Trolley pole facts for kids
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
Images for kids
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A trolleybus with a pair of trolley poles on the roof
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Machining spare trolley pole wheels
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Modern trolley poles as installed on Vancouver's low-floor trolley buses
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Trolley retrievers on the back of a 1949 trolleybus
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Pantograph(left) and trolley pole in use on Queens Quay West, Toronto
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Overhead over a switch in Toronto: Two runners for pantographs flank the trolley pole frog.
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Classic PCC streetcars with trolley poles are still used in Boston;
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See also
In Spanish: Trole de pértiga para niños
