| 摘要 |
A rail vehicle is disclosed for use on an elevated electric rail system having a lower rail below the vehicle and an upper rail above the vehicle. The vehicle includes a pair of lower wheels having independently rotatable flanges rollably carrying a vehicle cab along the lower rail and an upper wheel having independently rotatable flanges rollably engaging the upper rail. Electric motors, energized through contacts carried on the vehicle by an electric circuit associated with the upper rail, are drivingly connected through drive belts to the respective lower wheel to propel the vehicle along the rail system. The vehicle also includes a clamping rail brake carried by a vehicle which is engagable on the lower rail, and a vertically and laterally extendable servo system secured to the vehicle and carrying the upper wheel.
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