Pump used in pulverizing e.g. newspapers, has camera arranged in first tubular section of first body portion to monitor movement of first body portion, and piston rod arranged to move in second tubular section of second body portion

摘要

The pump has a first body portion formed with a deposit portion and a first tubular section, and a second body portion formed with a second tubular section. A camera is arranged in the first tubular section for monitoring the relative movement of the first body portion. A piston rod is arranged to move in the second tubular section. The piston rod is formed with an exit conduit and a camera facing the exit orifice formed in the second tubular section.