Abstract: An article dispensing mechanism for a vending machine including at least one serpentine track connected with an article loading space and an article dispensing space. The serpentine track is provided with a horizontal length adjusting device. This adjusting device comprises a spacer vertically extending within the serpentine track for defining the horizontal length of track, a movable plate connected with an upper portion of the spacer in a manner permitting sliding motion of the movable plate parallel to side plates of the machine and a guide plate extending across the loading space and engaging the movable plate. The spacer is horizontally and longitudinally slidable, following the movement of the guide plate. The position of the movable plate and the spacer defines the horizontal length of the loading space and the serpentine track.