E01H 5/098

Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying {levelling} elements, conveying pneumatically {for the dislodged material} dislodging essentially by driven elements, the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels {about horizontal or substantially horizontal axises perpendicular or substantially perpendicular to the direction of clearing}