Patent GB-458473-A (GB)
Title: Improvements in or relating to machines for winding yarn and the like
IPC: B65H54/14
Filed: 1935-06-18
Abstract: 458,473. Winding yarns &c. MARSDEN, C., 5, Camp, Ahmedabad, Bombay, India. June 18, 1935, No. 17542. [Class 120 (ii)] In a yarn or like winding machine having an extension on the traverse rod carrying a progression wheel and a former bar on the traverse rod which laterally displaces the extension relatively to the rod at the commencement of the formation of a package for the purpose of building the heel thereof, the former bar is adapted to be received in a slot in the traverse-rod extension and is formed with an inclined face or edge adapted to co-operate with the interior of the hub of the progression wheel; the traverse-rod extension may be adjusted laterally of the rod to enable packages of different diameters to be wound by an adjustable stop member mounted directly on the former bar and adapted to engage a member on the traverse-rod extension. The winding spindle 13 is adjustably connected by grub screws to a clutch driven from a pulley and to a worm driving a worm wheel formed with a grooved cam actuating the reciprocating traverse rod 40, and, as shown, the screwthreaded extension 43, carrying the progression wheel 58 is pivoted to the rod 40 at one end through the medium of the former bar 46 and at the other end is mounted in a universal joint 54 in a sleeve 55 adjustably fixed to the machine frame. The former bar 46 lies in the slot of the extension 43 and has a radial slot 47 engaging a pin 48 in the extension ; the pin 48 is connected by a tension spring 49 to a pillar 50 fixed to a bracket 51 on the bar 46 and the spring moves the extension 43 away from the spindle 13, the extent of such movement being adjusted by a screw 52 passing through the bracket 51 and engaging the pin 48. When commencing winding on a plain cop tube the progression wheel 58 carrying the usual thread guide stirrup 61 is released from the extension 43, by disengaging a spring 60 in the hub of the wheel from the threads of the extension, and moved to the base of the cop holder so that the interior of the hub co-operates with the inclined edge of the former bar 46 and tilts the extension 43 about the joint 54 and at an angle to the axis of the traverse rod ; as the winding proceeds, the spring 49 urges the extension 43 towards a position in line with the traverse rod so that the heel of the cop is given the desired tapering shape and by adjusting the screw 52 and the sleeve 55 the distance of the extension 43 from the axis of the spindle 13 may be adjusted to suit the diameter of the cop to be wound. When winding on a conical-ended pirn the spindle 13 is adjusted so as to bring the point of commencement of the winding on the pirn opposite a point on the rod 40 where the former bar is inoperative. The length of the cop wound is determined by a stop adjustable along a rod 65, the progression wheel contacting with the stop at the end of its movement along the extension 43 and shifting the rod 65 to stop the machine ; the movement of the rod 65 rotates a latch to effect the release of a dog normally holding a bar against rotation by a spring, rotation of the bar forcing a wedge member into a wheel on the spindle clutch and moving the latter so that it is disengaged from the driving pulley. The grooved cam actuating the traverse rod has its feed and return portions of different length and so formed that the speed of movement of the rod varies during each stroke to form a firm chase on the cop. Specifications 24611/08, [Class 120], 458,484, and 458,485 are referred to.