Method and apparatus for producing a draftable twisted roving

Details Method and apparatus for producing a draftable twisted roving Method and apparatus for producing a draftable twisted roving

1978-07-13

1979-04-03

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Receiving twist type

57 75, 57124, 57343, 57348, D01H 100, D01H 702, D01H 792

Patent

active

041470192

ABSTRACT:
The supplied strand is provided with a permanent twist due to the rotating balloon and a superimposed false twist due to a false twist device prior to winding onto the bobbin package. Prior to winding on the package, the false twist is eliminated so that the resultant roving has relatively high breaking strength for handling purposes while remaining draftable.
The false twist device is located between the delivery rolls and spindle to rotate coaxially around the spindle and may be driven by the balloon or by a positive drive.

REFERENCES:
patent: 743139 (1903-11-01), Booth
patent: 815075 (1906-03-01), Doll
patent: 1174961 (1916-03-01), Beede
patent: 1724200 (1929-08-01), Hubbard
patent: 1838682 (1931-12-01), Ingham
patent: 2131893 (1938-10-01), Jessen
patent: 2197530 (1940-04-01), Purser et al.
patent: 3106055 (1963-10-01), Mackie
patent: 3724195 (1973-04-01), Moore
patent: 3785140 (1974-01-01), Muller

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