Horizontal earth boring machine is a machine used to bore horizontally through the earth by means of a rotating tool, or non-rotating pushing or piercing tool. It has an engine and an earth boring string wherein a hydraulic clutch driven by the engine is supplied with hydraulic fluid through an electrically operated valve. It is capable of transferring drill cuttings from the boring area back through the machine to allow for more efficient boring through both hard and soft rock strata is disclosed. It has an air powered hammer bit drill with air passageways for flushing the boring area and also has a rotary drive for use in rotating augers secured inside a casing for transporting the drill cuttings back through the casing and out an air diverter discharge near the front of the machine.
A majority of the centrifugal pumps are horizontal end suction pumps and they are also called as overhung pumps. The name end suction stems from the fact that the suction flange is located at the eye or the center of the impeller. Discharge in pumps usually comes from the top of the pump, but on some end suction pumps, the user may rotate the discharge nozzle to any position. In these pumps, the impeller is attached to the end of a horizontal shaft supported by two radial bearings. These pumps are called overhung because the impeller is not between these two bearings but at the end of the shaft. Horizontal end suction pumps seldom have more than one impeller, which means they are single staged. The main advantage of these pumps is the capacity range, which is very high then the other pumps.