Abstract: A yarn-twisting apparatus comprises a spindle receiving the supply spool or bobbin, a rotating can or sleeve surrounding the spool and the bobbin, a yarn takeup arrangement for drawing the yarn from the upper end of the can, and a housing surrounding the can. According to the invention, the stationary housing and the upper and lower ends of the spindle are provided with closures which reach close to the spindle at the bottom and form an opening traversed by the yarn at the top. Means is provided for enabling the upper closure to be removed or displaced for ready access to the interior of the housing. The system reduces the power consumption required for twisting the yarn.

Abstract: A take-up spool for winding a filament under tension, e.g. preparatorily to its passage through a heating tunnel or other treatment zone, has a core bounded by a pair of cheeks which bracket two parallel rollers freely supporting the core through the filament body being wound thereon. At least one of the rollers is driven to rotate the spool; the other roller may be transversely movable to increase the gap between the rollers for letting the loaded spool drop onto a conveyor or into a receptacle.

Abstract: A horizontally elongated machine for twisting a plurality of different yarns has at least one longitudinally extending drive shaft. A plurality of horizontally extending and vertically spaced rows of twisters is provided on each side of the machine with each twister being rotatable about a respective axis perpendicular to the longitudinal direction of the machine. The twisters are driven in groups of two or four by a common flat belt spanned over the respective whorls of the twisters and over a single drive pulley on the drive shaft. A takeup device for each of the twisters is provided directly above the twister.