FIELD: sewage works. SUBSTANCE: settler tank accommodates a device for removal of surface layer of liquid comprising an intake, a device for keeping the apparatus afloat in the form of links with float, drain system constituted by movable pipe consisting of a bend and a straight section. Intake has the form of rectangular frame made up of interconnected trays communicating with one another. Float has the form of rectangular parallelepiped and is enclosed in frame which has two strips connected to ends of two parallel trays. Links are set square to strips. Apparatus has two springs installed on links between strips and float. EFFECT: improved design. 2 cl, 4 dwg
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|---|---|---|---|
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