Abstract: A waste baling machine having a baling or compression chamber of generally parallelopiped configuration is provided with a charging passage leading thereto with the head of a charging ram reciprocable in the passage and normally forming, in one position, a wall of the chamber. A discharge passage leads from the chamber at right angles to the charging passage and the head of a discharge ram, which when retracted forms a wall of the chamber, is advancable through the chamber and the discharge passage to eject waste material compressed in the chamber by the charging ram, i.e. a bale. If the bale is oversize and protrudes back into the charging passage, a portion of the wall of the discharge passage which forms a part of the charging passage is moved to enlarge the discharge passage sufficiently to permit ejection of the oversize bale.

Abstract: An ultrasonic inspection system for inspecting objects, such as pipe, is disclosed which includes an ultrasonic inspection probe or search unit, and the usual ultrasonic transducers and electronics associated with the probe. The system also includes novel apparatus for continuously tracking and recording operation with respect to a reference point or area, on the object being inspected. For this purpose, the inspection probe includes one or more sources of radiant energy which are periodically actuated as the probe is moved about the object being inspected, and a plurality of receiving devices or microphones located at a fixed relationship with respect to the area being inspected or to a known reference point on the area, such as a weld. The location of the probe can be determined and recorded from information obtained by receipt of the signals from the source of radiant energy by two or more of the receiving devices.