Patent GB-412271-A (GB)
Title: Improvements in or relating to winding machines for yarn or the like
IPC: B65H54/24
Filed: 1932-12-23
Abstract: 412,271. Yarn and like winding- machines. UNIVERSAL WINDING CO., 95, South Street, Boston, U.S.A. Dec. 23, 1932, No. 36543. Convention date, Aug. 17. [Class 120 (ii).] In a machine for winding yarn or the like comprising a number of winding units 35, Figs. 2 and 4, angularly spaced around an axis about which they travel, the winding units are arranged to travel around a circular trackway 3 and a rotatable winding spindle driving-ring 52 is provided which is disposed concentrically with the trackway 3 and arranged to rotate the driving shafts 48 of the winding units. The driving ring 52 is rotated in the opposite direction to that in which the units 35 travel around the trackway 3. Each winding unit 35, which may be of the type described in Specification 365,080, is mounted on a bracket 36 bolted to the travelling carrier ring 2 which is mounted on the face 7 of the trackway 3 by rollers 14. The ring 2 is provided on its inner flange with a ring gear 18 having rack teeth and is driven by an electric motor 20 through reduction gearing 25 and a pinion 30 engaging the rack 18. The package P on the winding spindle 43 is rotated by a drive roll 45 having helical grooves 46, 47 as described in Specification 339,679, [Class 120 (ii)]. Alternatively the roll 45 may be plain and a reciprocating thread-guide be provided. The drive roll 45 is carried on and rotated by the horizontal shaft 48, a pulley or driving wheel 51 on each shaft 48 being rotated by peripheral contact with the driving ring 52 which rests on the pulleys 51. Each. winding spindle 43 is carried by an arm 53 swivelled in a bearing 54 on a Y-shaped lever 55 secured on a rod 56 in a bearing 57. The carrier ring 2 is driven slowly anti-clockwise and the driving ring 52 more quickly clockwise by an electric motor 61 through a pinion 60 engaging rack teeth in the top of the ring. As described in Specification 412,276 gaps or depressions 59 are spaced at intervals along the bottom driving surface of the ring 52 to check momentarily the speed of the driving-roll and thereby to disrupt the synchronism between the rotation of the package and the traverse of the yarn to prevent ribbon winding. Each yarn passes from a supply bobbin b through a tension device 65 and across a guide 68 and a movable thread bail 66 associated with the stop-motion, to the package P. The thread bail 66 is pivoted at 67 to one end of a hingedly mounted guard member 69 carrying a pivoted knock-off lever 70 the lower end of which is normally held, e.g. as described in Specification 365,080, above the path of a series of cam plates 71 secured to the trackway 3. When the yarn breaks or the supply is exhausted the thread bail 66 swings outwardly and the lever 70 drops to engage one of the cam-plates 71. Then, as the winding unit revolves, the lever 70 rides up the curved edge of the cam 71 and the guard member 69 is swung on its pivot drawing forward a bar 74 and lifting the arm 55 to raise the package P off the drive roll 45. A starting handle 76 is provided on each bar 74. The operator may take up any position round the circumference of the machine and the rate of travel is preferably timed so that the yarn from one supply bobbin will be consumed during each revolution. When any yarn breaks or its supply is exhausted or the package P is completed the operation of the unit is arrested the break being repaired or the package doffed on passing the operator's station.