US1542593A - Device for transferring knitted webs - Google Patents

Description

June 16, 1925.

L. N. D. WII 'LIAMS DEVICE FOR TRANSFERRING- KNITTED WEBS Filed Feb. 23, 1925 v INVENTOR; LOU/Z5 NDZVLlZzam Patented June 16, 1925.

UNITED STATES v 1,542,593 PATENT OFFICE.

LOUIS N. D. WILLIAMS, OF OGONTZ, PENNSYLVANIA.

DEVICE FOR TRANSFERBING KNITTED WEBS.

I Application filed February 23, 1923. Serial No. 620,590.

- Devices for Transferring Knitted Webs,

of which the following 1s a specification, reference being had to the accompanying drawings. I

My invention relates to devices for transferring knitted webs useful, for example, in hosiery manufacture in transferring the ribbed tops of half hose to the needles of a footer, so that a stocking foot may be appended in integral continuation.

This application is specific to one of a number of different transfer. devices covered generally in an a plication Serial Number 620,588 filed simu taneously herewith under my name.

The main object of the present invention is to rovidea transfer device which is selfcontamed, and has incorporated means capable, after impalement of the fabricloops (which will hereinafter be referred to s mply as stitches) upon the needles of a kmttlng machine, of causing the stitches to be movedtailed description which follows of a typical embodiment of my invention; while its scope will be as readily apparent from the appended claims.

In the drawings, Figure I is a sectional view of a transfer device conveniently illustrating my invention and showing the manner in WhlCh the same is applied to the needles of a knitting machine in effecting stitch transference.

Figures II and III are similar views though fragmentary in character, showing successive sequential steps in the transfer operation.

Figure IV is a fragmentary sect onal view showing a modified embodiment of my invention; and

Figure V is a perspective view of the type of quill employed in the modification.

Refe-rring first to Figure I, it Wlll be observed that a transfer device comprises a holder 1, which, in the present instance, is

of annular or ring formfor use with a circular knitting machine, said holder having at one end a flange head 2 for supporting a. circular series of points or quills 3. These points or quills are accommodated and maintained in separation withinperipheral slots 4 of the flange head 2, and are held from displacement vertically by engagement of lateral rounded projections 5 withina circumferential groove 6 of the head 2. .The quills are retained in assemblage in the holder by spring bands 7, of which some are accommodated in the groove6 and engage notches 8 in the quills, while others engage in similar or auxiliary notches 9 in the quills, the bands urging the back edges of the quills into directv contact with the straight bottom faces of the receiving slots 4, thus normally maintaining the quills yieldingly in the true vertical position shown in Figure I. The lower or dependin ends of the quills, it will be noted, are flute as at 10 so as tobe capable of receiving the hooks of the needles 11, and that said ends are tapered as at 12 to facilitate ready initial looping of the terminal course of stitches of the fabric which is to be transferred. The quills are furthermore provided with throats or notches 13 which receive the stitches w of the web, determine the extent to which the same may be drawn upon the quills, and serve in a further capacity which will be presently ex plained.

In order that the lower ends of the quills may, subsequent to impalement be simultaneously moved laterally relative to the needle hooks to place the stitches beneath the latter, I have equipped the device with an annular cam 14 which is adapted to engage behind the rounded upper ends 15 of the quills protruding above the top of the flange head 2. The cam 14 is preferably made as a part of a sleeve 16 slidably guided upon the cylindrical holder 1 and having a cross bar 1 serviceable as a grasp for hand operation, said bar passing through slots 18 in thle holder 1, whereby the sliding motion of the sleeve is limited. I

In effecting transfer, the device is mounted upon the needle bed of the knitting machine in such manner that the knitting needles are individually received within the fluted lower ends of the quills 3 as shown in Figure I to impale the stitches upon said needles. The sleeve 16 is then depressed, by application of pressure upon the cross-bar 17, as a result of which the quills are rocked about fulcrum points afforded by the lower corners of the retaining slots 4, in opposition to the yielding action of the spring bands 7, the rojections 5 incidentally preventing vertical displ'acement of the quills. As the quill circle is thus contracted, the stitches engaged in the recesses 13 of the individual quills are thereby swung inwardly beneath the needle hooks to the position shown in Figure II of the drawings. With the parts in this position, the transfer device is bodily raised relative to the machine, thereby leaving the web with the stitches of its terminal course engaged by the needle hooks as shown in Figure III.

The modified form of my invention shown in Figure IV of the drawings is operative in precisely the same manner as the previously described embodiment and differs only in the matter of a few details which I will now proceed to describe. In this instance only one spring band 6 is employed for retainment of the uills 3 in the head 2 of the holder 1 sai spring being accommodated in a circumferential groove 8 in the head after a manner previously explained, and engaging the single notch 9 of the quills. 'I he promotions 5 of the first form are here entirely dispensed with, and for the retainment of the quills against vertical displacement during their actuation I provide at the lower end of the cam sleeve 16, a circumferential protuberance 20 with'an under-cut groove 21 adapted to receive and detain the rounded projections 22 at the top of the quills as the latter are swung to place the loops of the fabric within the needle hooks. A quill of the type shown in Figure IV may be conveniently and economically made as a die-stamping of sheet metal bent along its longitudinal center as suggested in Figure V. The channeled cross-section thus afforded lends the necessar rigidity to the quill structure even thloug comparatively thin metal be employed, thus rendering this type of quill especially useful with fine gauge knitting machines where the available space between the needles is extremely limited.

Having thus claim:

1. A device for transferring knitted webs including means adapted to be aligned with described my invention, I

the needles of a knitting machine to impale the fabric stitches upon said needles, said means being supported with capacity for lateralmovement relative to the needles to place the fabric stitches within the needle hooks.

2. A device for transferring knitted webs including means adapted to be aligned with the needles of a knitting machine to impale the abric stitches upon said needles, said mea having stitch engaging notches and supported with capacity for lateral movement relative to the needles so that the fabric stitches engaged within the notches can subsequently be shifted within the needle hooks. 4

3. A device for transferringknitted webs including a series of quills adapted to be individually aligned with the needles of a knitting machine to impale the fabric stitches upon said needles, and a holder with slots for accommodating said quills with capacity for lateral motion so that the fabric loops can subsequently be brought within the needle hooks.

4. A device for transferring knitted webs including a series of quills adapted to be individually aligned with the needles of a knitting machine to impale the fabric stitches upon said needles, a holder with slots for accommodating the quills, means for yieldingly maintaining the quills in anormal position within said slots, and means whereby the quills can subsequently be shifted from the normal to place the fabric loops within the needle hooks.

5. A device for transferring knitted webs including a series of quills adapted to be individually aligned with the needles of a knitting machine to impale the fabric stitches upon said needles, a. holder wit-h slots for accommodating the quills, and means for preventing vertical displacement of the quills in their respective slots yet permitting lateral motion thereof so that the fabric stitches can be subsequently placed within the needle hooks.

6. A device for transferring knitted webs including a series of quills adapted to be individually aligned with the needles of a knitting machine to impale the fabric stitches upon said needles, a holder with slots for accommodating the quills, means whereby the quills can be subsequently shifted laterally within their slots to place the fabric loops within the needle hooks, and lateral projections formed on the quills and engaging a groove in the holder to prevent vertical displacement of the quills incidentally-co the shiftin aforesaid.

7. A device for trans erring knitted webs including a series of quills adapted to be individually aligned with the needles of a knitting machine to impale the fabric stitches upon said needles, a holder affording fulcrums about which the quills may be rocked, and a cam movable relative to the holder for actuating the quills to shift the fabric stitches within the needle hooks.

8. A device for transferring knitted webs including a circular series of quills adapted to be aligned individually with the needles of a knitting machine to impale the fabric stitches upon them, an annular holder with slots for accommodating the quills, lateral projections formed on said quills for engaging a circumferential groove of the holder to prevent vertical displacement of the quills, a spring band disposed within the groove and en aging the quills to retain them in their s ots, and an annular wedge cam slidable on the holder whereby the quills may, subsequent to impalement, be rocked within thelr grooves to place the fabric stitches within the needle hooks.

9. A device for'transferring knitted webs including a circular series of uills adapted to be individually alignedwit the needles stitches within the needle hooks.

In testimony whereof, I have hereunto signed my Vania, this 14th day of February 1923.

LOUIS N. D. WILLIAMS.

I Witnesses:

7 JAMES H. BELL,

E. L. FULLERTON.

name at Philadelphia, Pennsyl- 20

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