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 method of making a core yarn in which a pair of flattened slubbings or fiber-fleece strips are passed through a stretching arrangement comprising a plurality of pairs of rollers, the slubbing being engaged in the nips of the rollers, with the core thread being fed to each of the slubbing strips in the nip of the last roller pair. According to the invention, the two slubbing strips are passed directly adjacent one another (either in contact or with a small spacing) through the nip of the last roller pair and immediately downstream thereof, the combination of strips and the respective core threads are spun together.

Abstract: A slubbing is formed into a thin band by a plurality of pairs of rollers. A core filament is thereafter applied to each face of this band and the two core filaments and band are then spun together to form a core yarn comprising a coherent mass of fibers in which is imbedded a pair of parallel and spaced apart core filaments with some of the fibers of the mass between the spaced-apart filaments.

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.