Abstract: Sensing level of submerged solids. At least some of the example embodiments are methods including: inserting a level sensing apparatus through an aperture at a top of a reservoir such that a bottom end of an inner tube abuts an upper surface of the submerged solids in the reservoir; utilizing the submerged solids such that the upper surface of the submerged solids recedes and the level sensing apparatus moves downward with the receding upper surface of the submerged solids; constraining downward movement of an outer tube when the upper surface of the submerged solids reaches a predetermined low level; and as the upper surface of the submerged solids continues to recede, sensing relative movement of the outer tube and an inner tube as an indication that the upper surface of the submerged solids is below the predetermined low level.

Abstract: Sensing level of submerged solids. At least some of the example embodiments are methods including: inserting a level sensing apparatus through an aperture at a top of a reservoir such that a bottom end of an inner tube abuts an upper surface of the submerged solids in the reservoir; utilizing the submerged solids such that the upper surface of the submerged solids recedes and the level sensing apparatus moves downward with the receding upper surface of the submerged solids; constraining downward movement of an outer tube when the upper surface of the submerged solids reaches a predetermined low level; and as the upper surface of the submerged solids continues to recede, sensing relative movement of the outer tube and an inner tube as an indication that the upper surface of the submerged solids is below the predetermined low level.

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 air passing through the batt of figure removes debris from the batt and carries the debris to an associated plenum. The batt is doffed off the rotatable cylinder by a roller that serves to both doff and compress the batt. A roller doffs the fiber batt from the rotatable cylinder and doffs and compresses the batt against a compression roller.

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 air passing through the batt of figure removes debris from the batt and carries the debris to an associated plenum. The batt is doffed off the rotatable cylinder by a roller that serves to both doff and compress the batt. A roller doffs the fiber batt from the rotatable cylinder and doffs and compresses the batt against a compression roller.