imparting twist by contact of fibres with a running surface

Full Title

Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques > imparting twist by contact of fibres with a running surface

Child Classifications

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• D01H 4/06 co-operating with suction means (D01H4/08, D01H4/16 take precedence)
• D01H 4/08 Rotor spinning, i.e. the running surface being provided by a rotor
• D01H 4/16 Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum
• D01H 4/22 Cleaning of running surfaces