US1235545A - Spring-needle knitting-machine. - Google Patents

Description

G. P. soswomn. SPRING NEEDLE KNITTING MACHINE.

APPLICATION FILED SEPT-20. I915 Patented m4: NEEDLES IDLE IVE 4155 Z 1| 1 I I 1 ll 6320592 Bfiaamo'rth,

. I U HIIIIIHIIH III )IIII III II II IIIIIIII 101.5 Alt 0456 IDLE #56171 5 1mmIifiIHIIIHIIHIIIIHIIIiIIIi- 'IIIIIIIIIIIIII'IIIIIIIIIHIIIIIIIIIIII' I 1a I .I I H I H I n z i w E I II! I II M I ILILLII. l. 5 l I I l I H w II- n a I 1 5 I I ll II I I :0 -I I ll us II 7 II f ll 0 II 7 II A MAL e. P. BOSWORTH. 4 SPRING NEEDLE KNITTING MACHINE- APPLICATION man sEPT.2o '19|5.

Patnted Aug". 7, 1917.

2 SHEETY-SHEET 2.

Ramada/w;

. enqheneblhosiiirortr'ri,for cnn'rnhzn tA Ls, piiomigietenn, Assienee tiiefcogmr 1 iig ueahon filed Se'p'tenilier 2b, 191 s." steam: 513561 Wii thet' I, Gnone P. Boswoii'rir,

at citizen of-Ithe UnitedStetes, i-esi ling at Jentral e ils fihorleilslend, have invented.

5 certain new-, and -nsefiil Improvements in Spring-Needlei KnittingMechines of which the following is a; specification,

The invention relates to. spring needle needle z kn'itting; itheZ yz rn being led 'at a sharp, 'a*ng1e.:- iromypthe thread finger downwardly tothe knitting point, the wehholdersbeingcontrolled in especial manner-to zo permit' -thiseaction to; take place, and, in combii'iatit'in withtheZ-needles to exert such control on"lthesfeedingfstrand of yarn that interloeking'ofzthisiportion of the yarn un-' der the-Puppet?nibswof-the yweb' holders will the inach ineliniihakingheels and toes; Fun

ther'in my new: -organizati0n pressing of theneedle he rdsatekes place at a point above the-ii o"er-surfaces of the web holders,

pear hereinafterh V e v Thej' inv'ention isrepresented in the accompenyingjgclrewings in .rwhich: Figured is zedidgrainiof {holders endwerng-feecl, theneeclle wave being that assumed (lu'iing reciproceting knitting. v

rts' thrring the Stroke of the tions er; the-1- e 'leftwefrd in'the direction of the interior fi p miwiew rlche resser's.

e IYSPIIQZING-NEEDLE mmimmdfim.

' Specification a: Lettcr sletent. a Pat t caught to hold the fabric down 'as the neein connection with the diziig nibs of the said wehholdersf'appeer "f'iill'il f r they assume to allow the stit h Other features of the invention will apholdingthe fabric down. the needles, web in 'axis of the knitting hee d iinil" i-i'ebt s'libstan' -poi-n,t-S ,the =:web holriere; ren ein l n eglye tial-lyv ordinary form as; in"Figs 9;"

l0 and '11 having their .ste'm's reduced 'or thinned ettheir. upper ends and quitethin .4 above their. eyes which "receivethepointe of the"beard's when pies'seglj v The web holders 1-12, F g vH1 g -E f lsubstantially :ordinary rem; havingJupper and lower nibs 13, 14Lwitlr'e throat between vthem 111 which the edgbftheffahrie is (lies advance a-fterdmwilng the stitch; The 7 web holders are controlled or'ofierateiiin a? special manner in my' "present-invention; Y which will be clear from. "inepectionof thecain arrangement shown in IF sfmken 6* end Figs. 9, 10 and 11. 1'

, Referring to the d a mgn'siiitbse ewiiiff bQJlOtlCQd that at some poi ts {inthe' -cj'irclefffl of web holders their upper dotted lines between thep ointe 13 and at other points in the needle circle "theiipper lines as at 13*. -The clotfted ines., indice that these web holders stand their'interP mediate position ete point betweenftlieifi' advanced on fabric I holding'f position lehtl' 1 their retracted or outermost p'oeitifo n which we rm downinto the fabric. Thefii cate that the web. holders-"tire eclvanced 1nwarclly to their {1111' limit. for engaging and- In their int'ei'medite position the web 116161 'ers lie with the forward ends or theiru nilos in the same vertical; plane wit i} outer surfaces ofthe steins of'fthef needles, as: shown in Figs. IOQfi'llffe Y dotted lines 13*, Figs. 1; to 6? tion ofthe.wehholdersjis ideri Q 7 cam a, the heele lfi pftl e. web ,h'olde in the earn groove which from p v. v. To EmtHiLL" BA-WTQCKET RHQDEyBLAND, AIQQR? narrower BH EJ L Q hem v mbs' appear iii-3 I At'17 in Fig. 8 are shown the needle beard or inward positions to hold the fabric down.

pressers-these being Inounted 'adjustably' in theear'n ring, adjustment being efieeted by ,the screws 18 and spri'ng19. T-h'e knitting pointswhere the stitches are drawn-down into the fabric are indicated at c. I

Referring to Fig; '1' the yarn is fed-5dir'e ctly to the needles, without, the f interposition of 'measuringsinker's by a yarn finger *20 This is locatedhigh up in relation to the knitting planejindicated by the dash line andjthe yarn runs to theknitting point '0 along a straight path and at. a sharp inclination aslin latch'needle practices-The needle beards are 'pressed fat-the pointflor level d while/thebeards are well above the upper ni-bs of the web holders; In...the stitch formingaactions the-yarn "will be fed as above stated along astraight l'ine'from the yarnjfeed finger to thef abric.

at the point where the. laststitchhas; been drawn into the fabric and in moving along. Y this course the yarn will pass across the front "edge of the upper nib ojf the' web holder,- as

' shown in Figs..9 and- 10" and as ihdicatedin Figs 1, where the yarn is shown crossing"- the dotted line representation-of the end 7: edgefof the upper nib'of the web holder.- .30

The yarn is permitted to take this. straight course in passing totheineedles and-without resting on' the tops vof the web holders be cause of the space existing within the hook Ofj-the'needIe-dueto the fact, that the needle, stem on its front or outer edge is taperedilpwardly and inwardly" or away fromthe beard itself so thatflas-the needle draws down space at; uis opened up betweenjthe front edge of the upper nib T-Qf the"webl holder' and the'taperedvilpper end ofthe stem Within thehook, for the yarnto occupy,'a ndthis represented by Figs. "9- and 10 inwhiphthe needle y has drawn 'down,- I after being pressed, part wa g to draw the stitch into the fabric. From what has just been ,s'a1d,'1t will be observed that the yarn is i'edto" the needles the ,rieedle -whichhas just per-formed this along a straight inclined path from the yarnfinger to the fabric after the manneri of latch needle practice and in this feeding ac-- tion of the yarn the web. holders lie in the r intermediate positions, as shown said Figs. 9, 10 and '11, so as not to interferewfith the vdirect straight course feed ng ofsald yarn. V v

Afterthe stitch isfdrawn into the-fabr c stitch .drawing jaction is advanced again-to its normal 'plane lafs shown-by the needles" from the stitch point. ate the :,po1 nt, e111- Fig l and as above stated,1as the needles rise the web holders areiadvanced inwardlyfto hold the fabric against the upthrnst, a's 1n-' dicated at 13 7 Because of his advance of the web holders it is necessary to" pi-ovideja waybywhich the yarn extending, from the-feed finger to the fabric will be prevented y from being caught under'the upperlni'b' of. the web holder, whenthemachine reverses its stroke from the position of Fig. 4:, asthis locking-of; the yarn under the nibs would linterfere 'with proper feeding, and the yarn isj-li'able to be rupturedi; I accomplishfthe' desired result by controlling the web holders as above; stated and by Utilizing the first needle [of the idle set; or'those which'haire been'gelevatedto inoperatiye position in. making Yheels and.

toes, to: lift the feeding strand. of: yarn up onto the lipper nib 'of the web holdefi adjacentthe knitting point er other words the point where-the needle entersfthei fabric. This action is" represented in' Fig 2,: which represents that'j'the litist-needle pf of the ac tive' needles has drI'wv n; it's- 100p"; into the fabric at a .and-j-thatsthe natty-following ne'e'dl' istheffirst oneofjthe idIeS 'iQSfWh-ieh am-y hem fog-the i needle} ss-a 1 wer-pmitq ;its% mar ct saga yarnandhaee on lin dzpe i l (if-.the jjiy arnlirelat ively t'o-the-onward..mov1ng thickstem;

reference-to; 1.

Vere-6&1: planes-i n fiwhibh the thiek' stefii of. needle 2 is tra.

strikes the; inclilii id yarngitglift's' it iento I the up er. nib as l shefi holds t engwh l elst' b eo t needle, circle in: the; arrow direction 1 to; e is being completed arid aftelj jhe stroke a in the" other directionftakesf place.

Fig, represents" the continiiation' "of the stroke leftward after the actienfgfJ-Eig. 2 takes place; it being "observed; that -v a1l'.'1,he activeneedleshave completedstheirf stitch drawing action and the last ffew needles-of this factiire series-fare partly" r isIedto-"their normal plane. and Fig; 4] represents thfefposi'tien' of; the needles and yarn'w' when." the stroke} to the left has beenpcomp'leted, {the knitting. point, 0- -'where I the --yarn T'enterj ti fabric having progressed lettward 50m that ShOWH F g tha 'S QW Q g 4. andv althoughthe web holders adjacent the .kiiittinf; point have advanced =in"Fi'g's .-3 and 4.-..t' i. h "fu in '1imit:fo.r*? o d glthe fabric down, the yarn" isfl'still maintained-on the one .w b -holderabove thethroat organise them sothat it will not lie-caught in-saie throat. j Fig; 4 also represents that all'of the w ee we ngeffeet -thei'ebi1' as active needles have been raised to normal plan.

It will be understood that pushing of the yarn'outwardly and upwardlyby the thick stem of the idle needle begins shortly after needle passes the yarn feed finger and it will contact with the yarn a considerable distance in advance of the point where the yarn enters the fabric.

It will also be'observed that the yarn is lifted onto the web holder while it is in its intermediate position or while it is standing as shown in Figs-9 and 11,with the point of its upper nib in the same vertical plane with the outer faceor edge of the thick part of theneedle stein,

Immediately after receiving the yarn on its upper nib this web holder is advanced to its full inward limitas shown by the full lines in Fig. 3 so that the yarn is held up with certainty and always by the same web holder and there is noliability for the yarn to get caught under-this or any other web holders when the direction of rotation of the machine is reversed.

Fig. 5 shows the relationof the parts on the stroke in .the other direction 2'. e. to the right at the time thatthe end of thecoluinn of idleneedles is just about passing the yarn iingerand with the yarn 4) extending vertirally from the yarn finger to the fabric.,

The needle 0 (which was the end or trailing activeneedle on the stroke to the left as in Figs, 1 to i) .15 being picked up for nar:

rowing and addedto the column of idle needles so that when the position of Fig. 6

is reached, the yarn has been wrapped around this needle and it is lying on top'of the web holder 13 because this web holder as above stated when in its intermediate positionhas its nose end in line with the outer faceeor' the needle stem. This supports the yarn up and. would not allow it to be drawn into the fabricby the needle '0 it means were not provided whereby this web holder will free the yarn. Therefore. provision is made to permit this web holder to yield or retract outwardly and allow the yarn to be drawn down into the fabric by'said needle (P. -F or thispurpose I make. the small V- shaped'notch bin the web holder cam as shown inFig. 8. so that the web holder when it comes oppositethis V-shaped space can retract,immediately .after which the web "holder, advanced nwardly so as to pen 1 ()1'1ll--,l tS regularjunction t-holding the fabricdown as the needles lrise to". normal;

is inward Quadsance.more nent hol lenbe ng duetothecam surface.

a of the web holder cam is concentric from on I notch, 5 to. the: other and this s ance of the web holder cam holds thewebil' ld: ers-zin their intermediate, position ;so.tn@ S-.-I

above described the ends of their noses are in line with the outer face of the needle;v v

stems.

It will be present spring needle machine so -far as the yarn resting on one ofthe end web holders of the active needles is concerned is substan-- tially the same as in latch needle practice 2. e. to keep'the yarn from becoming inter-i locked under the web holders.

seen from above that the 0 i Referring to Figs. 1 and 6 and comparing these it Wlll be seen that 1n.F1g. 6 the yarn The retraction of tlie'web holders hem its 6 1 intermediate position to -its full inward position at theV-shaped notchbQis duelto the needle drawing the yarn down acrossthe nose or'upper nib of -tl1e .webl1older, thel a web holder being free to .yield under the.

pressure of the yarn in passing down into the fabric. In order to enable the yarn finger to be located high up in relation to theknitting,

plane and also permit the needles to take the of the needle beards to be. performed while yarn with certainty and to enable pressing f 10o .the beards are'above the tops OfthQWYtbQ" holders I maintain the needlesintheir noruntil after they have passed the yarn feed; finger. To do this I employ the divided" form of upper scribed in my application K042570225 filed June 29, 1915, consisting of the members 21*, :21 on arms 22pivotally mounted at 23'" to the inclined sides of the pick block and" pressed normally downward by springs 24: and'raised alternately by th ebutts ot'the needles striking them on the reciprocations' of the needle circle.

narrowing picks 25 combined therewith, In Fig.7 the divided guardcam 21 21 is shown in the position assumed-by it on the stroke to the left,"the righthand section-21* having been raised and now riding on the "needle butts which after passing this section are directed downward by the inclined guard cam s'ectionlQ-ltO the stitch cam" 26 from which it will be; understood as shown-"i11 ,Figflithattlieneedles do not'begin'tdre tract until after they have passed the "center "linefof this caniset and are theretore-beyond [the yarn teed finger. This maintains their beards in the normal high plane a and above-- the yarn finger and the yarn before they F begin to retract and thusthe-yirrn finger scan mal or elevated plane as; shown 'in'fFig l These members haye I iii be located at a high point in relation to the knitting plane and the yarn can be inclined downwardly at a sharp angle and be led direct to the needle which is drawing its 'chines, the yarn rises onto the tops of the 4'5" needles, means for feeding the yarn directly to the needles without sinking it between.

web holders when the stroke in either direction is completed but this action is uncertain, the yarn sometimes coming up over the web holder at the first idle needle or at the second or sometimes at the third needle. l/Vith my present u invention however, the

web holders areso controlled or positioned that the yarn will be pushed up onto the web 'holder predetermined upon and no other, this being the end web holder of the active series of needles and possibility of the yarn interlocking under any of the web holders will be prevented.

' It will be observed that theyarn in feed ing is not laid onto the upper nib or nose the web holders until the stroke of the machine has been completed and reversal of the machine is about to take plac e, the action in this respect being like latch needle practice but different from latch needle practice in that the yarn is liftedfby the idle needle onto the web holder andontothe same one each time,-said web holder being held in a position intermediate of the full advanced and full retracted positions to allow this to be done.

lVhat I claim is: a a n 13in a spring beard needle knitting machine, the combination of spring beard themi web holders, means for bringing said web Holders into position at the knitting point, with the ends of their upper nibs in the plane of the outer face of the lower thick'portions of the needle stems, the feeding yarn being permitted to cross the ends of said upper nibs by the presence of the relatively thin portions of the needles back.

of their beards, said web holders being advanced by said operating means to engage and hold the fabric down as theineedles rise,

substantially as described. it

. 2. In a spring beard needlestocking knitting machine, the combination of spring beard needles, web holders, a yarnfeed fin ger delivering the yarn directly to the needles without sinking it between them, said web holders at the yarn feeding point.

as described.

5. In a spring needle stocking knitting ma- 1'30 messes --low the feeding yarn to extend across said ends by the presence of the relatively thin portions of the needle back of the beards, said web holders maintaining their intermediate positions and the leading idle needle serving to lift 'the yarn onto the top of the upper nib of the adjzicent web holder and hold it in said position while the direction of stroke is being reversed.

3. In a spring beard needle stocking knitting machine, the combination of spring beard needles, web holders, a yarn feed linger delivering the. yarn directly to the needles without sinking it between" them, Said web holders at the yarn feeding point being located'in a position intermediate of their advanced and retracted positions and with the ends of tl'ie iiziippei' nibs substan-- tially in the plane of the outer edges of the thick lower parts 'ofthe needle stems to allow tlie feeding yarn to extend across said end'ls'byl'the presence of the'i'elatively thin of the Web holder but on the contrary, passes as in latch needle practice straight to the-needles from the yarn finger and it I, does not assume a position on top of or borejj portions of the needle back of the beards, said web holders maintaining their intermediate positions and the leading idle 5 for advancing the web holders to hold down g the fabric after the feeding yarn has been lifted onto the saidupper nib. I

4. In a spring needle stocking knitting 'machine, the combination of spring beard needles, web holders; means for feeding the yarn directly to thefineedles without sinking it between them, said web holders-when at the knitting point beingin an intermediate position with the end of their upper nibs substantially in the plane of the. outer edge of the thick lower portion of the needle stems and allowing the yarn to feed across the ends of said nibsthrouglrthe space afforded by the thin portions of the needles .back of their beards, when the needles are retracting, the leading needle of the idle set serving to lift the yarn onto the top of said upper nibs before the reverse stroke'of the machine takes place, pick means for elevat- 1 .ing theend needle of the active set to inoperative position and about which needle the yarn wraps fthe machine-1s on said reverse stroke andinieans for effecting the retraction of the web holder trailing said picked needle to withdraw its upper nib from the wrapped yarn and allow the same to be drawn intothe fabric by the leading one of the remaining acti e needles, substantially chine the combination 6f? spring beard needles}. web holders, means fonfeeding the yarn dlrectly to the needles without sinking fit between'thein, saidf'web holders when at .-position withfthe ends of-their uppernibs.

the. knitting point beingin fan' intermediate substantially i'n'the plane-of the outer edge of'the' thick lowerportions ,of the needle sten 1s andallmvin 'theyarnto feed across the ends of said mbs'jthrough the: space af f-ordedby the ,thin' portions of the needles back of their :beards, when-the-needles are'ieposition and about which needle the wraps as the machine is on said reverse stroke, and means for effecting the retrac-V' tion of the web holder trailing said picked needle. to withdraw-its upper nib from the "-wrapped' yarn," and. allow the same to be drawn into the fabricby the leading one ofth r maining active needles, said means consisting of a; notch or space in the-web holder cam to allow said 'web holder to'retract unf yarn 'sald der the pressnre of I the yarn, substantially as described. 7 v- 6. In a spring beard needleknitting ma-' chine, the combination of spring beard .nee-.

dle's, means-for feeding-the yarn directly to the needles without sinkingit between them, web holders, means for bringing said 'web holders intoposition at the knitting point,

with the ends of-. their upper nibsin the. -;plane--of theouter 'face ofthe lower thick portions of the needle stems, the feeding upper nibs by the presenceof the relatively thin portions ofthe'needles back of beards while at a point above the tops-of the web holders, .said web holders being vadvanced by aid. operating means-to engage and hold the fabric down-as'the needles rise, substantially as described. Y i

- In testimony whereof, I

GEORGE P, BoswoR -TH.

Witnesses:

' Jan/nae L. JENKS, JOHN LAwsou.

being .p'ermittedto crosssaid ends of.

their beards,'means for pressing the needle I fi n d ture mpresence of two w tnesses.

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