US Patent 7311040 Cylindrical baling press

A cylindrical baling press including a roller around which a belt is arranged to partially surround a baling chamber. In the region of the roller, the belt relinquishes contact with a cylindrical bale being formed within the baling chamber. In this region of the roller, a lateral wall enclosing the pressing chamber is provided with a bulge or an opening, which makes it possible for material present in a space between two belt sections to be engaged by the rotating cylindrical bale and expelled through the opening or back into the bale. This configuration avoids, or at least reduces, the chance of jamming caused by crop materials around the roller.