A method of repairing a rail wheel including removing a selected segment of a rim of the rail wheel to provide a remaining segment having a first engagement surface, and providing a replacement workpiece including a replacement body element having a second engagement surface formed to mate with the first engagement surface. The replacement workpiece is positioned to define a predetermined gap between the first and second engagement surfaces. One or more heating elements are positioned in the predetermined gap, for induction heating, in a non-oxidizing atmosphere, of first and second heated portions of the remaining segment and the replacement workpiece, and the first and second engagement surfaces, to a hot working temperature, for plastic deformation thereof. The heating elements are removed, and the first and second engagement surfaces are engaged for plastic deformation of at least part of the first and second heated portions and the engagement surfaces.

A method of repairing a rail wheel including removing a selected segment of a rim of the rail wheel to provide a remaining segment having a first engagement surface, and providing a replacement workpiece including a replacement body element having a second engagement surface formed to mate with the first engagement surface. The replacement workpiece is positioned to define a predetermined gap between the first and second engagement surfaces. One or more heating elements are positioned in the predetermined gap, for induction heating, in a non-oxidizing atmosphere, of first and second heated portions of the remaining segment and the replacement workpiece, and the first and second engagement surfaces, to a hot working temperature, for plastic deformation thereof. The heating elements are removed, and the first and second engagement surfaces are engaged for plastic deformation of at least part of the first and second heated portions and the engagement surfaces.

The present invention discloses a charging and swapping station of a battery tender, a battery charging system and a method for assembling charging station within an existing rail network.

The present invention discloses a charging and swapping station of a battery tender, a battery charging system and a method for assembling charging station within an existing rail network.

A cleaning unit configured for cleaning at least one storage container of a bulk transport vehicle, where the cleaning unit includes a chassis having a swivel connection defining a through-hole and a vacuum chamber, an air intake member and a pair of wheels attached to the chassis, where the wheels each include a motor and a vacuum attachment zone, and a processor on the chassis and coupled to the motor of each of the wheels, where a vacuum is generated within the vacuum chamber and in the vacuum attachment zones of the wheels so that the wheels suction and attach to an inner surface of a wall of the at least one storage container and the processor moves the chassis in multiple directions along the inner surface of the wall while the air intake member suctions and removes residual material from the inner surface of the wall.