research is developing alternative overhead line equipment designs based on a classical trolley wire systems. Overhead Line Equipment (OLE) used nowadays is primarily a catenary type which provides ...

[Frank]’s solution was as unique as his workspace — this swiveling overhead dust extraction system. The two-part ... [Frank]’s solution is an overhead trolley to support the hoses more ...

The mine truck is equipped with a trolley pantograph connected to an overhead catenary ... of the electric trolley system and the rectifier substation for the test track. The standards and vehicle ...