toggle jaw crushers used for industrial purposes, dif-(a) (b) Fig. 1. (a) Schematic diagram of laboratory jaw crusher: 1 – fixed jaw, 2 – moving jaw, 3a, 3b – toggle plates, 4 – pitman, 5 – eccentric shaft, a, b – width and length of the inlet slot, 6 – flywheel, 7 – rear wall, 8 – outlet slot er adjusting device,Web