(under subclass 373) Apparatus wherein the means to carry or discharge the earth includes an orbiting continuous carrier extending parallel to the trench to receive the loosened earth from the trench.
SEE OR SEARCH THIS CLASS, SUBCLASS:
368, for a slit ditcher having a longitudinal endless conveyor.
SEE OR SEARCH CLASS
172, Earth Working,
33, for a power-driven conveyor or handler.
198, Conveyors: Power-Driven,
300+, for a conveying apparatus entirely supported by mobile ground engaging means; subclasses 506+ for a conveyor having means specialized for collecting a load from a static ground support.