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

Ribbed-fabric-hosiery-knitting machine Download PDF

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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
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Prior art keywords
needles
cam
dial
fabric
web
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US559506A
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Robert W Scott
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Scott and Williams Inc
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Scott and Williams Inc
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Priority to NL17577D priority Critical patent/NL17577C/xx
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Priority to US559506A priority patent/US1641554A/en
Priority to GB11227/23A priority patent/GB197665A/en
Priority to FR565773D priority patent/FR565773A/fr
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/18—Dials
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/06—Sinkers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D04B15/34—Cam systems or assemblies for operating knitting instruments for dials
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/94—Driving-gear not otherwise provided for
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/06—Circular knitting machines with independently-movable needles with needle cylinder and dial for ribbed goods
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/22—Circular knitting machines with independently-movable needles with provision for changing the fabric construction, e.g. from plain to rib-loop fabric

Definitions

  • 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.
  • 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
  • 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
  • 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
  • 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
  • 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;
  • 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.
  • 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.
  • the stocking Z comprises a 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,
  • 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,
  • 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.
  • 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
  • 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.
  • 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.
  • alternate needles of one ofthe two series,'cylinder and dial are.arranged to be active and 1nactive, the remainder being ever-active.
  • v f The 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
  • 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.
  • the 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.
  • 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,
  • 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.
  • 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.
  • 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.
  • 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
  • the pattern of rib 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.
  • 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,
  • dial needles (Figs. 3 and 22) a and b', or shorter butts a2 ⁇ and b2, andy ,1
  • havinflr vhooks facing each other 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.
  • 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,
  • 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.
  • 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.
  • 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.
  • the serrations fw 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 is preferably 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.
  • 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.
  • 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 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.
  • 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",
  • the cap 300 may be provided with any desired sys-.
  • 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
  • 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.
  • 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.
  • cam 312 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 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.
  • 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.
  • ⁇ 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.
  • Means for giving related motions to the cylinder and dial and the web holders may be rovided as follows:
  • 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.
  • 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.
  • 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.
  • the dial 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.
  • 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,
  • the dial cams may also include a'xed separator cam 14.
  • 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).
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the picker 680 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.
  • 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.
  • the operation is from toe to top.
  • the needle dial 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.
  • 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 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.
  • 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.
  • 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.
  • the machine is operated to make the section of plain fabric h above the heel and to continue ribbing at the instep segment.
  • 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.
  • 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()

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Knitting Machines (AREA)
US559506A 1922-05-09 1922-05-09 Ribbed-fabric-hosiery-knitting machine Expired - Lifetime US1641554A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL17577D NL17577C (xx) 1922-05-09
US559506A US1641554A (en) 1922-05-09 1922-05-09 Ribbed-fabric-hosiery-knitting machine
GB11227/23A GB197665A (en) 1922-05-09 1923-04-25 Improvements in circular rib knitting machines
FR565773D FR565773A (fr) 1922-05-09 1923-05-03 Machine à tricoter de la bonneterie en tricot à côtes

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

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US (1) US1641554A (xx)
FR (1) FR565773A (xx)
GB (1) GB197665A (xx)
NL (1) NL17577C (xx)

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

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NL17577C (xx)
FR565773A (fr) 1924-02-04
GB197665A (en) 1924-07-10

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