trolley pole
Noun
Meaning
A pair of trolley poles on a trolley bus
trolley pole (plural trolley poles)
A pole of wood or metal, used to transfer electricity from an overhead wire to power a tram, streetcar or trolley bus.
Examples
Modern trams often have an overhead pantograph mechanical linkage to connect to power, abandoning the trolley pole altogether.
P. 12 These trams, like virtually all others mentioned in this section, used either a trolley pole or a pantograph, to feed power from electric wires strung above the tram route.
The terms trolley pole and trolley wheel both derive from the troller.