PNEUMOMECHANICAL ROTARY SPINNING DEVICE Russian patent published in 1995 - IPC

FIELD: textile industry, in particular, spinning. SUBSTANCE: spinning rotor is mounted with its bottom part on drive shaft. Spinning rotor has conical slide surface, which is widening towards rotor collecting rotor surface. Bottom part of rotor is provided with coaxial annular protrusion, whose end is spaced relative to rotor diametrical plane extending through collecting surface towards yarn outlet chute. Conical inner surface of annular protrusion is widening towards fixed yarn outlet chute. Annular space for passage of yarn is defined between annular protrusion and chute. Protrusion end faced towards chute is provided with pointed edge adapted for yarn bending. Chute end is disposed within annular protrusion for pressing yarn to protrusion inner conical surface. EFFECT: increased efficiency in forming yarn. 3 cl, 1 dwg