Abstract: A machine for cutting holes in golf course greens having a threaded drive shaft, a motor to rotate the drive shaft, a sod cutter at the bottom of the drive shaft and adapted to rotate with the drive shaft, a clutch that can be engaged and disengaged with the threads on the drive shaft, the clutch mounted on the upper end of an ejector cylinder concentrically encasing the drive shaft and adapted to effectively move downwardly when the clutch is engaged and to float free when the clutch is disengaged, supports for the plug ejector cylinder which allow the ejector cylinder to move along the axis of the drive shaft, and an ejector plate mounted at the bottom of the drive shaft and adapted to fit inside the cutter and to effectively move downwardly through the interior of the cutter when the clutch is engaged, in order to drive out the plug of turf and dirt inside the cutter.

Abstract: An apparatus for laterally displacing and inverting a windrow of crop material is disclosed wherein a pickup engages a windrow of crop material along a first path and elevates the windrow into a table where it is conveyed in a semi-circular path by a horizontal conveyor until it is rolled off a discharge edge of the table into a second path laterally displaced from the first path. The speed relationship between the horizontal conveyor and the forward movement of the apparatus is such that the elevated windrow of crop material is gently rolled off the discharge edge of the platform in such a manner that the windrow is inverted when it engages the ground. A method of laterally displacing and inverting a windrow of crop material is also disclosed wherein the windrow is gently picked up, conveyed and turned upside down without the need for a structural device to engage the windrow and positively invert it.