GB816821A - Improvements relating to textile spinning apparatus - Google Patents

Abstract

816,821. Textile spinning apparatus. DEERING MILLIKEN RESEARCH CORPORATION. July 1, 1955 [July 19, 1954], No. 19142/55. Class 120(2) Textile spinning apparatus comprises a drafting head, a rotatable spindle, a support member rotatably mounted on the spindle and stabilized against rotation, yarn collecting means carried by the support member and driven by the spindle, a yarn guide carried by the support member and positioned substantially on the extended axis of rotation of the spindle, and balloon driving means carried by the spindle and adapted to rotate a strand of yarn in its passage from the drafting head to the collecting means in the form of a balloon between the balloon driving means and the yarn guide and of maintaining a substantially lower mean tension in the yarn on reaching the spindle than in the balloon. In the embodiment shown a sliver or roving 14 from package 12 passes through a drawing head 18, through an axial passage in shaft 48 driven from an electric motor (not shown), out through an orifice 60, around a storage disc 62, then over the flier 63 to form a balloon. Thereafter it enters an apex assembly 132 and passes axially therethrough and thence via a pigtail guide 126 through a pair of conical feed rollers 124 and 126. The ballooning yarn tends to rotate the guide 142 of the assembly 132 in its bearings such tendency to rotation being opposed by a spiral spring 153. The resultant motion of the shaft 143 moves the guide 149 and thus varies the position of the yarn through the conical feed rollers 124 and 126 so that the rate of feed is varied depending on the tension of the yarn in the balloon. From the conical feed rollers the yarn passes via various guide pulleys to the traversing arm 174 such that it is wound on the yarn package 90 mounted on the core or mandrel 86 which is driven by gearing from the shaft 48. The platform 76 on which the various stationary parts are mounted is stabilized against rotation by eccentric weight distribution. The drafting head may be driven by gearing from the same electric motor as drives the shaft 48. In a second embodiment the traversing arm is replaced by a yarn traversing drum driving the package and a balloon restricting ring is provided. The axis of rotation of the spindle is also arranged at an angle to the path of the yarn from the drawing head and the axial path in the shaft 48 is arranged in an eccentric manner such that an intermittent drafting effect is produced on the strand between the drawing head and the spinning spindle. Specifications 773,891, 811,001, 811,002, 816,822 and 816,823 are referred to.