Trolleypole
TrolleyPole is a term that refers to a type of current collector used for drawing electricity from an overhead line. It is most commonly associated with electric streetcars, trams, and trolleybuses. The device consists of a long pole, typically made of metal or wood with a metal shoe or wheel at the end, which makes contact with the overhead wire. The pole is usually mounted on a pivot at the roof of the vehicle, allowing it to swing and maintain contact with the wire as the vehicle moves.
The trolley pole was a significant invention in the early development of electric traction. It enabled electric