. American engineer and railroad journal . -~-~~:;::~: -*ftt:-::;:;..;~^z::~~. * Electrician, October 9, 1891. PONT TRUCK, MADE BY H. K. PORTER & CO. tion of the switching locomotives that have recently been builtfor the New York and Brooklyn Bridge by H. fc. Porter &Co., of Pittsburgh, Pa. In this description we referred tothe peculiar construction of the pony truck, wherein there aresome rollers that, whenever the truck is turned out of^alignment, are made to move up an incline and thus maintain aconstant tendency to bring the truck back into its central posi-tion. We are now enabled to p
. American engineer and railroad journal . -~-~~:;::~: -*ftt:-::;:;..;~^z::~~. * Electrician, October 9, 1891. PONT TRUCK, MADE BY H. K. PORTER & CO. tion of the switching locomotives that have recently been builtfor the New York and Brooklyn Bridge by H. fc. Porter &Co., of Pittsburgh, Pa. In this description we referred tothe peculiar construction of the pony truck, wherein there aresome rollers that, whenever the truck is turned out of^alignment, are made to move up an incline and thus maintain aconstant tendency to bring the truck back into its central posi-tion. We are now enabled to present a detailed drawing ofthe truck from which a clearer idea of the construction willbe obtained than would be possible from a mere verbal de-scription. The weight of the rear end of the locomotive is put upon thesprings A A through the casting B B. The springs are sup-ported by the hangers G 6that run down through the centreof the spring and have an eye at the upper end for a bearingon the axle of the sheaves D D. When the truck is in its cen-tral position these sh
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
