Abstract: An ensilage harvester is equipped with a blower including a rotor equipped with paddles for conveying crop along a housing wall surrounding the rotor. The paddles include cutting edges that reach close to the wall so as to cut crop that may enter the rotor between a paddle and the wall as the paddle is approaching the wall with the result that the crop captured between the wall and the cutting edges is cut thereby preventing crop from becoming jammed in the intervening gap and causing friction losses.

Abstract: An ensilage harvester has a cutterhead including a closed cylindrical drum having angular knife retainers mounted in circumferential rows about the periphery of the drum. Each knife retainer has a first leg extending generally tangentially to the drum and a second leg oriented at approximately a right angle to the first leg. A sheet metal insert is mounted together with the knife on each retainer, the insert extending to the second leg of the adjacent trailing knife retainer and being shaped to act as a relatively smooth surfaced crop impeller from which crop flows without caking thereon, the retainer being easily replaceable when worn.

Abstract: A cutter head includes a plurality of short cutter knives respectively mounted to flat rectangular trailing surfaces of angular blade retainers welded to the exterior of a cylindrical cutterhead drum. The knives each include a flat rectangular attaching flange, bolted to the trailing surface of a respective retainer, and a cutting or separating region configured in two different embodiments as a single trapezoid which is respectively coplanar with, or bent or twisted relative to, the attaching region.