Abstract: In an automatic conveyor system, a plurality of independently operable carrier or transport structures are interconnected in closed loop configuration. Each carrier includes plural sheets of overlapping slats, each supported by a carriage which allows the slat to pivot for differential vertical flight level movement and tilting to either side for deposition of articles onto selected receiving stations. A plurality of carriages and slats form an independently operable unit to complement the article size structure with one of the slat supporting carriages in each unit having actuating elements in the form of a horizontal arm to each side with a roller which can be deflected for tilting. The single tilting of this arm causes all of the associated slats in that unit to tilt in unison as a result of their overlapping nature.