241 / | HD | SOLID MATERIAL COMMINUTION OR DISINTEGRATION |
* | DD | APPARATUS {41} |
198.1 | DF | .~ Cooperating comminuting surfaces (e.g., jaw crusher) {5} |
220 | DF | .~.~ Rotary surface (or surfaces) {2} |
221 | DF | .~.~.~ Circumferential or tangential flow of material (e.g., roll mills or roll and concave mills) {7} |
222 | DF | .~.~.~.~ With material feed and/or discharge mechanism or control {2} |
224 | DF | .~.~.~.~.~ Hopper {1} |
225 | .~.~.~.~.~.~ With roll or rotary material agitator |