US819407A - Pattern knitting-machine. - Google Patents

Description

PATENTTD MAY 1, 19o@l -W.'W. BURSON..

, PATTERN KNTTTTNG'MA CHINE.

APPLICATION FILED 1350.30. 1895.

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- Wax/W PATTERN KNITT'ING MACHINE.

' APPLICATION PLED DE.30,.1895; l l

7 SHEETS-SHE; TTTT E lll/Uilm lllllllum l JMM No. 819,407. f PATENTED MAY 1, 1906.

W. W. BURSON. .PATTERN KNITTING MACHINE.

APPLIGATIONTILED DBG. 30. 1895.

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. W. W. BURSON.

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PATTERN KNHTING MACHINE.

APPLICATION FILED DEOKO.. 1895.

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l PATENTEDMAY l, 1906.-

W. W. BURSON. 'PATTERN KNITTING MACHINE.

APLIGAT'ION FILED DEGgSO, 1895.

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- 1 i PATTERN KNIjIjTINC-i-MAyoHlNr-z.v

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' Speccatonof Letters Patent.

lilium-ion med Decembe'r 30,1895. serial 113.573.769.

all it'mdy v Be ity known that I, WILLIAM Won'rn BUR- SON, of Chicago, in the county of Cook and l State of Illinois, have invented a new and Imrelations of apattern-cylinder, rocking/lever,

proved Pattern Knitting-Machine, of which the following is a speciication v My -invention is an improvementin that class of knittingfmachines called straightrow .machines, inl which two rows of needles are'arrangedt'o point toward ,each other at an obtuse/angle and are arranged. to knit across,

a slotted openin ,down which the knitted article passes as t e work progresses, the needles. ofr each row being alternated with` a set of presser-hooks for holding the work down and both rowsA of needles being o erated by cams connected with slide-bars t at are arranged to reciprocate atright anglesto the length of said needles 'so as to move the latter an cause themv tocoperate with the'yarne, carrier as it freciprocates vacross the hooked inner. ends 4ofthe needles.v`

Infthe drawings I havefshown the invenr" tion. embodied in amachine which is essentially identical in its generalconstruction with that ofUnited States Letters Patent No. 616,600, granted to me December. 27, 1898..V i

Figure. 1 Sheet il,

is a sectional view through the machine aforesaid, showingthe 4into operation the needle which in Flg". I0j1 s needle-jack, and needle-actuating nam, the latter-beingY down in osition to operate against the needle-jack. ug, and the needles beingprojected to their utmost throw in'position to be'operated upon by the latch-o en ers jon the yarn-carrier. .In this view I ave shown a portion of the pattern-cylinder at` one side of y.the machine,.together with the adjacent arts and a small portion of th parts attA e other sideof the machine. Fig,

- dle movement in. setting up` the toe ofaistock- 2, Sheet .1;,v isy a vsimilar .section ofthe same parts taken in the same plane as Fig.. lv and,

showing the `needle-actuating cam/raisedfout of range of contact. with the needle-jack lug.v Fig. 3, Sheet l, is also al similar viewin the same plane, but showing. thene'edlefjaclede# ing.' -or the like. i Fig. 43, ,Sheet 3, illustrates the position which the r'st course of yarn fed to the'needles caused to assume the nee# z Patented May 1, 1966.

dle movement of Fi 4. Fig. -5, Sheet 2, vis a diagramshowing t e return 'needle movement. succeeding the needle movement of Fig. 4-in other words, Fig. 5 shows the latten half of the rst round in setting up theftoe;

Fig. 5a, Sheet 3,' shows the first and second courses of set-up stitches as produced by the'r needle'movements which are represented by Figs. 4 and 5,.Sheet 2.` 'Fi .6, Sheetl2, is a'A diagram showing the nee le movement-.in beginning the heel of a stocking or the like.

Fig. 7, Sheet 2,is a diagram showing the return heel-needle movement next succeeding that of'Fig. 6 on the same row of needles as in Fi 6.- Fi .-8, Sheet 2, is a diagram showing a veelnee gi 7o. le movement similar to that in Fig. .6, but on the opposite row of needles. Fig. 9, `Sheet 2,v is a diagramshowing ,hee1

needle lmovement,likeI that in l 7., but on `the o posite row 'ofneedles, as in Fi 8. Fig'.

A dle movement .of w 'ch the reversing-needle is dropped. outof action on onev row of the:

needles. ing a heel-needle movementinwhich the reversing-needle is droppedout of action on the diagram representing as having been brought dropped. FigslZa'and 12b, Sheet 3, are dia* grams of portions of widened knit fabric, 'showing the results produced in the fabric lby f the'rowopposit'e that `inwhich vt e widening .row opposite to that in which the dropping. out occurs in Fig. 10. Flg. 12, Sheet 4, isa

occurs brougrhtl into /operationfsimulta'ne ously thenew widening-needle. Figs. 13,,Sh'eety 5,i's a diagram of a portlonI of -Widened knit kfabric int e productionof which the neefdle movement illustrated in Fig'. 13 is:A utilized. Figs.\1 4 and 15, Sheet 4, are dia'v grarnsashowing other movements, of the neefv ,dles 'forwidening- Figs'. 15, Sheet is adiay" Mgram'fshowing portion of a widened ,fabrlc' 1n roo the, production of which'the needle-move- Y*ments of Figs. 14 and 15: are`utilized Figs.

16 to. 19"Sh'eet 6, are diagrams showing neelv .Sheet 1 5, is va dia ram showngt 'e positionof Aments of Figs. 16 :to Figs. 2() and 21,

Sheet 6, are diagrams showing another needl'emovement used in widening. Fig. 21a, Sheet 5, is a diagram of a portion of widened fabric produced by the needle movements of Figs. 20 and 21. Figs. 22 and 23, Sheet 7, are diagrams on the orde; of developments on a plane of the main pattern elements of the two pattern-cylinders, Fig. 22 showing the said attern elements of one cylinder, and Fig. 23 s owing those of the other cylinder.

Having referenceto the drawings, in Figs. 1, 2 and 3, Sheet l1, C C are the two'needklebeds of the machine, and ais the narrow slot between the inner edges of the said needlebeds, across which slot the needles work'a'nd down through which the article being produced passes as it is knit. E represents the needles, and F` the needle-actuatinor jacks, both arranged inthe slots-of the needle-beds and the needles being loosely connected to the jacks, which latter have lugs b normally i projecting above the general level of the needle-bed into position to be engaged and operated by the needle-actuating cams G Gr2 upon the lower sides of the cam-bars G G,

which reciprocate endwisein a. direction at right' angles to the jacks and impart the necessary reciprocating motion to the jacks and through the latter to the needles.l Fig. 5 shows only the jacks, needle-actuating cams, and cam-bars at one side ofthe machine. The lower ends of the need'ie-jacks rest in slotted seats in the rocking levers H, which correspond in number to the number of needles. The jacks at each side of the machine are pivotally mounted upon a rod D', so as to be capable of a rocking or tilting movement.

Such movement` of the said levers H gives a vertical movement to the needle-jacks, and

. accordingto the directionin which the levers H'are swung either raises their lugs b above the needle-beds into the range of action of the needle-cams, as shown in Fig. 1, or depresses'.

them below the upper surfaces of the -needle- 'beds and out of such range of action, as

- shown in Fig. 3. This capacity for rocking movement possessed by the levers H ro,- vides for enabling any number of needles to be thrown into or out of action individually. The adjustment'or shift of the levers H is caused automatically by two pattern-cylinders I, one on each side of the machine, (only one of which is shown,) the periphery of each pattern-cylinder being wrought into elevations and depressions that operate upon the two feetc c of each rocking lever H to give to the respective rocking levers the necessary movement. The levers H, respectively, are bent or offset laterally, so that the feet c c of each ofthe said levers rest in different vertical parallel planes upon two adj oiningdifferentJ peripheral sections of the corresponding pattern-cylinc le'r.l Thus each'of the said levers through the interaction of one set of projec tions on the pattern-cylinder with one foot,

and is moved positively inthe other direction through the interaction of the adjoining set of projections on the pattern-cylinder. with the other foot. As in my Letters Patent aforesaid, each pattern-cylinder is rr ade of a j series of rings or disks, which are cut upon their peripheries with notches and elevations corresponding to the desiredpattern, these rin s or disks being made in pairs, one ring or isk of each pair being the complement of the other, and each pair of rings constituting 4the pattern for one rockin lever H and its correspondingneedle.- Int e diagrams ofthe two. pattern-cylinders which are given in *,FIilgs. 22 and 23, Sheet 7 I have represented y the acting portions of the main cylinder or disk of each pair. of'pattern rings or disks,

the supplemental ring or disk of each pair which forms the complement of that one which is shownbeing omitted in order to simplify the drawings. j The cams attached to the under side of each cam-bar G are double cams, which are adapted to lproject and return the needles at each single stroke of the needle-cam bars.

In knittin some kinds of work it is necessary that o y a singlenstead. of a double) actionfof the cam should :take place. Thus in knitting tubular goods the needles on one side must be advanced and retracted by theI forward movement of the needle cam-slide, and then the needles upon the other side advanced and retracted by the return of the 'said slide, the first set of needles remaining qlliliescent during the said return stroke. For t 's mode of action the cams which advance or project the needles are made movable into and'out of operative position, so as to enable them to be lifted out of positionfor engagement with the lugs of the needle-jacks, as in Fig. 2, at every alternatestroke. The means roo of controlling the action of the cams and lifting and lowering them is shown and described in my patent aforesaid.

P represents the resserfhookawhich hold the fabric down in t e slot a. These rise and descend with every movement of the needles and are actuated by the presser-hook-actuating cam-bars R,.the latter being operated in manner shown an'd described in the Letters Patent aforesaid.

IIC

The remaining features of construction' and the mode of operation of the machine are in general as set forth in my patent aforesaid.

Inasmuch as every needle in the machine is controlled by a pattern, it followsV that a great range of combinations of lmovements may be made for the purpose of knitting'dif-A ferent articles. A few of the said combinations embodying features of the resent invention will now be described. n this deseriptio'n I shall refer-to the 'diagrams Figs. 22

and 23, Sheet 7, Yshowing the main pattern'V elements of the two attern-cylindersa As I have already stated erein, in Figs. 22 and 23 I have represented onlythe acting edge" portions of the main ring or disk of each pair of rings or disks yof--the'respective patterncylinders, the supplemental or complemental ring or disk of each pair being omitted in order to simplify the drawings. In Fi 22 the order of sequence' of the successive l(lines ofieleuatiommdgpressions of the pattern is from left to'rightfin Fig. 23 from right to left. The said linesae numbered consecu- 'tivelyin each igurefand lthe lines which act` y in unison bear the same numerals.

'To set u the toe'of a stocking or the like,4

correspon ing portions of both rows of needles are utilized, the` iirst "fstepA or row of indicators of each pattern-cylindenthe same being designated 1 1 in Figs.' 22 and 28, re-

spectively, acting to cause the'needles of both rows to be thrown forward simultaneously to take the yarn, as indicated in Fig. 4, 'Sheet 2, and the yarn being taken by all ofthe said.

. needles ingtheL inst Y'passageofy the yarn-carimovement. Ther result in` the fabricY is shown the diagram Fig. 5*?, Sheet'S. I

regard this' manner of'setting u and closing thetoeof the stocking or the' ike'v as better thaiisthat which usual y' is' adoplted in praceretoforein tice. i', It has beenthe ractice-- Wst'artin, j,"th'e knitting y closing the toe to place the yarn in the first'course upon all of the needles whicharedenominated settingup needles and then to knit all the needles -on each ,side on which' there are loops before widening. This operation makes a thin set-up line andcauses a severe strain upon 'the yarn which is first `placed upon the nee-` dles. vBothof these drawbacks ordisadvan-y tages are relieved -by `my plan of closing the toe and setting up the knitting. I The toeis now ready to be vwidened by the needle movements, which will beconsidered later.

To knit the heel of a stocking or the like, -I prefer-to knit a part of one row ofneedles', as CD to CD7 of `theCD row (see. Fig-6, Sheet 2) during the passageiof the yarn-carrier in one direction and in the return movement (see Fig. 7 to drop H'needle CD7 and to knit CD6, called the ."reversing-needle, and:y all4 ric, as distin ric, orl end o a needle-row, thest needle 1n In the .return-passage alternate 4AB row the needles fromAB to ABl".

the other needles to and including CD. The

vlmitting is'then crossed over to the AB row and needles` AB to'AB7 are knit, as in Fig.

8. On the return movement needle AB7, A

Fig. 9, isgomitted and needles AB to AB6 are knit. The knitting is then crossed over to' the CD row again, and a series of needles dieriug from the' former one is knit, the last needle knit in the passage from left nto right being dro ped on t e return-passage. Steps 5 to 13 o the respective pattern-cylinders, Figs. 22 and 23,- control during these movevments. In this procedure no twoconnected rowsl of switches or courses are of the samer length, the return course being uniformly one needle shorter than the outgoing course,

and the third row of stitches on either-side t should stop, preferably, at least one needle y short of the last row knit, the fourth course,

like the second, being one needle less than the former course. The result ofthis prof cedu're is illustrated in Figs. l2a` and l12'?, "Sheet 3.

when the knitting Courseends in .the fabished from the ed e of the fabthe return course-for instance, the needle CD6 of Fig. 7, Sheetv 2., and ABxof Fi 9,

When it-isnece'ssary toknit asta reversing-A needle in either row of nee es, the said needle is dropped, as indicated by Fig. 10, Sheet 4, in thecase of needle CD?, and two or more stitches, preferably, are knit beyond ita`iter which the same return movement that has already beenfdescribed is made on that row. The same action is repeated on the AB row of needles when needle AB6 is dropped and knit past, Fig. -1-1, Sheet 4, and the return movement ismade as above stated. A repetition of these movementsinthe proper order forms a Well-shaped heel which is free from eyelet-v holes and which may. be knit without other appliances thanthe regular needle move` 'ments require.

Towidenl the fabric, as in the toe, heel, and, leg of the stocking, when the knitting is begun at the toe, three different combinations IIO of needle movements, available under diern en t circumstances, are capable of being utilized either separately or conjointly, asnoW will be explained. In Fig.,12the needles of the CD row are all meant to be-o erative from needle CD to. needle CD, an on the Fig.

-13 shows all of the needles ofthe CD row eX- et CD1.1 dropped out of action, and needle which is `the needley to be brought into action for the purpose of widening, 1s actuatedin such manner that needle CDUtakes the yarn between needles 1AB.1P=1and AB11 and'knits a stitch, whichoperation closes the eyelet-hole which otherwise'would be made by the widening-needle.

The result in' theoutside of said needle is brought into action Wideningneedle are dropped out .of action,

thereby knitting over or past the r'stwidenwhereby the strain on the yarn in the o era.- Io

ing-needle, substantially as spec-ined. tion of Widening is reduced, substantia y as 6. The combination of tWo rows of needles, set forth. 5 and needle-controlling patterns so formed WILLIAM WORTHv BURSON.

that when a needle is widened the first ad- Witnesses: A joining needle on which there is already a WM. E, HINCHLIFF, stitch,as also the third needle from said H. D.EASTMAN.

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