Title: Method and apparatus for the production of staple slivers from tows of filament fibers

Abstract: A method and apparatus for producing staple fibers of a predetermined length from a substantially endless tow of fibers. The tow of fibers is fed onto needles carried in rows on a carrier under tension. The carrier is rotated past a cutting area and a depositing area. As the rows of needles pass the cutting area the tow of fibers is raised away from the surface of the carrier to enable cutting of the fibers by a cutter blade. The cut fibers are held by the needles until such reach the depositing area wherein the particular row of needles is retracted to deposit the cut fibers on a receiving means.

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Inventors: Lubitzsch, Wolfgang (Lubeck-Gr. Steinrade, DT)

Application Number: 547257
Filing Date: 1975-02-05
Publication_date: 1976-03-16
Assignee: Schubert & Salzer Maschinenfabrik Aktiengesellschaft (Ingolstadt, DT)
Primary Class(es): 83/23 83/329, 83/423, 83/913
Other Classes:
US Patent Ref:

2154256	Apr, 1939	Zimmerman	83/423.
2397047	Mar, 1946	Roberts	83/423.
3448647	Jun, 1969	Miller et al.	83/423.
3768356	Oct, 1973	Gamble	83/423.
3866499	Feb, 1975	Messner	83/423.

Other Refs: 253,666

Apr, 1967	OE

Primary Examiner: Yost, Frank T.
Assistant Examiner:
Attorney: Bailey & Dority