US Patent 7677674 Cutting machine

In a cutting machine (1) with cutting heads or rollers (7) rotationally mounted on a pivotable cutting arm (6), including a loading ramp or a conveyor (9) extending in the direction to the mine face for receiving and removing the cut material, wherein the cutting arm (6) is mounted on a carriage (4) displaceable on guides extending in the longitudinal direction of the machine, the carriage (4) carries guide rods (12) extending in the longitudinal direction of the machine and engaging in tubular guides (13) of the machine frame (3) carrying a chassis (2).