会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 41. 发明专利
    • Improvements in or relating to the twisting of yarns, threads, or filaments
    • GB369939A
    • 1932-03-24
    • GB3886330
    • 1930-12-24
    • BRITISH CELANESEWILLIAM POOL
    • D02G3/28
    • 369,939. Twisting yarns, threads, or filaments. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and POOL, W., of British Celanese, Spondon, near Derby. Dec. 24, 1930, No. 38863. [Class 120 (ii).] Two threads from a single thread of continuous filaments are led from a single supply package in opposite e directions to follow independent looped paths around the package and the loops caused to rotate, whereby each thread is twisted in opposite senses and to the same degree and more than one twist is imparted for each revolution. In this manner a single thread of continuous filaments, for example of cellulose acetate, viscose, or other artificial or natural silk is divided into two equal or unequal groups. Preferably the single thread is untwisted. The twisting may be effected by a device having tubular flyers as described in Specification 369,940, the threads 7, 8 passing as shown through arms 34, 35 and hollow end trunnions from a package 6 which is mounted on a platform 10. The flyers are rotated by a wharl 16 and the platform 10 is geared, by means of wheels 19, 20 on a shaft 18 carried by the wharl, with a fixed wheel 22 so that it is maintained stationary. Friction gearing such as described in Specification 369,293 may be provided for this purpose, or the platform may be rotated relatively to the flyers to increase the rate of twisting. The twisted yarns may be wound on packages, or twisted and doubled with other threads, for example by a ring spindle apparatus, or the thread may be wound at an intermittent rate by means such as described in Specification 358,585 to cause the degree of twist to vary along its length. In the provisional Specification it is stated that the device may be employed to impart twist to two threads drawn from a single package, that the threads may be already twisted so that a further twist is imparted, and that when the thread consists of twisted filaments untwisting means controlled by a detector may be provided to enable the filaments to be separated ready for the retwisting.
    • 46. 发明专利
    • Improvements relating to the separation and feeding of the filaments of yarns or bundles of continuous filaments
    • GB504400A
    • 1939-04-25
    • GB2963337
    • 1937-10-29
    • WILLIAM POOL
    • B65H54/00D01G1/10D01G99/00
    • 504,400. Unwinding bobbins; separ. ating and stapling continuous filaments. POOL, W. Oct. 29, 1937, No. 29633. Drawings to Specification. [Classes 120 (ii) and 120 (iii)] A method of and apparatus for separating and feeding continuous filaments from a bundle comprises drawing the bundle over and in contact with a roller having a surface of material which is removed in the electrostatic series from the material of the filaments, and rotating the roller with a peripheral speed different in magnitude and/or direction from the speed of the filaments so as to impart to the filaments a charge of static electricity and to cause them to separate from one another; the separated filaments may be then cut into staple lengths. The filaments may be traversed laterally to and fro across the roller and the bundle may be drawn over-end from a stationary flanged bobbin or the like by means of feed rollers or from a rotating bobbin or it may be fed positively to the surface at a predetermined rate and be drawn in a non- positive manner over and past the surface. The apparatus is described in Specification 504,399, which is referred to. Specifications 484,190, 489,273, and 504,401, also are referred to.
    • 47. 发明专利
    • Improvements relating to the manufacture of staple fibre yarns or like products
    • GB489273A
    • 1938-07-21
    • GB2859436
    • 1936-10-21
    • WILLIAM POOL
    • D01H4/00
    • 489,273. Forming staple fibre yarns or like products. POOL, W. Oct. 21, 1936, No. 28594. [Classes 120 (ii) and 120 (iii)] Staple fibre yarns or like products are formed by feeding a substantially twistless bundle of associated continuous filaments towards a rotating drum, separating the filaments of the bundle from each other at the end of the bundle, obtaining from the separated filaments a succession of groups of separated fibres of predetermined length by a cutting operation, nipping each group of cut fibres to the peripheral surface of a drum at a point which, by reason of the rotation of the drum, progresses along the length of the group and withdrawing the overlapping groups through a passage to the axis of the drum, the rates of feeding and withdrawal being such that the twist imparted by the drum unites them into a continuous twisted product. A number of nipping-points may be provided with corresponding passages leading to the axis of the drum, the several successions of groups being united and twisted together. The fibres may be of cellulose acetate or other organic derivatives of cellulose. Apparatus generally similar to that described in Specification 489,272 is shown, the groups severed from a bundle 13 being nipped by the co-operation of a covered roller 11 with a part 6 of the surface of the drum 1 and withdrawn through the passage 7. The filaments are separated from each other, fed and severed generally as described in Specification 489,272. Specification 484,192 also is referred to.
    • 50. 发明专利
    • Improvements in the manufacture of staple fibre products from continuous filaments
    • GB484190A
    • 1938-05-02
    • GB2121036
    • 1936-07-31
    • HENRY DREYFUSWILLIAM POOL
    • D01G1/10
    • 484,190. Forming staple fibre products from continuous filaments. DREYFUS, H., and POOL, W. July 31, 1936, No. 21210. [Class 120 (iii)] A substantially twistless bundle of associated continuous filaments is converted into a staple fibre product by feeding it forward, separating the filaments at the end of the bundle from one another, cutting from them predetermined lengths successively to yield groups of fibres, and while the cut fibres are still separate, assembling the groups so that forward ends of the fibres of each group overlap the rearward ends of those of the preceding group, and then compacting the fibres into a continuous staple fibre product. In the apparatus described a bundle of filaments 8, Fig. 1, is drawn by nip rollers 10 from a supply bobbin 9 through guides 11 and a gate tension device 12 and is fed into a hole 14, Fig. 6, and out through a flared orifice 15 of an ejector nozzle fed with compressed air from a conduit 17. The air jet as seen from above has three diverging passages 19, Fig. 7, in order to spread the blast and cause the filaments to issue in a spread fan shape. The separated end portions of the filaments on leaving the orifice extend across an endless permeable band 20 which is driven over a suction conduit 21 by a roller 22 and kept taut by a spring-loaded idler 23. Perforations 27 in the conduit cause the free ends of the filaments to be held as shown in Fig. 1. Simultaneously the air blast to the nozzle is momentarily interrupted by a spring- loaded valve 50 and a forked deflecting member 30 descends upon the filaments and presses them into contact with the teeth of a " hair-clipper " type cutting device 31 placed diagonally across the path of the filaments. The cutter is then operated to sever the filaments and form fibres, the rear ends of which are sucked on to the band 20 by air currents passing into the perforations 28, the currents being concentrated on the cutter by a shield 29. On operation of the cutter, a deflector member 32 is moved temporarily to the right, as shown in Fig. 3, to disengage the cut ends of the filaments from the blades of the cutter. As the deflector moves back to its normal position, the air blast is re-started. The rate of movement of the band 20 and the rate of feed of the filaments are so adjusted that the groups of cut fibres overlap so as to form a continuous assembly 33, Fig. 4, which is fed forward to rubbing bands 34 driven by rollers 35. The lower rubbing band is reciprocated transversely by crank mechanism 36 so as to compact the assembly into a substantially cylindrical staple fibre product 37 which is twisted into a yarn 38 and wound on a bobbin 39 by a ring spinning device 40. Specifications 410,805 and 484,191 are referred to.