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 propulsion equipment of a tram or trolley bus. The use of overhead wire in a railway electrification system is said to be the 1880 invention of Frank J. Sprague.
Related pages[change | change source]
References[change | change source]
|Wikimedia Commons has media related to Trolley poles.|
- Dr. Romin Koebel (2005). "Boston Transit Milestones". MIT Open Courseware. Retrieved 2006-10-24. Cite has empty unknown parameter: