Grinding discs for defibering fibrous material

Details Grinding discs for defibering fibrous material Grinding discs for defibering fibrous material

1975-03-06

1976-08-17

Arnold, Donald J.

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

51209R, 51293, B02C 1320

Patent

active

039749711

ABSTRACT:
Grinding discs in apparatus for manufacture of pulp composed of a support disc and segments mounted on said support disc so as to form a ring. The segments are formed with ribs and grooves for breaking down the material to be ground. The outer and inner peripheral edges form together common edge lines following a wave-shaped contour line. The invention also includes a method of manufacturing segments which when annularly mounted on a support disc present wave-shaped common outer and inner peripheral edge lines.

REFERENCES:
patent: 1269762 (1918-06-01), Warner
patent: 1306610 (1919-06-01), Morgan
patent: 2334642 (1943-11-01), Moore
patent: 2577937 (1951-12-01), Waldron et al.
patent: 2989826 (1961-06-01), Lamesch
patent: 3068618 (1962-12-01), Lamesch
patent: 3459379 (1969-08-01), Brown
patent: 3539315 (1970-11-01), Bidwell

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