Abstract: Pressureless apparatus for aligning miscellaneous objects, notably bottles, including a feed conveyor having a plurality of tracks, an intermediate conveyor consisting of a plurality of juxtaposed elementary paddled chains, a curvilinear guide plate overlying the paddle-chains, and a single-track output conveyor. To prevent the bottles from forming a double row at the ingress of the output conveyor and to reduce the overall dimensions of the pressureless aligner, the intermediate conveyor leads to a transitional conveyor that includes a mechanism for aligning the bottles which tend to form a second row in the single-track output conveyor.