Spinning apparatus for spun yarn

Details Spinning apparatus for spun yarn Spinning apparatus for spun yarn

1976-05-03

1978-09-12

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Delivery twist type

57 5, 57 34AT, 57 773, 57157F, D01H 528

Patent

active

041126580

ABSTRACT:
This invention relates to a spun yarn spinning machine of the air injection type, which has first and second yarn twisting devices disposed between front rollers and delivery rollers. These first and second yarn twisting devices have air injection nozzles for injecting air obliquely fed toward the delivery roller side. These air injection nozzles of the first and second yarn twisting devices open into the cylindrical yarn passages of the yarn twisting devices so that the twisting directions of the yarns are in counter direction with each other tangentially of the passages at a predetermined angle with respect to the central axis of the passages of the first and second yarn twisting devices. The first yarn twisting device also has an untwisting device associated therewith for loosening the fibers before the fibers once twisted by the injected air in the first yarn twisting are fed into the second yarn twisting device.

REFERENCES:
patent: 3079746 (1963-03-01), Field, Jr.
patent: 3367095 (1968-02-01), Field, Jr.
patent: 3775955 (1973-12-01), Shah
patent: 3802174 (1974-04-01), Landwehrkamp et al.
patent: 3978648 (1976-09-01), Yamagata et al.

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