Abstract: A dryer roll of a paper machine is provided with a doctor assembly, including a doctor blade. A contaminant removal assembly includes a hood mounted in a cantilevered manner to a support extending parallel to the axis of rotation of the dryer roll, and the hood extends downstream from the support and is in sealing contact with the upper surface of the doctor blade to form a channel between the doctor blade, the hood, and the surface of the dryer roll. Air amplifiers are provided at both ends of the hood for creating an airstream extending longitudinally of the hood and exhausting at one end thereof to remove fuzz picked up by the doctor blade on the surface of the dryer roll.

Abstract: A shower for conditioning a press felt or dryer fabric in a paper making machine, including a fixed housing extending laterally of the felt or fabric, and an oscillating conduit assembly in the housing including a plurality of nozzles spaced apart in series on the conduit assembly with each nozzle having a solenoid valve associated therewith and each solenoid valve being independently controlled to selectively open or shut the solenoid valves such that selective spraying of the press felt or fabric can be provided for.