198 / | HD | CONVEYORS: POWER-DRIVEN |
418 | DF | CONVEYOR SYSTEM FOR ESTABLISHING AND MOVING A GROUP OF ITEMS {8} |
418.7 | .~ Subdivides continuous item stream into longitudinally spaced groups {4} | |
418.8 | DF | .~.~> By offsetting first or last article |
418.9 | DF | .~.~> And imbricates items within group |
419.1 | DF | .~.~> By item engaging stop means |
419.2 | DF | .~.~> By different speed conveyors {1} |