Patent GB-563856-A (GB)
Title: A warping or beaming machine
IPC: D02H3/00
Filed: 1942-07-24
Abstract: 563,856. Warping and beaming yarns. LAMBACH, F. July 24, 1942, No. 10375. Convention date, Nov. 21, 1941. [Class 142 (iv)] The electromotor 46 for driving the beam 44 of a warping or beaming machine is controlled by a manual electrical adjusting means for determining its normal speed, and is automatically controlled so that its speed is reduced as the winding builds up on the beam. Electrical control means may also be provided to allow the beam to be rotated at inching speed. The electromotor 46 is connected with a generator for producing direct current and a hand rheostat 350 is provided for controlling the voltage of the current supplied to the electromotor. The automatic control means comprises a rheostat 258, the shaft 266 of which carries a pinion 264 operated by a rack 262 upon a vertically movable carriage 178. The carriage 178 is moved by a lever 172, adjustably secured to a crank 170 which is rotated when a pressure roller 132 moves away from the axis of the beam 44 as the winding grows. A trapezoidal reed 42 is supported upon the carriage 178 so that as the winding builds up the reed is lifted to accommodate the raised warps 34. The reed can also be manually adjusted horizontally, and vertically to obtain a correct initial setting to suit the arrangement and type of warps to be beamed. A brake 296 may be provided for arresting the drive to the beam, and a second brake 326 may be applied to the pressure roller 132, and the two brakes may be simultaneously applied. The brake 296 may be applied by the action of a solenoid 318 when the beam is arrested either by a hand switch 414 or automatically by an electrical stop motion actuated either upon breakage of a yarn or upon the completion of the winding. A time relay may be' associated with the solenoid so that the brake 296 is released at a predetermined time after the application of the brake. The electrical stop motions may be as described in Specification 563,857, [Group XXXVII], and a speedometer and revolution counter may be provided for the beam. The beam 44 is supported at one end by the driving head 50 keyed' to the shaft 52 of the electromotor 46 and at the other end by an idling head 80. The idling head is carried in a bearing 76 arranged on a bracket 56 pivoted upon members 60 slidably mounted upon the machine frame so that beams of different length can be supported. The bracket 56 is locked in the upright position supporting the beam by a screw 70. Adjustable rest bars 100 are provided for supporting the beam before it is held by the heads 50, 80. The idling head 80 is spring-pressed towards the beam to allow for slight differences in the lengths of beams of a standard size. The pressure roller 132 is pressed against the beam by a weight 164 and may be moved by hand completely away from the beam so that a full beam can readily be removed axially. To prevent the reed being lifted too high and consequent damage to the warp when the pressure roller is so moved, the lever 172 and crank 170 are held in relative angular position by a spring 186, and an adjustable stop 272 is provided to engage an abutment 274 upon the sliding carriage 178. The pressure roller 132 is mounted so that it can readily be replaced by another of different length. A device for holding a temporary unwinding of a portion of the warp, e.g. upon yarn breakage between the creel and the beam, may be pro. vided as described in Specification 563,855. Specifications 563,880 and 563,881 also are referred to.