Abstract: A novel and advantageous carrier mechanism, primarily useful for raising roofing shingle bundles, automatically by control by the user to lift and carry one or more of the shingle bundles or other items.

Abstract: A novel and advantageous carrier mechanism, primarily useful for raising roofing shingle bundles, automatically by control by the user to lift and carry one or more of the shingle bundles or other items. A frame carries a plurality of co-operating features, including a driving mechanism, an electric motor, a pair of chains and their sprockets, and when one of the shelf brackets gets to a top dead center position, the object falls in an orderly fashion due to a baffle, with succeeding shelf brackets sequentially reaching the top dead center position. The mechanism s is provided to have a sort of “stop and go” operativity, providing a safety control. Safety is further provided by a cam mechanism which assures only an upward direction when carrying a bundle. Safety is further achieved by an angle bar gutter guard, preventing undue bending, leakage, or other damage to the gutter.