Method for stretching a fibrous or film-like material

Details Method for stretching a fibrous or film-like material Method for stretching a fibrous or film-like material

1980-03-24

1982-09-14

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Dividing work to form plural articles

26 88, 264154, 2642888, 2642902, B29C 1702

Patent

active

043495001

ABSTRACT:
A method is disclosed for transversely stretching a fibrous or film-like material. The material is subjected to a monoaxial transverse stretch which progresses divergently along an arcuate track. An apparatus to implement this method is also disclosed, which essentially comprises a pair of pulleys and a pair of V-belts cooperating in releasably gripping therebetween opposite selvages of a given material, the pulleys being rotative in the same plane in opposite directions so that the material is stretched along a progressively diverging arcuate track.

REFERENCES:
patent: 2988772 (1961-06-01), Horn
patent: 3254148 (1966-05-01), Nicholo
patent: 3581344 (1971-06-01), Sederlund et al.
patent: 3807004 (1974-04-01), Andersen

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