Device for twisting a yarn by means of a double twist device

Details Device for twisting a yarn by means of a double twist device Device for twisting a yarn by means of a double twist device

1980-04-29

1982-02-16

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Unitary multiple twist devices

57 5883, 57 5884, D01H 786

Patent

active

043153976

ABSTRACT:
A double twist spindle comprising a shaft adapted to be rotatably driven, the shaft having a first end to be supported on a machine frame, a package carrying assembly rotatably mounted at the opposed end of the shaft for rotation independently of the shaft, the assembly including a base for supporting an end of a bobbin, a hollow axle co-axial with the shaft, and a magnet for retaining the assembly against rotation with the shaft, and a bowl element fixed to the second end portion of the shaft for rotation with the shaft. The bowl element comprises a hollow bowl which is co-axial with the shaft, which extends around the package carrying assembly, and which has a conduit defining a yarn passage with a yarn outlet. The hollow bowl has a first part which is of truncated conical shape in the region of the yarn outlet, the first part having a gradual slope, and has a further part which extends from the diverging end of the first part, the first part having a concave bell mouthed configuration.

REFERENCES:
patent: 2939268 (1960-06-01), Rehn
patent: 3066472 (1962-12-01), Klein
patent: 3475892 (1969-11-01), Taira et al.
patent: 3481134 (1969-12-01), Whewell, Jr.
patent: 3685269 (1972-08-01), Matas-Gabalda

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