Abstract: An apparatus for unscrambling a population of containers. The apparatus comprises an in-feed guide supplying containers in a random neck-leading and neck-trailing orientations to a carousel rotating about a horizontal axis. The carousel supports a plurality of container handling stations that transport individual containers from the in-feed guide to an output station, typically a conveyor belt. During the transport between the in-feed guide and the conveyor belt the container handling stations alter the longitudinal orientation of selected containers so that all the containers dispensed on the conveyor belt acquire a uniform longitudinal orientation.