Patent GB-190819157-A (GB)
Title: Improvements in Apparatus for use in the Manufacture of Artificial Silk and like Threads.
Inventor: TETLEY HENRY GREENWOOD
Filed: 1908-09-11
Granted: 1909-07-01
Abstract: 19,157. Tetley H. G., and Clayton, J. Sept. 11. Cellulose and its ethers.-In apparatus for manufacturing artificial silk &c. in which a rotatable spindle driven at some position between its ends is employed, and in which the viscose or other liquid is introduced at the opposite end of the spindle to that at which the nozzle is fixed, the spindle is mounted on a swinging frame enabling its lower end to be swung into and out of the coagulating - bath, and the spindle to be simultaneously thrown into and out of gear respectively with the rotating mechanism. Moreover a pump is provided which swings independently of the frame, on centres therein, and is driven by gearing in connexion with the spindle driving-mechanism. Referring to the drawings, on a suitable framework are arranged baths parallel to each other, and beside these are standards 3 carrying bearings for the driving- shaft 4 carrying friction wheels 5. Brackets 6 carry the pump driving-shaft 7 carrying worms 9. An extension 11 of each of these brackets carries bearings on which can rotate a frame consisting. of two standards 12, 13 and two crosspieces 14, 15, and carrying the casing of the hollow spindle, to which the nozzle is attached. The pump 16 is carried in bearings in one of the standards 13 and in the bracket 11 respectively and can be rotated independently of the frame 12, 13. When the frame is swung so that the nozzle dips into the bath, and tre pump is swung so that the worm-wheel 27 gears with the worm 9, viscose, for example, is pumped through an outlet in the supply pipe 10 through a perforation in the bracket 11 and thence by means of the pump, which is driven from the shaft 4 by change-wheels 8, through a perforation and a filter in the standard 13 to a chamber 32 in a piece 41 carrying one of the bearings of the spindle 19. Thence the liquid flows by a lateral perforation through the spindle to the nozzle 20. The upper end of the spindle 19 may be made with a conical seating or, according to the Provisional Specification, it may be provided with a stepped seating, or the end of the spindle may project through a ball- and-socket joint, or directly, into the chamber in the piece 41. The spindle is rotated by means of a worm 21 working with a worm-wheel 22 carried by a shaft 23, which works, preferably in ball bearings, in a casing 25 attached to the standard 13. The worm-wheel carries a friction wheel which works with that carried by the driving-shaft 4. The threads produced from the filaments by the rotation of the nozzle are wound on suitable reels or their equivalents 53 carried by spindles which work in open-topped bearings 51 attached to the extremities of transverse hollow arms forming part of the standards 45. Additional bearings 54 are provided above the others so that the reels may be removed thereto and thus be thrown out of gear, and if desired replaced by fresh reels. The reels are driven by chain gearing contained in the hollow arms 50, from the shaft 4 by means of wheels 47, 48, connected by the piece 49. Thread layers 62 are provided, worked by an eccentric on the shaft 49. Any desired number of baths, nozzles, pumps, and reels arranged in any convenient positions may be used.