Patent GB-738821-A (GB)
Title: Yarn or thread pack and method of and means for its preparation
IPC: B65H55/04
Filed: 1952-06-09
Abstract: 738,821. Yarn packages. BUDDECKE, H. June 9, 1952 [June 9, 1951], No. 14434/52. Class 94 (1). [Also in Group IX] A yarn package is formed from a strip comprising transversal, oblong, helicoidally-coiled, overlapping windings, which is spirally wound with a separating leaf strip to form a cylinder or like prism. In the package shown in Fig. 4 comprising yarn coils 1 and leaf strips 2, the end 3 may be withdrawn uninterruptedly from the package in axial direction thereof: at the end 5 the leaf strip convolutions are glued together by means of a flap 6. Two or more coils with separating strips may be superposed and wound as shown in Fig. 2, or, as shown in Fig. 13, two types of yarn may be contained in a double package in the centre of which the separating strip is creased at 13 to form a groove 14. The package may be contained in a wrapper of paper or cardboard 7, Fig. 6, provided with a lid 8 and an opening 9 closed by transparent material, e.g. regenerated cellulose foil, which may be coloured to filter out rays harmful to the yarn: the windings of the strip 2 may be glued at the bottom in such manner that their shape is retained after the yarn has been withdrawn. In order to permit limited withdrawal of the package from its wrapper, a strip 11 is connected at its ends to the bottom 12 of the wrapper and the bottom 5 of the package, Fig. 12: alternatively, a piece of cardboard 5<SP>1</SP> is glued to the end 5, Fig. 22, extending with its edge portions beyond the periphery of the package and co-operating, for example, with tongues 11<SP>1</SP> pressed in the wrapper. If the wrapper is dispensed with, the leaf strips may be provided with openings such as 9. The package may be produced continuously or by stages. In the operation of the apparatus shown in Figs. 14 and 16, a turntable 17 is rotated so that yarn leading from a spool 18 through a thread guide 19 is coiled round a stationary hollow mandrel 16 housing a driven endless band 20 guided by rollers 21, 22, 23, 24, to cause the lateral faces formed by the band 20 to move in the same direction so that the windings are continuously moved and stripped therefrom. The windings are flattened by means of an endless band 31 driven by a roller 32, into overlapping position and wound with a strip 2 fed from a supply roller 26 by rollers 27, 28, on to a roller axle 29 which is supported on a vertically adjustable frame 34 and which may be one of several such axles mounted on a star wheel or turret head. An edge of the strip destined to form the end of the package whereat the windings are to be glued may be beaded as by a roller 56. With the apparatus illustrated in Fig. 17, yarn 1 is coiled on a frame or coil former and the assembly placed on a vertically adjustable table 51 with the interposition of the strip 2 reeled off the roller 26 and, after pressing down an adjustable plate 52, the frame is collapsed and withdrawn from the yarn: the windings are pressed flat and into overlapping relation by the plate 52 which is then raised, and a roller 29 is rotated to wind the package. In the operation of the device shown in Fig. 21, a yarn 57 drawn from a stationary spool is wound in coils over pins 62,63 by means of an oscillating thread guide 61. The pins 62, 63 are mounted on endless strips 64, 65, moved in such a way that yarn coils are formed round pin couples 62, 63, moving from the left uncharged coiled yarn 1 moves across a table 66 and is flattened with the coils in overlapping relation by an endless band 67, the pins being withdrawn from the coils as a result of the diverging paths of the strips 64, 65: the yarn coils, together with a separating strip 2 notched at 73, are wound on a roller.