Abstract: A refuse truck of the rear loading type provided with a novel packer blade and associated control apparatus. More specifically, the packer blade is mounted on a carriage that is arranged to reciprocate on an inclined track means so as to load and pack the truck body and the blade and carriage are respectively actuated by separate hydraulic cylinders which are in turn controlled in a novel manner so as to operate the carriage and the blade through successive cycles each of which is controlled by a respective pressure responsive controller. As a result, each of said cycles is automatically terminated by the occurrence of a predetermined pressure value and the mechanism will automatically proceed to the next succeeding cycle.

Abstract: A portable earth boring machine for the horizontal boring of shafts and the insertion of pipeline casing sections in installations where excavation from the surface is undesirable. The machine is characterized by a steering head positioned at the front of the casings which steering head is automatically controlled so as to directionally control the direction of extension of the pipeline as the drilling operation progresses.

Abstract: A power cylinder of the multiple stage telescoping type that is characterized by a plurality of telescoping piston and cylinder assemblies, each of which comprises a composite cylinder and piston sleeve construction and an end closure construction that provides an extension stop for the piston sleeve of the next adjacent stage. The apparatus is further characterized by a quickly detachable base plate construction which permits ready access to the interior components of the cylinder via the base end thereof.