Abstract: An excavating machine is provided having an L-arm assembly located between a power unit and an earth cutting device, the L-arm assembly for raising and lowering the earth cutting device. The L-arm assembly has a first arm for operable attachment to the power unit and a second arm integral with and substantially transverse to the first arm for operable attachment to the earth cutting device. The first arm of the L-arm assembly is longer than the second arm of the L-arm assembly. Hydraulic cylinders are included resulting in an earth cutting device which is held down into the ground in a positive manner so as to be more efficient in operation.

Abstract: An excavating machine is provided having an improved conveyor assembly, the excavating machine having a power unit, a supporting frame assembly operably attached to the power unit, an earth cutting device operably attached to the supporting frame assembly, and a conveyor assembly operably attached to the supporting frame assembly for expelling from the excavating machine the spoil created by the earth cutting device. The conveyor assembly has an interior portion bounded by a first end roller and a second end roller, an endless conveyor belt about the first end roller and the second end roller, a first side assembly and a second side assembly, all to prevent the spoil from entering the interior portion of the conveyor assembly.