| 241 / | HD | SOLID MATERIAL COMMINUTION OR DISINTEGRATION | 
| * | DD | APPARATUS {41} | 
| 277 | DF | .~ Rotating comminuting surface {5} | 
| 280 | DF | .~.~ With means to force material toward periphery of comminuting surface {2} | 
| 282 |  | .~.~.~ Radially arranged rectilinearly reciprocating follower |