US Patent 10315859 Automatic singulation of items

Singulation system may utilize various features to singulate items, e.g., which may be different sizes from one another. For example, a conveyor may advance items along the length of the conveyor, and paddles arranged for protruding over respective portions of the conveyor may be selectively positionable based on conditions (such as a size or a jammed state) of items detected as present on a relevant part of the conveyor. Additionally or alternatively, a first conveyor may advance items at a first speed and in a first direction to sequentially drop the items onto a second conveyor positioned below the first conveyor, and the second conveyor may advance the received items at a second speed higher than the first speed and in a second direction different from the first direction, e.g., to increase space between items.