Abstract: An apparatus for processing a fibrous material batt like lint cotton to increase the moisture content of the material and to compress the batt of humidified fibers to increase the batt density. A stream of warm humid air is passed through the moving batt of fiber that is constrained between a rotatable hollow cylinder and a stationary perforated screen. The batt is doffed off the rotatable cylinder by a roller that serves to both doff and compress the batt. The doffer/compression roller compresses the batt against a smooth surface plate.

Abstract: Apparatus for measuring moisture content and bulk flow rate of cotton and other bulk materials, such as wool or wood chips, while they are being transported on a belt conveyor. The apparatus comprises resistance-sensing electrode fingers pendulously mounted over the conveyor, the movement of the resistance-sensing fingers being halted in their downward arcuate path by the sensed material. The weight of the electrode assembly presses the fingers against the material with uniform pressure. The angular displacement of the fingers about an axis of suspension is used as a measure of bulk flow rate.