US879681A - Knitting-machine. - Google Patents

Description

l PATENTBD PEB. la, 1908. R. W. SCOTT. KNITTHIG MACHINE.

APPLICATION- FILED IAB. 3, 1902.

3 SHEETS-SHEET 2.

' PATENTE FEB. 1S, i908.

KENT

APPLICATION fum ma.

UNITED STATES PATENT oEEIoE.

vROBERT W. SCOTT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGXOR OF ONE-HALF TO LOUIS N. D. WILLIAMS, OF ASHBOURXE, PEXXSYLYAXIA.

KNITTINGMACHINE.

Specification of Letters Patent.

Application ed Huch 3. 1992. Serial No. 96.456.

Patented Feb. 18,1908.

. To aZZ.wwm it may concern.

Be it known that I, ROBERT Vt". SCOTT, a citizen of the United States, residing in Philadel hia, `Pennsylvania., have invented certain mprovements in Knit-ting.\laehines,.

15. the fabric is composed.

The obj ect of my invention is to so construct such a machine as to render unnecessary the usual reciprocating hooks or sinkeis for the rpose of forming the desired projecting oops of fleecing yarn, an object which l at tain -hy the use of relativeljvv fixed sinkers in cooperation with needles of the machine so actuated as to receive the lleecing yarn and draw loops of the same over o1; around said sinkers.

In the accompanying rlrawingsz-14`igure 1,is a vertical sectional view of suiiicient of an ordinary type of rib knitting, machine 'to illustrate my invention; Fig. 2, is a front 4View of part of the same; Fig. 3, is a sectional plan view; Fig. 4, is a sectional view of part of the machine, illust-rating another ernbodiment of my invention. Fig. 5 is an elevation of the innerl face of the cam cylinder of the machine developed on a flatplane, Aand Figs. 6, 7, S and Q are enlarged views illustrative of the operation of the machine.

' Myinvention is applicable either to niachines having rotating needle cylinder and 40 dial and fixed cam carrier, or to machines having fixed needle cylinder and dial and rotating cam carriers, the latter class of ma chine having7 been selected for illustration,

1 representing the fixed needle @vlinder of the machine, 2 the fixed needle dial, 3 the rotating cam cylinder, and 4 the rotating dial cam plate, all of these parts being constructed and operated in a manner common to ordinary knitting machines of this type with the exception thatthe cam cylinder 3 has in addition to the ordinary cams :c and :r

. (F 5) for operating the needles to receive andraw loops of the knitting yarn from the yarn guides 5 and 6, Fig. 3, another set of cams 55. 7 (Figs. 1 and 5) for partially projecting the needles so that they inayreceive fie'ecing yarn from a guide 9 mounted upon the rotatingcam cylinder 3 of the machine as shown in 'l"ig. '1, the partial projection of said needles not being suilicient to clear the' stitches upon 50 them, so that the needles, on their descent after having received the iieecine `varn. will simply draw loops of said yarn which will be cast ofi upon the next operation ofthe needles necessary to form stitches of the knitting varn in the production of the fabric, AThe length of the loops of ieecing yarn thus drawn by the knitting needles will be dependent upon t-he relation of the hooks of -the retracted needles to the sinkers inter` 70 posed between the needle grooves; and.V in order to insure the. desired extent of prnjection of the ,loop of fleecing yarn at each sinker w le of the fabric, at which itis le-h. sired to t us project the same l provide the needle cylinder 1 with sinl'cer bits l() preferablysecured in place b vbeing let into grooves in the cylinder as shown in F igs. 'I'and 2, the

to s of these bits being beveled on the inner si e as shown in Fig. 1 so as to throw the 80 loop of fleecing yarn inwardl)v as it is drawn down over the bits b v the descending needles. the sinker hits extending inwardly beyond the needle grooves to the extent desired` for thelength of loop to be formed., y 'T hesinker i 8'5 bits are by preference, notched as shown' at 1l, in Fig. l, for the'p'uxpose of engaging with the fleecing yarn and retainingl the same when the cylinder needles rise t-oreceive fresh knitting yarn, thereby maintainino' the rejecting loops on that side of the ribbed itted web upon which it is desired that the loop shall be formed.

The notched sinker bits also actupon the stitches of the knitted web to prevent rise of the said web with the cylinder needles when the latter rise to receive the fresh knitting yarn, but otherwise do not aiiect the knitting operation. The fabric produced upon the machine is substantially the same as that shown in the patent of Baron & Ingalls No. 603,164- dated April 26th 1898.

The operation of the machine is indicated in Figs. 6 to 9, Fig. 6 showing the position of the parts after the cylinder and dial needles have drawn their loops of yarn, F ig. 7 showing the cylinder needle partially raised .so as to engage with the leecing yarn 1lb, Fig. S, showing said cylinder needle retracted so as to draw a loop of said .tieecing yarn over the sinker l0, and Fig. 9 showing the cylinder needle :gnin l'nised thr'ongli the loops nll ileecing yarn i: and knittingv yarn g/.Y-so :i: to engage a fresh supply of said knitting i"nn y,--tl.\u dial needles being also projected so as to enga-ge said yarn.

During the second rise of the cylinder needle the lleecing yarn loup. :is well :is the previously forint-d stitch ol' the knitted web. is engaged by the notched portion nl the sinker. and the lleecinjtr loop is retained behind beth sets of needles so that when cast oil by the cylinder needles un the dest-ent of the luttes' after engaging the fresh knitting yarn. the loop will be delivered into the space between the cylinder aizd dial stitches. the surplus portion of the lleeeing loop projet-tilt;r on one side of the l'nbrif.' between the wales ol' the saine. :is shnwn in the inished pdtinn of the fabric repre nted in tite dherent views.

I have shown the fleet-e lump tunning sinkets on the cylinder of the nniehine bnt they 11111)' be applied to` the tlizil if desired n to both cylinder und dial, and the .sinkt nifty. in sonie eases. be formed :is in integnl ptiv t of thtl needle carrie? in ennnretiun v. ith which they :ire nsed instemt nl' being in the forni nl" inserted bits. the latter eenstfnctinn. linebever. beinfr preferred. (ln the otite: lian-ii. however. the sinke's muy be eniieti by ur forni part ol" :t heel mounten sn as tn Le free to rotnte and ennsed to thus ietnteby engagement with the needles u.' needle enziie: ot' the nim-hin?. one enim riant-nt of sich idee` being shown in Fig. 4 .nheein lo" renie- .sent sinkers forming pmt of e. heel 1;. which is mounted so :is to ne fz'ee tu .Unite on :i st'..-1i 13 carried by the eatin 'ylinie.' Il. the sinke s restingr un the tup of the needle i, \lin.ie.":in\l prtijeeting lit-ineen the neeajlesnt' the sanne. :is shonn. :intttne wheel lit-nig minst-: to z'otute by engagement nl snid sinkt-:s vt ith the needles, :ii'iez' the manner nl' n spnr wheel :nid

pin ion.

ilftving thns described in v invention. I claim :ind desire to secure by Letters Patent:

l. A :ib knitting machine having two sets ol' in edles. :i knitting yat-:n guide. means for knitting upon the needles` n .lleeeing yarn guide. and ineens whereby needles of one set are caused vto engage and dra-w stitches oll snid lieecing yarn. said means including lleecing yatn engaging devices occupying a. lixed telzttion to the needles of the machine.

L. tib knitting nnichine having two sets vol" needles. u knitting yarn guide, mea-ns for knitting upon the needles, n. ileeeing yarn guide. and means whereby needles of one set :1re caused to dran loops of said ileeeing yzi;n. said means itnxlnding lleecing yarn engaging devices disposed between 'the needles oil one set :ind occupying u iixed relation to sind needles.

3. iib knitting machine having tivo sets ef needles. u knitting yat-n guide, means for knitting upon the needles. a. ieecinv yarn gciitie. means l'o.' dnwing loops; of said` fleecing yan by the needles nl one set only, and liet-cin;T yam engaging devices notched to en- ::tge seid ieeeing ya n and prevent rise of tne suine ith the needles nt the knitting print.

4. Lib knittingr nmehine having tivo sets nl riet-tiles, n l-:nitting yarn guide. means for knittingt npnn .said needles. n. lleecing vztrn gnitze. nienns fu; d'aiiving loops of said yarn by tite needles nl une setonly, and lieecing yu-.n engaging devices ocenpying a fixed relation to said needles und notched to pievent rise of the lleecing yann with the needles at the knittingr point.

ln testimony whereof, I have signed my name 'w this speciticution, in the presence of tivo subset ibing witnesses.

ROBERT QCOTT.

Witnesses:

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