| 414 / | HD | MATERIAL OR ARTICLE HANDLING |
| 147 | DF | CHAMBER OF A TYPE UTILIZED FOR A HEATING FUNCTION AND MATERIAL CHARGING OR DISCHARGING MEANS THEREFOR {6} |
| 160 | DF | .~ Charging of chamber {7} |
| 172 | DF | .~.~ By driven device for transporting material to and/or into, or into and within, chamber {9} |
| 173 | DF | .~.~.~ Plural, successive, driven devices {2} |
| 174 | DF | .~.~.~.~ Thrower and at least one feeder conveyor therefor {2} |
| 175 | | .~.~.~.~.~ Including screw conveyor |