Abstract: A sampling device provides accurately repeatable samples for determination of consistency. A chamber is placed into the process line, and a piston in the chamber can be moved rearwardly to withdraw a quantity of process into the chamber. A sample container in communication with the chamber is also filled. The piston is moved forwardly to urge the process back into the process line, while the sample container remains full of process. The sample container has a known volume, and the piston in its forward position closes the sample container so the sample therein is limited to the known volume. The sample is transferred to a filter, and clean water assures that all solids are transferred to the filter.

Abstract: An imaging device for detecting breaks in the paper manufacturing process wherein a camera is disposed adjacent the paper web and is enclosed in a housing. Air under pressure flows through said housing across the lens of the camera so as to prevent accumulation of debris thereon.

Abstract: A consistency transmitter for a pipe carrying a pulp mixture has a sensor blade within the pipe and an arm outside the pipe. The sensor blade is carried by a diaphragm, so the diaphragm is flexed in response to motion of the sensor blade. The arm is connected to the diaphragm so the arm is moved in response to movement of the sensor blade. A blade extends across the diaphragm to constrain the diaphragm to motion in one direction. A probe detects motion of the arm, the circuitry being remote from the probe and connected to the probe by a cable.