FIELD: transport.SUBSTANCE: invention relates to railway transport. Proposed tub comprises body 2 with semicircular bottom 2 rigidly mounted on frame 1. Steel sheet 6 is hinged along body length with minimum clearance relative to body face walls to replicate body cross-section profile and to cover body portion. Sheet linear parameters to define hinge position at body side are set as follows: sheet length l from hinge to its bottom edge equals width b of body inner part while width from sheet horizontal projection makes c = 0.76b. Sheet bottom edge faces the side opposite tub rotation direction in unloading in tipper.EFFECT: efficient body emptying.2 dwg
