Haulm cutting apparatus

A potato haulm cutting apparatus comprising lateral and vertical guiding means or surfaces and a first, rotatable shear rotatable around an axis of rotation extending in a direction with a vertical component, and further comprising a rotatable counter shear for cooperation with the first, rotatable shear, wherein the first, rotatable shear and rotatable counter shear are positioned in a side-by-side relationship relative to a direction of travel during operation, and wherein both the first, rotatable shear and the rotatable counter shear comprise a circular disc with a recessed rim portion, said discs mounted at an end of a respective shaft to extend in a plane at right angles to the shaft, the apparatus comprising a drive for rotation of the shafts at mutually different rotational speeds, each of the first, rotatable shear and the rotatable counter shear comprise a succession of adjacent protrusions extending from central parts of the respective discs, the protrusions defining pockets therebetween whereby, in operation, the pockets overlap and are open and are thereby configured to receive and catch potato haulms and due to the different speeds of the first, rotatable shear and the rotatable counter shear, potato haulms are caught and cut by first protrusions of the first, rotatable shear passing second protrusions of the counter shear.