ORE CHUTE GATE Russian patent published in 2009 - IPC B65D90/54 B65G65/34 E21F13/04 

FIELD: mechanics.

SUBSTANCE: ore chute gate comprises two bottoms attached onto cranks and arranged below the outlet hole to turn in a vertical plane in opposite directions relative to horizontal axles. The latter are fitted outside the branch pipe vertical walls and in parallel to them. Aforesaid cranks are linked up by other two cranks with their free ends linked with the rods of power cylinders arranged horizontally. The latter have are furnished with two rods to turn the cranks of aforesaid linkage in different sides. The cranks of bottoms, in initial position and with the gate opened, are oriented horizontally, while the cranks of the above linkage with the branch pipe walls form a 45 degrees angle. There is a dual-slope baffle arranged inside the branch pipe at the level of axles and in parallel to them to overlap the end face edges of bottoms, in plan, with the gate closed. Every bottom's crank has two pins fixed in cantilever therewith to enter, unobstructed, the openings of counter balance that rests upon the bottom's crank via detachable sleeves fitted on the pins.

EFFECT: higher reliability of gate operation.

5 cl, 7 dwg