Method and apparatus for doubling and twisting a yarn by a two-s

Details Method and apparatus for doubling and twisting a yarn by a two-s Method and apparatus for doubling and twisting a yarn by a two-s

1976-08-12

1977-08-09

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Web material

57 76, 57 90, 57156, D01H 108

Patent

active

040402401

ABSTRACT:
A method and apparatus for doubling and twisting a material yarn by a two-step changeover system by utilizing a pot twisting and winding device is disclosed. To produce a doubled and twisted yarn having a yarn configuration of two component yarns forming the yarn in a balanced condition, when the second step operation is carried out so as to double a primary twisted yarn of a yarn package formed in the pot by a first step operation with a yarn fed from a supply source and twist this doubled yarn while eliminating the primary twists imparted to the material yarn, the position of the bottom end of the traverse tube in the pot must be controlled so as to satisfy a particular condition D.sub.2 .gtoreq. L.sub.2, where D.sub.2 represents an inside diameter of the full size yarn package formed in the pot by the first step operation, while L.sub.2 represents a distance between the bottom end of the traverse tube and an inside bottom surface of the pot.

REFERENCES:
patent: 3111804 (1963-11-01), Beyer
patent: 3430428 (1969-03-01), Asami et al.
patent: 3475891 (1969-11-01), Matsuoka et al.
patent: 3834150 (1974-09-01), Ottewell et al.

Affiliated with

Also associated with

Rating

Method and apparatus for doubling and twisting a yarn by a two-s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for doubling and twisting a yarn by a two-s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for doubling and twisting a yarn by a two-s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1220695