US973236A - Automatic rib-knitting machine. - Google Patents

Description

H. B. TAYLOR. AUTOMATIC RIB KNITTING MACHINE. APPLIQATIOH'I'ILEP JULY 14, 1908.

' 973,236. Patented Oct. 18,1910.

- FIG I; Y

WITNE sEs:

' mvsm-ronz- 1151mm 0. M2204 UNITED STATES Pia TENT OFFICE.-

HERBERT B. TAYLOR, OF PHILADELPHIA, PENNSYLVANIA, .ASSIGNOR F ONE-HALE TO JAMES TAYLOR, OF- PHILADELPHIA, PENNSYLVANIA.

ofthe city offhiladelhia, county of Philm, delphia, and Sta'te ofgenhsylvania, have invented. certain newf. and useful Improvements-in 'Aiitom atic Rib Knitting Machines,

0f w-hidi the is a specification.

. My invention'rela-tes to circular rib knitting machines of construction and consists in certain 1mprovements therein,

hereinafter fully described, which provide for -the automatic: and simultaneous control I t y of t fijs i 'chcarnof {rhe -cam cylinder by which the stitch tormed by the ver tical needles may be lengthened, but also of a cam of the can i plate by which 'the'radia-l needles'areoperated, which are thus made to icotiperate in th eformation of a loose course construction, itwill-be understood that the so cam cylinder-,=which.;is provided with means theneedlesot an of accomplishment than in prior machines.

winch; renders the, transter-M the. work to r -cylinder ."mol'e ,easy

In the drawings, Figure I, is a plan view 'ofthe camboxand accompanying parts of an? atomatic ri'b .sknitter .of standard construction embodying improvements. ig. II, is an e'levatipn'ofthe same. I

Referring' briefly at; first to those parts common to automatic ribf knit-ters of this for accomplishing its. rotation, incloses a stationary.needle'cylinder v-(not'seen .in the cam. In order to effect a temporary depres drawings) provided with-vertically movable needles; Motin-ted upon the camfcylinder arethe standardsi2,91,- carrying the yoke 3,

frfomj-which idepentls the dial cam plate 4, which is thus rotated simultaneously With the cam cylinder. -Beneath.the dialcam plate the ,onaryx-dial 5', provided with radially morablen needles -'whicln cooperate with. tl 'e-'vertical. needles 0 the needle cy1 inder for the 'piodiiction o rib knitting.

Still describing that which -;.is old in the art, it'will be underst'ooditliat the cam cylinder is provided with the. usual knitting ca'ms, including; a stitch cam, which is vertically adjustable to vary the lengtlrof the stitch produced. This stitch cam is connected to a vertical rod 8, which'is upwardly spring-pressed and provided 'upon its upper end with the bevel or cam 9, the position 'of this rod 8 thus serving to 'ad]ust the stitch sion of the rod 8 and therefore of the stitch 55, cam "for the. production of a loose course,

Be't known-tha' I HERBEIiT B. TAYLOR,

, dial needles.

AUTOMATIC BIB-KNITTING MACHINE.

: h s pecification of Letteis Patent. Patented Oct, 18, 1910. Za ncatioh' filed July 14, 1908. Serial No. 443,418.

there is provided a vertically movablepost 10, seated in the bed, late of-the' machine,

the vertical position '0' whichis determined bylinks upon a pattern'chain not shown.-

On the upper end of thispost is a large'disk 11. W'hen the disk 11 is liftedsto the proper level, the rotation of the cam cylinder brings into contact with ita projecting-arm 13, fastupon a vertical shaft 14, carrled within the cam cylinder and provided with a segmental gear 15, which meshes with a se mental gear-l6, on a second vertical-shaft l also mounted in the cam cylinder, and upon which is fixed a projecting arm 18, on a level slightly above that of the arm 13 upon the shaft 14. The shaft 17, further carries the arm 20, provided at *itsupper extremity with an adjustable screw 21,- the lower end of which when adjusted to the proper level will come into contact-with the. cam surface 9, on the upper end of the rod 8, and depress it against the tension of th SPringwhich permanently tends to maintainit in the raised position in which it is shown. By'th-e cooperation of these parts when the-disk 11. is raised so that it strikes the arm 13, the shafts 14, and 17, arerotatedso as to effect the depression of the rod 'f i, and the corre -sponding lengthening of the stitch produced by the vertical needles,"u nt-il a. further-alteration in the level of the disk' l'l, occurs,

after one or more courses have been knityhy which the disk is put in pos tion to strike the arm 1.8, and reverse the pos'i'tioncit-the parts described to their original positionyagain restoring the stitch tojits normal length;

To the parts thus described my'imfention adds the function of 'jsimultaneo'u'sly lengthening the stitch which is ptodiiced-jbythe This is accomplished'by the following mechanism: dial camj plate is -"rov1 d'ed with thejtil fillfll. amsj, among i which is the. pivoted stitchicam mains a draw cam o crating to return the dial needles which ave f projected, the I projecting cam 31,to theirnorm-alpo's-ltion.

According as this draw cam 30, is movedupon its pivot so that its free end is nearer or farther from the axis of thedial, will despend the distance to which the dial needles are withdrawn after being pro ected by the cam 31. This draw. cam 30, is shown in- Fig. I in its normal position to withdraw the dial I'lEbxAlES the proper distance for the production of an ordinary'stitch, but it is An extensible link 34, engages this pin at one endQWhile its farther end is pivoted to a post 35, set upon the arm-20.v The connection of this link 34, with the pin 33, is a slotted one, whereby a certain amount of motion is lost before the movement of the arm 20'drives in the draw cam The extension of the link 34, for the 'pur ose of accurately adjusting the extent to which the motion of the arm'34 moves the draw cam, is accomplished by forming the'link of two parts maintained in line the screw 36, the connection in one of the parts being a slotted one .for purposes of adjustment. By thecooperation'of the parts thus described, when the disk 11, coming into contact with vthe arm 13, act-uates the arm 20, so'as to depress the stitch cam and lengthen the stitch produced by the cylinder needles, it simult-ane ously throws the free end of the draw cam 30, inwardly toward the axis-of the machine, increasing the extent to which the dial needles are withdrawn after therformation of. their-stitches, thereby likewise lengthening the stitches, and thus producing one or more loose courses ,in which the knitting is.

or a more open. formation than that produced by the hitherto usually employed mechanism, by which the loose course is pro-- duced' by the operation of cylinder needles only. The knitting oi the loose course or courses thus produced will continue until the contact of the disk with the arm 18 reverses the position of tl'ie partssimultane .ously restoring both the stitch cam of the 40 cam cylinder and the draw cam of the dial to their normal, stitch forming position. The post 10 carries another smaller'disk 12, which may be raised to operate cam. arms which control the stitch cam for the dial needles for the production of'welt courses, but although these parts. are shown on the drawing,' ny invention does notdirectly concern them and therefore they 'are not here described, being of known construction.

I do not limit myself to the particular means, by which operative connection is established between the cams of the cam cylcams coiiperateiin-the formation of a loose. course.

said bevel head", and means-for ro'cking said press the stitch tam to lengthen,

ously operates'the draw cam, so; that b'oth said cains simultaneously cooperate in the -production of a loose course.

inderand'thoseofthe dialjeam for simultaneously operating both in the'production ofa loose course, as other connectingmeans 5:

may be'em'ployed, 7 Having thus my; invention, I claim:

1. In a ribknittegthe combination of the cam cylinder and dial plate each provided With stitch cams; means :for alteringthe position of one-of the stitch cams of the cyllnder for the production of a loose course; means for altering the position of one of-the stitch cams-of the dial to cooperate for the same purpose; and connections whereby the operation of one of said cams simultaneously controls the operation of the other.

" 2. In a rib knitter the combination of the provided with a movable draw cam, \vithconnections to the meanswhi'ch operate the stitch cam of the cam cylinderb -Wh'ich the depression of the stitch cam'of t e cam cylinder. occasions simultaneous movement of the draw cam-of dial plate, whereby both 3. In a rib knitterthe combination of cam cylinder; means for depressing its stitch cain' comprising a rod with a bevel head, a rocking arm which; contacts with arm under the,autojm' tic op'eration of the -machine; a dial plate prpvided with a, mov

able draw cam; and a link connecting said draw cam with the rocking arm, whereby the rocking of the grin to abndrmall'y de-I the stitch formed by the. cylinder 4 needlesv simultane- In testimony whereof; I haveih'ereuntosigned my name, at Pliila-d el liia, Penns ly f avania, this thirteenth day of uly 1908;

HERBERT B. TAYLOR-.- j

lVit nessIes:v

J MES H. BELL,

E. L. Fonnnnrox.

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