Abstract: Method employing serially positioned conveyors which are reorientable relative to one another at a common position in order to position an incoming stack of materials for transport and automatic stacking at an output position. The speeds of the conveyors are variable and reversible, and the motive power for both operating the conveyors and reorienting them and associated elements is supplied hydraulically. Transport to the output position is over an inclinable shingling conveyor and a retractable output conveyor.