A mechanically driven rotary device for tilling the floor, comprising a movable frame, a rotary transverse shaft on said frame intended to be driven from an energy source; and a plurality of rotary soil tilling members on said shaft, the members having blades extending generally parallel to the shaft, and said blades describing a cylinder of rotation about the shaft when the latter is rotated, providing the lower portion of the shaft. Said cylinder a work sector; characterized by the combination of ground breaking members with the tillage members, each of said members having a tree secured to the frame and each member extending diagonally downward and forward of the device and ending in a sharp point that is below said sector of work. (Machine-translation by Google Translate, not legally binding)
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