A new vertical pump impeller with helical blades outer periphery of troncocºnicas, special to install in chambers works (Machine-translation by Google Translate, not legally binding)

摘要

New vertical helicoidal impeller pump with outer periphery of the special trunk-conical vanes to be installed in work chambers that is characterized by being installed between two compartments or work chambers, one of aspiration or entrance and another of discharge and elevation separated by a partition which makes the floor of the discharge chamber. (Machine-translation by Google Translate, not legally binding)