US Patent 10058038 System and method for continuous bale forming

A crop feeding mechanism for a harvester includes one or a plurality of screws or augers positioned in a hollow chamber of defined by the interior surface of an elongated frame, whereby the interior surface is tapered with decreasing volume in it rear portion. The one or a plurality of screws or augers are affixed upon a rotating axis and, as crop material is fed into the chamber, the one or a plurality of screws or augers conveys crop material rearward toward the tapered end and compact the crop materials so that the compacted crop material is extruded out of an opening at the rear end at a rate and temperature and in a form sufficient to allow a net wrap mechanism positioned at or near the opening to wrap the crop into a bale.