Sand screener (Machine-translation by Google Translate, not legally binding)

摘要

Sand screen, characterized by the fact that it is based on. Of a grid of longitudinally arranged rods and parallel welded over the sleepers, which grid is provided with two smaller elastic legs than the rear ones, also telescopically, forming an inclined plane with elastic front, enough slope to favor the sliding of the sand left to fall on its top, at the same time as it is sifted. (Machine-translation by Google Translate, not legally binding)