Here is a closeup of the device used to separate the streetcar and trolley bus wires. The streetcar wire runs from left to right in the picture, and is held below the device by a series of metal "skids" - the pantograph bounces along these skids and makes fireworks as the streetcar progresses through the crossover. The trolleybus wires go from the upper left to the lower right in the picture, and are mounted within the notches of the crossover device. In person the device appears to be made of a white ceramic material.
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