PERFECCIONAMIENTOS EN LA CONSTRUCCION DE SISTEMAS DE REGU- LACION EN DOS TIEMPOS PARA VALVULAS AUTOMATICAS.

摘要

1317212 Movable barrages SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM) 14 July 1970 [23 Dec 1969] 34179/70 Heading E1H [Also in Division G1] A movable barrage for maintaining a constant liquid level N downstream of the barrage has a gate 1 and a hollow float 4 secured to the opposite ends of a frame arm 3 pivoted at 2. The. balance of the barrage is adjusted by adding ballast to the inside of the float in the position shown until the barrage is just in balance and adding ballast to the inside of chamber 6 when the gate is in the open position until the gate just closes when the liquid level is at level N. The chamber 6 is positioned vertically above the pivot 2 when the gate is closed. Oscillations of the gate are clamped by surrounding the float with a tank 5 having a bottom opening. The chamber 6 may be arranged to be over the pivot 2 when the gate is open.