Rotary plow

Claim 1

A rotary plow comprising: a support displaceable over the ground; a forwardly directed plowshare mounted on said support and adapted to undercut the ground surface and form a furrow; and a soil-working rotor rotatable in one sense on said support behind said plowshare in said furrow and formed as a downwardly tapered body of revolution with an upright axis and including a central axial shaft adapted to be driven in said one sense, a plurality of downwardly converging struts constituting the sides of said rotor, soil-working tools on said struts, a circular solid disk constituting the base of said rotor and attached to the end of said shaft with said struts being attached to said disk, and a plurality of radially extending angularly spaced blades removably mounted on said disk and projecting outwardly therefrom, each blade having in the direction of rotation a leading cutting edge inclined rearwardly with respect to said rotation sense, said blades each being inclined upwardly away from said rotation sense, all of said cutting edges being generally horizontal and lying in a common plane, each blade having relative to said axis an outer edge provided with a downwardly extending outer flange and an inner edge provided with an axially extending inner flange having a generally horizontal lip attached to said disk.