Abstract: An improved apparatus for alternately forming a predetermined stack of articles such as disposable diapers in vertically spaced ways, and then forwarding the stack as a unit from between the ways to ancillary downstream apparatus: for instance, packaging apparatus. The apparatus comprises an endless flight of nestable ways which flight is preferably continuously driven through an infeed station, and which flight has cyclical spatial dwell-and-go motion at an outfeed station. Each stack of articles is removed from between the ways at the outfeed station during such a spatial dwell of the portion of the flight of ways then disposed at the outfeed station.