Oscillating alike gate. (Machine-translation by Google Translate, not legally binding)

摘要

Oscillating spillway gate, for the temporary closure of channels, access openings or docks, lagoons and the like, characterized in that it comprises a base arranged transversely to the bottom of the channel or opening to be closed, without substantially protruding from the bottom; at least one hollow element hinged to said base and suitable for oscillating alternately from a substantially horizontal position of immersion to a raised or reservoir position in which the free end of said hollow element emerges from the water surface to a height depending on the angle of rotation, a recess formed in the base to house the hollow element without protruding from the bottom when in its horizontal position; at least one hole formed in the lower edge of said hollow element near the articulation axis; a duct for the admission and discharge of compressed air to said hollow element, and outside it, whose duct extends to the opposite side to that in which said hole is located and connected to another compressed air duct through an articulated joint, the admission and discharge of air producing the expulsion and admission of water, respectively, through said hole and consequently the raising and lowering of the hollow element. (Machine-translation by Google Translate, not legally binding)