| 摘要 |
A device for sequentially introducing sheets placed in a stack into the nips of a pair of introduction rollers comprising at least one linear member having ends secured to a control pulley or roller and passing around a return pulley or roller which is adjacent the nips of the introduction rollers. A plurality of cams mounted on rotating shafts for engaging a run of the linear member to shift it from a retracted position to a position for engaging a bottom sheet in a stack disposed above the linear member, a vacuum chamber disposed along each linear member for holding the sheet on the members as they engage the sheet and carry it toward the nips.
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