Abstract: A device for transporting objects to be passed through treatment tanks indes two laterally spaced overhead conveyors between which each object moves along a path of travel at a distance from the vertical planes of the conveyors and pendulums freely suspended at the upper ends thereof by means of articulation members coupled with driving members provided respectively for each conveyor. The pendulums associated in a pair on each conveyor in the same plane of progression are provided at the free ends thereof with members for suspending carrier frames designed to support the objects to be treated. Each carrier frame thus cooperates with at least two pendulums respectively associated with each conveyor.