. Armour engineer. advent of the P. A. Y. E. car, which has been adopted asstandard in that city, has made more apparent the absolutenecessity for some improvement over existing conditions as ?Secretary and Chief Engin««r, Vacuum Car Ventilating Co. 218 THE ARMOUR ENGINEER [May. 1010 regards the matter of ventilation. Under normal operationthis type of car is running with the front door closed ex-cept when the car is standing still to take on or let off pas-sengers. Before the introduction of the vestibule type of car therewere certain periods of time during which the front and reardoors of th
. Armour engineer. advent of the P. A. Y. E. car, which has been adopted asstandard in that city, has made more apparent the absolutenecessity for some improvement over existing conditions as ?Secretary and Chief Engin««r, Vacuum Car Ventilating Co. 218 THE ARMOUR ENGINEER [May. 1010 regards the matter of ventilation. Under normal operationthis type of car is running with the front door closed ex-cept when the car is standing still to take on or let off pas-sengers. Before the introduction of the vestibule type of car therewere certain periods of time during which the front and reardoors of the car were open, thus permitting a flow of airthrough the car when in motion, which partially cleared theair, as well as materially reducing the temperature present conditions, however, the front vestibule of thecar acts as an air lock and the deck sash ventilation has proveditself inadequate to meet the standards of ventilation as laiddown bv the authorities. The ordinances relating to the safety. Fig. 1. Inside of Car Equipped with Mechanical Ventilators. and comfort of passengers for many years past have providedthat the cars shall be properly ventilated, no definite standard,however, being set. At the present time an ordinance is be-fore the city council, which provides for the introduction of350 cubic feet of fresh air per passenger per hour. The mini-mum requirement based on the carrying capacity of the caris not less than of fresh air per hour per draft of this ordinance provides that the the air should beintroduced at or near the floor line, and that the foul or viti-
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Keywords: ., bookcentury1900, bookdecade1910, bookidarmourengine, bookyear1910
