Abstract: A coring apparatus for forming a plurality of vertical cores or bores in the ground surface which includes a mobile wheeled frame supporting a plurality of rotatably driven, vertically moveable drilling members which are moved between a lowered operative position and an elevated inoperative position in which the drilling members are oriented above the ground surface. The drilling members are mounted on a movable frame component that is pivotally supported from the wheel frame at one end thereof with the opposite end of the moveable frame component supporting the drilling members and connected with crank members powered from a drive motor to raise and lower the moveable frame component and the drilling members.

Abstract: Rolling apparatus (10) for rolling of level surfaces of turf or grass including a mobile main frame (11) and an undercarriage (12) having at least three ground contacting rollers (37, 38, 40) which are all unevenly spaced.

Abstract: The present invention provides a roller comprising a first frame, generally parallel first and second roll means mounted to the first frame for rotation about axes which, in one position of the first frame, lie in a generally horizontal plane, a second frame, a third roll means mounted to the second frame for rotation about a generally horizontal axis, and means mounting the first and second frames together for rotation relative to one another about a generally vertical axis whereby steering of the roller may be effected.