US2042146A - Milanese warp knitting machine - Google Patents

Description

May 26, 1936. w. DEAKIN 2,

MILANESE WARP KNITTING MACHINE Filed Feb. 23. 1955 4 Sheets-Sheet 1 I I I I N W/W //////////////L INVENTOR \A/i i l i am DeaKin y 6,1936. w DEAKm, 2, 42,146

MILNESE WARP KNITTING MACHINE Filed Feb. 23, 1933 4 sheets-s eet 2 INVENTCR Wil Ii arn- DEaKi ATTORNEY May 26, 1936. w. DEAKIN 2,042,146-

' MILANESE WARP KNITTING momma Filed Feb. 23, 1933 4 Sheets-Sheet 5 INVENTOR' William DEaKin Y" ATTORNEY May 26, 1936. w. DEAKIN 46 MILANESEWARP KNITTING MACHINE Filed Feb. 2;, 19:53 4 sheets-sheet?! W r x v INVENTOR ATTORNEY I Patented May 26,

UNITED STATES? PATENT ori ice V MILANESE WARP KNITTING MACHINE William Deakiu, Brooklyn, N. Y., assignor to Julius Kayser & 00., New York, i

Application retinal-y as, 1933, Serial No. agent 30laims.,(Cl.66-86) v This invention relates to a Milanese warp-knit ting machine of the. type in which two sets of warp threads are moved in opposite directions in m such manner that each thread'xtends from one selvage to the other and crosses the threads travelling in the opposite direction, each setof warp threads being .fed over a rail-one over an upper rail and the other over a lower rail-while, at the rail ends at the sides of the machine, the threads 0 at one side are successively lowered'from the upper to the lower rail while at the opposite side the threads are successively raised from the lower to the upper rail. In this type of machine the beams carrying thewarp threads are usually in the form of bobbins mounted under the machine on an endless chain which moves slowly in time with the shifting of the threads on the rails.

In machines for producing Milanese fabrics of the character above described, satisfactory selvage edges can be. produced only withwcrtain kinds of yarn while with yarn of other kinds the selvages are ragged, irregular'and unsatisfactory.

One object of the present invention is to provide, in a machine of the above type, means for reinforcing the selvage edgesof the fabric.

Another object of this invention is 'to provide.

means for feeding to the needles or to certain of. the needles of the machine additional or auxiliary yarn threads at the selvages or at other points throughout the width of the fabric; these additionalthr'eads being shifted sidewise over a definite number of needles in one direction and then in the opposite direction while the main warp threads travel continuously in the well:

known manner above referred to and the additional threads are thus inter-knitted. with the usual warp threads. A still further object of my invention is to provide means whereby the aux- 4 iliary or additional-threads may. be fed to the needles by feed mechanism adapted to move transversely within definite limits across the width of the fabric, in both directions, and in proper timed relation to the operation of the ma- 5 chine to provide in the finished fabric reinforc ing or ornamenting lines o stripes- .extending at an angle to the selvage edges so as to produce diagonal lines and so as to produce diamond or other shaped outlines.

5o with these and other objects view, my invention consists in the novel construction and arrangements! parts hereinafter described with reference to the accompanying drawings, and particularly pointed out in the appended" claims,

55 it being understood that various changes may be made without departing from the spirit of the invention or ,sacrificing any of the advantages thereof.

In the drawings Fig.1 is a-sectionalsomewhat diagrammatic view showing the essential parts of a Milanese warp-knitting machine having ap- 5 v plied thereto' an attachment according to the present invention; Fig. 2 is an enlarged front view of the attachment for feeding additional yarn at one selvage of the Milanese fabric; Fig. 3 1o is a cross section of the same taken on the line v 3l-3 Fig. 2; Fig. i is a view looking on the right hand end of Fig. 2 and showing the yarn carriers;

.Fig. 5 is a diagrammatic front view showing an is an enlarged front view partly in section showing the left hand portion of the additional yarn feeding mechanism of Fig. 6; Fig. 9-is a plan view of the same partly in section; Fig. 10 is a. cross sectional view, taken on the line Ill-l0 Fig. 9, and Figs. 11', 12 and 13 are enlarged views showing somewhat diagramma' three fragnients of Milanese fabrics; Fig. 11 showing an ordinary Milanese fabric with a special stripe or 30 reinforcement at'the selvage; Fig. 12 showing a similar fabric with aselvage reinforcement and with straight reinforcing or ornamenting lines or stripes at intervals in the width of the fabric, and Fig. '13 showing a Milanese fabric having zigzag lines forming a diamondpattem.

Referring particularly to Figl l the upper rail or top tier bar I5 forms a part oftheusual "ladder" ll which comprises also a rear bar l6,

and over these bars l5, It the warp threads i1 are continuouslyfed froma series of warp beams or bobbins III in the manner well known in the knitting of Milanese fabrics, and at the same tim e the warp threads iii are fed from the travelling beams or bobbins 20 over the low rail or bottom tier bar" 2 I. The individual threads of the upper set I! 'and' those of the lower set is are manipulated by grooved'transger points 22 and grooved still-bar points 23 and by take-up points 24,-.all

of which are actuated in the well known manner,

the tips of the points 22 being caused to engage the grooves of the points 23 and being raised and.

lowered and being also moved sidewise, the

of the points 23 being" caused to engage the grooves of the points 22 and. being raised and lowered and the points 24 being raised and lowered and being also swung towards the points 23 and towards the usual sinkers 25 which latter areraised and lowered improper timed relation to the outward and inward movement of the needles 26 and to the movement of the needle presser bar 21 and the fabric pressing bar 28, all in the manner well known in the operation of Milanese warp-knitting machines.

While the yarn threads l1, l9 are thus fed to the needles 26 and are moved continuously in opposite directions, auxiliary or extra threads 29 are fed from guide eyes 39 from guides 3| from around guide pins 32 from bobbins 33 (see also Figs. 2, 3 and 4).

Mounted on each side frame of the machine near the selvage of the fabric being produced is a bracket carrying the bobbin 33'and having 39 in tension between the bracket 35 and a collar 40 thereon, it is periodically moved towards the "right by engagement with the side face, on a cam 4i carried by a shaft 42 which may be driven through the medium of a sprocket wheel 43 (Fig. 3) or in other suitable or convenient manner from the main cam shaft of the machine ,so that the guides 39 feeding the threads 29 to the needle 26 are moved sidewise in' properly timed relation to'the operation of the points 22, 23, 24 and of the other parts of the knitting mechanism so that the threads 29 are thrown to one side of the needle or to the other to form the loops or stitches and to knit the auxiliary or extra thread into the fabric at the selvage, or-as hereinafter described-at other points in the width of the fabric.

The-knitted fabric shown at Fig. 11 consists of ordinary Milanese fabric 5| with a selvage reinforcing stripe 52, such as could be produced by the attachment above described. Fig. 12 shows an ordinary Milanese fabric 53, having a selvage reinforcing stripe 54, and having additional reinforcing or ornamental stripes 55 at intervals in the width of the fabric.

The yarn feeding mechanismshown in Fig. 5 comprises a cross bar 44 extending from side to side of the machine and carriedbetween brackets 45, 46 mounted on the side frames of the Milanese machine and this bar 44 is engaged at each of its ends by a cam 41 so shaped as to cause the bar to reciprocate in the manner required to lay the extra threads above the usual warp threads supplied in the'usual manner. The cross bar 44 carries at intervals throughout its length a number of thread guiding members 43 each of which receive a single thread or a group of threads from a thread supplying bobbin 49 carried on a cross bar or frame 59 mounted on and extending between the upper parts of the brackets 45, 46, and in this manner longitudinal stripes may be formed at the selvages or at any pointsthroughout the width of the fabric as shown particularly at ranged alternately between zig-zag stripes 51 in,

such manner that the points'of adjacent zig-zags meet each other at a common. point 53 to propattern shown at warp bobbins 60 of the usual Milanese machine, '5'

while a series of bobbins 6| 'are mounted on brackets 62, all carriedon a cross bar 63 extending between recesses 64 in brackets 65 mounted on the side frames of the Milanese machine, the brackets 62 being removably mounted on the cross bar'63 so that they may be located at desired positions throughout the width of the web of fabric being produced by the Milanese ma: chine. The brackets 65 on the side frames of the machine also support the ends of parallel rods 66, 61 each of which has secured at intervals thereon a series of thread guides 68, having at their lower extremities guide eyes 69 for guiding the threads from the bobbins 6| to the needles of the machine, and additional guide eyes 10, H arepro- '20 vided between the eyes 59 and the bobbins 6 I,. At each side of the machine, the ends of the rods 66, 61 are engaged by the face of a cam 12 which is carried on a spindle 13 mounted between bearings l4, on the bracket 65, and secured to this cam I2 is a ratchet wheel- I6 to which step-bystep motion in one direction-is imparted by a pawl 11 which latter is mounted on the free end of an arm 16 free to rock on the spindle 13. The

arm 18 and the pawl 1'! are swung through a suitable are by means of a connecting rod 19 operated by suitable cam mechanism from a concarrying members 68 thereon are moved step-bystep in opposite directions and are simultaneously reversed inisuch manner that the threads fed from the yarn carriers on one of the rods say 66 produce the zig-zag lines 'while the threads from the thread carriers on the other rod 61 p'rm duce the zig-zag lines 51.

It will of course be readily understood that the cam or other operating mechanism may be modified--and the positions of the thread carriers 63 on the rods,66, 61 may be varied so as to produce zig-zag lines or combinations of zig-zag or parallel lines of varying formsand arrangements.

Although the drawings and above specification disclose the best mode in which I have contemplated embodying my invention, I desire to be in no waylimited to the details of such disclosure,

for in the further practical application of my invention, many changes in the form and construction, and in the form-of fabric produced thereby, may be made as circumstances require or experience suggests without departing from thespirit of the invention within the scope of the appended claims.

What I claim is:

1. An attachment for feeding auxiliary threads 50 to certain needles of a Milanese warp knitting machine to knit in the fabric a reinforcing band extending in parallel relation to the selvage edges comprising: a bracket adapted to be mounted on the warp knitting machine; a rod supported in, said bracket for longitudinal sliding movement in lengthwise and paralleling relation to the-bank of needles; thread guides carried by said rod for feeding the auxiliary threads to a limited number of needles; a rotatable member having a cam face 7 disposed in alignment with said rod to have bearing contact with one end thereof, saidcam face being provided with high and low portions, the high portion operating to foree the rod in one direction andthe low portion allowing the rod to aoeaiae I 3 move in the reverse direction whereby the thread guides may be reciprocated from pne needle to another for transversing the thread repeatedly back and forth across a restricted area of the fabric; ratchet means associated with said mem ber to impart a step by step movement thereto for actuating the latter in timed relation with the operation of the knitting machine; and means connected to the rod and acting to yieldably urge the same into operative engagement with the cam member and move said rod in the reverse direction when the low portion of the cam face is brought in alignment with the associated end of the rod.

2. An attachment for feeding auxiliary threads to certain needles of a Milanese warp knitting machine to knit in the fabric a reinforcing band extending in parallel relation to the selvage edges comprising: a bracket adapted to be mountedon the warp knitting machine; a rod supported in said bracket for longitudinal sliding movement in lengthwise and paralleling relation to the bank of needles; thread guides carried by said rod for feeding the auxiliary threads to a limited number, of needles; a rotatable member having a cam face disposed in alignment with said rod to havebearing contact with one end thereof, said cam face v being provided with High and low portions, the high portion operating to force therod in one direction and the low portion allowing the rod to move in the reverse direction wherebythe thread guides may be reciprocated from one needle to another for transversing=the thread repeatedly back and forth across a restricted area'of the fabric; ratchet means associated with said-member to impart a step by step movement thereto for actuating the latter in timed relation with the operationL-of the knitting machine; anda spring connectedto the rod and acting to urge the same into operative engagement with the cam member andmove said rod in the reverse direction when the low portion of the cam face is brought in alignment with the associated end of the rod. g 3. An attachment for feeding auxiliary threads to certain needles of a Milanese warp knitting.

'machine to knit in the fabric a reinforcing band extending in parallel relation to the selvage edges comprising: a bracket adapted to be mounted on the warp knitting machine; a rod supported in said bracket for longitudinal sliding movement in lengthwise. and paralleling relation to the bank of needles; thread guides fixed upon one end of said rod for feeding the auxiliary threads to a limited number of needles; a rotatable member hav-' ing a cam face disposed in alignment with the rod to have bearing contact with the other end thereof, said cam face being provided with high and low portions, the high portion operating to force the rod in one direction and the low portion allowing the rod to move in the reverse direction whereby the thread guides may be 'reciprocated from one needle to another for transversing the thread repeatedly back and forth across a restricted area of the fabric; ratchet means associated with saidmember to impart a step by step movement thereto for actuating the latter in timed relation with e the operation of the knitting machine; and means connectedto the rod and acting to yieldably urge 3 0' the same into operative engagement with the cam member and move said rod in the reverse direction when the low portionpf the cam face is brought in alignment with the associated end of the rod. v

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