TROLLEYPOLE

Trolley pole

A trolley pole is a tapered cylindrical pole of wood or metal, used to transfer electricity from a "live" overhead wire to the control and the electric traction motors of a tram or trolley bus. The use of overhead wire in a system of current collection is reputed to be the 1880 invention of Frank J. Sprague, while the first working trolley pole was developed and demonstrated by Charles Van Depoele, in autumn 1885.

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trolley pole

Noun

  1. A pole of wood or metal, used to transfer electricity from an overhead wire to power a streetcar or trolley bus.


The above text is a snippet from Wiktionary: trolley pole
and as such is available under the Creative Commons Attribution/Share-Alike License.

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