False twister
AssigneeKugelfischer Georg Schafer & Co.
InventorFriedrich Schuster
Life of this patent
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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.
Claims9
In an apparatus for false-twisting threads by means of friction discs which comprises three rotatably mounted mutually parallel spindles, each provided with at least one friction disc, the disc or discs on each spindle overlapping the discs on the other two spindles, and means for passing the thread to be false-twisted over the discs along a substantially helical path, the improvement which comprises providing one of the friction discs with a rotating twist stop edge disposed to interrupt the helical path of the thread in a kink-like manner on the exit face.
In an apparatus for false-twisting a thread having three rotatably mounted spindles each carrying a plurality 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, the improvement wherein the friction disc immediately adjacent to the point of exit of the thread from between the friction discs has a sharp peripheral edge over which the thread moves as it emerges from its zig-zag path whereby a substantially uniformly constant false twist is imparted to the thread.
Dependencies are inferred from the claim text.