FOUNDRY LADLE SLIDING SHUTTER (VARIANTS) Russian patent published in 1995 - IPC

FIELD: ferrous metallurgy, pouring of molten metals. SUBSTANCE: sliding shutter has U-shaped mounting frame 1 with side walls 2 extending in parallel with longitudinal axis. Fixed refractory slab 3 is mounted in mounting frame 1 and movable slab 11 is mounted in carriage. Four paired levers are positioned on frame side walls on semiaxles 4 at both sides of longitudinal axis of movable refractory slab. Levers are engageable with pressure blocks 9. Support rollers 7 cantilevered about levers are adapted to support carriage through guiding protrusions. Carriage is coupled with drive through pivot joint 15. Levers 22 are engageable with eccentrics 17. Variants differ in type of lever and construction of blocks of pressure mechanism. EFFECT: increased efficiency and enhanced reliability in operation. 3 cl, 8 dwg