1301334 Winding yarn packages OWENSCORNING FIBERGLAS CORP 30 Sept 1970 46620/70 Heading D1J A winder for packaging linear material comprises a package winding spindle 42, a yarn traversing member 71 disposed with its length dimension extending lengthwise of the spindle 42, and a slot in the yarn traversing member 71 for engaging the linear material en route to the spindle 42 and guiding it across the package, the slot extending transversely to the length of the member 71 for a distance sufficient to keep the linear material from contacting the closed end of the slot throughout the build-up of the package so that the path of the linear material remains in a straight line as it passes through the slot, the means for reciprocating the traversing member 71 comprising a member that rotates about an axis normal to the longitudinal axis of the member 71. The yarn traversing member 71 has a slot 120, 121 at each end so that two separate packages 36, 37 can be built-up simultaneously on the spindle 42. A cam 75 causes a shaft 61 carrying the traverse member 71 to oscillate at a slow rate. An arm 81 coupling the traversing member 71 to the periphery of a driven disc 80, provides a faster superimposed traverse of the member 71. A drive mechanism 100 for the disc 80 is -carried by the arm 61. Fig. 8 shows how the guide 71 can be set at various positions. A bracket 109 carrying rails between which the guide 71 slides is rockable on axis 101. The axis 101 is carried by a unit 100 rockable about the shaft 61. Locking means hold the guide 71 at its desired setting. In Fig. 10 the switch 142 is closed to energise motor 45. The clutch 46 is not energised until a foot operated switch 144 is closed, whereupon the spindle 42 rotates. Thereafter the operator wraps the strands on the spindle 42 outwardly of two sleeves 34 and 35. When the spindle 42 and the guide 71 attain proper speeds, the advancing strands are moved to engage the slots 120 and 121 of the guide 71. Construction of the packages 36 and 37 then begins. As the packages build up, the r.p.m. of the spindle 42 and the disc 80 are progressively reduced by a programmer 140 through the controlled collapse of the flux density of the clutch 46, the speed ratio between the spindle 42 and the disc 80 being maintained. The reduction in speed is such that the strands keep a substantially constant linear speed throughout the build-up of the packages 36 and 37. The strands freely move towards the closed end of the slots, but do not touch the slot ends to ensure that the tension remains substantially uniform through package buildup. The strands 22 and 23 remain in straight line disposition as they are traversed along the sleeves 34 and 35. When the packages 36 and 37 are wound, the spindle 42 may be stopped by a suitable braking means such as shown schematically in Figure 10. An air-operated disc brake arrangement stops the spindle 42 when an air-operated cylinder moves clamps 152 to engage a disc 151 located on the shaft 53. As the clamps 152 engage, the disc 151 to stop the rotation of the spindle 42, electric power is simultaneously broken to eddy current clutch 46. When the spindle 42 stops, the operator removes completed packages 36 and 37 and places new sleeves on the spindle 42.