False twisting spindle

Details False twisting spindle False twisting spindle

1974-07-05

1976-01-27

Watkins, Donald E.

Textiles: spinning, twisting, and twining

Apparatus and processes

Receiving twist type

57 7745, D01H 792

Patent

active

039343987

ABSTRACT:
False twisting device for producing crimped filamentary yarns by introducing the filament into a cylindrical hollow of a hollow spindle, winding it around a twisting pin mounted transversely in the cylindrical hollow and taking out the filament therefrom, wherein a center point of the minimum diameter portion of the twisting pin is displaced from a rotational center axis of the hollow spindle, both in the vertical and parallel directions as related to the axial line of the twisting pin respectively, so that the filament rotated together with the hollow spindle therein is positioned concentrically with the rotating center of the hollow spindle.
Said hollow spindle is mounted in a housing and supported by air bearings and it is rotated by applying compressed air to turbine blades which is provided on the circumference of the cylindrical hollow.

REFERENCES:
patent: 2463619 (1949-03-01), Kunzle
patent: 2655781 (1953-10-01), Heberlein et al.
patent: 2777276 (1957-01-01), Klein
patent: 3475895 (1969-11-01), Raschle
patent: 3759025 (1973-09-01), Takai et al.

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