(under subclass 400) Subject matter wherein the twist is produced by subjecting both the free end of the strand and the supply of discrete fibers to the action of a fluid vortex.
(1) Note. Devices found herein are also referred to as "Gotzfried" type devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
289, for false twist crimping employing a fluid jet.
333, for fluid jet false twisters, per se. 350, for other twisting operations combined with fluid jets.
SEE OR SEARCH CLASS
28, Textiles: Manufacturing, 254+, and 271+ for texturing by means of a fluid jet.
