A bucket elevator conveyor system of the straight horizontal, “C” and “Z” configurations. In these bucket elevator conveyor systems, loading of the buckets can occur anywhere along the horizontal run adjacent the take-up end and discharge of the buckets can be made at the drive area or along the bottom run of the upper horizontal sections of the “Z” and “C” configuration. This provides not only for discharge of the product from the buckets traveling along the lower path of the conveyor, but also provides for simple, intermediate discharge. In addition, there are provided relapping mechanisms to assure proper relapping of the buckets, This is accomplished by reason of a unique bucket design having a cam on one end combined with the front and rear flanges angled to assure proper operation and lapping of the buckets.