| 摘要 |
In apparatus for the treatment of rails, for the purpose of improving wheel-rail adhesion, using a plasma torch or torches supported on a vehicle, means is provided for continuously guiding the torch or torches so that it or they is or are directed along the rail center line or a line parallel thereto. For this purpose, use may be made of an electromagnetic detector mounted on a carrier for the plasma torch or torches and adapted for transmitting an error signal, proportional to lateral displacement in relation to the rail cent center line, to servo mechanism operative on the said carrier for reducing the said displacement. |
