US1765246A - Circular-weaving loom - Google Patents

Description

June 17, 1930. c. sERY 1,765,246

CIRCULAR WEAVING LOOM Filed Feb. 23, 1929 Patented June 17, 1930 UNI-TED STATES PATENT OFFICE CLAUDE sRY, or AIX-EN-PROVENCE, FRANQE, AssIGNoR rro SOCIT A :aEsPoNsA- BILIT LIMITE ETABLISSEMENTS no'rnrrss," oF rams, FRANCE, A FnENcH COMPANY cIBcULAn-WEAVING `Loon:

Application led February 23, 1929 Serial No. 342,209, and iin France March 6, 1928.

shuttle being provided with means adapted to complete this motion.

The mechanism according tov my invention comprises an electro-magnet for each warp thread. the armature of said magnet being provided with thread guiding means.`

In the annexed drawings:

Fig. 1 is a diagrammatical radial section of a circular weaving loom having a selector according to my invention.

Fig. 2 is a section on line II-II of Fig. l.

Fig. 3 is a fragmental plan View of a card adapted to control the electromagnets of the loom.

Referring to Figs. 1 and 2, 34 is the other cylindrical member of the loom, having a groove 210 in which slide the outer skates of the shuttles. The latter are provided With separating cams 38 adapted to complete the warp thread movements, as will be described later on.

'l`he warp threads such as 89 extend radially with respect to the loom axis. They are guided byl fixed guides 75 from which they pass through a movable guide 92 fixed to a spring 94 having its end fixed to member 34 at 211. Spring 94 also carries an armature 93 under which is placed an electromagnet 95 fixed onto a flange 35 integral with member- 34. A slit 212 permits the passage of thread 89, as shown.

Vhen spring 94 is free (i. e. when no current fiows through electromagnet 95) the armature 92 is at its uppermost position, shown in full lines Fig. 1 and the thread 89 is somewhat over the plane of the tips of the cams 38 of the shuttles. The thread is thus lifted by the cam of the first incoming shuttle and passes over the same.

When electromagnet 95 is energized, the thread is lowered below the tips of cams 38 and passes under the same, as it will be readly understood.

The control of the electromagnets of the loom is preferably effected, as shown, by means of spring contacts such as 97 cooperating with fixed contacts 96 and provided with projections 98 under which passes acard 99 having perforations corresponding to the projections 98. When one projection 98 is over a perforation of card 99, the corresponding spring 97 is free and the circuit of the corresponding electromagnet is interrupted. On the contrary, when a projection 98 is not over a perforation, the corresponding spring 97 is maintained in cont-act with terminal 96 and the corresponding electromagnet is energized.

The card 99 may be driven by any suitable mechanism.

I claim:

1. In circular weaving looms of the kind in which the ywarp threads are given a small initial motion which is completed by means carried by t-he shuttles, a selector mechanism comprising movable thread guides through which the warp threads are passed, and fixed electro-magnets adapted to actuate said thread guides withoutv at the same time actuatmg the Warp thread bobbins.

2. A selector mechanism as claimed inclaim 1, comprising for each warp thread a. thread guide; a spring support to which saidthread guide is fixed; an armature also fixed to said spring support; and an electromagnet adapted to actuate said armature, said spring support being adjusted in such a way that, at the free posit-ion thereof, said thread guide guides the Warp thread over the shuttles and, on the contrary; at the depressed position thereof, said thread guide guides the Warp thread under the shuttles.

3. A selector mechanism as claimed in claim 1, wherein the electromagnets ofthe CLAUDE SRY.

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