Abstract: The grinding machine comprises a grinding head with a rotary abrasive tool, carried by a chassis equipped, at its ends, with rollers for running and guiding on the rail that is to be ground. A balancing assembly, resting on the other rail of the track, is mounted to pivot on the chassis, also provided with an orientable maneuvering arm. To rotate the grinding tool, an internal combustion engine is fixed to a support articulated to the balancing assembly, the horizontal output shaft of the engine being connected by a transmission assembly to the grinding head. The machine makes it possible to grind the profile of the head of the rail through an angle of 180° while at the same time avoiding excessive inclination of the engine.

Abstract: The grinding machine comprises A grinding head with a rotary abrasive tool, carried by a chassis equipped, at its ends, with rollers for running and. guiding on the rail that is to be ground. A balancing assembly, resting on the other rail of the track, is mounted to pivot on the chassis, also provided with an orientable maneuvering arm. To rotate the grinding tool, an internal combustion engine is fixed to a support articulated to the balancing assembly, the horizontal output shaft of the engine being connected by a transmission assembly to the grinding head. The machine makes it possible to grind the profile of the head of the rail through an angle of 180° while at the same time avoiding excessive inclination of the engine.

Abstract: A rail cutting machine with an engine block rotating a grinding wheel and a support guiding the grinding wheel in its plane transversely of the rail while being pivotally connected onto a vice to be fastened to the rail the grinding wheel being mounted at one end of an an-n pivotally connected with its other end to the engine block about an axis parallel to the pivot axis] on the vice and to the longitudinal axis of the rail, the engine block being permanently connected to the vice so that it may not be turned over horizontally and may not be turned upside down vertically so as to always be on a same side of the plane of the grinding wheel with respect to the vice.

Abstract: A machine-tool for cutting off rails comprising a motor block, an arm carrying a grinding wheel at its end and a machine-tool carrying holder to be secured onto the rail, said holder comprising two hingedly interconnected arms and pivoted with their free ends to said vice and said machine-tool, respectively.