US1018063A - Circular-knitting machine. - Google Patents

Description

BQB. KILBOURN.

W/jw ES,

-cmoULAR KNTTINe MACHINE.

APPLICATION FILED DEO. 1902.

12 SHEETS-SHBET 3,

.Patented Feb. 20, 1912.

E. E. KILBOURN. GIRGULAB K'NITTING MACHINE.- l APPLIUA'TION FILED DEQ. 16, 1902.

Patented Feb. 20,1912.

12 SHEETS-SHEET 4.

eik.

'Nl/ENTOR E. E. KILBDURN. lCIRCULAR KNITTING MACHINE. vurmomfox. 1711.51) ma. 1e, 1902.

Patented Feb. 2o, 1912.

'12 sHBBTsrsHBET 5.

v [NVE/WOR E. E. KIIBOURN.

CIRCULAR KNITTING MACHINE. l

Panennedeb. 20, 1912.

APPLIOATION FILED lnx-.0.16. i902.

12 slums-SHEET es.`

nnnv rj lllllllll Illlm" p- E E KILB OUEN CIRCULAR KNITTINGAMACHINE. APPLICATION FILED DELIB. 1902. M 1,018,063, y Patented Feb2o,1912. 4

. 12 SHEETS-SHEET 7.

E. E. KILBOUHJQ.l I'CIRCULAR'KNIT'TING MACHNB, APPLICATION FILED, DEG. 1e, l`19021.

Patented @10.20.1912.

12 SHEETS-SHEET 8.

[NVM/Tok .Mmm

Wim/E5 @www v E. E. KILBOURN. CIRCULAR, KNITTING MAGHINE.

APPVLIOATION I ILED DEO. 16, 1902.

'Patented Feb. 20, 1912.

12 sums-SHEET 9.

' produce prior to jmy1nvention."

nnWAnD-E. 'KrLBoUnin OFNEWBRUNSWICKWEW JERSEY, Assieme. To THE KILBQURN KNITTING MACHINE COMPANY.

.CIRCULAR-KNITTNG' MACHINE.

i 4Specication of Letters Patent.

PatentedjFeb. 20119.12'

estimation meui'necembeie, 1902; se'ria1Nb135",42o.

To all` concern:-

lBe it known that I, EDWARD E.' KILBOURN,

Vcitizen ofthe UnitedStates, residing at it appertainsvtofmake and Vuse the same.

New Brunswick, the.-'county of Middlesex Y andState of New Jerse have invented certain new and'usefulflmprovements in Cire culareKnittingv `ll/lachines; and I do'hereby declare the following'to be a full, clear, and exact description `of the invention, lsuch' as will enable others' skilled-in the art `to 4which My invention relates to the artv of lm itting' .seamless -hosiery v and, more particularly' to l the'lclass'fof.circular knitting machines that are use d in knitting seamlessxstockings and 1t consistsincert-am ,new constructions and combinations of partswhereby l such mal chines'fare enabled to produce. stockings .possessing decided featuresaof noveltyandA which such machines. have been unable 'to in the accompanyi g .drawings 'I have. shown s one. 'form in which inventionis disclosed 4in the `following dev scription and A. claims.

`. vanaaf uw ien hand @In .thefsaid drawings,-'Figure 1 is an eletlieftype described embodying my present ,Invent-ion.; Fig. 1a is a similar view ottiene ri( ht 'f .h'and'end of the machine, the f' two fvcwsfiorming ant'elevation, of the trent,l of fthen-ifachinez.; Fig. '2 visa partial elevation.

.of the' rear vside of 'the same machine, andi Fig. 2a is' another partial View "in elevation of the sanie'side,f'the two views forming. a

'congelate elevationof the rear side di' the said machine; FigQSis an" elevation :ofi the f entenderla nf the machine. rig. t an;

`end of themac'hine v. Figjis a section n!" .line m-faz, -`Fig. 4,' looking downward. Fig.

V.'l'is.anjenlarged detailof the' ends of the thread guide slides engagedgiby thecams for. @operating suchl guides. Fi'g'. Lis a' detailin perspectivewlof the parts 'f-l'fperating the ad guide cams. "Fig, Slis-az'partialview of the rim of 1 th' ef pattern lFig. 9 isa view offj-.thef' interior of.` iper cam cylinder developed -in 'fe y it line.l Fig. 10 is a similar' viewofv i, tationary ring between-the cam-cylindarli? Fig. 11 is `a .sectional lview of said cam'ring. Fig;A ist a view/of the Iinterior I have contemf` .plated yembo'dyin't'gf--my invention and such end `of 'a machine, of

elevation 4of tlfiev thread carriers l'and their'j Y"slnoporting parts looking, from 'the left ,ha dr of the lower cam cylinder developed in like view of the upper cam' cylinder online f y ofFigzl.l Fig. 1 5 is a partial plan view of the lower cam cylinder. Fig. ll is a section of the same online 1 1- on Fig. l2. Fig. 17 is a tthe 'upper cam cylinder. FigflS is a view of -thelike parts ofthe lower cam needles.

Fig. `19.shows'the manner 'of 'loosely connecting the two parts of the needles.

20..is a detail in perspective of the part-s employed to control the movable cam ofthe manner. Fig. 13 is a partial View of the upper cam oylinder.- Fig. 14 is a sectional view kof the camengaging slides l' or 4Jacks forming Va part of the needles of' 7o upper --carn cylinder. Fig. 21 is a view 'of the periphery of the pattern cam wheel developed in la straight line. Fig. 22 is a partial view of the inside of the samej4 Fig. 23 is a vdetail view in perspective of the parts f .for controlling the movable cam of the lower Fig. 24C is anenlarged detail cam cylinder.-

of the lever operated upon bythe .pattern wheel. Fig. '25 is a detail of shaft GrV and attachments.

circular` knitting machine of the general type shown. in my former Patents No. 669,730, Mar. 12, 419Oband- No. 679,281 of IIn these drawings I havegshown the novel` features of my invention as applied to .fa

v IJ1'1ly 23,.1901. The machineshown in said `patents isa vfull' automatic machine for,

1knitting full and half hose and with mechanisinfor narrowing' vingto. produce vthe heel and toe is provided pockets and Suchjmechani'sin is shown in thel drawings filly improvements are. embodied. the new resultsxaccomplished by inproved .constructions .is'the knitting. "of -a'lace stockingwhich i's-also striped, and said stripes 'extendacross the lace portions as well as across the plain knitted portions. AnotherV of the results produced' by my .theff leg" .of "the stocking, if `this is desired.

Vingof open work sections down'theback of .theileg of'thestocking as well as on the front lof the'stocking and these open work sumed beforethefnarowing and widening and widen-. l

' these koperations are brought about at the propertimes by automatic appliances.-

" Y Another vresult accomplished-is4 the formsections'are closed and'plain knitting is reg g present'machine is the Varyingpfthe pat-4 4 tern lorlace` work 'at 'different intervals' down n'i'echanisnifi's' 'put in ope'rati'inl.Iv open Work upon. the'back is controlled byv vpntternj mechanism and can' becommencedand -discontinued at any. point 'or' points desired 'back independently of each other.V

'f A A". the Supporting standard s these parts the-operating mechanism.

The -machine isprovided tix-io cam 'cylinders of vlike /ehar'acter tothosefjofthe earlier -patents above referred to. Each cam "cjilin'der' engages andoperates one 'half of; the needles of thef'xnac'hin'e'. v The cam cyl-inder @engages and 0pe'ratesthe: needles' Whichknit vtheffrontl half of lthe stocking .atesthe needles whieh'knit the back half 'of These cam cylinders' are mounted and operlated vvin 'substantially the same manneras the 'two c am cylinders of the patents-above 30v `'complished mainlv by the peculiar arrangement of cams in .the cam cylinders and the referred-io.: The results .set forth are" acmode of controllingl and operating the'm In Fig. 9 I.. have shown theinterior of the upper cam cylinder B developed in a. straight line." In this figure b is theusualknitting cani 'for ordinary'plain knitting. Z2- -i-s vanotherfcam .of similarsize and form except.l

'that itis .of about hal/fthe tliicknessof cam erated 'upon by this cam cylin'der'are shown '6.- g This device valthough .termed a' cam,

might.. be given.` another appellation'and termed switc`h, as'it` changes' or switchesv the' needles that are en e'ag'ed'by ityfrom the position occupied bv Ithem when" they 'are unaffectedl by this device. .i The .-needlesop'f l referred 'to' the needles used in the machine are shown with the upper end provided- Withf the h'ooland latch rigidly secured to thel .main body ofthe `needle which' isof'latthinl 'materia-l to fit looselx7 inthe needl'e'g'roovesf ofthe needle cylinder. .Ingmy improved'-v maohineIprefer to forni eachne'e'dle-in" tiro- 'parts X and X The upper-partbeing'provided'atitslower end with .a 'short-portion fz/ at approximatelv right-angles to' theni'ain bodv andcachot the "lower portions are constitutingzthe' main supportingframe for *We shall herei-nfrefer to'-.thepeculia-rities' of' Sto' the.4 needles .the pr-oper' distano 'the'stockin-g and the heel and -toe. pocketsrto'passthecam-Withontengagin' needles. however, 'arel pry'ide nibslf'r?" of 'greatest length'. 1 when the cam'- is in.' the position-shown inlfig; 1 9. arejfen.'

this cam with thel rest1lt tli at *all "of ,the-...nee-

element of the-.mechanical 'coinbin tie in 'this nstaneefftliis l'o'tv'er partfSfi'El-li' method', 't uniting.' .the tivo vv'parte illus AS it is of 'ne -imprta'imein the Operation the needle :are rigidly orjlolo'sely connected, 8o.

tivegpositionfatffanyftime deli'irer pressed casting off the loop' 'onfifthegneedlefr The tension on" .the f xveb. 'thereu p'on jd1rews.' J fhei l'onou'f jiu a @freight line fom-1mg:

of the@mfr-cylinder.. Theil-(iene actuate's or .moves-fthe camfor.'

.different 'lnolsitionsx The flee end ver is provided with :1 nfV interposed 'bef 945 ofthe 'rod D2 is secured thewarmvE and` @a site tf the slide-Qt sliding datent tte fhofdlt 1n either i-tselevated or depressed' position. This sliding. detentpr retainer h movably mounted in a guide way bxton the outside of the cam cylinder and is yieldthe spring 296. v

The cam B3 engages the'lever B2 and by such engagement moves the lever or actuating-member. either upward or downward.

`ingly held in cont-act with the .lever B2 by 'This engaging vmember ofthe mechanical combination is preferably termed a cam and operated jto'eifectthe necessary changes in the position ofthe` cam b by certain instrumentalities which 'I will now proceed to describe.' t l In the patentsv above referred to a cam wheel 1s used to control the work of the mat chine and to bring about the changes from circularl work -to reciprocating workin conjunction zwith thefnarrowingand widening' t -devi'ce's and whichl latterdevicesare broughtlinto and thrown out o'f 'operation by the; "said wheel. This 'cam wheclis retained-in 'my present-zmacl1ine to perform the same.

" functions-and also tocontrol the position of 4the cam bf through appropriate intervening mechanism; This cam' wheel which is designated bythe reference letter Dis provided 'near the outer edge .of itsgrim with pins c on the inner face of therim. A' bell crank `lever d has an arm'al` adapted tofbe engaged by these pinsand thereby 'draw down link d2`.which is pivot-ally connected with thej other arm' of thelever d. A rock shaft D extending across the .machine andjou'rnaled 1' t 4in suitable bearings is providedwith anarm d? to which the" upper end-..of 'the link Z2 is connected.

At the rear'ofith'e machine (see Figf-Qtf the opposite end of the rock shaft D is 4 provided with the arma", which arm` extends tothe rightainil beneath'therod D7. The rod D2v i'sjmounted t in beari'r'igs so asf to turn and slide freely in them.A e .o'the upper end .said arm is provided with the pin eextenc-l-l ing downwardly and when the rod D2 `is in its lower-position -thispin engages" the pe 4 ,5 0

riphery of the cam' disk E; whichis-tsecured '.to theupwardiy extending portionof-,the-

vertical shaftB2, which' drives. the cam cylinders. Said shaft andy cam vilislrare 0f sub'- stantially the-construction shown 1n thePa't; 55

entv No.` 669,730'hereifnbefore referred to-'andwhichare thereinv stationary'. BetweenJthe-arm E2 andthe 11p.-v

`perbearing of therodisthev coiled spring riphery of the cani disk VIigrd'but -eected by springs- 'comes in Contact with the web' 4e5- which car 6 2 surrounding the rod D2 one end f .which 1s secured to the arm E2, and the opposite-"f end to the upperbearing of the..rod D2.

This Vspring isso adjusted as tocause thepin @of the arm E to press lagainst the pe- .Ef and to cause'the armY to,move toward the shaft upon which the' cam 'disk is mounted' when the pin'is raised above the rim lof the disk.

The arm E2is providedwith a 'screw e3' by whichthe amount of movement of the armsE and E under the influence of the spring is regulated.

The outer end of the arm E2 is depressed and provided with an opening therethrough opposite end of the rod E3 is -pivoted to the* so '1n which is loosely mounted the rodv E2: t The out-er end of a crank h on a rock shaft B'4 to 'which the cam B 3`is secured. The beari' ing ofthe rock shaft B4v is providedatone side withtwo lateral extensions bs and'4 67 and a pin 'Z210 secured to the cam B3 extends between them and the extentoftthe ment of thel cam B3 is thereby limitedggj."

@none side of thearm E2 the rod' `E? is provided witha Cotter A3* and on thefop-g ,posite side a spiral-spring. is placed around the rod' and held against the arm VE2 by an-V other Cotter-e4. This arrangement provides for giving thejfull movement to the earn BS I .required without the'necessity of securing a' perfectly exact a'djustment'of the arm .E3,-, 'f' s `as the ,movement in eac-h, direction is not Alien -a pin on the'cam wheel D moves the lever al to turn the rock shaft D', the arm al* is moved upward raising the rod`D2 and arm E andA also raising the pin' e above thev cam disk E the spring' e2then throws the arm towardthe center'of thejcam disk E can v'rying the arm E2 with vit causing it to move the Irod .E3 Vtto turn the rock shaft B'4 soIas indewr will bring the'projection 72'* to engage with the vunderside of the cam B"s the lever B2 and'the cani 7) downward to4 their lower.4 positions.

The 'cam disk E has upwardly-ex; ,I 115 tending,r im. Inside of the rim a web ej'? esitends from' the' rimt'o the. hub of the disk;

to, raise the point bfjof cam B3; In such'position the next revolution of the cam cyland move Atene Side of thisweb @t the rim of the disk,

87. .zWhen the.' projections on the insideof ries 'it outwardj` The gate e yieldsto peri' movement of the arms E.` and' E2 moves fthe :mitit to'pass tothe outside of the diskand- 4 then .closes `holding Vthe pin and` arms E and E2 in the positionseen in the drawing. This the point. of the carril?)3 downward. Then n ioved tothis'posit'ion on .the next revolu" tion the projection b4. on lever-B2 lwill engage the upper side ofthe caniBs'a'n'd thererod E3 to turn v the-rocllr.shaft. sodas tothrow by raise .the lever B2-ai1d canilb .toftheir- The. needles which engage-and .doper-" ated by the lower cam cylinder'are shown in.

Eig.. .18.' 'Aswill beseenfthes'e'needl'es are proyidedjwitlif-nihs. of two "different lengthsf -thefl'ower "Cain -eylinder C" developed.' in a 'tingfcanr'o-r:'the vcalnffor depressing; the I'i'eedlesto 'cause themfto ca'stfoiigthe 'loops' held on't'hem.' This caniengages-the'nibs'. .fofallof the'neelles'.v .After the needles 'pass the loivestfpfoint of '-.this cani.tlieyareslightly raised to relax thete'nsiono'n the threadpartei the saine of. aboiitone half .the thickness-.of cam a forming .thelowe'rledg'e- '0'4" above 'the 'plane ofthe lec'lge 0f and below the` upper ledge 65.5 The nibs of all of. the .j needles operated by this cam cylinder' are.;

. '1edge c4. At 'this point the needles. 4 dividethose having the .longer nibs .continning up along the vinolineot1 the fcaln 4toth'e ledge' ci.' by which movement .thene'edle's are'raised soja'sto cause .the loops on then'eedl'e's to pass -overfthelatches 'of' theneedles 4and into positioiftobe 'cast oit" when the needles are' againl '.ing'jth "shorter nibs is in... -t o'sition.; 'show-n 'in Fig. 12 the needle hlt-he' shortl nibs. a. are. raised and .the 'lo reon pass-loyer 'thel'latches' of .the vv'The'. .needles now: again take is,' however, movable andcan' 'he `-'d'ep 1 e.ssed; to a. positiongingwh'ich-the .nppertace 'of the :ca'mywill be in" the .planeofjthe ledge of".

i is' in this position the needles are high enouf'gh' to engage'. the threadh nt 'the-'latch notaba'ving passed above the loop on. the' needle', when such needles'jaredepressed they will not. casteil' but still reta-in the loops on" their; .and the threads'subsequently caught-. --or' taken4 bythe hooks of the. needles.' 1f now ithe'cam cs'fbef raised the needles with the short nibsY will'b'e raised tojpasslthe 'latches`- through the loops held upon them and taking;v another' thread. will be 'oj'fuerated--l -by. the carne to forma-stitch.

ving"vvl 1a' t-is known as thev tuck stitch. vThe .'cam .0?" is securedby a serew passing'through.

a sliot in the cam cylinder to a slideCf'which' ismovably 'mounted in -a groove; or .guide nd on: thec'ani' 'o' again engaging'. .:thmasfiash isz-knit. by each, The .Cam

part 4ofthe guidewaytor'the slide.v This s'lideC. is provided-witha 'shortzp'r'ojection f-` (SeQFgl-)wA .Y 'y '5 Thestatienary lring F interposed between the .upper and -lower cam cylinders is. 'p rotinnou'sjshort inwardly' projectingilange' f. Then the ca1n c3 1s` 1n its higher positionthe v l flange f.

position',-

lVhen-'the cam-.is lower position the away and'la vpo in.te' l switch cam F ispivf oted in'v the'space thus provided. The pivot.

means'of which .th'eff1jee'end'- or-the 'cam is proceedto'deseribe. ,The cain'wheel D herelnbefore.referred 'to-1s p 'rm'ided 'with' gear wheel DX rigidly..

lcani* 'Wheel' a y'pinion' on shaft Gr which i'iounte'd yinfsuitable hearings and projects .slightly beyond thefsi-de. .op'posite'-ythe- '.wh'e'el D."- (See-Figs. 3' andvQ.)

v'Near/the'"outer end 'offthe'shatjG is ..ratchetfwheel 5G 'which is engaged by a less size' than thecam -wheel D whichis [provided with projections@ The conneccalin :F are follows A .compound lever isplaced near the 'pattern cylinder H.' The gage the'pin'son the pattern cylinder. 'Near oted the. part ori-lever' i".. The lower end 'fof ythis lever .has a. lug orprojection in an `a-rxn .j secured toa' rock shaft vprojecti'o1' 1 .fof the'sli'de'C is below the flange. and is 'ke-pt. 'tl-iereby 'from moving-out 'of position". .A- tf 'one point. the' viangef f is. out..

moved up' or downtojchange the ,position'of -the 'slir.le"C -andcjan'1".c 3,"1 'lf-liiscaniF is'A actuated. to .inYe ca l'n'. 03. to its higher-and lower positions and lto producethese inter-- vmittenti;"stitches by means which l 'will now'v g'ea-rs with .-'tlie4 gear wheel'- D?. The shaft: Gafel'vtendsl transversely of the machine, isi' .part .iS'givQted tol thelfraln'e'v the` niajchin'egand 'has' projection extending at an f janglet'o the main 'body of the lever-.to enf projecting from the si-de. oppositethe lever 'This lug' 'or projection engages.` a.'v notch .eX-f' .tending transversely ofthe machine.' rock shaftiis 'proyidedwith la' 'springv which .tends'toturn the rockshaft ma. d1''- way on' theol-iter side I. camoylinder.- .v The sl1de"pass1ng behind the toothed ring .on .the Cain 'cyl1nder, said. ring-hecomesfavided .onf itsinner side with al nearlyv oo np roj'ection'f .of the slide C l'rests' upon the,4

vand is securelylh'eld 'in the higher.

v85.. of theeamextends to the outside-of the ring a and is 'then 'provided with the crank f2 by thefree. end of 'thepart orfleverfj is pitifoi' producing colr stripestaround the web, 'I

narrowing and widening devices,'and.means for aiiestingthe rotary movement ofthe ont ,of operation during the operation" of'- the l narrowin and WideningV devices,"- sub-" Stantiallyasj escribed.

the' st-itch; formin y mechanism 'for forming :knitting of ai 'different character, mechanism" for producing color stripes around; the web,

` pendently 'movil nismfor actuatin stantially--a de 2o ..n arr owi ng and Widening devices, means f-foi f arresting" the rotary? movement'. of 'the strip- .inginjechaiiisin and throwing the'. same'out 0f 'Opera11i() i Widening.'

ic'esjV areputinto action, sub- @bedj nitting machine, the comfing said needles to "right'line'reciproca@ry'v movements, andv automatic-means -foi-'j (fzaiisingv certain 'of :said Inedles to drop. their stitches and cease fromfknittingrat a prede-j 5.- In' a; circi-ilar. Vknitting mael'iineli .independent needles, cam mechanism -o-f'cog" plain knitting, 1. aj further cef operate withcertain 'needles'of portion-of said series. to 'cai'iset thelo'op 'carried by themf and 'cease-knitting, the .-said"certain needles be i.: controlled other .needles of the-fsa-idf-'centinuon independent needles, camff'ni'e'ch'anism operate Wtli" all of fsaidfneedlesff-to prodlice nism 4 to cp'erate with certain needles eff-fa" continuous' portion' said'` needles 1 t o .='ea iisef them to. dro

knitting, the ag controlledv .being provided with .longer n'ibs ithaiieftlie' 'tlierg--needlesfof said port-ion'- toeglise-them to Vneedle cylindjer, off-indeneedles, a cam mecha# y a needleycyliii'denof independneedles', vcam ''-nrieeh'an'ism for..

needles to, right line .reciprocatory movef ments, and means automatically causing 'cer-'2. tain needles todrop their stitches-andcease knitting-at a predeterminedV point:` t

.to drcp.

1d.- lcer-tain needles to.' 'be'JSO" Y knitting machine', the ion with a needle-cylinder, .ofa- 'f n If. indepei'idently movable needles,v cani mechanism for actuating said needles to'v ingl provided' with long 'j and a "part ..v vith short. 'nib'sftoenga'ge said cam/mechanism, "i

means-'for causingf-tlie needles {with-[the striping mechanism and holding thes'amev longer nibsto drop theirv'stitche's 'and .cease Iy knitting, and 'means for'causin'gjsaid needles with"thelnger nibs'to. again-knit', said --meansincluding a cam constructed to4 con- 8. "Inj af circular Y knitting machine, the

seriesof independentlymovable .:cylind'er 'needles formed into two'sets, cam' mecha n-isnifor' actuating all ofsaid needles to knit,- '80" trol th'e needle'switlithe ,longer nihs `for this independent need1e's, the combination. with purpose o nly, substantially-as -described;1-

combinatin with a.. needle'. Acylinder, of a longer nib's tobeenga'ged b'ylsaid cam inech'- ani'sin, 'and' vi'ne'a i i s.- for engaging 'the longer nibbedineedle's to cause such needles to drop-.1.-

their stitches and. to cease from knittingto form openwork, slihsta'n'tially'as described.- 59,4111 .1 acireular knitting machine, @the Yeombinatic'ni with the -'needle cylinder',- a series *of independently movable needles;

Vformed intotivo separate sets', separate-cam mechanism-i for engaging and operating the needles-.of each set, certain needles of o neset being providedj With longer nibs' v'than the others of s aidset, andlcain mechanism feo? operatingWith said longer nibbed needles 'te1-'ca'ii'se-'thein vto drop-.their stitches.v and cease. 'to knit, certain. needles of 'the other' set .'beingprovided. with 'shorter n-ibs than the .operatin'g withl said shorter nibbed needles 'foti; his set 'to' icausethem to -knit stitches. at

certain-,predetermined intervals.

- l .lOLf In a circular knitting.machine 'independent needles, "tlf1e combination with .the needle cylinder, needles andfneedle -ac tii- -ating"'dwi'ces of mechanism for forming vcclor stripes around 'the' web, mechanism for 'causing certain needles- .to cease: from knitsting, indi-rowing" and -widening devices,

means ..'.forcalling4 .the narrowing and Widen.-v

. ing devices into'V action, and 'means forstep. pingthe-"'otary'i movement of the' striping.

thread .giiides and-throwing the needle -"cylinder," needles'f and .nee die ating. devices;

olor stripes aroundv the'` lveel@inechani'-si'n. 'f

1.1 511. In 'a circul' r"knitt1 ng 'machine-Having.- i' independent needles, the/combination with' 'of mechanism for.: formi-ng ting, narrowing and Widenii'i-'g'devices,-meansg l for putting the narrowing.andwideningde vices int-o and oiitgofaction, andmeans for.

knit,a part of said needles be-

Images