| 摘要 |
FIELD: mining, particularly devices to draw and deliver particulate materials (crushed rock) from ore passes in underground mining. ^ SUBSTANCE: device comprises gutter with driving gate arranged in lower part thereof and defining sector in cross-section. The gate may rotate in vertical plane. The gutter has comb member arranged in bottom part thereof and connected to gate through hinged-lever connection. Lever of the connection is installed in the comb member and may slide in slot by means of roller. Upper comb member part has dovetail partitions. ^ EFFECT: increased operational reliability, simplified structure, assemblage and maintenance. ^ 2 dwg |
