Abstract: A fluid flow suppressor for use with a number of running threadlines comprising a pair of plates which are rotatable about a common axis substantially parallel to the threadlines, the plates being provided with apertures through which the threadlines may be threaded when the apertures are superimposed and a number of slots corresponding to the number of threadlines, the slots in one of the plates opening into the right hand side of the aperture in that plate and the slots in the other of the plates opening into the left hand side of the aperture in that other plate, the slots being so disposed that on rotation of the plates they superimpose on each other.

Abstract: An improved yarn guide assembly for selecting yarns individually from a group in the donning of a multicop winder, the assembly being of the kind in which each gap in a row of guide members is shaped to receive a yarn only if it lies in a unique plane, the improvement being that the yarn guiding surfaces of the guide members immediately beyond the gaps, are inclined to, and at least partially face, the direction from which the yarns approach the gaps and, optionally, that each guiding surface immediately beyond the gaps contains at least one ratchet notch.