| 414 / | HD | MATERIAL OR ARTICLE HANDLING |
| 592 | DF | ELEVATOR OR HOIST AND LOADING OR UNLOADING MEANS THEREFOR {16} |
| 609 | DF | .~ With external cooperating movable feeding or discharging means {2} |
| 610 | DF | .~.~ Elevator carrier movement responsive {3} |
| 612 | | .~.~.~ Loading means {2} |
| 613 | DF | .~.~.~.~> Flow control mechanism (i.e., volume) {1} |
| 615 | DF | .~.~.~.~> Movable to feeding position over carrier |