Double Truck

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An image of a ‘double truck’. This truck has everything that a single truck has (four equal size tires and a motor on each axis), but works in conjunction with a second truck to move the trolley. The trucks hold the trolley base and allow it to roll on the rails.


International Correspondence Schools A Textbook on Electric Lighting and Railways (Scranton, PA: International Textbook Company, 1901)


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