Abstract: An apparatus for false twisting a thread has three spindles each carrying friction elements and disposed, in plan view, at the corners of an equilateral triangle. Both ends of each of the spindles are mounted in bearings on a frame. A removable spacer is provided at each end of the frame and a resilient means urges each spindle against the spacer. The apparatus has a simple construction which can be easily disassembled to replace a spindle, friction element or bearing.

Abstract: An apparatus for false twisting threads has three spindles arranged to rotate about substantially parallel axes and fixed at the corners of a triangle centered on the mean path of the thread with friction elements carried by the spindles overlapping each other and means for moving a thread from a position outside the friction elements into a position where the thread follows a zig-zag path between the friction elements and is twisted thereby through an intermediate position where the thread first engages only some of the friction elements and is then moved into position for full rotation.

Abstract: A false twisting apparatus having three spindles supporting over-lapping friction discs and having a means for feeding a thread between the friction discs where it will be false twisted and into a balloon preventing member is provided with an improved means for threading the apparatus by moving a thread into position between the friction disc comprising a thread guide member on an arm supported by a rotatable shaft with the guide member above the friction disc, the rotatable shaft being rotatable from a position where the guide member is disposed above the gap between the edges of the friction disc to where the guide member is disposed outside the friction disc and a thread slide member supported on a shaft and projecting inwardly between longitudially spaced friction discs, the slide member having arcuate shaped edges over which the thread can slide as it is moved by the thread guide member into or out of the gap between the friction members.

Abstract: An apparatus for false twisting a thread having three rotatably mounted spindles each carrying a pluralilty of friction discs which overlap each other and means for passing a thread along a zig-zag path between the spindles and over the edges of the friction discs is provided with at least one friction disc having a twist stop edge which interrupts the helical path of the thread in a kink-like manner at the exit end of the path of the thread.