Soil stabilizer and tooth holder therefor

Claim 1

In a soil stabilizer of the type including a self-propelled vehicle, a rotor having a plurality of teeth and being rotatable about a horizontal axis, and drive means for rotating the rotor to pulverize soil, the improvement wherein: said drive means includes means for rotating said rotor in opposite directions, and said rotor includes a plurality of tooth holders, each holder having generally oppositely directed coplanar tooth-receiving sockets for selectively receiving a tooth projecting toward the direction of rotation, said sockets and teeth being complementarily tapered to provide a friction fit therebetween, said sockets intersecting one another so that a friction-generating tapered engagement between the socket and the tooth occurs at front and rear ends of the tooth and is interrupted therebetween by the zones of intersection of said sockets so that manufacturing variations in taper of the tooth tend to be compensated for, said sockets being rearwardly open to permit engagement of the tooth with a removal tool; and said holder comprising two half sections that are divided along a vertical plane extending end-to-end through said sockets, said sections being connected by weld joints.