US1415177A - Loom needle mechanism - Google Patents

Description

G. F. HUTCHINS. EOOM NEEDLE MECHANISM. APPLICATION FILED JAN. 11. 1921.

1,415,177.; 1mm May9,192 2.

PATENT orrics.

GEORG E. nuronnvs; or

woitcnsrnn, MASSACHUSETTS, Assrenonro cnoivrrron a KNOWLES LOOM. XVORKS', A CORPORATION OF MASSACHUSETTS.

1.00M NEEDLE .MECI-IANISM.

Specification of Letters Patent.

Patented. May 9, 1922.

Application filed January 17, 1921. Serial No. 437,703.

To all whom it may concern: 7

. Be it known that I, Gnoncn F. Hurcnrns, a citizen of the United States, residing at Vv orcester, in the county of Worcester and State of Massachusetts,-have invented a new and useful Loom Needle Mechanism, of

i which the following is a specification.

This invention relates to needle mechanism for a loom in which two or more weft threadsare used, with picks of one kind interposed or alternating those'of another.

It is the general object of my invention to provide a construction by which any selected needle may be operatively connected to an actuating rod while the other needles remain inoperative. I

With this general object in view, an important feature of my invention relates to the provision in a loom of a plurality of relatively short needles or needle points, mounted in parallel relation and movable transversely to operative position relative to a regularly reciprocated needle actuating bar. A further feature of my invention relates to an improved connecting device by means of which a selected needle may be detachably secured to the needle bar.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A. preferred form of my invention. is shown in the drawings, in which Fig. 1 is a front elevation ofa portion of a loom embodying my improvements;

Fig. 2 is a sectional side elevation taken along the. line 2-2 in Fig. 1;

Fig. 3 is a plan view of the connecting device; I

Fig. 4t is a front elevation, partly in section, of the parts shown in Fig. 3;

Fig. 5 is a horizontal sectional View taken along the line 5-5 in Fig. 2;

Fig. 6 is a sectional view showing the connection between'the needle and the needle rod, and

Fig. 7 is a sectional detail elevation to'be described.

Referring to the drawings, I have shown a portion of the frame 10 of a loom of a usual type in which the weft threads are inserted in the warp by a positive needle motion.

A needle actuating rod 11 is secured in a,

block 12 which is mounted to slide on guideways 13 (Fig. 2) fixed to the loom frame 10. The block 12 has a pin and slot connection with a picker stick 1 f mounted'to swing about a fixed pivot 15, and given regular operative movements by actuating mechanism not shown.

T he front end of the rod 11 has a bearing in a stand 16 which may be conveniently mounted on the support for the guide-way 13. Two or more short needles or needle points 1.7 are provided with headed rearward extensions 19 (Fig. 6), which extensions are slidably supported in a transversely extended slot 20 (Fig. 4;) in the stand 16.

A notch 21 is provided in the rear end of each extension 19 and a plurality of plungers 22 are provided to yieldingly engage the needles in the notches 21, and thus prevent accidental displacement thereof. These plungers are mounted in the stand 16 and also in the rod 11. Springs 23 force the plungers 22 yieldingly outward, such move- -ment being limited by guide pins 24 in the plungers extending through slots 25 in the stand 16 or rod 11.

A cross slide 26 is mounted in the stand 16 above the slot 20, said slide being provided wit downwardly and inwardly extending portions27 (Fig. 2), adapted to enter the ends of the slot 20. A bell crank 28 is mounted on a fixed pivot 29 and has a pin and slot connection with the slide 26.

The bell crank 28 may be connected by a link 30 toany suitable pattern-controlled actuating mechanism by means of which the slide- 26 will be moved transversely whenever a change of filling is desired. As the slide is. thus moved transversely, one of the needles 17 will be moved out of alignment with the needle rod 11 and a different needle Having thus described my invention, the operation and utility thereof is readily apparent.

Needles 17 are provided corresponding in number to the number of different kinds oi wet't which are to be used. These needles are yieldingly secured in parallel relation by inserting their headed rearward extensions 19 in the slot 20 of the stand 16, one of the needles being aligned with the needle rod 11. The needles are then shifted transversely by suitable pattern mechanism acting through the cross slide so as to bring any selected needle into operative relation with the needle rod.

After each movement of the cross slide 26,

the needle rod is reci 'n'ocated to insert one or more picks of the selected wet't in the warp.

While a preferred form oit'my invention has been shown and described, it will be evident that changes and modifications can be made therein by those skilled in the art within the spirit and scope of invention as set forth in the claims and I do not wish to be otherwise limited to the details herein disclosed, but what I claim is l. In a loom, a plurality of weft needles mounted for transverse movement, a reciproeating needle rod, means to move said needles relatively to said rod, and means to detachably secure a selected needle in alignment with said rod. i I

2. In a loom, a reciprocating needle rod, a plurality of weft needles adjustably mounted for selective movement into to operative relation with said rod, and means to move said needles transversely relatively to said rod to position a selected needle in the path of said rod.

3. In a 100m, a plurality of weft needles mounted for transverse movement, a needle rod and means to move and connect one needle with said rod and to simultaneously remove'and disconnect a second needle from said rod. 1 4. In a loom, a plurality of transversely movable weft needles, a reciprocating needle rod, means tomove said needles to operative and inoperative positions relative to said rod, and means to hold said IIGGdlQS -ylGlClingly in either position. i

5. In a loom, a plurality of wettneedles a stand in which said needlesare mounted for transverse movement and are supported in parallel relation, means to yieldingly hold said needlesin such relation, a needle rod movable toward and away from the fabric, and means to selectively move said needles and to connect a selected needle with said rod when the latter is in its outward position.

6. In a loom, a stand, a plurality of weft needles mounted to slide transversely in said stand, a needle rod mounted to reciprocate longltudmally in said stand, and means to move sa1d needles transversely to connect and disconnect said needles from, said rod.

7. In a loom, a reciprocating needle rod, a plurality of weft neddles adjustably mounted for.,sele'ctive movement into 00% operative relation with said rod, means to move said needlesto operative and inoperative positions relative to said rod and means to position said rod longitudinally during versely in said stand, a needle rod mounted to reciprocate longitudinally in said stand, and a cross slide mounted in said stand and elfectiveto move said needles transversely to connect and disconnect said needles from said rod.

In testimony whereof I have hereunto afiixed my signature.

.enonen rinuromus;

a plurality of vweft i I needles yieldingly mounted to'slide trans-

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