High speed rotary body for false-twisting

Details High speed rotary body for false-twisting High speed rotary body for false-twisting

1976-01-19

1977-12-13

Queisser, Richard C.

Textiles: spinning, twisting, and twining

Apparatus and processes

Receiving twist type

57100, 318221E, D02G 106

Patent

active

040621766

ABSTRACT:
A high speed rotary body for false-twisting comprising a tubular body in the hollow portion of which a pin element is perpendicularly fixed. The yarn to be crimped is fed into the hollow portion, looped with one turn around the pin element and delivered to a take-up bobbin. The pin element is integrally formed with three portions i.e. a smaller cylinder, a larger cylinder at one of the ends of the smaller cylinder and a truncated conical portion at the other end thereof. The intersection of the smaller and larger cylinders forms a step. When the incoming yarn portion precedes to touch the step, this portion occupies the center of the tubular body so as not to balloon during the crimping operation.

REFERENCES:
patent: 3180074 (1965-04-01), Smith
patent: 3778991 (1973-12-01), Brummer

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