US1793704A - Double-ring twisting frame specially for twisting artificial silk - Google Patents

Description

Feb. 24, 1931. M. LENK 1.793.704

DOUBLE RING TWISTING FRAME SPECIALLY FOR TWISTING ARTIFICIAL SILK Filed Sept. 19. 1929 2 Sheets-Sheet 1 fig! ln wenlor:

. Feb. 24, 1931. M LENK I 1,793,704

DOUBLE RING TWISTING FRAME SPECIALLY'FOR TWISTING ARTIFICIAL SILK Filed Sept. 19, 1929 2 Sheets-Sheet 2 15 thereby" that the delivering spools areposi tively driven and that the guide rods for the Patented Feb. 24, 1931 UNITED STATES PATENT OFFICE MATHIAS LEld'K, OF LENNEP, GERMANY, ASSIGNOR TO THE FIRM BARKER MASCHIN- Y ENFABRIK AKTIENGESELLSCHAFT, OF BABMEN-RITTERSHAUSEN, GERMANY DOUBLE-RING TWISTING FRAME SPECIALLY FOR TWISTING ARTIFICIAL SILK Application filed September 19, 1928, Serial No. 393,673, and in Germany February 25, 1928.

the distance between the twining ring and the thread guides remains the same in anyposition. The twisting frame according to the invention'is further distinguished frame are arranged on the inner side of the spindles.

By these improvements it is obtained, in comparison with the known double ring twisting-frames, on the one hand, that by the positive driving of the delivering coils a large thread supply is ensured and consequently no thread tension and no straining of the thread occurs and, on the other hand, a steady running of the frame is ensured by the suspended arrangement of the ring bank notwithstanding the extraordinarily high num- .ber of revolutions of the spindles, a rapid traverse of the ring banks for the obtention of a sharp crossing of the artificial silk on the spools becoming thus possible. By the sharp crossing an easier taking up of the thread is ensured. The uniform distancebetween twining ring and thread guides ensures the uniform twining of the artificial silk. By the arrangement of the guide rods on the .outer side of-the rows of spindles is further obtained, that at breaking of a thread the ends of the threads do not strike against the lubricated rods and therefore cannot soil the cops.

The improved ring-twisting frame is illustrated by way of example in the accompanying drawing in which ig. 1 is an end elevation. Fig. 2 shows in side elevation a portion of the twisting frame.

On the end of the frame 1 of the twisting frame a box 2 is fixed which contains the drivdriving bar 5 is moved to and fro in longitudinal direction, and'motion is also transmitted from the gear box 2 to the delivering spools (land to the twining spindles 7. The twining spindles 7 are driven through the intermediary of a shaft 8 and gear wheels 9, the delivering spools 6 being driven through the intermediary of gear wheels 10 and sprocket wheels 11 and 12. The delivering spools 6, which are rotatably arranged abovethe' driving rod 5 on either side of the middle line of the frame in bearings 13, are positively driven by means of wormwheels 14 and 15 mounted in a common oilchest 16. The delivering spools 6 might however be driven in any other suitable manner. The driving bar 5 'is adapted to be reciprocated by means of a change gearing through a set of counter gears from the gear box-2 The reciprocating motion is produced by the eccentric 18 which drives the carriage 17, the movement of the carriage being transmitted by chain upon roller 33' and thence through change wheels 34, 35 upon roller 33, and then by chain 19 upon the draw bar 5. The bar 5-is therefore pulled in one direction by chain 19 winding on the roller 33. The movement in opposite direction takes place after slackening of chain 19, i. e.,by' unwinding of this chain from the roller 13 through the weight of the whole changing frame. The twining material 20 travels from the delivering spools 6 through the thread guides 21 to the twining spindles 7. The ring banks 22 are mounted on an intermediate frame 23 which, unsupported, slides suspended on guide rods 24, the twining rings 25 being arranged on the ring banks 22 and the thread guides 21 on the common frame 23 in such a manner, that the distance between thread guides and twining rings re.-

fro over the pulley 26 according to the move-- ering spoolsthe ring banks and the twining ment of the driving rod, whereby the ring spindles, and a common gear box'accommobanks 22 are raised-and lowered. The weight dating part of the driving gear and fixed on of the ring banks is balanced by counter the end ofthe twisting frame.

- weight 28, which is also connected by a chain 30 guided over a pulley 29 mounted on the same axle as the pulley 26 to the driving rod so that this counter weight is raised and lowered in opposite directions as the ring banks. The cops are built up from below upward by means not shown, which transmit the motion to a worm-gear 31, whereby the driving rod,

when moving to and fro, is gradually moved towards the side by the winding of the chain 19 on a pulley 32 and by the winding of the chain 19 upon a pulley 33, so that thereby a periodical shortening of the chain 27 attached to the ring banks is effected, producing the progressive upward movement of the 20 ring banks for the cop-formation, as the ring.

banks during their vertical reciprocating movement are slowly lifted, the counterweight 28 being lowered accordingly.

The guide rods 24 for the frame 23 carrying 25 the ring banks 22 are arranged on the inner side of the spindles 7 at such a distance from the same, that the yarn 20 to be twisted cannot touch the lubricated rods when a thread should break. With this object in view the 80 driving gear for the delivering spools 6, for

the twisting banks 22 and for the spindles 7 is accommodated in the gear box 2 preferably arranged at the end of the twisting frame. Owing to the fact that the ring banks 22 85 on the two sides are arranged on the frame 23 sliding on guide rods, these ring banks can be readily and rapidly interchanged, whereby a sharper thread crossing of the artificial silk on the spool is obtained, the taking up of the thread being thereby facilitated.

I claim 1. A double ring twisting-frame specially for twini ng artificial silk, comprising in combination with the delivering spools and the two ring banks, a common driving rod for said ring banks, a frame on which said ring banks are arranged, means for supporting said frame, guide rods on which said frame slides, and driving means for positively driving said delivering spools.

2. A double ring-twisting frame specially for twining artificial silk as specified in claim 1, comprising in combination with the common carrying frame for the ring banks, thread guides arranged on said common, frame.

3. A double ring twisting-frame specially for twining artificial silk as specified in claim 1, comprising in combination with the spinthe. ring banks, the guide rods for said frame arranged on the inner side of said spindles.

, 4:. double ring twisting-frame specially for twining artificial silk-as specified in claim 05 1, comprising in combination with the delivdles and with the common carrying frame for.

. In testimony whereof I afiix my signature.

MATHIAS LENK.

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