US1034665A - Circular-knitting machine. - Google Patents

Description

E. H, WALKER.-

CIRCULAR KNITTING MACHINE.

rum-r1011 3mm) APR.13, 1911.

Patented Aug. 6, 1912.

4 SEEETSSHEET 1.

E. H. WALKER.

CIRGULAR KNITTING MACHINE.

4 SHE-ETS-SHEET 24 Patented Aug. 6, 1912.

APPLICATION YILED APR. 13, 1911.

I i E. H. WALKER. CIRCULAR KNITTING MACHINE. APPLIUATION FILED APB.13, 1911,

Patented 1912 4 SHEETB-SHBET 3,

E. H. WALKER CIRGULAR KNITTING MACHINE.

APPLICATION FILE/D /APR.'13, 191 1,

Patented Aug. 6, 1912 4 SHEETS-SHBET 4,

Invert/i019 3 m mvfswi Li. IM M improvement. on the construction UNITED STATES PATENT onnion.

"EVERETT Hi WALKER, OF ILQWELL, MASSACHUSETTS, .ASSIGNOR T0 LAW'RENOE MAN- UFACTURING COMPANY, OF LOWELL, MIASSAGHUSETTS, A CORPORATION OF MAS- SACHUSETTS.

i CIRCULAR-KNITTING MACHINE.

Specification of Letters Patent.

Patented Au 6,1912.

Application filed April 13, 1911. Seriai He. 620,739.

To all whom "it-may con/hem:

Be it known that, I, ,ElERE'lT H. VALKER;

'1. he invention relates toeireular knitting nme'hinos for knitting split foot stocking-H.

The object of the invention is to provide :1 novel and improved construction and arrangement of the devioe; for opernting'nntl controlling the needles and for controlling the feed oi the yarn to the neetllee, whereby the feed of the hlnek yarn to the needle-e may 'lLJC COIItlIUJUl (hiring at part or oli of thenil'lfliewing in. knitting the heel. eothet 2i drop heel or a split heel etoelnng knit.

The ii'ivention is intentletl primer. 11$ on of meelnne shown and described in the patent to I laquette i o. 98:3,92T, (l:1te l h'hnrch 7, 1911.

nlthougli it will he illicler'etooil that the invention is not limited in its application to this machine. 21ml that it may he Ql'llbfidlCtl in other forms of circular knitting machines for producing seamless split foot hosiery.

The invention consists in the teotnres'zinil ('OlllbllltlllODS hereinafter ileseribeil and reterretl toin the ehiinm The various features of the invention will he understood from an inspection of the noeoin mnying drawings, and the following detailed description of the machine illustrnte fl therein. i

In the drawings Figure 1 is a left-hand side elevation. of a. knitting ,machine enilmilyingz the invention in its preti-n'red form; Fig. 2? n tront ele 'ation of the machine; Fig. 3 is a detailed sicle elevi'ition of the devices tor controlling: the yarn ehanging guides: Fig. lis a detailed elevation showing the cam for controlling the needle clepressing or Widening pickers; Fi a detailed elevation showing the mechanism for :ietnziting the shaft which carries; the came for eontrolling the vzirione ineehir:

' nisms Ofthemachine: Eng. 6 is it view showmay he and needle operating devices in position for rotaryliznitting; and Fig. 7 is a view showing a developmentof the cams for actuating" the yarn guides which deliver the yarn to the knitting waves formed by the main knitting Cams and also the cam for moving the main sinker cam in andont.

The n'nu'lii ie ESJQWH in the drawings has the sen L eonetrnetion and mode of open tion as the-innehine shown-and cleseribetl in the patent above referred to. except-so far as this eonsti'netion and inotle of operation is ehangeci and modified hythe incorporalion of the present improvements in the 1nachine. in this machine the needles 1 are of the type known {is latch needles, and-are carried in a needle cylinder 2 which is mounted for rotary and reeiproeetory moveiinent. and the needles are operatedandeone' trolled during the knitting by emits carried by a com plate 3 which may lQOhTOVQd vertiaeil v to control the length or tightness of the elite-h LtllilWIl by the needles. *Thenee- (we; ai-e divided. into two substantially semi circulate g t-"oops, one group being provided with long butts, ftllCi the other group with short. butts, the tw series overlapping to provide short and long butt siitnre needles, as Inlly disclosed in the above patent. The

rleviees carried by the cam plate 3 r fe the name lIICOl'lSl'IUChlOIl and mode of 'o" eration 11% the devices shown and describe" in the above potent and'eomprise tlieinaiin-etiteh mine 4. the sn iplementzil stitch cams 5, the l'lQQtllQ elevating or narrowing pickers tiythe needle tl(l ll(.SSlllg or wisiening pickers 7, the some 8 and A ter raising the instep nee {lice into the iinietive plane enc'tretni-ning them to the active plane. the neetlle depress inn cains 10 for directing the 'long'b'il nee- (lles down into the supplemental knitting eamsrlni'ing the knitting of the foot, the (uni 11 for elevating the long butt needles (luring the knitting of the foot, the eanisflQ for completing the 'clownwzircl movement. of the short butt needles rlepreseeclhy the e uns ll), entl the supplementalpiolzer'lti forriiismg the rear short ontt sutine needle into theinoetive plane (hiring the first reverse stroke on the heel zincl' toe. The eznn egrryin white 3 is supported upon. a rertiee'l sliding her l4- nfhieh inay heraised or lowerecl to tighten or lo oeen the stitches drown by the knitting earns, --Tl 1e yf ei'tiealrposition of the bar 14 anti com oarrying plate 315 m trolled by cams formed one cam disk 15 secured to'the cam shaft,16,-and arranged to act upon pins 17 carried by an itrm 18 secured to the bar. y l

The supplemental cams 5 are moved radially outward to bring them into position to act upon the long butts only, or radially inward into position to act upon both the long and short butts, by means of a lever 19 connected by'a link 20 withthe bell-crank lever 21 which raises and lowers the cams 8 and 9. The bell crank lever is connected by means of a link 22' with the .clutch ffshifting lever -23, so that cams 8 and-9 areraised to throw up the long butt needles za nd thesupplej mentalcams are withdrawn from the path of the short butts. when the motion is Y changed from rotaryl to reciprocatingat the beginning of the heel, and cams-8 and 9' are lowered to return the inactive needlesto the active. plane and the supplemental cams advanced to actnp'on all theneedles when'the motion is changed from reciprocating to rotary at the completion 10f the toe.

Y The needle depressihg or Widening hick ers 7 are raised and lowered to render them active or iinactiveat 'theproper time by a' ,cam 24 on the cam shaft 16 which is arranged to engage one'end of a lever 25. The othere'nd of the'lever is" connectedby link 26 witha lever 27, the end of which engages the lo'werend of;the*pin28;}- The uppreud of the pin eiirrie's the plate'29 W'hiOli'lS far- "rangedtoenghge the depressing pickers and move them into and outof active position: The picker 13is thrown into action at the -beginnin'g-ofQ-the heel and at the beginning a of the toe'by])ins 30 arranged to engageone endof ale-yer 31, the other end of which is connected to the pickeractuating rod 32.

Thefwing ic'g'ijmsvltl are advanced at the completion"ofthe heelhnd retractedat the comnletion of theffoot by a cam lug 33 arranged torngage the'en'd' a ,leverfitwhich is con master the aetuatiiig' slide 35. by the link:

'. bell crank r3 7; and'link 3S.-

- fl -The webholding sm'kers are retrscted and advanced at the knitting points by main and "supplemental the sinker eam ringv39. The sinker cams are radially movable ga'ndf are 'pressed inward into inactivepositiotnby; springs 40 and 41. The main sinker eam'fis held out in its active posit-ion so that it aets; to withdraw the sinkers at the-knitting point by a bell crank lever 42 which isfconneoted by a cord 43 with the rear end of a lever 44 The frontend of the lever 44 rides on an annular cam rib 45 carried'by the cam shat U16. The

framcrib is provided with ushorttlepr'ssiop 46' which rcgiisterswith the end of the lever "i t. and allows-theqsinkeb cam to more in- 'd into "inactive position during the runoff of a completed stocking and the beginuing ot a' new stocking. After a few through spring :actuated takeup ,lt'hrouglr-thrad guides] 57 and 58, and through-gs teiiioni-device 59 which is arranged over the su'pplycop 60. Either mjker cams mounted in" guide For the supplemental courses have been knit; on the new stocking,

the lever 44- rides on to the-high part of 'the cam rib 45 so that the sinkericam is held in active posltion during' the knittingof the stocking. The supplemental sinlger'cam is held in active position agaiiist-fait he tension of the spring 41 by a cam finger 417 formed at the upper end of a verticallyslidiug rod. 48. The rod is connected withan actuating lever 49 themoveme-nts of which are controlled by a ram 50 seburedt'o the cam shaft 16 and arranged to engage one end or a lever 51, the other end of which is connected by a link 52 with the lever 49. The cam 50 is recessed to withdraw the cam finger .147 and allow the supplementalsinker ea m to move radially inward into inactive position so that'itf will not withdraw the sinkcrs during the knitting of the heel and toe, and during the runniugofi' of'a completed stocking and Ethe beginning ora' new: stocking.

The latch ring 53 is provided with a yarn guide 54 through whichblaok yarn is fed to the knitting Wave formed by the supplemental knitting cams during rotary knitting on the leg and during reciprocatory knitting on the foot. The yarn B leads fromfthe thread guide through a thread guide 55 formed in an overhan ing arm arrangedv above the knittingw'hea' and thence black or White yarn is fed to the knitting Waveformed by the'main knitting cam by means of a series of three guides 61. These guides aiJpivoted at 62 so that they may be raised, to withdraw the yarn from the use dles, or may be lowered to feed the yarn to the, knitting waver They are held in active or, yarn feeding position by springs 63, and

are raised to withdraw the yarn by a series of lovers 64. When one or more of the yarn guides are raised to Withdraw the corresponding yarn or yarns from the needles, the yarn or yarns not being fed to the needles'is held inside the needles by a retainer 65, so that the yarn is properly presented to the needles when the guide is again moved down into active position, The retainer is lifted to allow the yarn to'pass under it by a lever 66 which is operated by an upward movem'ent of one of'the yarn guides, and is immediately released by a short downward movement of the guide so that the retainer immediately engages and holds the yarn. The levers 64 For raising and lowering the yarn guides (51 are connected by cords 67 with lovers G8, 6!) and 70. The lever 68 is connected to operate the guide 'for the black yarn l The lever 69 is' eonneoted to operate the main white yarn TV, and the lever 70 is connected to operate the white-- yarn nose-ear 'w. The levers 68, 69 and 70 are operated to control the feed of the yarn to the knitting wave formed. by the main knitting cams by the cam ribs 71, 72 and 73 respectively which are carried by the cam shaft 16 and are arranged parallel to the cam rih 45 for actuating the main sinker cam. The cam ribs 71., 72 and 73:5 are so shaped and arranged, and the cam shaft 16 is so actuated that the black yarn B. is fed to the needles during the knitting ot' the leg of the stocking, and-is also fed to the needles during a part at least of the narrowing on thezheel.

After the heel has been partially completed the yarn guides are actuated to withdraw the black yarn and to teed the white yarns "11" to the needles during the completion of the heel. The white yarn w is withdrawn at the completion of the heel, and the main white yarn fed to the knitting wave formed by the nlainknittin; cams during the knitting of the foot. At the completion of the foot the supplemental white yarn in again fed to the needles with the main white yarn.

and the feed of these yarns to the needles continues during the knitting of the toe. At

the con'iplel'imi of the toe the supplemental white yarn w is-again withdrawn. and the main white yarn is fed. to the needles :t'or a number of courses of rotary knitting. Then all the yarn guides are raised to run off the eon'ipleted stoekin and iinniec liately there after the n tride tor the black yarn returned to position to the blast: yarn to the needles during the knitting of the leg of the succeeding stocking. provided witha lug 74: for raising the guide for the black yarn B suflieiently to lift the 'yarn retainer 65 when the black yarn is withdrawn fronrthe needles, and the cam rib 79 is provided witha lug 75 for raising the guide for the white yarn lV sutlieiently to raise the retainer 65 just after the main white yarn is withdrawn from the needles, so that the white and reinforce yarn may pass under the retainer. The yams B, \V, 40 pass through suitable guides above the knitting head, and each of the yarns is led through a spring takeup which acts to keep the yarn taut while it is being fed to the needles during, reciprocatory knitting.

The cam shaft 16 is intermittently fed during the knitting of a stocking to automatically actuate and eontahl the devices for operating upon the needlesand feeding the yarns. by a pawl 76 arranged to engage teeth fori'ned in a ratchet wheel 77 which secured to the cam. shaft. The pawl is earlied by the. osillatin ;segment T8 of the motion changing mechanism so that it is continuously reciprorated. and the pawl is normally held outot engagement with the teeth of the ratchet Wheel by a guard lever- 79. The guard lever is held in normal position by a spring 80, and is rocked to allow The cam rib '71 is wheel by a series of lugs forinedon a pat:

tern chainSl and arranged to engage a lug The pattern chain 13 car.- med on a sprocket wheel which is loosely 92 on the lever.

mounted on the cam shaft, and fed dur-.

ing the operation of themaehino by a pawl similar to the pawl 76 which engages a ratchet wheel 83 secured to the sprocketwheel. are of yaryinglengths. and the lugs onthe pattern chain. are of the proper length and properly arranged to rock the guard lever so that the pawl will properly engage the tooth of the t'ateliet-wlieel which in position to be ent ty flocked. ii hen there is to be. a (tempera-- tzvely tort forward feed of the cam shaft. a short i hr; each as shown at rocks the guard iever sutnciently to enable the pawl to on 1 one of the long teeth on the rah wheel. :it intervals during: the knitting the stocking the ratchet wheel and vain s i re given a short feed and. than a lon int diutely toliowing the short teed.

sirh a deuhln lug. such asah-riwn at upir the guard lever, 'i'ii. The low of the double lug tirst rocks the guard to er to expose a short tooth. and than the higi'i part of the double lug: rocks the lever to a greater extent to expose the sum-crating long tooth on the ratchet wheel.

The teeth on the ratchet. wheel 7T l it when the guard lever is such as shown at St enga g. the our (m the guard level. and roelts me Assuming that the. inarhine is operating to knit. the upper part of the leg; of a stocking. the levers ll. UR (it) and it) will be at. the point indicated at 7 in Fig. 7. The

guides for the white yarns \V. in will he rai ed and the guide tor the black yarn'lv wilt he in position to teed the yarn to the needles. widening pullers will he on the high part.

.24 of the cam and the widening pickers willhe up in fli'l'lVO position. At this time the tooth '77 (it theratrhet wh el- 77 will he at the point t) in 'iositiont'o he ei'ng'aged by the pawl if; when the guard lever rocked to uncover the tooth. During the knitting of the leg at the stocking the pawl it) acts upon the tooth T7 and the live short teeth unn'iediately Followingit. and feeds the rain shaft forward so that the fashioning cams The lBYQl .25 which controls the on the disk l vary the height of the plate 3 ride along the low part .71.:of the cam .rih

and knitting! cams to fashion-the leg otthe- .stoel nig During these feeding n'iovenients 71 Winter the lovers Gil and 70 ('ontii'lue to,

:ride on the high parts??? and 73? of the cams 752 anditl. and the level 935 continues to ride on the high part 24- of the cam 24.

WVhen the heel is reached; the pawl this I engaged with the short tooth 77 to give the cam shaft :1 short feed, nndis then immediately ngaged with the long tooth 77 to 'give the mm shaft a long feed l.)nring the, short feed the sp-ed of the machine is changed by the speed changing can], the supplemental sinl er ealnis ihrown ont oi nctionyand the Welter 13 is thrown into action. *Dii'ring" the long: feed the clutch lever is shift-ed by its cam to change the motion: of the needle eylindel' from rotary to reciprooating. long feed alsoqides into the moose 24 of: the cam 24, so thatthe-widening pickers are moved down out of active position. The shiftingof the clutch levee 23 mises the cams 8 and 9in tln'on the long butt instep needles up into the innetive plane, and the narrowing hegins'. it-this time the yarn levers 68. 69.;nnd T0 are at. the point indicated at 88 in Fig; 7;, and the black yarn is still fed to'tlie knitting Waveformed by the main knit-ting cams. 1

In order that that part ofthe heel which is knit with "the single hhickym'n may have the same appearance usthat part of'zthe heel whiehi's knil the m-all1 }\"l1lt iyex n'nnd the reinforce yarn, th'cam carrying-plate 3 is raised to tighten the stitch in going on to the heel.- Fox-this purnoseflthe c'am disklfi is provided with aprojeeti'n'g lug 89 which is brought under one of thepins? by the} long feeding movement jnstdeseitibed and- Which remains under this pin until the earn shaft. is given its next movement.

After the nanrowing has been partly completed the pnwljflfi is engaged with theshort tooth 77* and the cani shaft is givenn l ort feed. Dnring this feed the: 'ym'n le'v s 69 yarns W; w witlith needles Immediately thereafter the yarn lever 68 rides'np to. the

highlpart 71 of the-(ism, nib 71, thus with drawing the bee-)1; yarn. In passing-on to the high part 71the"le\'*er pals. overthe.

lug 74 so that the retainer 65 is raised to allow the black yarn to pass under it, and. is then immediately dropped to retain the yarn. Aftei this feed the yarn levers are at the oint indicated at. in Fig. 7. In

order tii this. feeding movement of the cam slmftnmy notithrowthe Widening pickers intoopemti the recess 24: in the (can: 2+2 is of such length that the lever .25 still rev 21 movement has been completed. All the end of the narrowing the niiivl 7G engagesthe short tooth .77? andgiyes the eam she a short feed bring the endpfthfi lever 25 11121 onto the hifli 112M24 oftlie cam 24, and thus reisethe'n'idening'cgnns into active position. ;Dn ring;"t hisfeed the yarn lever The lever during the into :wtion. limping: the long fees lever TQ'mdes lino the low part T3" of the the toe'begins. After the narrowing i the widening pickers are thrown into n" At the eompletlenof the widen ng the i this feed'the yarn levers are at the point "1 dieated at 91in Fig. 'i-.. The'yarn lever is still in the low part 72 ot-the .arm '72,

ins in the I'eeess after the feeding 70 corresponding to; the reinfoi' e White et: the

c mm 1-3, and the i einforee yarn eonumiesto yarn w still ridesih the low part.

be fed to the needles (lilting the Widening on the heel. Atthe completion of the heehthe pawl 76 engages the long tooth T7" and. gives a long feed to the. tram shaft. inning thisi teed the wing cams 10 are th'mtmn into so u 73.-so that the reinforce-yarn d" s nged from the needles. -At the completion lit the feed the pawl TSengnges thesho -t. tooth T i'" and gives the cam' shaft afshort teed, and. then inimed'igitely ei'lgagesthe long tooth T7 :llltl' gives the cam shaft :1 long feed.

pwsition the wing cams 10 are moved out of.

active goositiilin, and the picker 13 6' min T3, so thatthe rcinioreejzu-n w. is led to theneedles during the knitting of the toe. 'Dm ing this longvfeed also the level if rides into the recess Q l of the cam 2 1, as that the widening pickers fll'O-II'IOVti down into inactive position, and the nnri'owin m .pleted the pawl 76 engages. the short timill 7T, and-gives theenin shaft :1 short: feed During this feed the lever 25 rides up on is theihiglnpart- 24E of the (min 24, so that l on.

'Ttiengages the long tooth Ti -9,andgives the cam shaft :1 long-feed. 'Dnz'ing this i the sieedlis ehnn'ged, and the *c'lutch lever is lifted to Change thein'otlon fnoin' rotary. to

eeiproeatihg. The supplementslgsmkei' mm is thrown into actionyandthe'. {U311 lever it) rides tip on to'the'high piartfti i of the. 73, thus discontinuing; the i teed the rem" force yarn in to the needles. At, the end of and the lever'68gisj still on th'high xhiit i of the cam 71, so that the whitei yazn TV 5 still fed to the needles. .Fbfafeweom of rotary knitting, White ya-i'h is fthe're fed to the knitting wa ve-forinedhythe in knitting cams, and black ya-121' to the f.- ting wave. formed by the snpplemenmihe ting earns. After a few" courses he e h kiiit the pawl Y6 engages the tooth gives theeamshaft a tong feed the first part of this teed thoyarn lever rides .on to the highpart'l'fi", of the min and the lever 68 still remiiinsen the h iii-L71! of the cam 71, so thatne we fed to. the knitting Wave fol-m sh zi oseeezs -,main knittingraxns,and consequentlythe 1 ranged to, maintain the guides invposition ,finished stocking is run oil" the needles i i .During the latterpart of this teeckthe yarn lever tiSrides oil the end of the high part ,71" and drops into the low part 71?, so that the Thlack yarn B is fed to the wave, formed by; the main knitting cams. During the latteripart of this teed the lever a l through wlnch the main sinker cam operated enters the recess 46 in the cam rib lia se that I the main sinker cam is out of action during .-of the new stocking.

the running on of the loops at the beginning The supplemental.

sinker cam is also out of action at this time;

After a few courses haveheen knit the pawl 76 engages the short tooth "i7 and gives the cam shaft a short teed. .During this feed both sinker cams are thrown into action and the lug T5 acts to raise the yarn guide for the hite yarn W For an instant, so that the retainer 65 ie'lii'itecl to allow this yarn and thereini'orce yarn w'to pass under it, and is theii'r'eleas'ed to hold the yarns This feeding movement completesthe rem-- lution of the camshaft, and completes the cycle of operations performed in knitting each stockin lVhile it is, preferred to employ the spe- -citic construction and arrangement of the parts shown and described in embodying the 'invention'in the machine shown in the. patent referred to, it will be understood that this construction and arrangement" are not essential except so far as referred to in the claims, and may be varied or modified with (nit departing from the invention.

' Having explained the nature and object of the invention, and specifically described one form of mechanism inwhich it may he embodied, whatLclaim is':-

1. A (Eircular knitting machine for knitting spliiqf o't stockings, having, in combination, semi-(ircular series of needleshafving' long and s hiirt butts respectively, main knit-. tingcams, supplemental knitting cams ar ranged to act on all the needles during rotary knitting on the leg, needle lifting and depressing pickers mechanism for rendering the supplemental cams lIXaClZlT! on the short butt-needles during reciprocatory knitting, devices for rendering the long butt needles inactive during reciprocatory knitting on the heel and toe, devices for rendering the supplemental knitting ,cams activeon the long butt needles during reciprocatory kn tting on the foot, a yarn guide for feeding black yarn t0 the knitting wave formed by the supplemental knitting cams a plurality otyarn guides for feeding black or white yarn to the knitting Wave formed by the main. knitting cams, a camshaft carrying cams for controlling said mechanisms and devices, means for, advancing the cam shaft during this, advance movement of the Team shaft -and means for advancingithe cam shaft during the knittingv of 'the hecllito shift the yarnguigles and change the yarn from hlackito White, substantially as described. a l i i 2. circular knitting machine for knitting split foot stockings, having, in combination,-selni circular series of needles having long and short butts respectively, main knitting cams, supplemental knitting cams arranged to act on all theneedlos during rotary on the leg, needle lifting and depressnig pickers, mechanism for rendcrii-ig the so i demental cams inactive on the short butt needles during reciproeatory knit-.

ting, devicesior rendering the long butt needies inactive during reciprocatory knitt-i on the heel and toe, devices for render- H17 the supplemental knitting cams active oil-the long hntt needles during reciprocatory knitting on the foot, a yarn guide for feeding blackarn to the knitting wave termed by the supplemental knitting cams,

a plnraiity of yarn guides for feeding black or white yarn to the knitting were formed by the main knitting earns, a cam shaft carrying came for controlling said mechanisms and devices, means for advancing theucam shaft at the beginning" of the heel, cams on the shaft for operating the yarn, guides a1" ranged to maintain the-guides in position during this advance movement, and mechaing the cam shaftafter narnisin for adveng rowinghas been partially completed to shift the yarn guides and change the yarn from black to White, substantially as described.

3, A circular knitting machine for knitting split tootstockings,'liavi11g, in combination, send-circular series of needles having long and short butts respectively, main knit,- ting cams supplemental knitting cams ar;

ranged to act on. all theneedlcs during 'o-' aiid tary knitting on the legyneedle' lifting depressing pickers, mechanism for rendering the snppleimental cams inactive on theshort hiitt needles during reciprocafery knitting, devices fornendering the long l'nitt needles imictivemluring reciprocatory knitting on the heel and toe, devices for rendering the supplemental knitting ca ms active-on the long butt needles during\reci roc'atory' knit-' ting on the foot, a yard guide for feeding black yarn to the knitting wave formed by the supplemental knitting cams, a plurality of yarn guides. for feeding a black yarn, a main White yarn, and a reinforce White yarn to the knitting Wa'veformed by the main knitting cams, mechanism for operating the guides during reciprocatory knitting on the heel to Withdraw the black" yarn and feed the main and reinforce \vhite yarns, and mechanism for raising the main knitting cams to tighten the siitch upon the Corrections in Letters Patent No. 1,034,665.

ting split foot stockings, having,- in cmnhination, av needle cylinder, needles therein cou1-- prising two' sei'ni-circulargroups,'c ams for operating each group'of needles, narrowing. and widening devices, mechanism for ren-- dering the cams for both groups activelon all .the needles during rotary knitting and the cams for each group active upon its own group during reciprocatory knitting, means for rendering"one group of needles inactive during the narrowing and widening, a yarn guide for feeding yarn to the knitting Wave formed by the Cams which are inactive dur [SEAL] Signed and sealed this 22d day of October, A. D., 1912.

ing the narrowing and widening, a. plurality of yarn guides for feeding yarn to the knitting wave formed by the cams which are active during the'narrowing and widening, a cam shaftcarrying cams for controlling said mechanisms and devices, means for advancing the cam shaft at the beginning of the heel, cams. onthe shaft for operating the yarn guidesnrranged to maintain the guides in position during this advance movement of the camshaft, and means for advancing the cam shaft (luring the knitting of the heel to shift the yarn guides and change the yarn from black to white, substantially as de' scribed. I

EVERETT H. W'ALKER.

Witnesses ANDREW G. Swnrr, BENJAMIN V. (ELEMENTS.

it is hereby certified that in Letters PatentNo. 1,084,665, granted August 6, 1912, upon the application of Everett H. Walker, of Lowell, Massachusetts, for an improvement in Circiilar-Knitting Machines, errors appear in the printed specification requiring correction as follows: 1a.ge 4, line115, for the Word amt read cam, page 6, line 16, after the word group insert the word only} and that the said Letters l ate nt should be read with these corrections therein that the same may conform to the record of the case in the Patent Otfice,

e. o. BILLINGS,

Acting Commissioner of Patents.

Corrections in Letters Patent No. 1,034,665.

ting split foot stockings, having,- in cmnhination, av needle cylinder, needles therein cou1-- prising two' sei'ni-circulargroups,'c ams for operating each group'of needles, narrowing. and widening devices, mechanism for ren-- dering the cams for both groups activelon all .the needles during rotary knitting and the cams for each group active upon its own group during reciprocatory knitting, means for rendering"one group of needles inactive during the narrowing and widening, a yarn guide for feeding yarn to the knitting Wave formed by the Cams which are inactive dur [SEAL] Signed and sealed this 22d day of October, A. D., 1912.

ing the narrowing and widening, a. plurality of yarn guides for feeding yarn to the knitting wave formed by the cams which are active during the'narrowing and widening, a cam shaftcarrying cams for controlling said mechanisms and devices, means for advancing the cam shaft at the beginning of the heel, cams. onthe shaft for operating the yarn guidesnrranged to maintain the guides in position during this advance movement of the camshaft, and means for advancing the cam shaft (luring the knitting of the heel to shift the yarn guides and change the yarn from black to white, substantially as de' scribed. I

EVERETT H. W'ALKER.

Witnesses ANDREW G. Swnrr, BENJAMIN V. (ELEMENTS.

it is hereby certified that in Letters PatentNo. 1,084,665, granted August 6, 1912, upon the application of Everett H. Walker, of Lowell, Massachusetts, for an improvement in Circiilar-Knitting Machines, errors appear in the printed specification requiring correction as follows: 1a.ge 4, line115, for the Word amt read cam, page 6, line 16, after the word group insert the word only} and that the said Letters l ate nt should be read with these corrections therein that the same may conform to the record of the case in the Patent Otfice,

e. o. BILLINGS,

Acting Commissioner of Patents.

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