Abstract: The apparatus comprises two superimposed conveyors the adjacent runs whereof move at the same speed in the same direction. The conveyors are provided with transverse guides on which sliding elements are mounted which provide support for the articles, in connection with the bottom conveyor, and clamp the articles against the underlying supporting elements, in connection with the top conveyor, the held articles being caused to advance past switches operated in succession to divert the articles along guide sets leading to respective removal belts.