US201629A - Improvement in yarn-delivery attachments for knitting-machines - Google Patents

Description

A. PAUL. l Yarn Delivery Attachment for Knitting Machines.

10.201,629. Paten-fed` March,26,`18.7s-.

FIG- 3 F'IG- l.

VEN TOR @ma m l/v/TN'ESSES: I Q c L N. PETERS. PNDTO-LITMUGRAPHEH. WASHINGTON, D C. i

To all whom it may concern:

Nin bythe [UNITED TAT PATR f OF F I CR.

ARCHIBALD PAUL, Vor oononsfnnw YORK, AssIeNoR Yon ONE-HALF Ris Y RIGHT Tof oAMPRELna CLUTE, ORsAMR PLAGE.

` IMPROVEMENT'INYARNQDELNIRY*ATTACRMINIS FoRKNuilNc-MACHINIS.

` Specification forming part of IiettersPatent No.12;( )1,u629 `dated March-26:, 1 878 application `filed "I January 22,187lA Beit known that I, ARCHIBALD PAUL, of

the city of `Cohoes, in the county of Albany/1 and lState ofl New York, have invented cerf tain Improvements inYarn-Delivery Attach-1 ments for Knitting-Machines, of which-the, followingis a specication, reference being "had to the accompanying drawing. j Inusing a knitting-machine which drawsl `the yarn rapidly from a stationary V'c zonical Ybobbin around and along the stem thereof, ini the usual manner, the yarn is liable to often wrap around and bind againsttlie stem of the, bobbin, and thereby produce great anduneven tension on theyarn, and `sometimes cause the breaking of thelatter whenit is fine orten-` f'der vand atl the same time thejdrawing off of:

4"each turn of yarn from the bobbin increases*` or lessens the twist in the yarn oneturn, and" vthereby alters the yarn, and makes it more, `4 liable-to kink between the bobbin and'the needles of the knitting-machine, and to curlY and get out of the needles'when placed theres inker-burr or other yarn-feeding de-g vice.

A4.To avoid or `lessen those defects is the principal object of the primary part of this in vention, which consists in the combination, with a knitting-machine, of mechanism for` supporting a conical'bobbin and connecting it with the knitting-machine, whereby the bobbin is caused to revolve about its own axis at a speed somewhere near, and in a direction contrary to, that in which the yarn is unwound from the bobbin in being drawn therefrom by the knitting-machine.

A further part of this invention consists in the combination, with a knitting-machine, of a support constructed and connected with the knitting-machine substantially as hereinafter described, whereby said support is adapted to hold a conical bobbin and revolve it about its own axis.

In the aforesaid drawing, Figure l is a per spective view of a portion of a knitting-machine having one form of this invention conibined therewith; Fig. 2, an elevation of a part of the same5-Fig. 3an elevation, partly in section, and on a larger scale, representing the bobbin-supports and bobbins shown in i 1' 'Figfnfandother bobbin-supportSCOIlHeated therewitlnfand all adapted for supplying yarn jto an ordinary 'circular-knittin g machine having" four yarn-feeding devices; and Fig. 4 is a Vplan ofl the top of' one of the same bobbins, withflines partiallyindicating `the ordinary spiral winding of the yarn thereon. f `A is the needle-cylinder of an ordinary cir- 'culfar-knitting machine, having the supporting-'frame Z, and B lB are the usual ,sinker- `burrs for feeding .the yarn into the needles.

,The conical bobbins C` are wound with yarn, l/,tlie same as usual for supplying yarn there- Vfrom to knitting machines. Guides d, arranged about in line with the stems e ofthe bobbins, serve to properly direct the yarn as `itis drawn o along the stems ofthe bobbins, l"and other guides, f, conduct the yarnto the "sinker-burrs, all substantially as in .knittingmachines heretofore used.

Each conical bobbin C is mounted on a support, F or'F/,with or upon which the bobbin 4can be revolved concel'itrically, or nearly so, Vtotllefstem of the bobbin. Grjis agear-wheel fast on the shaft of the Ineedle-cylinder, and engaged with a gearwheel, H, 'fast on the rotary shaft I 5 andJ is a belt, which extends around a pulley, K, fast `on the shaft I, and arounda pulley, Z, on one "of the bobbin-'supports F, and also around intermediate guide-pulleys m m', and a belt, n, extends around pulleys o o', fast on the first and second rotary bobbin-supports, respectively. By thus connecting the knitting-machine with the bobbin-supports F the latter, with the conical bobbins thereon, will be revolved, andalso stopped and started, simultaneously with the needle-cylinder of theknitting-machine.

To indicate a mode of applying this invention to an ordinary large circular-knitting machine having four sets of yarn-feeding and knitting devices, and to illustrate modifications of this invention, I have in Fig. 3 shown a third rotary bobbin-support, with a belt, p, extending around a pulley, q, fast on the second bobbin-support, and around a pulley, g', on the third one, and have also shown afourth bobbin-support, F', which is stationary, and has a seat, r, stem r1, and anti-friction washer fr?, and thereon a conical bobbin, having a pulley-groove, s, in and around its base part, .with a belt, s1, extending around th at pulley-groove, and around a grooved pulley, s2, on the third bobbin-support, so that suitable conical bobbins on the third and fourth supports will be revolved, and stopped and started simultaneously with the bobbin on the second support.

The spiral manner in which the yarn is commonly Wound to and fro on the cone of the bobbin is partially indicated by the spiral lines at t in Figs. 1, 2, and 4; and it will be observed that the mechanism hereinbefore specified, and shown in the drawing, for supporting the bobbins and connecting them with the knitting-machine is so constructed and arranged as to turn the bobbins about their axes in the direction pointed by the arrows u, which `direction is contrary or opposite to the direction in which the yarn is unwound from the bobbins in being drawn ott' along `the stems thereof by the knitting-machine. I commonly prefer to have each bobbin thus revolved at a uniform medium speed somewhat faster than the yarn is unwound while being drawn oft' by the knitting-machine from the largest circum- Vference of the cone of the bobbin, and somewhat slower than the yarn is unwound while being thus drawn oft' from the smallest `circumference of the bobbin next to its stem; but the speed of the bobbin cank be considerably greater or l'ess than athat preferred rate,

and still be of much advantage in preventing or lessening the twisting or untwisting of the yarn and its liability to bind around the bobi bin-stem in being drawn off from the bobbin( by the knitting-machine. y

In case the lyarn shall be wound'on the boblbins in the opposite direction to that indicated in Figs. 1, 2, and 3, the belt J should be quar- :i ter-twisted in the opposite direction from that 5 shown in Figs. 1 and 2, between the pulleys l, and m mf, so as to then cause the bobbins to revolve in the direction contrary -to that indi- 'cated by the arrows u.

In carrying out the principal part of this: invention any suitable known knitting-mat chines and conical. bobbins are v` to be used, and each conical bobbin is to be vmounted on any suitable support, by, with, or upon which the bobbin can be easily revolved about its own axis; and the same is to be connected with any suitable lpart of the knitting-machine by any suitable known kind of gearing, belting, or equivalent means for communicating from the knitting-machine or its driving mechanism tol the bobbin the proper rotary motion about its own axis. I, however, cornmonly prefer to mount each conical bobbin, that has in its base part a central tubular socket, o, upona rotary support, F,having a seat, w, and stem fw', concentric with the axis .fr of the rotary support, and thus adapted to hold and revolve the conical bobbin, substantially as shown in Fig. 3; and I generally pre.Y

fer to connect such rotary support with 'the knitting-machine by means of gearing and round or fiat belts and pulleys, essentially as shown in the drawing, or by equivalent rotating devices. What I claim as my invention is -i 1. In combination with a knitting-machine, mechanism, substantially as described, for supporting a conical bobbin and connecting it with the knitting-machine, whereby said bobbinis revolved vabout its own axis in ladirection contrary tothat in which theyarn is n nwound from the bobbin in being drawn off along the stem of the bobbin by the knitting.- machine, as set forth.

2.v In combination with a knitting-machine, the support F, connected with the knittingmachine by mechanism substantially'as described, whereby said support is adapted to hold and revolve a conical bobbin, C, about its own axis, as set forth. l

f In testimony whereof l I hereunto setVv 'my hand, in the presence of two subscribing wit;-

nesses, this 18th day of January, 1878.

` ARCHIBALDl PAUL.

Witnesses:

IsAAc CLUTE, JOHN B. SWARTZ.

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