| 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 |