A document repository architecture for heterogeneous business information management

A topping cutter for a cane harvester, supported and vertically adjustable in front of the harvester for severing tops of cane to be harvested, has a frame with two adjacent counter-rotatable feed drums with radiating fingers to engage the cane tops and feed them rearwardly, and a pair of cutters, one behind each feed drum, for coacting with the feed drum to sever the cane tops. A deflector on the frame is movable to direct the gathered cane tops selectively to either set of feed drum and coacting cutter, and the two sets of feed drum and cutter are arranged, together with guides on the frame, to eject the severed tops to opposite sides of the frame.