JAWBREAKER Russian patent published in 1995 - IPC

FIELD: mining and construction industries. SUBSTANCE: jawbreaker has bed frame 1, movable jaw 5 and stationary jaw 2, eccentric shaft 6, strut plate 8, holder with springs 18 and controlling system, that provides keeping of given width of output slot of jawbreaker in case of unbreakable body passing and presence of normal leaks of oil in hydrosystem. Controlling system has slider 9, that rests on rods of hydraulic cylinders 10; block 15, on rim of which movable stop 16 is mounted. Movable stop 16 is engaged with pusher 17 of tail end switch 18 of loading conveyer drive and device of slot adjustment. EFFECT: increased productivity. 3 cl, 2 dwg