Machine for extracting, rough shaping and squaring blocks of stones, marbles and granites, particularly in quarries

摘要

The machine comprises an automobile vehicle provided with a pivoting boom to which is pivotably mounted a beam carrying a pivotally mounted swingle-bar to which is coupled a rotary plate for supporting a frame provided with guiding uprights for a sawing unit. Hydraulic cylinders and motors are provided for adjusting respective positions of the boom, beam, swingle-bar, rotary plate and motor means of the sawing unit. Means are provided to maintain the frame in a fixed position when working a sawing step.