US1674013A - Needle for jacquard - Google Patents

Description

June 19, 192&

T. KELLEY NEEDLE FOR JACQUARD Filed Jan. 10, 1927 INVENTQR THoMAs KELLE y F"T O Fewavs Patented June 19, 1928.

UNITED )STATES PATENT [OFFICE- THOMAS KELLEY," orrnovrnnncn, nHonE'isLAnn, AS'SIGNOR, rdoBoMP'roN a;

KNOWLES LOOM woaxs, or woncns rnn, vrassacrrnsnrrs, [A CORPORATION or MASSACHUSETTS.

NEEDLE FOR JAGQUARID.

Application filed January 10, 1927. Serial No.1G0,120.

This invention relates to improvements in j acquardmechanisms for looms and it is the general object of the invention-to provide a form of jacquard needle which will insure accurate movement of the warp controlling hooks and atthe same time permit a large number ofj'needles to be housed 1n a relatively small space.

Jacquard mechanisms are provided with.

a series of needleswhich are usually moved horizontally by cards and cooperate with warp lifting jacks or hookswhich are re ciprocated vertically by knives or griifes. Each needle Controls thehorizontal position of one of the jacks, this control usually being effectedby a crimp .or eye in the needle which partly or completely surrounds the jack Ifindthat when the eyes are entirelyclosed the hooks can notbe tested as closely as is necessary for fine index worlnand'l furthermore find that when the, crimp or eye is of the usual open type the hook is engaged by the rounded part of they open eye and deflected laterally with resultant improper action. It is an important object of my present invention to provide a needle having a partly closed eye so formed as to restrain improper movement of the hook or jack, but at the same time permit close assembling of the hooks.

With these and other objects which will appear as the description proceeds,'my invention relates to the arrangement and combinations of parts hereinafter set forth, and more particularly pointed out in the claims.

In the accompanying drawings, wherein a convenient embodiment of my invention is shown,

Fig. 1 is a vertical section showing the .jacquard having my invention applied therefixed vertical pin 13 mounted on a spring' box 14' and springs 15 normally hold-the needles to the. right. as. viewed in Fig. 1'. The cylinder 16 receives the usual cards one of which is indicated at 17,said cards having perforations and blank l spaces to cooperate with theneedles and leaVe the." same at rest "or push them to inoperative position, as the case may be. I I

A griif frame 18 receives vertical recipro eating movement by mechanism not shown,

causing the knives 19 to lift those jacks 20 the needles. of which are opposite holes in the card 17. The jacks orfhooks 20 control the vertical position of the warpthreads to determine the pattern ofthe fabric being woven. Thecylinderand a new card will" be moved towardthe needles eachpick of the loom and while the cylinder is adjacent the needle board-11 the grilf frame will move upwardly; thus formingthe 'shed ,for the shuttle.

The matter thus far describedis of common. construction andv forms'no part of my present invention.. I .rMy improvements relate to the "form of As previously stated it is old to make a loop. in the needle through which the jack passes and it is also old to form the needle with an open eye in the formof an are somewhat less than 180.in which the jack lies. Both forms of eyes are objectionable in a fine so connection between the needles and the jacks.

index jacquard, the closed eye taking up too much room and the open eyes giving an undesirablelateral movement to the jacks. The form of eyewhich I employ is shown more particularly in Figs. 2 and 5 where it will be seen that the needle is provided with a crimp or eye 30 which is partly but not entirely closed, this eye being of such size as to receive the corresponding jack 20.

As shown in Fig. 2 the open part of the eye receives the rounded part ofthe adjacent eye, thus permitting close assembly. It will also be seen that the opening of the eye is slightly less than the diameter of'the jack 20 sothatthe latter is held positively against undue lateral displacement. Fig. 4 shows how close the various parts of a fine index jacquard are to each other and why it is necessary to keep these parts in proper position.

From the foregoingit will be seenthat l f' have provided a jacquard needle having a partly closed eye of such size and proporlll) tions as to permit close nesting of the needles and at the same time prevent undue lateral movement of the jacks. The are of the needle eyes is somewhat more than 180 and less than 360. I find that a jacquard made as set forth herein will accommodate a large number of needles without spreading the jacks over too large an area.

Having thus described my invention it will be apparent that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed but what I claim is:

1. In a jacquard mechanism, a plurality of warp controlling jacks, a needle to control each jack, and an open eye formed in each needle and surrounding a portion of the jack, said eyes having openings of less width than the diameter of the jack to restrain lateral movement of the latter and a portion of one eye lying opposite an opening in an adjacent eye.

2. In a jacquard mechanism, a plurality of warp controlling jacks, a needle to control each jack, and an open eye formed in each needle and extending around the greater part of the corresponding jack to restrain lateral movement of the latter and a portion of one eye lying opposite an opening in an adjacent eye.

3. In a jacquard mechanism, a plurality of warp controlling jacks, a needle to control each jack, and an open eye in each needle surrounding a portion of the corresponding jack. the are of the eye being greater than 180 and less than 360 a portion of one eye lying opposite the open part of the adjacent eye.

4. A jacquard needle having an open eye therein the arc of which is greater than 180 and less than 300 the opening being formed at the side oi the eye and between longitudinally extended parts of the needle and being substantially aligned with the point of maximum lateral projection of said eye from the axis of said needle.

5. A jacquard needle having an eye open on one side and having the arc of the interior of the eye greater than a half circle the opening being formed at the side of the eye and between longitudinally extended parts of the needle and being substantially aligned with the point of maximum lateral projection of said eye from the axis of said needle.

6. A jacquard needle formed of wire and having an eye therein made by bending the wire so thatthe bend lies in the plane of the wire, said eye having an opening at the side thereof and between longitudinally extended parts of the needle, which openin is of less width than the greatest internal diam eter oi the eye and is substantially aligned with the point of maximum lateral projection of said eye from the axis of said needle.

In testimony whereof I have hereunto atlixed my signature.

THOMAS KELLEY.

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