US1578710A - of milwaukee - Google Patents

Description

March 3o, 1926.

1,578,710 A. E. BYRD YARN GUIDE Filed July 24, 1925 Patented Mar. 19x26.V

UNITED ATE-s@ ARTHUR, E. Bynn, 0F MILWAUKEE, WISCONSIN, 'AssIeNoR To PHOENIX Hos'InnY ooirrrANY,V o iiiviIL'WAUKEE, WISCONSIN, A CORPORATION on wIscoNsIN.

YARN GUIDE'.

Application lfiled July"24, 1925." Serial No. 45,747; l'

To all whomz't may concern:

lBe itknown thatI,-AnTIiUn citizen of the'Uni'ted States, resi`din'g atMilwaukee, *in the county of Milwaukee and State of Visconsin, haveinvented a `certain Guides, of `which the Vfollowingis a full,

clear,'. concise, and exact. description, reference being had to the accompanyingA drawings, forming apart of this specification. .il

'Myinvention relates to yarn guides particularlyradaptable in circular knitting machines for guiding theyarn from the supply cones to the needles of the needle cylinders.

These yarn guide structures comprise a'l guide bracket and a, guide plate and the object Vof the invention is to make flexible and y-eldable the heretoforev rigid guide plates so,

as .to permit them to be set close to thelcyl# inder needles soV that'as said needles travelV past theplates they will always be contact therewithand will cooperatewth the plates to fully receive the yarn toy eliminate.the`

dropping of stitches to prevent tearing of the yarn, and to prevent strain onand breakage of needles heretofore caused by the catching of the needle hooks in knots, bunches,Y

spread sections, vor other 'irregularities in the yarn. By means. of my invention, needle breakage is reduced to a minimunnand I also eliminate the delay heretofore required 1in replacing the'broken needles and untangling'. the torn fabric, whereby` the fabric. production is materially increased and also a uniform quality assured. 1 p

On the drawings, illustrating my invention,

more

Fivure 1 is a frontelevational view ofa.. C

section ofthe needlesupporting and carryingcparts, and ore offthepimproved yarn guide structures;

v Figure 2 is a. sectional view ofthe guidev structure on plane 2-2, Figure 1, and

4Figure 3 isa side elevational view with the guide plate partly in section and showing its cooperation with the cylinder needles.

Fig. 4 is a fragmentary view'of the re? verse siderof the guide shown in Fig. 1.

On the drawings, 10,represents the needle cylinder, 11 the needle dial and 12 the dial' cap. The cylinder 10 has the guideways 13y forthe vertical needles 14: while the dial has therguidewaysgl for` the horizontal needles 16. Below the cylinder 1() is the cam cylinder 17 having the camway `18 for engaging with" andcontrolling the verticalderand dial revolve, or are stationary.'V

.reciprocatioii' ofthe cylinder .needles in manner vwell -known lin the art. The machine maybe of the type inwhich the needle cylinthe arrangement.shown, the cylinder kand dial yare supposed to rotate while the dial. cap and cam cylinder arestationary.

"Mounted" on top of lthe dial In r cap-@1.122v and equally spaced thereon are anumberofl guide structures Gr ofv which one is shown,` the guide structures serving to guide the.

yarn Y from the supply cones Y(not shown), K, which are also supported fromjthe dial lcap 12; VThe vguide frame orbracket for. each or more guidej bushings 23.' for tlieyarn.'`

The baseof the bracket overhangs the edge" of the dial `cap and inthe outer vface of the upright part 212 isV provided the vertical guidev channel 24 for. receiving 'and guiding. the yarn guide. plate 25. At its lower end the guide plate'isexpanded laterally toform the needle guide point or'toe 26'and the yarn soV guide heel 27, the needle cylinder` and dial rotating yin* the direction indicatedV by the` arrow of Figure '1f The yarn coming throughftlie guide bushing 231 extendsv through the guide opening or'eye 28 from the frontttothe rear thereof and is received by and .carried with the needles as the ,cylinder and dial .rotateallgin thewell known manner. y-As the cylinder and dial rotate, .f the cylinder needles travel through the camways'lS below the respective yarn guide. structures, yso thatlthe needles are raised with their hooked .rends .above thefguide vopening-28 as they travel.pastiandjbehin'di the foot of. the yarn'wguide plates 25, the` needles, consecutively, as., they travel ldown-fv wardly,l hooking around and vreceiving the yarn and carrying it dial needles. v

Theyarn fed tothe needles is not always uniform. vIt may have knots,bunches, loose ends, spread sections, and other irregularities, and it may Waver or loop.` Unless 'the hooked ends of the cylinder` needlesv vare kept in intimate contact with the -gu'ide plates ofy the guide structures, the hooked ends may not fully. and accurately.'l :re-`

to the lcorresponding guide plates.

ceive the yarn or the irregular 'or distorted sections thereof and the hooks may catch in the knots or take on only a part of the yarn strands. course, will result in interference with the proper operation of the needles and they may. become bent or displaced and a serious breakage and displacement of needles may-occur and tearing ofrthe fabric, a condition well known to knitters. The impor-f tant object of my invention is, therefore, to pro-vide arrangements which Awill'keep the guide plates and needles in intimate association and I accomplish this by making the guide plates yielding and. causing them to be yieldably held against the needles. As shown, each guide plate, at its upper end, isv supported by a bolt 29 which passes through a plate 30 on the rear side of the vertical part 21 of the guide structure and is engaged by a nut 31. A wing nut 32 extends through a slot 33` in the plate l3() land threads into the bracket part 21.

The bolt 29 extends through the slot 34 'in the part 2l so thatthe guide plates and the back plates 30 may be shifted or ad justed vertically. rl`he bolt 29 threads into the back plate 3() and is locked by nut 31. Between ythe head of the bolt and the guide plate is inserted a leaf spring 35, so that the connection between the bolt and the .plate is exible andthe plate may yield in radial direction relative to the needle cylinder. The ends of the spring are deiiected inwardly to rest against the plate and one end of the spring is engaged in the notch or pocket 36 to lock the spring against rotation. The guide plates of the guide structures are thus radially yieldable and are yertically adjustable. By this spring action the plates are held yieldingly against the hooked ends of the cylinder needles 14: as these needles travel past the guide plate feet. This is shown in Figures 3 and 4. Vith this arrangement, as the needles travel and are vertically raised toward their upward position ready to descend and hook the yarn, their hooks will be in close engagement with the guide plates and complete entry of the yarn, and any irregularities therein into the hooks, will follow. Should the slugs,'knots` or other uneven .sections 'be of considerable size, the yielding guide'plates will permit them to kpass through without obstruction and will thus avoid breaking of the yarn and holes inthe fabric.

By means of my invention the breakage of needles has been reducedas much as seventyfive per cent, as compared to the usual breakage in machines with the rigid This, of course, results in great saving of time and material and also assures more uniform fabric.

Having described my invention, IV claim as follows: Y

l. In a circular knitting Vmachine, the combination of the needle cylinder and vertically reciprocating needles thereon, a bracket supported abovesaid cylinder and having a yarn guide arm, a supporting plate vertically adjustable on the rear side `of said arm, a yarn guide plate reciprocable vertically along the front of said arm and secured to said supporting-plate to be adjustable therewith, the lower end of said guide plate being in front ofthe reciproeating needles and having a yarn guide Vopening therethrough through which yarn may pass to be received by the needles, and a spring anchored at its upper end to said guide plate and pressing at its lower end against said guide plate to hold it yield-y ably toward said needles whereby the engagement between said guide plates and needles will be yielding.

2. In a :knitting machine, the combination of a cylinder, needles vertically reciprocable at the periphery of said cylinder, a bracket mounted above said cylinder, a supporting plate engaging against the back of said bracket, a yarn guide plate at the front of said bracket, said. bracket having a vertical slot, a connecting member extending through said slot for lconnecting said guide plate with said supporting plate,

means for securing said supporting plate in vertical adjusted position, and a flat spring anchored intermediate its ends by said securing 'means and pressing at its ends against said guide plate whereby said plate' able whereby to vertically adjust saidguid ing plate relative to said needles, means for securing said supporting plate in V'adjusted plate to 'said supporting plate, i said supporting plate being vertically shift! position, said vguide plate having a yarn Y opening through which the yarn passes from said guiding arm to be received by the vertically reciprocating needles, and a spring engaged under the end of said bolt and pressing against said guiding plate whereby said plate may yield to abnormal pressure against it by said needles when receiving yarn therefrom.

4. In a circular knitting machine, the combination Vof a needle cylinder and needles reciprocable vertically along the periphery thereof, a yarn guide arm overhanging said l1,578,710y f4 cylinder and having a yarn guiding passageway at its upper end, a supporting plate engaging the rear side of said arm,- a yarn guiding plate engagingwthe front side of said arm and having a yarn guiding open# ing at its lower end through which the yarn may pass'to be receivedby the needles,

an interconnection between said plates7 said arm having a vertical slot through Which l0 said interconnection passes whereby Said plates may be vertically adjusted,.kmeans for locking said plates inadjusted position, and a spring held `by.said.'interconnecting means and engaging with said guiding plate to permit yield of said plate under abnormal pressure thereagainst by said needles when cooperatingftherevvith to receivev the yarn.y

In Witnessgwhereoi, I hereunto subscribe my name this 20th day of July, 1925.

i ARTHUR BYRD.

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