cams comprising the numeral I is provided with the usual yarn the cam block 3, and as` the needle cylinder con lever b_ox 2 which has the usual yarn levers >(not tinues to rotate in the direction of the arrow,> shown) for interchangeably feeding yarns, of Fig. 6, the other group I3' of short butt needles 30 threads vto the needles of the knitting» machine. is likewise actuated by the cams comprising the The usual or anydesired construction of cam cam block 3, knittingother wales of course-IPI).v block 3 is provided for controlling the needles As the first mentioned group I3 of ñfteen short in. their knitting operationathe said cam block , butt needles approaches the cam block 3, the ' narrowing pick 4 thereat elevates the leading 35 35 carrying the Vusual narrowing picks 4, 4’. Cams such as 5 for controlling jacks-when jacks are short butt needlewhich needle consequently re used--are mounted upon a circular base 6. Other tains its previously drawn loop but fails to knit ' cams, including the regular instep cam 1, are ' during that stroke of the needle cylinder.` half hose knitted by the mechanism disclosed in Figs. 1-6 inclusive; and - . mounted upon the cam ring 8. . 40 Referringto Fig. 7, the stocking or half hose 9` is knitted in the usual manner excepting during the knitting of the heel IIJ. The heel I0 is pro gressively narrowed as at I I in the usual manner and-is then progressively widened as at l2 in the 45 usual manner until the last fifteen wales, more or ` Upon the `needle cylinder again reversingvits direction and moving in the direction of the 40 arrow, Fig. 5, and from the position shown in said figure', the group I3’ of ’iifteen short butt needles knits wales of a course 2.I being actuated by the camspf cam block 3 after which, and upon con tinued rotation of the needle cylinder, the first 45 less, on- each side ,of 'the stocking are reached, at ' group I3 of fifteen short butt needles, knits other wales of coursezl, the needle cylinder completing which time the remaining groups I3, I3’ of in active short butt needles are so controlled`~ as to its stroke when the needles arrive at the position be` simultaneously brought .into action or into shown in Fig. 6. During the last mentioned 50 knitting position, i. e., during one stroke or move- l ment ,of the needle cylinder. » `As .hereinbefore `stated. the last fifteen short -stroke of the needle cylinder, the leading short butt needle of. group` I3.’ is` picked up by the vnarrowing pick t’. - I ' ’ i butt needles` on each side ofthe machine are si Following the vlast mentioned strokev of the' multaneously, movedv to active, knitting position, needle cylinder,ïthe lneedle cylinder reverses its e - 55 yand to accomplish this purpose, a cam I4 is pro- A movement and again moves in the direction of 55 the arrow, Fig. 6, for the first course of circular butt needles on each side of the machine are to be knitting. As the needle group I3 moves in the simultaneously restored to the knitting level. direction of the arrow, Fig. 6, its leading needle ` As hereinbefore stated and as Vshown in Fig. '1, is picked up to the inactive level by the pick 4 'the heel pocket is progressively _narrowed in the after which the short butt needles knit the heel yarn, being actuated bythe cams comprising the cam blocks 3. About half of the short butt needles knit the heel yarn, the lighter, silk yarn usual manner and is also progressively widened in the usual manner until the last ñfteen, more or less, of the short butt needles on each side of the cylinder are reached. At the beginning of for the foot being substituted for the heel yarn 10 as the last half,imore or less, of. the short butt ' the widening of the heel, the usual butterfly cam needles I6 commence knitting. The foot is there iselevated thereby permitting the widening picks 41 to be raised by the usual springs to positions after knitted by continuous circular knitting and where reciprocations of they needle- cylinder will the leading short butt needles of the groups I3 cause the two. leading short butt needles at each and Il' which were picked to an idle level‘by ì side of the cylinder 'to be engaged by widening the picks’4 and 4', are restored to the active, knit picks' and lowered to a knitting level, the nar ting level by the instep cam 1. J rowing picks 4’ constantly remaining in action. The courses I9, 20 and 2l, knitted in the man The means for raising the butterfly cam includes ner hereinbefore described, are knitted with the a cam 48 on the drum 44 which, vby engaging a heel yarn and consequently provide protective toe 49¿ on a lever 50 pivoted to the machine frame 20 courses between the point 22 of the heel suture as at 5I, rocks the said lever and causes the link 20 and the relatively light, and preferably,- silk 52 to rock'another >lever 53 and thereby raise a v15 thread which is knitted into the'foot of the stock- . rod 54 to the upper end of which the aforesaid _ ing. In other> words1 the silk yarn is spaced from lbutterfly cam‘is connected. -'I'he cam 48 acts to -the point 22 of the heel suture, the relatively rock the lever 50 as aforesaid, _whenl'the widen 25 heavy, heel yarn knitted into the protective ing orknitting of the second half of the heel is courses I9, 20 and 2I strengthening the point of commenced; and the widening picks 41 remain the heel suture and thus- preventing the formation in active position and work in conjunction with of holes thereat. ` ""Í ‘1 . ' the narrowing picks 4, 4’ in the usual manner un The cam I4 is provi¢ied--.`-vlii`»hh an outwardly ex til the last fifteen short buttneedles, more or less, tending shank 28 which is slidablyl mounted in a on each side of the needle cylinder are reached bracket 24 supported by and upstanding from the . at which time, as hereinbefore stated, the cam cam ring or plate 8. The shank 23 extends through the bracket 24 and at such end is pro vided with an upstanding pin 25 which is 35 straddled by two arms of a bifurcated lever 26. which latter is pivoted intermediate its ends at 21 I4 acts to restore the said last fifteen needles at each side of the cylinder to the knitting level be ing, preferably, immediately attracted as indicated in Fig. 6. At the time the cam I4 is advanced in the manner aforesaid, the advancing of the drum upon a part of the bracket 24. The other arm of 44 which eiîects such cam movement also per the aforesaid leveris pivotally connected to a link A 'mits the toe 49 of.a lever 5I! to drop into the spacev 28 in turn pivoted at 28 to a depending ‘arm Snofa .indicated by the numeral, 55, Fig. '2, thereby 40 b_ell crank lever, pivoted intermediate its ends upon permitting the rod 54.-.-preferably assisted by a ‘ a pin 3i passing through the elbowvof the lever spring not shown---tov drop, which movement and into an angle bracket 32 which is fastened Acauses the aforesaid butterfly cam to retract the to and carried by cam bracket 33 which carries a " Wideningl picks 41 or move them to an inoperative jack cam 5 hereinbefore referred to. A coil position where they no longer engage the needle 45 spring 34 is attached at one end to lever arm 30 butts. . ' .‘ _intermediate the ends thereof and at the -other Although in- the foregoing description, refer end> to bracket 33, such spring tending to urge ence has been'made to the knitting of protective the upper end of the arm 30 to the left, Fig. 4, courses for spacing the silk, instep yarn from the and consequently to hold the cam I4 in a retracted . position away from the needle cylinder in which position it does not engage the needle butts. The action of the spring 34 also holds the- free end of the arm 35 of the bell crank lever in a relatively lowered position, where a hardened shoe 36, which Point 22 of lthe h_eel suture, the invention. in its broader aspect isdirected to the widened por tion I2 (which `may be omitted altogether) of the heel being smaller than the narrowed portion II thereof, the smaller, widened portion‘ I2 of t'ne heel -being more suitable for stockings knitted 55 is adjustably' fastened to the free end of the said with a slipper heel eifect. i. e., a low or narrow 55 arm 15 so as to be properly 'positioned with respect - double sole' portion; If it vbe not necessary to- to the free end oi' a lever 31, is maintained in provide strengthening courses ,adjacent to the point 22 of the heel suture. the 4widening of the ' heel may continue to the last vfifteen short'butt 1, which latter'is pivoted at 88 to a bracket I9_ 60 needles at each side of the stocking» at which time- oo' depending fromthe circular base 8. Interme diate its ends the lever 21 is pivotally connected the regular instep cam may be advanced there by restoring all pf the needles (including the at 40 to-an adjustable link‘4I which latter de pends therefrom and adjacent to its lower end vis long butt needles) tothe knitting level where upon circular knitting is resumed, the instep -provided with a cam or lug 42 which is periodi cally engaged by means of a cam 43 mounted on ' yarn being‘iirst knitted by the last half of the the periphery'of a drum 44 which latter is rigidly short butt needles to> pass the cam block _3. engagement with the free end o_f said lever 31,' Fig. . mounted on the main cam shaft .45 of the ma chine. In order to steady the link 4I and main 70 mn the cam u in the path of the cam u, said link 4I extends below thel lug 42 n_s'at 4,8 to en gage the side of the drum 44. ' » The lug, 42, preferably, is engaged KAby Ia cam.“ oncevonly. during the knitting of ‘each stocking 75 or half hose, namely, when. the last uiteen short- ' VIn the foregoing description two protective ` half-courses have been described as being knitted on one side of the heel and three such protective half -courses on the other side thereof. The num 70 ber of such half-courses may vary;V in other. words, the number of reciprocations of the needle . cylinderßubsequently to themoving to knitting position of the `groups I8 and I8' of 'short butt needles, may ' " - ' 76 amavo: ' ' ‘ ` 3 yarn upon less than all of the needles of _a knit- ' ting machine and knitting the foot of the stock knitting of a small heel; nevertheless, there is no ing with a relatively _light yarn upon all ,of the Although in' the foregoing description. the in vention has been described in connection with the ' intention thereby to limit the claims to the knit needles, and interposing reclprocatory courses unless specific terms lare used, there is no inten tion of limiting the invention to> the embodiment between the heel and foot. ,said courses being knitted with the ~_saine yarn used in the knitting of the heel, the method of knitting 'being' such that the relatively light yarn- is spaced from the describedl in the foregoing description and/or heel suture in the completed- stocking. ting oi a heel although the toe pocket is, prefer ably, knitted in the usual manner. Furthermore; ' "6. A circulary knitting machine having inde 10 pendent needles and picks for acting. upon the We claim: 1. A method'of knitting a pocket consisting in fsaid'needles and'for moving the needles to eñect shown inthe drawings. ’ ' ’ ' - the knittin'got fabric, _there being during‘knit progressively narrowing by oscillating a circular sexies vof needles while progressively withdraw ting relative movements between the needles and ing'needles from knitting, continuingl the knit ting by progressively adding withdrawn needles movements of the needles during the- knitting of the cams, means for causing 'continuous circular to` the active seriesv and then simultaneously the leg ofthe stocking and means for causing~restoring to knitting a group of the withdrawn - oscillatory movements of the needles during the needles and continuing to knit with the same._ knitting of the heel. of the stocking, the picks 20 thread, the said group comprising more needles acting- progressively upon the needles to eil'ect a 20 than are progressively added each widening vnarrowiri’g and then a widening of the heel, means for simultaneously restoring a group o! course, and immediately thereafter knitting cir needles to knitting position at the completion of cular courses with a relatively light. thread. 2. A method of knitting a pocket in a stocking „ widening of the heel,` means for thereafter eiïect 25" consisting in progressively narrowing by oscillat ing the knitting of oscillatory courses during the 25 knitting of which courses `the narrowing picks ing a circular series of needles while progres act upon leadingneedles, the heel courses and sively withdrawing needles from knitting, con tinuing the knitting by progressively adding the last mentioned courses being knitted with withdrawn needles to the active series and then the -same yarn, means for thereafter knitting.30 30 simultaneously restoring to knitting all oi' the re circular courses and with another yarn. _ 7. A circular knitting machine having inde- ' maining withdrawn needles comprising more needles than > are progressively added each widening course while oontinuingto oscillate the needles and to knit with the same thread, pendent needles and picks for acting upon- the _ said needles and for moving the needles to eil'ect the knitting of fabric, there being during knit -and then knitting circular courses with a rela- ' ting relative movements between the needles and tively light thread. 3. A method of knitting a stocking including 4 _ the knitting of the heel with a relatively heavy the cams, means -for causing continuous- relative circular movements _between the needles and cams during the'knitting of the leg of the stock yarn upon-less than all of the needles of a . ing and _means for causing relative oscillatory knitting machine and knitting the >foot of the movements-during the knitting of the ¿heel of 40 stocking with a relatively light yarn upon all of thestocking, the picks acting progressively upon the‘needles, and interposing courses between the _ the needles to eii’ect a narrowing and then a .l widening of the heel, means for _simultaneously the same yarn used in the knitting of the heen. restoring a group of needles to knitting position at the completion of widening of the heel, means 45 ' the method of knitting being such that the rela tively light yarn is spaced from the heel suture for thereafter effecting the knitting of oscillatory heelifand foot, said courses being _knitted- with in the completed stocking. . ' 4. A circular knitting machine having inde pendent needles and picks for acting _upon the said needles and for moving the needles to effect the knitting of fabric,_there being’duringknit ting relative movements between the needlesìand the cams, means for causing continuous relative courses, the heel courses and the last mentioned courses being knitted with the same yarn, means for thereafterknitting circular courses and with another yarn.` - ‘ _ 4 _ 50 _ 8. .A circular knitting machine having inde pendent needles and picks for acting upon the said needles and for moving the'needles to effect circular movements between theV needles and.- the knitting of fabric, there being 'during knitting the stocking, the picks acting progressively upon the leg of the stocking and means> forfcausing cams during the knitting of the leg of the stock- » relative movements between the needles and the 55 ing .and means for causing relative- oscillatory , cams, means for _causing continuous circular , movements during the >knitting of the heel tof movements of the needles _during the knitting of Y ' the needles to 'eilîe'ct _a narrowing and then a ~ oscillatory movements-of the needles.` during the .. ‘ 60 widening -of the heell means forsimultaneously 'restoring a group of needles to knitting4 position knitting of the- heel of the stocking, the picks .60 acting-progressively upon the needles to effect a at the completion of widening of the heel, means narrowing and then a widening of the heel, means vfor thereafter „effecting the knitting- of oscillatory -for' simultaneously restoring agroup of needles ‘ courses during the knitting-‘of which courses the to knitting' position-‘at the completion of widen- "5 < 65 narrowing picksa'ct upon'leading needles, the ing of the heel, means for‘thereafter effecting the 6 knitting of.oscillatory courses, the heel courses heel courses and the last mentioned courses be ingknitted with the same yarn, means for there and the» last- mentioned courses being knitted afterknitting circular 'courses and with another ' with the same yarn, means for thereafter knitting . yarn. .- . » . f _ _. 5. A method ofknitting a stocking including the'kn'itting of the heel with a relatively heavy circular courses and with another yarn. ` ROBERT H. LAWSON. ARTHUR~N. CLOUTIER.