Improvements to the subject of main patent No. 8801843 for improvements to machines for cleaning sand, removing stones and the like

摘要

An endless screw 1 mounted in front of the machine 2, above the comb 3 and in front of a rotary beater 5. The endless screw 1 may be mounted at different heights with respect to the cone 3. It makes it possible to separate, from the path followed by the machine, stones and objects 4 from a given size upwards set as desired by adjusting the height of the screw. IMAGE