Criba vibrante. (Machine-translation by Google Translate, not legally binding)

摘要

Vibrating criva, characterized essentially by being constituted by a frame on which is mounted a hopper provided with interchangeable mesh, the hopper being supported on elastic elements consisting of spikes of solid glued to a fixed plates-supports to said hopper; the latter receiving the action of a vibrating mechanism propelled by a motor of variable nature mounted in said frame. (Machine-translation by Google Translate, not legally binding)