US1046147A - Knitting-machine. - Google Patents

Description

W. W. BURSON. KNITTING MACHINE APPLICATION FILED JUNEQE 1996 1,046,147,- Patent-ed Dec. 1-912.

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W. W. BURSON. KNETTING MACHINE.

APPLICATION FILED JUNE 22,1896.

1,0l6, 1 4'7, Patented Dec. 3, 1 912.

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W. W. BURSON. KNITTING MACHINE.

APPLICATION FILED JUNE 9". 1896,

1,046.14. Patented D6C.3 ,1912.

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f x I KNITTING MACHINE.

W.- W. BURSQN. APPLICATION FILED JUNE 22, 1896.

1. G46 1 47 Patented Dec. 3, 1912.

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f V vBe ritlmown that I, VILLIAA; lVon'rr-t ff- -Bfnnsox, a citizen of theUnited States, ref, -fxf-sidingat Chicago, in the county of Cook }.-'5 :and the State of Illinois, have inventednce'r ftain new and useful Improvements in. Knit ting-hiachinegcf which the fol-lowing 'is' a i specification.

My invention relates to improvements in -UMTED strntrns air];i 'iT- Cri r- WILLIAM vVVOIB/JEH BURSOIL IOF CHICAGQ, ILLINOIS;

0 straightrow'knitting machines.

In .theaccompanying drawing :Figure 1 is'a plan view of certain portions. ofa knittingmachine;- having the invention applied thereto. Fig. 2- shows a rear elevation of certain of the parts of said machine." Fig. 3

; 1s a crosswise vertical section of Fig, 1. Fig.

shows. a central crosswise section of the yarn-ca'rrierand its supports. Fig. 6 shows 0' a plan view of the 'modlfied yarn carr er Ff.

' F 1g. is a section ofFigfG on the line 7 7 Sim lar letters of reference denote the ame parts throughout the, several news.

The needle-beds A, A, Fig. 3, are fastened tothe base pieces B, B, of the machine- .frhni'e the usual manner. beds are constructed manner 7 a The needles C are each provided with the The needle- 0 usual operating lug c and have in addition The needle-retracting cams D, D, Fig. 4,

aremounted. onfthe cam-bars D 1) inl'nsiial manner, and are adjustable in any convenient manner. j

I The-needle-projecting cams D, D, are

Peach fastened to an'arm D Figs. 1 and. 3,

ewhi'ch latter is pivoted-to the corresponding cain-bar D? at cl, Fig. 1, so a's to permit a movement vertical to the plane of the heedle caused to occupy their 'jworking positiong to cause ..the needles of both rows to'be'simuh t'aneously advanced, as in ribbed knitting, or the said cams may be alternately raised :at the opposite sides of themachine, as n tubular knitting. For. the 'purposeof'thm description theyvertical movement of arm K D may be assumed to be given by hand, but for'practical work automatic means should {be provided "to raise'and lower said arm,. as for instance in U. S; Letters Patent No.-

Specification of Letters Patent.

fish'owsthe-needle operating cams; F ig. 5'

in' anyapproved 'movement, whereby the said cams maybe 7 KNITTING-MACHINE.

i i application-filed March 13, .1886. Recipro eating. movement is communicated to the caln-barsl), D from the sha-fbH-mounted 1n bearings on the machine-frame,by means of the crank Hoii said 'shaft and the-pit: man H? connecting saidcrank with an arm bars. The yarn-carrier E,' F igs. 1, 3'and-5, is

through which yarn passes to the needles.- This carrier is circular andrests in its sup-' port E, which inturn is carried by the bars G.-.G moving in the supports G, G,-Fig. 3,- which are fastened to the pieces A, A. film bars G, G, areoperativelyiconnected in suitable and usual manner with thecain bars 1), D to move in unison; with the iatter. he slots 0 in said bars, coasting port E, permit the yarn-carrier to fallback each time a knitting movement is begun, and thus provide for adjustment of the yarn-carrier to the needle-movement in 'eitherdirection. 3-1; Thej.-'arn-carrier E' is-provided with the Itwill be perceived'that the said studs f,:f, etc., are the equivalent of teeth. The hooked racks E E, areivoted at a, a,- to the side pieces A, A, o the. machine-frame, and are held in operating position by springs a,a', which permit the said racks to yield carries the studs against :tlre bartksof the teetlrofa r'ack. Thegeneral'constr uction of the machine being essentially oftl1'e' wellgk'nown' Lamb scribe in detail those parts'which are wellknown, but only the novelfeatures. The means andmanner .ofadjusting' the retract ing' cams D, D, and con'trolling the'vertical movement ofthe projecting cams -D, D are' purposely omitteda s torming'no part of'rmy invention.

"In operation, ne end of tne'yarn' from 616,60Qgranted December 27, 1898' on my eitherfcone L is passed through the central r Patented Dec.3,1 912. ApplicationtiledJunc2 2 ,1896. Serial 110.553 6371. I

provided with two distributing eyes .-e,. ;e,-

with the pins e, e, ofthe yarn-carrier sup or stud H- projectingfrom one of'said cam notches which are-formed inits peripherv.

as; the return movementioftheyarn carrierpattern," it'i's' not deemed necessary to "de overhead drawing-off guide Z, then through the eye of a take-up Z, then through the yarn-carrier eye 6, when it'is ready to be engaged by the needles C. Each cone has its central overhead drawing-oh guide Z,

. take-up Z, and yarn-carrier eye e. The knitting operation will be understood by reference to Fig. 4:. The lug c of a needle is acted upon by the retracting point d of cam D, to draw the needle down, and is then-engaged by the point- (Z of cam D to project the needle. Then cam D draws the needle downward by means of retracting oin't- 03 a varn bein en a ed as the needle 'of the needle in all cases. This passes the first yarn-carrier eye 0. The first yarn is knlt when the needle passes the said retracting point (1 The needle is again ad-' of the cams admits of knitting back and forth on the same row.

\Vhen the needle enters the cam groove at the point (2, as in knitting from ieft to right, the knitting ends at (1*, and when it begins at d, as in knitting from right to left, it

ends at d.

When the yarn-carrier has passed over the.needles', one of the studs of the yarncarrier engages the first tooth of the toothed rack E and con'secutivlv other studs enpoint's (Z,

construction gage the correspondingteeth of said rack,-

by which operation the yarn-carrier is turned one half around for the return stroke. On the succeeding movement in the other direction the yarn-carrier is again turned one-halt around by means of the other rac 4 it completing one full revolution for each round of the knitting.

It will be understood that the supplycones L, L, containing the yarns that are being knit must have their relative positions changed as often as the yarn-carrier is turned, so as thereby to prevent the said yarns from becoming twisted or entwined together. To accomplish this, the a-miular ring J is held above the machine by the supports J,

Fig. 3, which are connected with stationary parts of the machine. The. ring K provided with external teeth rests on the support J. The supply-cones L, L, are mounted on the ring K, as also the take-ups Z, Z. and drawing-off yarn guides Z, Z. Movement-is given to the ring K by the mutilated gear I, Fig; 2, which is fastened on the crankshaft H and meshes with pinion I on the lower end of the I, to hold said pinion either of the 'delay surfaces 2',

edge with notches, as indicatedin 6, Q to receive the point of the detent-spring FE, l ig. l, by which accidental move1nentof the l QYhieii it d' esi red .to form the knitstitches 13d shaft I on the upper end of which'shaft is the spur gear K which" meshes in the tooth of ring K. At each turnof the yarncarriers the yarn-cones L, L, are correspondingly turned by a segment 2' of the mutilated gear I meshinginto pinion 1. The in'uti lated gear Ihas the segments 2', z', oppositely located thereon, and between these segments outside of their radius, the delay tracks 2', z", for co-action with the fiat outer face of the lockin -piece Z Fig.2, of the bevel pinionv at rest when not'engaged by thesegm'ents. Thefiat surface of the said locking-piece Z of pinion I is of such length as to hold the said ,pinionat rest while said flat surfaceis in contact with" i, oneof," I which with its corresponding "segment z' oc Y cupies just one half of the entire gear wheel I, the rotation of which gear gives the pinion two complete intermittent revolutions for each of its single revolutions. If it is desired to change the yarn only i i at one, end of the needle-rows. then the proper rack E should .beremoved. and one 0' segment iomitted from gear I, which' 'will f 7 reduce the yarn-carrier movement to- 'one half revolution Efor eachround of lmittinggj -as also the movement of the-yarn-cones.

Figs. 6-and 7 of'the'drawings show a 5 modified form of yarn-carrier by means of which. when desired, two yarns may be de-' f livere'd together to .the same set of needles.

instead .of separately. to different needles"- as'withthe carrier already described. The 9 yarn-carrier E of Figs. 6 and 7- is adapted to be rotatahly mounted upon the yarnearrier fsupportE', Figs. 1, 2 and- 31 To 7- thisend itis 'provided with a'disgkeshapedfi =body correspondingsubstantially with that 5 I of the yarn-carriear E.v and capable (if-fitting l l a socket or bearing which is, provided: upon the said support E, as in the case of .yarncarrier E; In practice, when desired, the. two yarn-carriers maybe interchanged etc-.1105 carding as itis desired to produce 'onevaf riety ofknit goods or the other. .Z Ihe yarn-.. carrier E is provided, below, with a' single... delivery-eye e, from which the yarnor yarns that are .threaded therethroughekuua tend to':the needles Above, the said yarncarrier is furnished with three eyes, namelyv oppositelyrarranged eyes 6? and .65, and an ii'itermediate "eye e, all converging. toward, the delivery-eyes. In the normal-position of the carrier E the three eyes 6 efl e I extend in a 'line at ,right angles to; the l length of t-heneedle-beds. The disk-shaped ,i

body of the carrier E is formed in: its

yarn-carrier after being set or ad justed is prevented in the case of either ca1fr1er.

.of two yarns laid together, with one of such yarns appearing upon the outer face of the goods or fabric and the other thereof upon the inner face thereof, the said yarns are led, respectively," through the eyes 6*? and 6, respectively, before being drawn through. eye e. The yarn which is to appear at the outer face of the goods or fabric is led through that eye (e or e?) which, 'dtiringthetraverse of the carrier in a, given direction in the operation of the machine,

is turned toward the outer side of the fabric,

fthe other yarn being led through the eye which is turned toward the inner side of the adapted to advance the needles, a retracting-- 'cam adapted to draw down theneedles to knit one yarn, both of said cams acting upon one of the said lugs, and the retracting cam in addition provided on its upper-edge with a projecting part adapted to act upon the other of said. lugs to advance the needle afterthe stitch is formed, substantially as set forth.

'2. The combination with a needle provided. with two lugs, of the projecting cam D: and the retracting cam D both engaging with the same lug, the said retracting cam in addition'const-ructed to move the needle upward to pay back the needle by engagement with the other lug, substantially as set forth.

The combination of a series of needles, reciprocating'knitting came, a yarn carrier provided with two distributing eyes and supplying two yarns which are both knit' by the same needles at each reciprocatiom-a yarn cone holder with an outside support and a central openlng, and mechanism for turning the yarn carrier and cone holder at the curb of the knitting stroke, substantially as described.

- 4. The combination of a crank-shaft, mutilated gear, and intermediate gears, and annular ring K, and a knitting mechanism including traversing yarn-guides receiving the yarn from supplies carried by the said ring, operating substantially as and for the purpose set forth. I

WILLIAM WORTH BURSON. Witnesses i v i WM. T. La'rHRor, H. D. EASTMAN.

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