US1641554A - Ribbed-fabric-hosiery-knitting machine - Google Patents

Ribbed-fabric-hosiery-knitting machine Download PDF

Info

Publication number
US1641554A
US1641554A US559506A US55950622A US1641554A US 1641554 A US1641554 A US 1641554A US 559506 A US559506 A US 559506A US 55950622 A US55950622 A US 55950622A US 1641554 A US1641554 A US 1641554A
Authority
US
United States
Prior art keywords
needles
cam
dial
fabric
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US559506A
Inventor
Robert W Scott
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scott and Williams Inc
Original Assignee
Scott and Williams Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scott and Williams Inc filed Critical Scott and Williams Inc
Priority to US559506A priority Critical patent/US1641554A/en
Application granted granted Critical
Publication of US1641554A publication Critical patent/US1641554A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/18Dials
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/06Sinkers
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32Cam systems or assemblies for operating knitting instruments
    • D04B15/34Cam systems or assemblies for operating knitting instruments for dials
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/94Driving-gear not otherwise provided for
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B35/00Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B9/00Circular knitting machines with independently-movable needles
    • D04B9/06Circular knitting machines with independently-movable needles with needle cylinder and dial for ribbed goods

Description

R. W. SCOTT RIBBED FABRIC HOSIERY KNITTING MACHINE sept( 6,1927. 1,641,554
Filed May 9. 1922 9 Sheets-Sheet l El la@ 1,641,554 SGP 6; 1927- R. w. scoTT RIBBED FABRIC HOSIERY KNITTING MACHINE Filed May 9, 1922 9 sheets-sheet 2 z l d El y u- 136 l "2; "j N e t. 1 S p 6 927 R. w. sco'r'r RIBBED FABRIC HOSIERY KNITTING MACHINE Filed May 9. 1922 9 sheets-sheet 5 Sept. 6,1927. 1,641,554
R. W. SCOTT RIBBED FAB'RIC HOSIERY KNITTING MACHINE Filed May 9 1922 9 sheets-sheet 4 HHH I Boz/627%);
Sept. 6 1927.
y -R. w. sco'r'r RIBBED FABRI HOSIERY KNITTING MACHINE Filed May 9, 1922 9 Sheets-Sheet 5 Sept. 6, 1927.
R. W.v SCOTT RIBBED FABRIC HosIRY KNITTING MACHINE Filed May 9, 1922 `9 Sheets-Skaai'.l 6
mii]
SF' 17 A 5327.59 5
R.W. SCOTT RIBBED FABRIC HOSIERY KNITTING MACHINE sept.. e, 1927. 1,641,554
Filed May 9, 1922 9 sheets-sheet' 'I has 10 aff/Miou Patented Sept. 6, -1927.
UNITED 'STATES y 1,641,554,` PATENT oFF-lcs.v
ROBERT W. SCOTT, OF BABYLON, NEW YORK, ASSIGNOR TO SCOTT AN WILLIAMS, mC., OF NEW YORK, N. Y., A CORPORATION 0F MASSACHUSETTS.
R'IBBED-FABRIC-HOSIERY-KNTTIN'G MACHINE.
Application filed May 9, 19222 Serial No. 559,506.
This invention relates to ,knitting machines adapted to knit ribbed fabric or lain fabric, or articles of hosiery containing both ribbed-fabric and plain-fabric arts side by side, or end to end, or both; as, or example, to knit by continuous circulatory or oscillatory operations a seamless stocking having a ribbed leg with a welt, andJ portions, for example the instep and sole, of conjoined ribbed and plain fabric.
One object of the invention is to provide a machine having all of the customary plainfabric stocking-knitting appliances, such as usually employed in knitting the leg, heel,
foot and toe portions of a stocking, with devices also capable ofknitting a segment of the tube, or all of the tube, of ribbed fabric, vand adapted, by the automatic operation ofthe machine, to knit an article of hosiery having portions all of plain fabric, or partly of rib and partly of plain fabric or all of plain fabric; or successively of each of these fabrics; and capable of making loose courses and tubular welts at places in the fabric, and `of knitting separately by a continuous operation a succession of articles containing as features portions of the respective fabrics, or Aany of them, each article being complete, in the case of stockings, except for the closure of the toe-seam, and certain optional treatments of the welt.
Other objects of the invention are to provide for the improved manufacture` of ribbed-leg and ribbed-instepstockings, to'
rovide means for' the/improved passage from lain to ribbed fabric, for the improve frmation of Atubulaiwwelts at'the end of a stocking knit from toe to top, and
to produce improved 'partly-ribbed and partly-plain articles of hosiery without resorting to transfer of loops from one needle to another. Still further objects of the invention are to provide improved means for vselvaging and for ktuclring, to provide iinric formed by the machine and in ,respect ments e of ny ycast-off functions, replacing the fabric taken l .accompanying drawin in whichproved means for maintaining upon 'the fabgs ferredV kinds ofcylinder needles;
A general object of the invention is to combine devices for automatic coordination for the above purposes, and within the severe conditions set by limitations of space and necessity' for non-interference between `the several agencies of a machine of the automatic circular stocking-knittin type, so that the new devices shall still e capable of correct, reliable and automatic performance ofA all of the old as well as of the new functions reachingv the objects above mentioned, and thus be adapted to turn out products of uniform excellence with a minimum of attention by the operator.
The invention utilizes some of the instruprior application Serial No. 461,195, ,le' April 14, 1921, for rib-knitting by the operation of complementary pair of series of knitting instruments; provides means for actuating these .parts in a differ- 'l5 ent way for the present purposes, and rovides a web-holder I nechanismadapte tov cooperate differently with respective se ments of the needles and .fabric being Inae for the purpose of-aiding the and up usual inv rib-knittin machines, and` adapted for the purpose o? knitting in sepa-l rate succession partly 'rihbedl and' partly plain hosiery according to theu present disclosure. Y( Y y I i tion common to my said application and this disclosure; y
These devices "are combined with means adapted to the new devices for automatically adjusting the machneto accommodate its new and old agencies. tothe s'uccessivedifferent l duced. Y.
The invention will non1 be e.\ lained-in'- connection ,with ay specific enibo( imeut arranved to ribbed-instep Vand ribbed-leg stoc ngs from toeito top and shown inthef Fig'l .is a right side elevation of the machine, parts being in section;
Fig; 2 is an elevation partly iii section on the line 2 -2 of Fig. 1,``on an enlarged scale;
Fig. 3 1s an elevation on an enlaro'ed scale l showin two-part. dial needles preerredvto be use' in the dialp- Figs. 3s andffare'sections andW-b of l3; y
Fig. 4 is lan elevation showing the pre- I do not herein claim the invent;
parts'of its product, VAas these areproi operating connections for these parts;
Fig. 5. is development of the cylinder cams showing paths taken by certain of the needles; l
Fig. 6 is a plan in section through the dial cams showing the preferred relation of the dial cams tothe cylinder cams by comparisonwithFig.5; f
Fi 7 is a detail plan partly in section on the hne 7--7 of Fig. 2 showing the dial cap and operating connections, the latch ring, the yarn feeding fingers and the yarn severing and clamping means;
Fig. 8 is an enlarged exterior development of a part of the dial verge, the fabric tensioning fins or ribs on the dial, the-c linder and dial'needles, and the web hol ers;
Fig. 9 4and Fig. 10 are respectively en,- largedv elevations of plain web holders and of tensioning web holders;
Fig. 11 is an enlarged detail section illustrating a preferred construction at the verge of the dial;
l' Fig.l 12 is a plan above the bed plate and cylinder cams, showing the needle pickers, the switch and dividing cams, the auxiliary needle raising and depressing cams, and the NF ig. 13 is an enlarged elevation partly in l section on line 13--13 of Fig. 12, showing vmeans forl operating vthe bottom center cam; Fig.' 14 is a rear side elevation; Fig. 15 a plan; andy Fig. 16 an under plan of the web-holder cam cap;
Figs.'17, 18 and 19 are respectively' sections on the lines 17-17, 18-18 and 19`19 ofFig.1'5; W Fi 20 1s a detail right side elevation on a re uced scale of the vconnections for raising and lowering the dial and for working one of the web holder cams;
Fig. 21 is a comparative diagram illustrating the relations to each other o f parts of the means for raising and lowering-the 'dial and parts of themechanism for operatingthe dial cams;
ig. 22 is a diagram plan showing'therelations of the different kinds of operating butts of the knitting and fabric-tensionmg instruments;
Fig. 23 is a diagram elevation of al portion of the instruments of the machine and of the fabric illustrating the relations of the different instruments to the fabric;
Fig 24 is a diagram elevation of a stock-- ingrillustrating one typical product;
ig. 25 is a detail showing the stocking the machine, 'before looping;
Fig. 26 is an enlarged longltudinal section through the top of the leg and the welt oPf the stocking shown in Fig. 24'; and Y Fig. 27 is an enlarged outside or face view diagram of the fabric at the junctures of plain and ribbed knitting, for instance 'at the areas 27a and 27b `of Fig. 24.
of Fig.2in
reference to one product capable of manufacture on it. Stockings for winteror sporting wear, or forcliildren, are in ost satisfactory when made of ribbed fabric, which combines elastic properties insuring comfort and a good fit with an excellent appearance.
Referring now to F igs. 24 to 27 these illustrate a preferred product and certain steps in the art or method of producing it, not herein claimed, for explanation of the -results and advantages of this machine. As shown, the stocking Z, Fig. 24, comprisesa seamless foot having the usual plain fabric toe a plain fabric rino t next to the toe' 2D 7 a plain fabric sole S and ribbed instep p,
`(which may have any desired number of wales proportionally to the total numberof wales anywhere in the product); the usual heel h, and. a short section of plain fabric h above the heel.
llhe leg L is of rib knitting, preferably of uniform pattern such as 2-and-1 or 4-and-1, and at the junctures r1 and r2 between ribbed tive appearance, is secured by a structure presently explained. The leg is preferably fashioned at the-calf by predetermined vavriation inY the length of stitch, and the upper end of the stocking is provided with a andplain a `sharp line of demarcation free .from holes, of strong fabric and of attracwelt W of plain fabric of desired length,
ending in a section W of ribbed fabric, Fig. 26,.which may, if desired, be sewed t0 insure durability on the line lLoL-fw?, lv2-w8, or both.
In some cases, where a turned welt of ribbed fabric only is desired., the plainfabric welt WV made by the automatic operation of the machine may he very'short to serve only as a guide for use in applying the inturned upper end of the leg L, at the predetermined length fixed by the machineplaced welt, to the pins of'a looper. inj order to sew down a portion of the inturiied upper. end of the ribbed leg to forni the welt. When this is done, the machine-made welt W may be' raveled away or cut off after sewing. Whichever way of finishing the fabric is resortedto, the machinev automatically predetermines the length the stitchlength, the kind of yarn, and all other. features of the structure made Referring now to Fig. 25, in the preferred operation the ystocking is begun by first forming a selvage s on the bare needles. for instance by the method explained -in iny re issued Patent No. 13,7 52, June 16,1914, and
by then making loopers 'rounds 7' of plain l fabric before beginning the toc. I The ribbed fabricbeginning respectively at the structures r1 and r2` includes added wales w1, w'ms etc. Fig. 27, whichv may be produced by causing dial needles a b to enter the spaces between any desired recurrent pairs of cylinder, needles n. To make the structures r1 and r2 this entrance is 1n respect t'o and to take loops z in courses 15, T", into which the loops of tucked (accumulated-loop) partial courses r3, 1'* are del tained to 'be cast off with the knit loops -r' of the courses T5, r9. The tucked loops are independent in number, in the parts-of the course containing them, of the number of rib wales acl etc., but preferably are in such number as to occur always in one or the other of the wales flanking that containing anl initialdial' loop z. The leg of a loop r1 thus always extendsl across the eyelet-bole which would otherwise be formed.
For forming the selvage s, alternate needles of one ofthe two series,'cylinder and dial, are.arranged to be active and 1nactive, the remainder being ever-active. The
Atuck stitches in the demarking structures r1 and r2 are formed on these occasionally active needles. v fThe machine generally.-Referrmg to Figs. 1, .2 and v5, the machine frame parts -BV etc., the drive-shaft 32, and gearedl connections 3,0, 31 and'g, g5, 33. gf, g3, gs, g2, gh respectively for driving Ain unlsoxr the cylinder 260, the dial-spindle d and dial D concentric with the cylinder and rotatable in a bearing d8 of bracket A on thelatch-guard ring 550, may all be substantially like the prior machines. The lring 550, dla-l D, and their' attachments are pivoted at 552, and
may be lifted away vfrom relation to the other parte, all, for example, as shown in my prior Patent No. 1,282,958, dated October 20, 1918. i
Themeans for operating the shaft 32, lthe pattern-drum. 120and its driving connections 121, 122, 123; the cam-shaft 8O and 'its attachments, the primary pattern chain Y C, Fig. 1, and the thrust-bars 460 serving as voperatingconnections to parts controlledl by drum 120 may be substantially those of the priorl art.
4The needles of the cylinder 260 may be divided into a longer-butt segment (which may include certain medium-butt needles presently mentioned)- for the instep, and a The cylinder needles may be any desired tvpe of needles. shown as latch needles n, Fig. 4. having long butts nl, short butts n3, and medium butts n3. Recurrent needles among these. shown as alternate needles, are ever-active needles, and are provided -with jacks380 actuated by a cam 366, adapted to lift them out of a depression 40, beneath the, normal level 41, at which their latches are not cleared of the previous loop, to a level high enough to reach an advancing cam to cause them to clear their latches. The upper surfaces of the respectivestitch-cams 360, 36,1, lift and clear the latches of all needles reaching'them.
The drum 120 is moved intermittently, at times by steps corresponding to successive passages by certain points of the cam-ring of the long-butt or the. short-butt segments of needles, as in my prior patented machines, and at these points respectively operating 'cams 4, K25 are movable (by appropriate connections, presently mentioned, to cams on said drum) toward and from .the needlecylinder in stages, to permit their partial insertion during passage of the short-butts, to first operate the leading long-butt needles,
and to permit Vcom lete insertion before pasa sage of the shortutts. Their Withdrawal is in similar stages. to last loperate the following end of the long butt segment. The dividing cam 4,' Fig. 5, is .operated in conjunction with a movable bottom center cam 9 for the purpose of determining whether the'neeflles without jacks shall pass' above cam 360 and be active, or shall idly pass beneath the' leading and following stitch cams; or shall pass under the leading cam 361 and be elevated by cam 9 to take yarn at times land for pur oses again referred to below. Needles wit jacks 380v are everactive and always pass the cams 360, 361 in operative relation, except those with the long and medium butt-s, which pass above the switch cam 415 and top center cam 357 during reciprocatory knitting, 'as usual.
Other needle Lcams presently mentioned are operated from the continually but intermittently advanced primary chain C, which initiates motion of shaft 8O and drum 120. The times of all operations are thus related to motions of chain C; of drum 120;l of shaft 80, or their attachments, asv induced by the primary pattern chain C.`
The needle cylinder is vertically' movable in respect to the dial D, the latch-ring 550 los and cam-ring 271 for the purposeof alterl ing the relation of 'thecylinder and dial, and also for Valteringthe vrelation of the limits of the vertical stroke of the cylinder needles to the knocking-over line at the verge of the cylinder. This line is determined by ann per surface of. weh-holders, presently mentioned, working between the needles, and bearing on an attachment of the cylinder. The effect of lowering the `cylinder is to lower the web-holders and relatively to raise the top and bottom limits of the motion of the needles lin respect to the web-holders.
Means for automatically raising and lowerving the cylinder preferably comprise a lever pivoted on the frame stud 450, and having larms 281 and 286 respectively contacting with cams on drum 120 and with a lug on a Y tube'280, upon which thevbottom bearing for cylinder 260 rests, all aswell known.
Motion of the needle cylinder vertically is made use of in connection with chan eable positions of the dial, for purposes exp ainedgrooved at d1 to define a narrow circular verge d2 an appropriate short distance concentrically within the space defined by the backs of the cylinder needles n. The bottom surface of the dial slopes upwardly at d* to define the narrow verge d2. There may cylinder needles be Vin the dial as many grooves d3 as there are cylinder needles n, or any divisor o f this number. The relative rotative lpositions of cylinder and dial are such as to bring the dial grooves d3 into the radial planes between the groovesfor the cylinder needles. The under side of the dial is ooved to leave integral partitions or fins d5 in the radial planes .'of the cylinder needles, preferably all the cylinder needles, as shown in Fi. 8. As shown, there are half as many dial needles as there are alternate ever-,active (those provided with jacks), and the rib-pattern is four-and-one. If the intervening empty dial grooves da were provided with needles, the pattern would be two-and-one. The needle-dial, the
needles, their operating cam-cap and yarn'- se'vering andguiding means carried byA the cam-cap' are provided with raising and lowv'eringmeans automatically operating to adjust the position ofthe dial"at.times, as
presently to be mentioned.'
The pattern of rib, whetherthe same all aroundthe stockin or different in different segments, is contro led ,by` the position and relative number ofthe-dial needles, which may be varied within any arrangement permitted by thev number of grooves' in the dial.
As ex laned below, the dialneedles arev arrange to be automatically operated insuch a .way as to be held idle, to make knit-v ting ,n iovements, to retire and hold loops, or tobe rdired empty and remain retired;
these operations are effected so as to involve either atselected series, a segment or segments only of the dial needles, for making ribbed-fabric'and plain-fabric sevments'side by side; or toinvolve all of the dial needles, -an-.l thus' lo make ribbed fabric all around the tubebeingknit; or to make plain fabric all around thecirclc on the cylinder needles only, the dial needles then `being idle and disengaged vfrom the fabric, or to retire Iwhile engaging a loop or bi ht of yarn,
during operation of the cylin er, to make a welt. The dial needles, (Figs. 3 and 22) a and b', or shorter butts a2`and b2, andy ,1
havinflr vhooks facing each other, and arranged and adapted to operate according to my Patent No. 1,385,929, dated July 26, 192 l -The cylinder needles, referring now to Figs. 5 and 6, are the primary needles, bein fedwvith yarn prior to passing the radia plane g3, ya, of said figures, and knitting at the lower apex of cam 361. The dial needles when active secondarily receive yarn fromA the cylinderneedles, and knit at the radial plane g/-y ofsaid figures 'after the cylinder stitch has been lcastoif f The web-holders.-Tlie cylinder is provided with a Web-holder bed 295 and webliolders of two kinds, 'w1 and fw2 Figs.,9 and 10, one web-holder working or lying inl a radial plane between every pair of the needles n (Fig. 8)v and directly under such dial thus lie between the positions of the webholders 'w1 and wz, Figs. 2, 8 and 11.
Some of the web-holders are 4plain web holders such as shownat w1, Fig. 9, havin' upper arms recessed at'fw, below the leve 'wueof the throats under the hooks wmwhich prevent rise of the fabric withl the needles. Otherwise thev web-holders'w1 are of any desired type, but preferably are each provided with an upper'arm zo, a parallel lower arm lw having a straig t bottom' fw", andv have uniformshort and broad operatin butts w8, and a notch fw? for a spring ban w, Fig. 2.
The function of the Web-holders Iw1 is that usual in the art, the fabric beingheld'down by the hooks 'w10 a ainst rising with the needle andthe knocking-over line being e'stablished in res ect to the level lw of a Wehl holder slight y -.w-ithdrawn in respect to the fdowngoing needle. The web-holders w1 are lplaced recurrently among the other webolders '102 as frequently as nece:saryte provide a web-holder w1 bet-Ween each face Wale of the fabric, except between.` those facehold-down hooks w1, the upper surface aan,
and the band notches @0% d are in at )leas needles as maybe placed in the grooves d,
ial is provided pand into certain engagement with its fabricfeeding serrations w13. Q dial at the preferred ositlon for tensioning fabric extendin two series having respectively dierent operating means, for instance, short operating butts rw" and long operating ,butts w18, which series ma)7 correspond to differentiated segments of the ,dial-needles which are to be operated independently. The inward end cf the arm lw is rouhened, ser-r rated'or provided with forwar ly and upwardly projecting points w13, preferably extending above the surface w and arranged in rounding relation about the end of the upper arm w, and adapted on the forward stroke' of the web-holder from an abnormally retracted position, under certain circumstances, to en age the face surface of a back or rib wa e and feed forward the from the region of the surace w11 wit-hin and over the end of the arm lur", and -to release the fabric on the rearward stroke. That is to say, this action takes place when the fabric is properly presented to the tensioning web-holders we. This occurs when the dial is low or the cyll inder is high, so that the partitions or fins d5 on the dial then serve to force the fabric downward over each of the web-holders 'w2 re 2 shows the the fabricby the action of web-holders 'wz. During making of plain fabric, during lweltin'g and during reciprocating knitting y11e-eis ois ' for and toes, the dial may be in a relativelyA highposition, and during such times the tensioning web-holders lwz have normal motions only,`an1f perform the usual functions only in relation to the fabric knit on the adjacent cylinder needles. The web holders lw2 having the longer butts 'wsma be placed in the instep segment of the needle circle t' correspond to the series of dial needles having the longer butts a1, b1, Fig. 22, for the particular uses of the machine shown.
During the formation of fabric ribbed in one segment and plain in 'another segment, the 'tensioning web-holders w2 may-.operate as normalweb-holders in the plain fabric segment, and be. given their tensioning movement in the ribbed-fabric segment, the preferred arrangement for this purpose comarising means for actingdiferently on the different series of these tensioning webholders. When the dial is lowered, and the f web-holders 'w2 have anormal short movement, the serrations fw will engagethe back or dial needle-wales ofthe rib fabric, or the corresponding sinker wales ofplain fabric, and feed it inward and downward as it grows, but without exerting any more marked tension than that customary for the web-holders used with'cylinder needles for plain-fabric knitting. But upon withdrawing abnormally any of the web-holders w* and again advancing them to their normalA inward position, they will exert a full tensioning effect upon the fabric engaged by their serrated ends.
Inward throw of the tensioning web holders L02 ispreferably the function of a single spring-pressed cam adjustable to vary the maximum tension and acting equally upon all of the butts ofthe tensioning web-holders 1.02.
For the purpose of knitting at will plain tubular fabric, fabric ribbed all around, and ribbed-fabric and plain-fabric segments of the same tubular fabric side by side, this invention provides means by which the nor-v on the instep segment, a normal web-holder action on the sole segment, and to provide rib-knitting tension all around the tube during knitting of the ankle and leg. The preferred way of doing this is to control the withdrawing motion of the tensioning webholders .conformably to thenumber and place of the active dial needles at any time.
By confining the fabric tensioning means to instruments associated with the needles, severally and automatically controlled, I am able to formpartly ribbed and artly'plain fabric without any of the disa vantages of y placlng the whole knit web under lengthwise tension; and I am also-able to vary the tension on one part of the web, as compared with another art simultaneously being knit I thus provi e for knit-tingevery part ofy articles produced in separate succession under the best conditions for accurate operation of the knitting instruments proper; strains on the yarn are avoided; and suitable tension is secured for knocking over or completing both the ribbed and the lain fabric stitches during wide variation o the stitchlength for fashioning the stocking'orpother article.
T'he web-holder actuating Meca-Reerring nowto Figs. 1, 2, 9, 10 and 14 to 19 inclusive, the usual grooved web-holder bed ,295 fast on the needle cylinder 260 has a running bearing within a depending flange of the web-holderA cam cap 300, which '1s restrained against rotation with the cylinv.der in each direction by the usual stops 302,
Fig. 1, and is further provided (Figs. 14 to 19) with a relatively shallow concentric groove 301 wideJ enou h to take over -the broad butts 'ws of the p ain web-holdersw, and to permit radial play` of thes web-holders inwardly to a point suiiieient to maintain the hooks 'wm against the yarn of the last course knit.,v The band fw holds the web-holders in this position with suieient The lain we -holders lw at the end of their with rawal by cam 304 are v.positively driven inward by relatively thin adjustably fixed cams 306, 307, mounted in horizontal slots 308, 309 cut through the cam cap, and act-l ing on the butt ends of the web-holders w1.
tCam 307 is active in the direction of roundand-round knitting, and inserts the webholders moved by it immediately after the recession of the cylinder needles to their lowest point at cam 361, Fig. 5, for the usual web-holder function.
The tensioning web-holders lw2 are independently controlled. Having butts lw1",
w1 respectivel. higher and narrower than the butts 'wf o the web-'holders .101, the cap 300 may be provided with any desired sys-.
' tem of -grooves and cams. at a higher level y than the cams for the butts 'w8 for diii'erently directing the butts lw, wiwyvithin the radiallimits of the groove 301"'"iprfits en- 'largsments As shown, the cap is`provided wit a groove 310 deeper and' narrowerthan the groove 301 to accommodate the butts of the tensioning web-holders. This groove has a minimum radius preferably the same as that ofthe groove 301 and thel inward faces lof the web-holder l) same radial distance from their hooks w, so'4 that the inward limit of throw of both kinds of webvholders is the same. But the length of the tensionin web-holders fw from their hooks 101 to t eir outer ends is 'less than that of lthe plain web-holders, and
the tensioning web-holders are thus capable 0f bein withdrawn outwardly without contact wil the Acams for the plain webholders to an abnormal distance, for the purpose of seizingl bylthe points w fabric 1n position tobeso seized. Reinsertion of an abnormally withdrawn web-holder lw2 now tensions the fabric between the points w and the needles. j
I .All of the tensioning web-holders may be such reinserted in commonwhen normally or abnormally withdrawn by a movablecam held inwardly against an adjustable stop by a predetermined s ring pressure. As shown, a cam 312 1s pivoted at 313 in slot 309 at a level above the cam 307 and acted upon by an adjustable spring plunger 315 to hold an adjustable eccentrlc limit stop 314 on utts areall the ymanana.
the 'cam against the wall of the cam-cap. When the function and movement of the web-holders is normal, for plain fabric, the operation of cam 312 is merely to advance these web-holders to their normal inward v extended downwardly to be acted on by plate spring 319, and 'adapted to be withdrawn during round and round Iknitting by a link 134 to the pattern devices, presently mentioned. If not withdrawn, this cam v'would needlessly stress the fabric at web holders fw.
, The tensioning effect of any of the Webl,holders ./w2 bein dependent upon whether ithas been wit idrawn abnormally, before reaehin the cam 312, the inventin includes means or acting on all or some only of lthese web-holders to predetermine abnormal withdrawal of selected members only 0r all of the series of web-holders wz. shown, butts lw, lw1S of two different lengths only are suilicient -for making the stocking of Fig. 24, the longer-butt web-holders bein placed, see Figs. 22 and 23 to correspon to the instep p, and the shorter-butt webholders being placed' in the remainder of the circle; but any different arrangement of these web-holders and further differentiation of their butts may be resorted to for other purposes within the invention. To actuate these web-holders, a pattern-controlled withdrawing cam 325, Figs. 14, 15, 16 and 18, is the preferred instrument. f
Havn regard to thelack of space above the webolder cap 300, the lost motion in a rotary sense of this cap, and the narrow space between the web-holder butts andthe needles, I prefer to construct and .operate the cam 325 as follows: An opening 326 is formed, see-Figs.16 and 18, through the upper surfacel .of the web-holder-cam-cap 300 communicating with the groove 310. In Y this openin the cam 325 is arranged for vertical mot1on into and out of contact with the butts fw and with the butts fw" of the web-holders wz, the lowermost' position of the cam 325 being limited` by the step 305 Vof the upper surface yof vthe cam cap 300 to which it is attached by screws 328, 328. Thlsspring segment 327 is ben-t upwardly from points near the screws 328 to prpvide a Hat portion 329'normally raised above the upper'surface of the cap 300 and having cam 325 -mounted on its under side by the screws 330. The fiat portion 329 ot' the 'spring 327 is provided with an outwardly extending lug 331 of greater angular extent than the usual lost motion movement of t cap 300.
Any suitable means for depressing the cam 325l automatically may herprovided: for instance, referring now toFigS. 1 and20, one of -the thrust bars 460comprising the pattern operated lconnections from the drum 120 is provided with an adjustable actuator 332 having an inward projection resting above the lug 331. Downward movement of the 'thrust bar 46() by its relatively 'heavy spring 333 will depress the spring 32'( and the cam 325,tothe`extent determined by the' operating Vcam (such as 325, Fig. 13) for 2Bthat bar 460 on the drum 120. This cam may, according to the product, have a portion e corresponding `in height to the idle portion, a portion e to the partly depressed' position, and a portion e2 to the. fully' deressed position of cam 325. and corresponding. in angular extent to the length of the plain, the partlyribbedandpartly-plain, and theall-iiround-ribbed parts ofthe' vfabric, respectively. l f
, Whenever the actuator 332 isielevated tothe position shown in Figs.- 1and2`0, tor' in-` j stance, the cam1325 is. Vwithdrawn by the spring 327, and 'all offthe. web-libders are normally actuated. .'Whenever 'thecani 325 isdepreed through a'partfof "rtsuseful freedom of motion, it first contacts with the leading high butt w1'3 ofthe series of webholders vw2 and the'n abnormally withdraws each of the high butt web-holders "wz. When resting against the step 305, at its lowest` position, the cam 325 acts 'upon and l withdraws alll of theweb-holders we. The
\ stages of motion downward of cam 325 are i J end of the shaft 80 an appropriate 'lever timed, 'by the usual devices for moving drum 120, to take place just prior to passage vof the leading long buttv and the leading sho'it butt dial needle. VThe cap 300 may be cut away at 324, Figs. 15and 16, to permit the abnormal outward movement'of the web-holders. n Means for giving related motions to the cylinder and dial and the web holders may be rovided as follows:
eferring now to Figs. 1, 2, 20 and 21.
vertical motignsof thev dial'may be secured r by any convenient automatic connection under control of pattern surfaces of the machine, such as a cani on or", rotating in unison lwith themain cam shaft 80. A
preferred connection for this purpose coniyprises an appropriate cam 80, Fig. 20, attached to the face of the gear 122 on the through and rotate with the gear g1, and is arrangements are such that up and down- 122 worked by this cam,` having a vertical 65 operating connection 125.
The connection 125 `lpasses up behind they d'rum 120 to a link 126 pivoted to the connection 125 and to the latch ring pivot post provided with an arm (Z13 held to a bearing upon the upper end of the dial spindle d by a cap d fastened through a bore in the arm d to the dial spindle d. The arm 13 carries a downwardly extending adjustment also provided with a steadying connection d10 extending through a. hole in bracket A to the dial cap D presently mentioned. These motion ot' the rear end of the lever 128 will move the dial (and the dial cap resting upon its upper face) vertically throughthe desired small distances, in time with the rotary motions of shaft 80 and the gear 122. The vertical motions of the cylinder 260, controlled through the lever 281 and the drum 120;,'are thus coordinated with the means for vertically positioning the dial.
Cain 80*l may have as shown high parts 80, 80e, 80d respectively corresponding to high positions of the dial for the plain-fabric knitting at the selva-ge, loopers rounds, the toe, the toe part of the foot; at the heel; and at the welt. The intervening low parts 80, 80, 80g respectively position the dialin a low position for the partly ribbed and. partly plain tube for the instep and sole; for the partly ribbed and partly plain ankle section, the ankle and leg; and for the ribbed fabric following the welt.
In some cases, as when it is desirable Vto change yarns during the leg to compensate for the increased stitch-length and hi her positions of the needle cylinder cause to fashion the lcalfot the leg, and for other purposes,` the dial may be'liftedl to4 better V ting.A This arrangementl'is Asuch as to eii-v screw d1 lying above the lever 128, and is i aofi,
iis
able the dial to be positioned vas desired by motions of connections 125 through an upper range of its movements; 'and toenable the connection 134 to he pulled upon to withdraw cam 316 when the dial is in its low position for rib knitting.
Dial needle motonsf-For rib knitting, when the dial lneedles are operative as secondary needles, as preferred, to `knit in the radial plane y, Figs. 5 and 6, following, in the rotation of the machine, the radial plane k at which the cylinder needles knit, the dial needles are supplied with yarn by the runs of yarn lying between the hooks of the cylinder needles, and the rib or back wales m1, m2, fr. ctc.: Figs. 23 and 27, knit by the dial needles, are formed of these runs of yarn.
Preferred means for giving the dial needles their motions will be understood by reference to Figs. 2, 6 and 7. The dial cam cap D1, held against rotation by the post d, carries cam rings d defining between them a broad concentric groove dl. Mov- .able knitting cams are interposed in this groove, and certain fixed cam margins ofthis groove cooperate with the interposed cams.
The movable knitting cams may comprise the cam 13, for advancing the hook parts a of the needles, the camy 12 for advancing the point parts b of the needles, and the cam 10,
which operates onboth the hook member a and the point-member b of the dial needles. The dial cams may also include a'xed separator cam 14.
When the respective butts of the part a of the needle and the part b travel concentrically in the broad groove d", the dial needles are in their idle or welting position illustrated in Fig. 2.
-ber a,'and thus will be in position to be en- VIl() tered from without and lifted by the point b1 of the member b. The member b is now retracted for the purpose of taking this loop on the point 61'?. This movement is efeoted by the fixed withdrawing incline 15. The
-hook a1o of the part a of the needle is now exposed to receive yarn, which is accomplished by the descent of the cylinder needles withthe new yarn in their hooks.
This secondary feeding takes place between the yplanes y and. k, Fig. 5, so that the needle` part a upon further recession,
.draws the dial loop subsequently to knocking-over of the cylinderloop, and during .rise of the cylinder needles between and y. The inward motion of the needle part a is completed at the apex of vcam 10 (at holders 'w2 is transmitted from their rela-v tively remote serrated ends, is measured by the spring pressure at cani 312, and is exerted in the wales corresponding to the dial needles.
The recession of the dial needles to the point indicated in Fig. 2, just within the dial verge d2, would not be sufficient to cast off the previous loo if the dial needles were any of the kinds o needles customarily employed. But outward motion of the points b1 aided by the tension on the fabric of the tensioning web-holders wz, now lifts the loops olf the needley parts a, the advance of the point member b releasing the loops and dropping them on to the new loops. This loop-lifting and cast-off movement of the members b is effected by the outthrow surface 11 of cam 10 (Fig. 6).
The dial needle parts a and b are now returned to their idle .position b the cam slopes 10 and 10" respectively ig. 6).
The cams 10, 12 and 13 of the knitting cam group are suitably, and by preference adjustably, mounted together for motion on dial D1 toward and from the needles; for instance on a carrier block 615, Fig. 7, having holes guided on vertical pins 616 and 618 on dial cap D1, `and also having a housing 617 over pin 618 for a spring taking against the top of pin 618. The dial cap is cut through at d .to permit the cams carried by the block 615 to enter into contact with the needle butts, whenever the housin 617 is pushed down by the inner endof a ever 613, pivoted at 612 to a bracket 620 attached, for instance, to the latch ring 550.
The lever 613 is operated by suitable cams such as 120", Fig. 21, on 'drum 120, and the thrust bar 461, the upper end of which takes a ainst a pin 529 ecoentrically mounted for a justment at the outer end of the lever 613 (Figs. 1 and 7).
When block 615 is depressed only so far as to engage itscams with the longer butt series of the needles a b, the dial needles are entered and operated in a corresponding segment only of the fabric.
When further depressed, all of the dial needles are operated. When withdrawn after knitting, all of the dial needles are left vin the position of Fig. 2, and the dial loops are retained for welting or other pur- When, as .explained above, it is desirable to lift the dialJduring rib knitting, for example by the segment h of cam 80, Fig.
21 the inward end of lever 613 Aisprefera ylifted to avoid motion of the dial knitting cams in respect to dial cap D', whichrises with the'dial. This is provided for by providing a step 1205' in cam 120x fop the-bar 4 62 'to a lower level conforming in angular position to the effective posit-ion of the se'gment 8()h on cam 80a.
Y am feed meam.-The machine is providedA with usual yarn-feeding means for a stocking knitting machine, including a series `of pattern-controlled yarn feed guide fingers F adapted to be lowered into operative position as shown at the left of the series in Fig. 7, and raised to inoperative position. One or more of these yarn guides may be arranged to be actuated for splicing or other auxiliary yarn supply, and any of themA may be worked for yarn changing by the usual expedients. Except when splicing, the yarn withdrawn from knitting is thrown above the upper surface of the dial cap D', upon which it is taken vunder the clamp member e and is severed by the vvshears e',
.the clamp and severing means being appropriately operated by the lever 611 and one of the thrust bars 460. In order to prevent the withdrawn yarns from passing above the cam carrier block 615', the preferred `structure includes a spur 615a projecting radially from the block 615.
- The usual brush latch-opener 425 Fig. 5, is preferably employed, and the machine may be driven through automatic speed-changing power connections.
Cylinder-needle operating defvzfleesa-Referring to Figs. 24 to 27 and Fig. 5', the selvage s by which the fabric is'begurronthe `bare needles, the last stocking having been cast off. may be made according to my said reissued lPatent No. 13,752 by feeding an initial varn from one of the yarn-lingers F first to ever-active recurrent cylinder needles only. the remainder being inactive, andthen normally actuating and feeding all of the cylinder needles. For this purpose the dividing cam 4, Fig. '5, is caused to enter in two stages, depressing in turn below the leading stitch cam 360 all of the long and short butt series of needles not provided with jacks 380. Jacks 380 operate. at cam 366 to lift their ever-active needles back to the normal path above cam 360. The depressed needles Withoutjacks travel below the normal (dotted-line) position of lower center cam 9 and rejoin the other needles under cam 361. Cam 4 is then Withdrawn to run off the endl of the long butt series (with which the medium butt needles n2 are included). If the yarn finger F entered its yarn justbeforev thelast long` butt needle passed it, thc cam 4 being in, the yarn will now have been fed to all of the needles with jacks, and will be held inward at the places of the intervening needles by the action 'of the Web-holders.
On the nextcourse', cam 4 being Withdrawn, all of the needles knit, thus forming the selvage s, and subsequent fabric may be made as desired. Cam 4, see Figs. 1 and 5, may be, like similar cams of my prior patents, the inner end ,of a slide, worked by a horizontal lever 24 from a cam 23 on a thrust-bar 461 moved by cams on drum 120 in proper time `with passageby Ait of certain segments of the needles.
I utilize the devices referred to combined with other devices, for the purpose of making the eyelet-hole-closing and ribbed-fabric demarking courses r1 and r2, Figs. 24 and 27, by a tucking operation.
The lower center cam 9 which is commonly fixed, is inthis case pivoted at 7 (Figs. 5, 12 and 13) and is provided with a pin 9a extending through a hole in the cam cylinder 271 to engage the forked inner end of an actuator adjustably fastened by screws 22 to a thrustbar 460. When bar 460 is lowered, cam 9 is positioned, as shown in Fig. 5, across the path of needle butts depressed by cam 4 to pass under cam 360, and these needles, which have not, cleared their previous loops, pass up cam 9.to take yarn, in addition to their `previous loop, from any finger F Which may bein operative position. Although those needles then travel down cam 361, they do not knit, not having cleared. But on the next course, if not again .lepressed by cam 4, the old loop r6 and the bight 1" (Fig. 27) of yarn so received are both cast ofi on the yarn loop normally taken in course 1"". n
Cam 9, when tilted as shown in Fig. 5, functions normally for needles passing over cam 360 and under cam 357 in round and round knitting,iand need be in its normal position only when needles depressed by cam 4 must pass the yarn feed guides Without taking yarn. e. g., for the selvage s, and during heel and toe knitting. A suitable cam 21 on drum 120, Fig. 13, lifts the bar 46() to restore cam 9 to its normal position after the special function is performed. Cam 4 is operated to cause the jackless needles to tuck during so many courses or such parts of courses as it is effective to depress these needles.-y The preferred structure detains the loops r during one subsequent course only. Normal operation of the Cain 4 to produce a single course containing the tuck stitches such las the courses r3, 7'* of Fig. 27 will therefore be occasioned by a motion of drum 120, acting through the thrust bar 461 and the cam 23 to insert the cam 4 to first operate the longer butt needles, to then operate the shorter butt segment of needlesl and to run oli the last needle of the long butt segment on its second passage. In order to confine the combined effect of the cams 4 and 9 toa single course or to a segment only of a single course the cam 25 is arranged for coaction with the needles to advance the leading longer butt needle and those following butt needles, and cam 4 can thereafter be withdrawn out of reach of the short butts at any time after a single whole revolution.
But if it is desired to tuck only on some segment of the needles selected by their butts, for example to tuck on the lonO' butt needles nl only, this can be accomplislied inthe following way:
The inward motion of the cam 4 is confined by a suitable operating cam on the drum to contact with the longer butt segment of needles nl only. The combined effect of the cams 4 and 9 is now onl upon the segment of needles n1, correspon ing to the dial needles having'the longer butts a1 and b1. Motion inward of the cam 4 to this extent may therefore be employed to make the demarking structure r1 at the beginning of the ribbed fabric for the instep of the stocking.
When it is desired to knit the demarking structure r2 on the complemental segment o needles, for instance on the short butt needles n and the intermediate butt needles n3, this is accomplished by the vcombined action of the cams 25 and 4, these cams being positioned together inwardly so that the cam 25 encounters the longer butts and raises them out of the reach of the cam 4, which, during their passage, is positioned all the way in to encounter the medium and shorter butt needles, and cause those among them without the jacks 380 to pass up the cam 9 and take the yarn without having cleared. It will be apparent that the selection of any series of needles having differentiated butts, e. g. of the medium butt needles n3, is easily accomplished by this combination of devices.
In order to coordinate the motions of the cam 25 with the motions of the cam 4 and referring now to Figs. 1 and 12, I prefer to operate the cam 25 from .the primary pattern chain C rather than from the main pattern drum 120. For the specific purpose of making the product illustrated in Figs. 24 and 27, activity of the cam 25 follows shortly after the knitting of heels and toes, and for this and other rea-sons it is convenient to operate the cam 25, the switch cam 415, and
the widening picker 680 (all active at about this general time), from the same con'nec tions, which can have different positions for these respective purposes.
- Referring to Fig. 1, on the stud shaft 200 a rocker 201 having an arm 202 standing over the position of lugs 203 on the left hand side of the mutable-link pattern chain C is provided with forked arm 204 taking under a collar 205 on an actuating thrust rod 206. This rod passes upward through a hole in the bed plate B and is provided with a collar 207 having lingerk 208, Fig. 12, bearing eccentrically on an arm 208a of the short shaft 209 on which the picker 680 is pivoted, and forming part of its universal motion mounting. Upon depression of the shaft 206 the picker 680 is made active in the usual way for the usual stocking knitting purposes. The lower end of the thrust rod 206 is pivoted at 210 (Fig. 1) to a lever 211 pivoted at 124 and having one end in Contact with cams on the drum 120; this part of the described connectionsl may be relied upon to drop the rod 206 to actuate the picker controlling connections 207, 208, 209, at the proper time. This will be permitted by the absence of Yany lug 203 o n the chain C which might retain the rocker 201 in its upward position. The downward motion -of the thrust bar 206 may be induced by cams on drum 120 (not shown) in two stages, for the purpose of operating the switch cam l415 during the first part of its descent and operating the picker 680 during the last part of its descent. As usual the switch cam' 415 f is mounted to rotate with a short shaft 416 having an arm 417 over the upper end of the rod 206. Shaft 416 is provided with a pin 418 in the cam slot 419, for the usual. purposes. When heel and toe knitting is over the lonv butt instep needleswhich have been raised by the cam 415 are returned to their normal position by elevating the rod 206 by the connection 210, 211 and 120.
For the purpose of operating the cam 25 the rocker 201, etc., is now relied upon to move the thrust bar 206 further upward, and this motion is transmitted to the cam 25 as by a connection preferably comprising an arm 420 on the shaft 416, a horizontal rocker lever 421 pivoted at 422, Fig. 12, and taking under a depending pin 423 on an arm 424 pivoted at 42a upon which arm the cam 25 is mounted. A spring 426tends to keep the 251111 424 inwardly against the rocker lever Upward motions of the thrust rod 206 by the rockers201 and the lug 203 are permitted b y the connection 210, 211, which is merely lifted away from its normal actuating cams.
In order toy insure that the needles travel on the ledge 41, for their accurate selection by thecams 4 and 25, or in order to adjust the amount of yarn respectively in the cylinder and in the dial wale of the fabric, or 1n order to depress'the needles to provide a place for the operation of a Stop-motion detector, not shown, I, prefer in some cases to arrange for depression of all of the cylinder needles to a less extent than for knitting after both sets of needles have knit. The preferred means for this purpose is cam 8, Figs. 5 and 12, on arm 18a pivoted at 18",
lill) lll.)
lll)
held inward by a spring 18", and moved out- Operation-In knitting stockings, the operation is from toe to top. Assuming the machine to be running and the needles to be bare of any yarn, the needle dial to be in its lowest position, 'and the yarn fingers F to be elevated, their yarns being held under the clamp c and ready for reinsertion, the operation begins by the motion inward of cam 4 (Fig. 5) first to encounter the long butt needles, and then by a motion during their passage to its inward position to move all of the needles. Cam 9 is in its normal upper position. The dial needles are retracted to their welt position, Fig. 2, the needles with the jacks 380 are taking their normal knitting path, and the needles without jacks are passing below t-he cams 360, 9 and 361. A yarn finger F is now dropped into operative osition before and near the passage of the following end of the long butt needles, and the camfl is moved outwardly to run ofi:` the end of the long butt series at its next passage, whereupon all ofthe needles will take yarn for a second course and subsequent courses. Enough fabric is thus kniton all of the needles to provide the loopers rounds (r, Fig. 25.
A motion of the drum 120 now operates the lever 281 to make a loose course by raising the needle cylinder and web holders during one revolution, and the further motion of the pattern shaftiSO shifts the actuating elements of the machine to reciprocal motion, lowers the cam 415 to switch the long butt and medium butt needles above the stitch cams, and the machine knits the toe pocket t as usual, the narrowing pickers 650 diminishing the series of active needles. A short motion of the drum 120 now puts the widening pickers GSU-pinto action, and a further motion of theHshaftLSO causes the machine to resume rotatiom'the switch cam 415 to be lifted to swichi'down the long and medium butt needlesH-'tnd a change of yarn to be effected if desired. The machine now knits the usual ring of fabric t following the toe for a few'rounds.
The next motion of the pat-tern mechanism drops the lower center cam 9, inserts cam 8. and inserts the cani 4 to position to act. on the long butt needles only, whereupon the demarking structure r1 is made on the long butt segment of cylinder needles, and cam 4 is removed. Dial D now descends to its lower position.
The cam block 615 is moved down to engage` their extreme position, respectively to opthe knitting cams with the longer butt series of-dial needles only. There needles enter into course 15 in Fig. 27 and each of them takes an initial loop a, and t he instep p and sole S is knit with the parts in this adjustment.
During the preceding operations the webholder-withdrawing cam 325 (Figs. 14 to 18) has been in its upper idle position, and all of the web holders have been normally actuated. This cam 325 is now moved downward by its operating connection to abnormally withdraw only tho:e web holders rw2 having the longer butts w18. On the completion of enough partly ribbed and partly plain fabric for the foot, the knittingvmotion is changed to reciprocation, the switch cam 415 is lowered and simultaneously the dial needlesare retired by motion upward of the block 615, with the effect of retaining the dial loops; the web holder cam 825 is lifted out of action, the dial is raised coordinately with the upward motion of the instep segment of cylinder needles at ca m 415, and the heel is then knit as usual in making plain fabric stocking.
At the end of the heel the dial is lowered, the cam 325 is again placed in position to act on the high butts w18 of the web holders wz, and the dial cams arey rendered active by again depressing the bock 615 coincivil) v(lently with resumption of rotary motion of the needle cylinder and dia-l. In this condition the machine is operated to make the section of plain fabric h above the heel and to continue ribbing at the instep segment.
It will be observed that the instep section p of the fabric may be as much less than half of the circumference of the tube knit as desired, the medium butt needles 'n3 occupyinr spaces intervening between thel ends of tlie short butt heel and toe knitting needles and the position of the ribbing needles. This provision enables the foot p. S, to be made narrow. the added rib wales being comparatively few in number, and their tendency to increase the width of the fabric being compensated for by the relatively larger segment of plain fabric knit on the short butt and medium butt needles, and of course, with a short stitch as governed by the vertical position of the needle cylinder at this time.
The machine is now ready to`begin knitting rib fabric all around the leg. and for this purpose the cam 25 is moved in to lift the long butt needles over the dividing cam 4: cam 4 is moved in and cam 9 positioned to carry down and tuck on the medium and short butt needles, and for the nekt course cams 25, 4 and 9 are taken out of the way, to knit on all the cylinder needles; the dial cams carried by block 615 and the web holder cam .325 are moved downwardly to lil()
US559506A 1922-05-09 1922-05-09 Ribbed-fabric-hosiery-knitting machine Expired - Lifetime US1641554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US559506A US1641554A (en) 1922-05-09 1922-05-09 Ribbed-fabric-hosiery-knitting machine

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL17577D NL17577C (en) 1922-05-09
US559506A US1641554A (en) 1922-05-09 1922-05-09 Ribbed-fabric-hosiery-knitting machine
GB1122723A GB197665A (en) 1922-05-09 1923-04-25 Improvements in circular rib knitting machines
FR565773D FR565773A (en) 1922-05-09 1923-05-03 Ribbed Knit Hosiery Knitting Machine

Publications (1)

Publication Number Publication Date
US1641554A true US1641554A (en) 1927-09-06

Family

ID=24233842

Family Applications (1)

Application Number Title Priority Date Filing Date
US559506A Expired - Lifetime US1641554A (en) 1922-05-09 1922-05-09 Ribbed-fabric-hosiery-knitting machine

Country Status (4)

Country Link
US (1) US1641554A (en)
FR (1) FR565773A (en)
GB (1) GB197665A (en)
NL (1) NL17577C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2529181A (en) * 1947-04-25 1950-11-07 Scott & Williams Inc Sinker cam mechanism for circular knitting machines and method of operating a circular knitting machine
US3362196A (en) * 1964-12-11 1968-01-09 Nittex A G Circular knitting machine for the manufacture of ladies' stockings
US3475925A (en) * 1964-03-26 1969-11-04 Scott & Williams Inc Knitted products
US7836607B2 (en) * 2004-06-05 2010-11-23 Lg Electronics Inc. Drum of laundry dryer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726076A (en) * 1985-06-26 1988-02-23 Francoise Douez Childs garment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2529181A (en) * 1947-04-25 1950-11-07 Scott & Williams Inc Sinker cam mechanism for circular knitting machines and method of operating a circular knitting machine
US3475925A (en) * 1964-03-26 1969-11-04 Scott & Williams Inc Knitted products
US3362196A (en) * 1964-12-11 1968-01-09 Nittex A G Circular knitting machine for the manufacture of ladies' stockings
US7836607B2 (en) * 2004-06-05 2010-11-23 Lg Electronics Inc. Drum of laundry dryer

Also Published As

Publication number Publication date
NL17577C (en)
GB197665A (en) 1924-07-10
FR565773A (en) 1924-02-04

Similar Documents

Publication Publication Date Title
US2012607A (en) Knitting machine
US2231399A (en) Method of and apparatus for knitting terry fabric or hosiery containing the same
US1641554A (en) Ribbed-fabric-hosiery-knitting machine
US2318643A (en) Article of hosiery, including terry fabric
US2207463A (en) Selective control of sinkers, needles, and jacks
US2117208A (en) Machine and method for making knitted fabric
US1317897A (en) scott
US999853A (en) Circular-knitting machine.
US2315119A (en) Fabric and method of knitting
US2237145A (en) Knitting method and machine
US1927683A (en) Yarn-feeding device fob circular
US2073554A (en) Automatic circular knitting machine
US2009694A (en) Knitting machine
US3041860A (en) Means for and method of operating the sinkers of knitting machines
US2201716A (en) Knitting machine
US2286771A (en) Method and apparatus for producing knitted fabrics
US2289052A (en) Knitting machine
US2191378A (en) Circular rib knitting machine and method of operating same
US2971358A (en) Knitting machine
US2364217A (en) Knitting method and machine
US2101006A (en) Tarn change mechanism for knitting
US1673764A (en) Machine for knitting split fabric
US1939818A (en) Method and machine for producing knitted split fabric
US3142974A (en) Method of knitting hosiery
US2006414A (en) Knitting method and machine