Patent ID: 7350344

Claim:
A rotary cutting apparatus comprising an adjustable grass guide consisting essentially of a substantially rigid and rectangular member spanning the cutting width of the apparatus transversely, wherein the angle of said grass guide can be adjusted within an angular range of 1 to 90 degrees from vertical and temporarily fixed at any angle within said range, a means for adjusting and temporarily fixing said angle within said range, a plurality of drive shafts aligned above and substantially parallel to said grass guide and extending rearward of the rear-most point of said grass guide when said angle is fixed at 90 degrees from vertical, a means for mounting said drive shafts to said grass guide such that said drive shafts remain substantially parallel with said grass guide throughout its full range of angular adjustment, a cutting blade centrally fixed to the rearward-extending end of each drive shaft in substantially perpendicular orientation to said drive shafts and said grass guide, wherein the lowest point of each cutting blade extends below said grass guide when said angle is fixed at 90 degrees from vertical, a power means driving the rotation of said drive shafts, a chassis, and a means for effecting movement of the apparatus over a cutting surface.