Zero feed interrupt sheet stacker

摘要

A zero feed interrupt sheet stacker conveying an uninterrupted stream of sheets in which a sheet accumulator catches holds and deposits a stack of sheets upon a load receiving device The accumulator includes a curtain which is extended into the stream of sheets at a selected point between two sheets. The curtain type apparatus provides a platform in which the portion of the platform in contact with the carried sheets does not move relative to the sheet while it is extending, during holding, or during retraction of the platform.