US1026175A - Yarn-feeding device for knitting-machines. - Google Patents

Description

AK M, IGEOP'J,

YARN FHED'NG DEVICE FR KNETTNG MACUNES.

Arrmmos Mmm NovA aV wia 1,026,175, Patented May 14, 1922.

3 SHEETS-SHEET L A. M. PIGEON. YARN FEEDING DEVICE FOR KNITTING MACHINES.

APPLlGATlON FILED NOV. 8, 1910y 1,026,175. Patented May 14, 1912.

3 SHEETS-SHEET Z.

INVENTOR: /lber JW. Pigeon,

A. M. PIGEON.

YARN FBEDING DEVICE FOR KNITTlNG MACBINBS.

APPLICATION FILED NOV. 8, 1910` 1,026,175. Patented May 14, 1912.

3 SHEETS ASHEET WITNESSESI INVENTOR:

fg M/ bel-@M Pigeon, @Md/gw Z i applicable to machines when the machine vthe sliding carrier which controls the feedlreceive and guide the PATENT 'lflijll@ ALBERT M. PIGEN, OF PHILADELPHIA, PENNSYLVANA.

YARNAFEEDING DEVICE FOB KNITTING-MACHINES.

Specification of Letters Patent.

Original application iled September 19, 1908, Serial November 8, 19] e.

Patented Eloy 14, Ti SH2. No. 453.774. Divided an?A this application filed Serial No. .$551,265.

To all whom-15 may Concern l Be it known that I, Annen" M. Pinson. of Philadelphia, in the county of Philadelphia i and State of Pennsylvania, have inventedl certain new and useful Improvements inl YarnFeeding Devices for Knitting-Mw l cliines, whereof the following is a specilication, reference being had to the accompanying drawings. l

My invention relates to knitting nxal chines ,employing independently movable needles. l have illustrated it in connection l with means for independently actuating spring heard needles and also beard presser-s, l with which they are associated. Said parts are combined to perform the operation olf tubular knitting, with capacity for the insertion of heel and toe pockets as usually! practised in stocking knittcrs.

n its general aspect my machine has' been described in the specification and i shown in the drawings of Letters Patent of i the United States No. 943,230, granted to me I under date of December 14th, 1909 for iinprovements in knitting machines, from l which this case hasbeendivided, by virtue of a requirement for division.

The invention specially described and claimed herein relates more particularly to the thread feeding mechanism and the means provided for controlling the same. It is of diiferent types. It is characteristic of my invention that.

organized to perform i the operation known us fasl'iioning, in which a constantly varying series of needles g is raised to the idle level, the position and l operation of the thread feeding device is] controlled by the needles themselves, so that its operation becomes dependent upon the successive positions of the end needles of the series.

In the accompanying drawings, Figure l, is a plan View of av portion of a circular knittr conveniently illustrating my invention. Fig. II, is a vertical sectional view taken on the line Il, Il, in Fig. I. Fig. IH,

a partial elevation of the machine looklng from the upper right hand corner of Fig. Fig. IV', is a perspective view of ing of the thread to The machine shown in the several figures comprises a bed plate l, having an annular groove or depression 2, which is adapted to the needles.

lower toothed peiiiilliery 2l. ofthe Acani cylinder i, whose cn an; zzctuate the needles in 'i well known munner. The cuni cylinder 4, is held in place h v a ring 5, and rotated within thexhed l, Jy :i suitable pinion which engages itstoothcd periphery and is of ordinary construction. and therefore not shown in the drawings.

A needle cylinder l0, is nnninted on plaie l, in stationary relation tliercto,.;ilhin the camv cylinder 4, and is provided with torti` cal circunit'erential grooves ll, within which the needles l?, operate, under the influence oi yth(` knitting cams nirendy mentioned. The needles here shown are of the spring heard type, -liut inv invention equally ap plirable to machines in which the latch type of needles are used.

To the top of the needle cylinder it), is secured an annular plate l5, comprising 'rn-- dial grooves lt, in which the `'inlers i7, operate. under the influence of cams carried by the annular ringr 1S. which snrinouuts the plate 15, and is rotated in unison with the cum cylinder i. by reason ol the engage ment of its lng` li). il). with the carried by the said cam cylinder 4.

A beard presser cani ring 25, rotatably secured to the 'depending annular flange fill, of plate l5, by means of angle pieces 27, whose later-el arms engage a peripheral groove 2S, in the said flange 26, as shown in Fig. lil. The said rine is also rotated in son with the cam luder hy means of its adjustable angle luy-rI Ql. and 3U. which engage the bracket 20. :il ,indy mentioned. The spacing of there lugs 30. ou the periph ery of the ring "2li, permits of shitting or" the presser cams relative to the stitch form ing cams on cylinder el, which is necessary only during oscillatory knitting. The cams carried by the ringQ, control the motion of the beard presser-s 31, which are received together with the needles l2, in the grooves ll, in cylinder l0.

The sinker cani plete 18, carries a tension device, which effects the sinker operating cams nud comprises e. ,:vivoted level-35, whose action is under the control of a 'roller com 36.

The parts thus for explained forni no part of the present invention, and are more fully described in my previous patent above mentioned and in my co-pendmg application Serial No. 522,239, tiled October Qth, i909.

lbracket 20,

a bracket 51, which is secured to the outer periphery of the sinker cam ring 18, and supports an inclined arm 52, carrying at its outer end a thread eye 53, which normally depends into the depression formed by the retraction of the sinkers il", as shown yat 55, in llig` Il, subject to the pressure of a spring 56, which engages the arm and keeps the yoke 50, in engagement with a stop 57, adjustably seciired to the upper face of the earn ring 18. The yoke 50, also comprises an upwardlyextending curved piece 59, whose depending extremity supports a curved l'cross arm'fO, of which the curvature is concentric with the center of the machine. The lower edge of the arm 60, is recessed at 6l, thus forming shoulders, which are adapted to be engaged\by the rearwardly extending finger 62, on a sliding carriage 6,3, as will he more fully explained. The carriage 623, provided at its ends with laterally extending aps or wings 65, and 166, which are adapted to slide freely under the limitations ot the adjustable collars 67, and (SS, respectively, on a curved guide wire 69, which is supported at its ends in brackets 70, secured to the top of cam plate i8. The carriage 63, tprther comprises at 'its bottom horizontally extending arms 7l., and T2, which are rounded to conform with the mirvatnre of the needles against which they normally rest as shown in Fig. Il, subject to the tension of springs 73, and 74, which are respectively secured at their outer ends to upwardly extending wire arms 75, and 76, carried by the presser cam jecting iap 77, on the said carirage 68. The curved arms 71, and/72, extend from a horizontal conter plate S0, which projects laterally and inwardly from" thedepending arm 8]., of carriage 68, and is provided with inclined cam. edges S2.. The late 80, normally extends into the space a Vorded by the descent of the needles shown at 83, in

Fig. Il, and is there" re not engaged byy them during circular* nitting, and hence performs no function/during that time. The collars 67, and 68, on 'the wire guide 69, are spaced so that the plate SO, Awill always project into the space occasioned in the needles by the action of the stitctfcams regardless of direction of rotation. This space shifts from one side to the other Witn respect to the center cam during csciliatcry knitting, hence one of the collars eiiiective in one direction of rotation and the other in the oppositie direction, therefore plate SC', is always maintained in proper position with-relation to the needles no matter whnt the direction ot rotation.

it will be deemed g i behavior ot the only dni-ing; o45' ployed when ta;

escribe the :e machine ern- .tancc between its lugeI 29,

l lower edge of the cross ring 25, landata their inner ends'to `the pref t series 'of needles,

since their position during circular knitting is clearly illustrated in ,the drawings and fully explained herein hy the foregoing description. Y

During the course of circular knitting which immediately precedes the first course of oscillation, certain consecutive needles are thrown up to their idle level by suitable cams not shown in the drawings, but of well known construction. These needles form the so-called idle series. When the carriage 63, has advanced in the direction of the arrow in Fig. 1', under the positive drive of collar 68, to the end needle of the idle series, the nearest of the cam edges 82, on the plate 80, is engaged by it, thus causing the finger 62, to engage Jxhe curved arm 60, on the end of the piece 59, secured to the. pivoted yoke 50. The thread eye is thereby lifted so as to Withdraw the thread from proximity to the needles during the remainder of this-course. This not only prevents the thread from being improperly engaged by any oit the operating parts, but also assists in taking op its slack. As soon as the machine begins tc .rotate in the opposite direetion, the presser cam ring remains sta-- tionary for a. short interval, due to the disand 30, which is necessary' to allow the shifting of its cams to their proper position relative tothe stitch cams for that direction of rota-tion. During this interval the carriage 63, also remains stationary in its raised position until its linger 62, encounter vhe recess 61, in the ieee 60, whereupon one of its engaging shou ders causes the said carriage to be carried with the moving cross arm 6G, and determines the proper. position at which the thread is to he fed when thev first needlewif the active series is reached. lt will be seen that the carriage 63, is now under the influence of neither of the collars 67, or 68, but is positively drivenpby engagethe recess of the cross piece 60, as above stated, and that this engagement is maintained by the tension of a spring T3, created by the further relative shifting of the wie tion between the presser cam ring y sinker cam plate 18, After thebraclmtl, reaches the angle ings 30, the ring 25, is positively driven 'until the direction of motion is again reversed. As soon as late 30, has passed the end needle of the id e series, it drops back to its normal posit-ion with its extensions 71, and 72, gliding along the Shanks of the higher needles. This occasions the disengagement of. the finger 62, with the. shoulder of the recess in the cross piece 60, thus permitting the thread eye to drop into its normal place to feed the active By reason of the tension spring 73, the carriage 63, remains mol inentarily .stationary until it is reached by 25, and

yment )of its finger 62, with the shoulder in 11e the collar 67, which then acts as a positive drive for that direction of rotation of the machine. During widening and narrowing for the knitting of the heel and toc, the idle\ needles are constantly changing in number and the feeding position of the thread is absolutely controlled by the needles'themselves through the mechanism which I have thus described.

Having thus described my invention` I. claim: A

1. In a knitting machine, the combination of a series of independently movable needles, means for moving certain of said needles to a diiferent level to render the same idle, a thread feeding device, and means coperating with the end needles of the idle series for moving the thread feeding device away from the needles.

2. In a circular knitting machine, the combination of two complementary series of needles a-t different levels; a thread feeding device; means coiiperating with the end needles of one of the series for drawing the thread away from the needles; and means cooperating with said first mentioned means for placing the thread in feeding position, during reciproeatory knitting.

3. In a knitting machine, the combination of a series of independently movable needles,

.signed my name at. Philadelphia,

means for supporting and oscillating saidV ing position upon the reversal of the direetion of movement of the machine.

4. In a knitting machine, the combination of a series of independently movable needles, sinkers having yarn engaging portions eooperating with each needle, means for moving certain of said needles to a dierent level to render the same idle, a thread feeding de' vice, and means coperatin withfthe end needles in the idle series or moving the thread feeding deviceW away from the idle needles and sinlcers coperating therewith.

ln testimony whereof, I have hereunto i Pennsylvania, this tiftlvday of November 1910.

y AALBERT M. PIGEON. Witnesses:

JAMES H. BELL, E. L. FULLnRToN.

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