Patent ID: 8297372

Claim:
An agricultural implement adapted for towing over ground, comprising: a frame defining an outermost width; at least a pair of juxtaposed, substantially parallel, spaced-apart rotatable shafts, comprising a first forwardly-mounted shaft and a second rearwardly-mounted shaft, each mounted on said frame and having a longitudinal axis at a transverse angle to an intended direction of travel of said implement, each of said rotatable shafts being non-powered and rotatable upon towing of said agricultural implement over said ground; a plurality of protruding tine members, extending substantially radially outwardly from each of said pair of shafts, longitudinally spaced along each of said pair of shafts, each tine member adapted to rotate about the longitudinal axis of a respective shaft, a tip of each of said tine members when rotating about said respective shaft creating a circular arc; an adjustment assembly adapted to adjust the transverse angle between the longitudinal axis of each of said shafts and said intended direction of travel of said implement, such that said shafts remain substantially parallel to one another through adjustment, and wherein the outermost width of the frame remains substantially constant through adjustment of the shafts, wherein said adjustment assembly includes a plurality of bolts and a plurality of bolt receiving apertures located within the frame, such that the bolts may be selectively positioned within the plurality of bolt receiving apertures, thereby adjusting the transverse angle; and said circular arcs of said tine members on one of said pair of shafts inter-digitating with a corresponding plurality of circular arcs of said tine members on said other of said pair of shafts.