Patent GB-190524705-A (GB)
Title: Improvements in Apparatus used in Covering Wire or other Cores with Fibrous Material.
Inventor: HUTCHINS FREDERICK
Filed: 1905-11-29
Granted: 1906-11-01
Abstract: 24,705. Hutchins, F. Nov. 29. Wire and other cores, covering by winding.- Relates to improvements in apparatus of the kind described in Specification No. 6601, A.D. 1903, [Abridgment Class Electricity, Conducting &c.], for covering a wire, roving, yarn, thread, cord, or other core with fibres of cotton, silk, rabbits' wool, or other fibrous material delivered to the core in an untwisted or very slightly twisted condition. The core 7, Fig. 2, passes through the centre of the spindle, which is mounted in white-metal bearings 37 and is lubricated from an oil reservoir 47. To the top of the spindle is secured a slotted head, shown separately in Fig. 7 ; the conical sleeve 17 is fitted over the taper 12, Fig. 8, and fixed by means of a nut 21, Fig. 6. Figs. 11 to 15 show in detail the means for gripping the core and for compacting the covering-fibres about it. Figs. 14 and 15 show in elevation and plan a spring holder 23 which is secured in position over the top of the spindle by the nut 6 ; it carries a spring piece 24, Fig. 13, which passes through the slot 14 in the spindle. The metal piece 25 shown in Figs. 11 and 12 is fitted over the part 15 of the divided end of the spindle. The various parts are shown assembled in Figs. 16 and 17. Over the top of the slotted head, Fig. 7, is removably fitted a wire-gauze disk 44, shown in Figs. 9 and 10. The spindle revolves in a fixed tube 4, Fig. 1, which communicates through an opening 30 with an exhaust chamber 6. The spindle head revolves in a tube 3, supported by an adjustable bead or projection 34 on the lower tube. Inside the top of the tube 3 is fitted a cupshaped stamping 26, Fig. 2, which rests loosely on the gauze disk 44. The loose roving or band of untwisted fibres is fed by drawing-rollers 2, preferably of the kind described in Specification No. 24,463, A.D. 1904, [Abridgment Class Electricity, Conducting &c.], to an opening 33 in the tube 3. The fibres are attracted towards the slots 19 in the rapidly-rotating head by virtue of the draught induced in the chamber 6 ; part of the air flows through the slots 19 and the rest through the gauze disk 44, the combined current then passing tbrough holes 18 in the base of the head to the opening 30. The action of the slot 19 is to pick up and separate the fibres from each other, after which they are impelled, under the influence of the air vortex formed, over the top of the head to the centre of the gauze disks 44 where they are lapped around the core and compacted about it by the spring devices previously described. The slots 19 are made sufficiently narrow to prevent the fibres from passing through directly into the interior of the rotating head. A shelf 28 prevents the fibres from passing from the opening 33 directly on to the gauze disk. An air-tight joint is formed between the rotating head and the side of the tube 3 by means of a paper, cloth, or like washer 47, Fig. 2, clamped between two rings 31, 36. The Provisional Specification states that a series of fine grooves may be cut in the ribs of metal between the slots 19, the serrated edges so formed having a combing action upon the fibres.