US1498067A - Knitting-machine head - Google Patents

Description

June 11?, E924.

c. G. BAUER KN ITTiNG MACHINE HEAD b'il ed July 17 1920 Patented June 17, T924.

, UNITED STATES 1,498,067 PATENT OFFICE.

CHARLES G. BAUER, OF BROOKLYN, NEW YORK, ASSIGNOR TO OLIVER C. SAFIR, F

' NEW YORK, N. Y.

Application filed July 17, 1920. SerialNo. 396,913.

To all whom it may concern:

Be it known that I, Cnannns G. BAUER, a citizen of the United States, residin at Brooklyn, in the county of Kings and tate of New York, have invented new and useful Improvements in Knitting-Machine Heads, of which the following is a specification.

This invention relates to knitting machines and has particular reference to the needle mechanism and needle operating mechanism therefor.

One of the principal objects is to provide a reciprocatory holder for each of the needles.

Another object is to provide a large hearing surface for the holders.

Another object is to provide each of the holders with anti-friction means for effectin reciprocation. %till another object is to proved cam mechanism.

Other objects will a pear from the following description and c aim.

All of these objects are accomplished by ac mechanism shown in the accompan ing provide an imdrawing consisting of one sheet, in whic Figure l is a front elevational view of my improved knitting machine.

Figure 2 is a horizontal sectional view so taken substantially in line 2-2, Figure 1.

Figure 3 is a horizontal sectional view taken substantially in line 3-3, Figure 2.

Fi res 4 and. 5 are detail views of the cam evice.

Figure 6 is a detail view of the core.

Llke characters of reference refer to like parts throughout.

Needles for knitting machines have been formed with a lug which has been operated on directly by a cam mechanism, and this constant wear on so delicate a part as the In s of the needles necessarily are, has re. su ted in constant breakin of the needles and considerable loss-not a one in the cost of the needles themselves, but also in the amount of time required for replacing the needle and the enforced idleness of the machine during such replacing. The present invention contemplates providing needle holders for the needles so that the cams no lon or work directly on the needles. Each holder is provided with an anti-friction roller working in the cam slot, and all of the holders are mounted in a frame which rovides large bearing surfaces for the hol era.

.Incidently the arrangement has provided ings, 1 and 2 represent two rods of the supporting frame-work of the machines, and. 3 1s a supporting frame member which may be mounted on said rods as shown. This frame-work may, however, be of an suitable form to support the structure erein after described.

A shell member 4 is rising from the supporting frame-member and being provided on its interior with a pair of co-acting cam members 5 and 6 which may be secured in place in said shell 4 by being sweated or welded thereto or in any other well-known manner. The exterior of'the shell is provided with a supporting flange 7 and a flange 8 which together define between them a be t-race 9 for the driving belt. The belt race is provided with converging walls II which meet midway between the flanges, as clearly shown in Figure 1 of the drawings.v The cam members 5 and 6 are spaced apart at their cam ends to form a cam groove 10.

A bearing sleeve or core 11 is provided so with a plurality of longitudinally disposed slots 12 in its upper end and in each of these slots is seated a needle holder 13 having an anti-friction roller 14 on its outer edge, the antifriction rollers of all of the holders 13 being positioned in the cam slot 10. Seated in each of the holders 13 near inner faces thereof is a needle 15 of the usual ty e, the nib or lug 16 of which is utilized or preventing turning of the needle in its holder. -A tube 17 is threadedly secured in the lower end of the core 11 and extends upwardly therethrough, co-operating with the inner faces of the needle holders to confine the needles in the holders and in their'circular vertical arrangement. The knitted fabric is drawn down through the tube 17 by any desired means and the tube 17 may be adjusted vertically to loosen or tighten the stitch.

In operation, the shell 4 and the cam members 5 and 6 are rotated, whereby the ram-slot 10 causes rollers 14 tomove u and down thereb reciprocating the needle olders and nee les to effect the knitting operation.

While I have described what I consider to be the most desirable embodiment of my invention, it is obvious that many of the details may be varied without in any way departing from therspirit of my invention; and I therefore, do not limit myself to the exact details of construction herein set forth nor to anything less than the whole of my invention limited only by the appended claim.

What 1 claim as new and desire to secure by Letters Patent is:-

A circular knitting machine of the character described comprising a supporting frame, a bearing sleeve rising from the frame and provided with a plurality of vertically disposed slots formed in the portion thereabove, a tube threadedly secured centrally in the, lower portion of the bearing sleeve, a shell rising from the frame and supporting the sleeve, a pair of superposed members arranged between the shell and sleeve and having a pair of cammed operating surfaces to provide a cammed groove a needle holder mounted in each slot, a roller carried by each holder and operating within the groove and needle secured to the inner sides of the needle holder and arranged in spaced relation around the tube.

In testimony whereof I have affixed my signature.

CHARLES Gr. BAUER.

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