DEVICE FOR CLOSING ORE CHUTE ENTRANCE Russian patent published in 1994 - IPC

Abstract RU 2023167 C1

FIELD: mining. SUBSTANCE: device has double-wing trap doors 3 with drive installed in opening 1. Doors are made in form of sectors with radius equalling the radius of circumference inscribed in contours of ore chute and interconnected by means of vertical axle 7 installed for turning in horizontal plane. EFFECT: higher efficiency. 6 dwg

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RU 2 023 167 C1

Authors

Shaposhnik Jurij Nikolaevich[Kz]

Dates

1994-11-15—Published

1991-05-22—Filed