| 摘要 |
<p>Air assisted document stacking apparatus wherein document items are moved into a directional control channel including a pair of rotatable rollers operating in offset relationship with respect to an elongated drive belt effective to entrain and move said items into a stacker pocket, the latter having means for applying positive air pressure to said pocket so as to move incoming items out of the path of following items entering the pocket and for applying negative pressure to said pocket for closely stacking items together in said pocket by removing residual air from between said items.</p> |
