DROP WATERER FOR POULTRY Russian patent published in 2003 - IPC

FIELD: poultry farming. SUBSTANCE: waterer has vertical cylindrical casing with top end opening and bottom end opening. Casing is provided with external thread for attachment to water pipeline. Through channel formed inside casing has diameter variable from inlet end to outlet end thereof. Cylindrical metal sleeve is rigidly mounted inside channel. Sleeve internal surface is made in the form of three axially aligned cylinders having successively variable diameters. Spherical body is positioned in upper part of sleeve and piston is positioned in lower part of sleeve for sliding in vertical and horizontal direction. Lower part of piston is projecting beyond casing. Piston is positioned in spaced relation to casing internal surface. Upper thickened end of piston has flat surface on its larger base. Accumulating cavity is formed between spherical body and stem. EFFECT: simplified construction and enhanced reliability in operation. 3 cl, 1 dwg