par worldfairs » 04 mars 2024 06:27 pm

- A MODERN TURNTABLE IN THE TRANSPORTATION PALACE.
Centrally located in the Palace of Transportation is the working exhibit of the C., C., C. & St. L. Railway (Big Four Route), a monster locomotive and tender mounted on a turnable resembling an inverted bridge-truss, the whole assemblage of parts revolving easily on a relatively small horizontal circle of steel, so that the headlight, carried high in air, illuminates in turn every corner of the great building. As the turnable, with its well-poised burden, revolves in its 75-foot circle, the 79-inch driving-wheels rotate rapidly. Electric power is used for moving all the mechanism, and only the result is seen. The American Locomotive Company built the engine, and the Chicago Bridge and Iron Works supplied the turntable. In the circle of floor-space below the sweep of the turnable, the railroad company has laid out a map showing the route traversed by its lines. Besides its own weight, the great turnable carries that of the locomotive, 184,000 pounds, and the tender, 140,000 pounds - 162 tons in all. To balance the greater wight of the engine and give steadiness to"the motion, 55,000 pounds of sand are carried in the tender. Engines of this type haul ten cars at a rate of sixty miles an hour.
[attachment=0]palacetransportation01.jpg[/attachment]
Centrally located in the Palace of Transportation is the working exhibit of the C., C., C. & St. L. Railway (Big Four Route), a monster locomotive and tender mounted on a turnable resembling an inverted bridge-truss, the whole assemblage of parts revolving easily on a relatively small horizontal circle of steel, so that the headlight, carried high in air, illuminates in turn every corner of the great building. As the turnable, with its well-poised burden, revolves in its 75-foot circle, the 79-inch driving-wheels rotate rapidly. Electric power is used for moving all the mechanism, and only the result is seen. The American Locomotive Company built the engine, and the Chicago Bridge and Iron Works supplied the turntable. In the circle of floor-space below the sweep of the turnable, the railroad company has laid out a map showing the route traversed by its lines. Besides its own weight, the great turnable carries that of the locomotive, 184,000 pounds, and the tender, 140,000 pounds - 162 tons in all. To balance the greater wight of the engine and give steadiness to"the motion, 55,000 pounds of sand are carried in the tender. Engines of this type haul ten cars at a rate of sixty miles an hour.