Apparatus for feeding printed products to a processing unit

An apparatus for feeding printed products to a processing unit, the apparatus comprising a separating device for lifting a printed product partially from a magazine with stacked printed products, a rotating conveyor drum for individually pulling the printed product from the magazine, the rotating conveyor drum having on an approximately circular travel path a gripping device comprised of at least one movable gripping arm for receiving the printed product from the separating device, such that the printed product partially lifted from the stack by the separating device is placed with an edge thereof to be grasped against the circular travel path, wherein the gripping device is configured to be controlled between an open position and a closed position by a cam mechanism connected to a closed guide track mounted in a vertical plane relative to an axis of rotation and stationary relative to the axis of rotation, wherein the movable gripping arm of the gripping device is connected to a double roller lever having two rollers mounted on the conveyor drum so as to be pivotable about an axis extending parallel to the axis of rotation of the conveyor drum and travelling in two closed guide tracks mounted stationary in at least one vertical plane about the axis of rotation of the conveyor drum.