FLUMED CANAL IRRIGATION MAIN Russian patent published in 1996 - IPC

FIELD: agriculture, in particular, surface and terrace irrigation equipment. SUBSTANCE: irrigation main has at least one flumed canal irrigator with chute 1 provided with water outlets having union 2 fixed in opening of chute bottom part, T-piece 3 (for delivering water at two sides of chute) with plug, lengthening tube 5, water-distributing pipe 6 with union, pipe 8 for suppressing water flow rate, resilient bellows- type pipe 9 with water intaking head 10 provided with lever 11 rigidly connected to head 10, thin flexible thread 12 turned over pulleys charged with metering vessel positioned at one part of pulleys and having gaged opening, and charged with counterweight positioned at opposite part of pulleys. Automatic operation of irrigators is provided by filling metering vessel of first flumed canal irrigator with predetermined quantity of ballast water and filling metering vessel of second flumed canal irrigator with ballast water in an amount twice exceeding first quantity and etc, with counterweight in each irrigator overbalancing empty metering vessel to switch bellows-type irrigating pipes 9 out of use and to switch bypass bellows-type pipe in use for bypassing water to subsequent irrigator. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 2 cl, 3 dwg