D - Textiles – Paper – 21 – D
Patent
D - Textiles, Paper
21
D
92/42, 92/43
D21D 5/00 (2006.01) B02C 2/10 (2006.01) B02C 7/12 (2006.01)
Patent
CA 1180926
ABSTRACT OF THE DISCLOSURE In a rotor and companion stator refining arrange- ment of the cone, disc or cylindrical type, the rotor and stator having refining edges in the form of spirals, accord- ingly spiral refining edges on their refining faces and wherein the spirals on the rotor extend in a direction opposite to that on the companion stator, the improvement comprising the spiral refining edges comprise at least one substantially sharp apex-shaped ridge on the rotor and at least one substantially sharp apex shaped ridge on the stator, each of the ridges continuously extend across the refining faces of the rotor and stator, the spirals making at least one turn of the rotor and stator and the ridges being arranged one to another providing a substantially cir- cumferential feather-like intersection therebetween for imparting a sliding-gripping-pinching action to material introduced between the rotor and stator during relative rotation thereof, the material being discharged from the arrangement following one pass therethrough. Also disclosed are methods of refining material based on use of the dis- closed apparatus.
387006
Swabey Ogilvy Renault
Webster David R.
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