| 摘要 |
A method for forming vertical stacks of documents and then conveying the stacks serially along a conveyor to further processing stations. The stacks are rapidly ejected onto a conveyor which is driven at a relatively slow delivery speed, and to avoid longitudinal shingling of the stacks caused by their rapid ejection onto the conveyor, and to correct any lateral misalignment of each stack, there is provided a pair of rotatably mounted resilient guide rolls along respective opposite sides of the conveyor for rotation about vertical axes. The rolls are spaced apart a distance such that the rolls resiliently engage the opposite sides of the stacks as they pass therebetween. Also, the guide rolls are rotated at an initial peripheral speed which closely approximates the speed of the advancing stacks when the stacks engage the two guide rolls, which serves to square the stacks. The peripheral speed of the guide rolls is reduced while the rolls are in engagement with each stack, so as to decelerate each stack to the delivery speed of the conveyor.
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