Low head vibrating screen ALLIS CHALMERS MFG CO
g Horizontal screens, on the other hand, take up but little space in a vertical direction; and gravity actuates the material in a direction perpendicular to the screen surface, so that all of the fine material can pass through the screen cloth, instead of rolling along the surface., Horizontal vibrating screens have not been widely used heretofore because there has been no satisfactory means for advancing the material .