Title: Two-for-one twisting process

Abstract: A two-for-one twisting process for twisting two or more individual strands being taken off from separate feed spools or packages arranged in sequence along a common twisting axis at spaced intervals, the strands being doubled or plied together along the twisting axis in a forward take-off direction, wherein the completely plied strands passing the final feed package are deflected and returned backwardly in a rotating balloon pattern by means of at least one rotating twisting disc such that a single balloon envelops each feed package with the plied strands crossing and finally meeting the twisting axis behind each package. The process is useful for plying and twisting all types of filamentary or stranded materials.

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Inventors: Hartig, Wolfgang (Remscheid, DT)
Berges, Dietrich (Marienheide, DT)

Application Number: 549089
Filing Date: 1975-02-11
Publication_date: 1976-11-23
Assignee: Barmag Barmer Maschinenfabrik Aktiengesellschaft (Wuppertal, DT)
Primary Class(es): 57/58.32 57/58.54, 57/58.63, 57/58.83
Other Classes:
US Patent Ref:

1263405	Apr, 1918	Groudahl	57/58.
3475892	Nov, 1969	Taira et al.	57/58.
3613348	Oct, 1971	Costa	57/58.
3648449	Mar, 1972	Greive	57/58.
3726074	Apr, 1973	Peene	57/58.
3830050	Aug, 1974	Ueda	57/58.

Other Refs:
Primary Examiner: Queisser, Richard C.
Assistant Examiner: Gorenstein, Charles
Attorney: Johnston, Keil, Thompson & Shurtleff