HOPPER Russian patent published in 2009 - IPC B61D7/06 B61D7/18 

FIELD: transportation of loose cargos.

SUBSTANCE: invention refers to devices for transportation of loose cargoes, namely to hopper cars structures. Hopper includes frame resting upon carriages and hopper with inner and outer gates. The frame is formed by cross-beams and centre beam with vertical walls. At the gates there are covers (5) installed with the possibility of turning relative to horizontal axis. Each cover (5) consists of sidewall part with bumpy surface against turn axis and two flanges attached to the both ends of sidewall part concave surface. Cover (5) of each inner gate is performed with the possibility of turning from lower closed position to open position by 90° and cover (5) part location in open position between vertical walls of centre beam.

EFFECT: invention extends control range of unloading speed and increases the area of unloading hole.

13 cl, 1 dwg