. The Street railway journal . device is secured, with thefree ends extending to the rear. A current of air will then passthrough the casing of the ventilator in the direction of move-ment of the car, the air being compressed by the inlet funnel atthe forward end of the ventilator casing, and by being forcedthrough the contracted space between the deflecting blades andthe side wall of the casing. This air will be discharged fromthe rear end of the casing. The result will be that the foul orvitiated air within the car will be withdrawn through theopening in the wall referred to, and will be dis
. The Street railway journal . device is secured, with thefree ends extending to the rear. A current of air will then passthrough the casing of the ventilator in the direction of move-ment of the car, the air being compressed by the inlet funnel atthe forward end of the ventilator casing, and by being forcedthrough the contracted space between the deflecting blades andthe side wall of the casing. This air will be discharged fromthe rear end of the casing. The result will be that the foul orvitiated air within the car will be withdrawn through theopening in the wall referred to, and will be discharged throughthe rear end of the ventilator casing. In other words, an induced current will be created outwardlythrough the opening, which will carry ofl: the foul air and gases,while at the same time the direct current of air entering at theforward end of the ventilator casing will be cut off from thecar. It will, therefore, Ije impossible for any smoke, dust,cinders or other foreien matter to be admitted tn the cuv ihroueh. BROOKLYN CAR FLfTED WITH VENTILATORS the ventilator. If the movement of the car be reversed, or ifthe car be at a standstill and the direction of the wind change,the air will enter the opposite end of the ventilator casing-through the funnel or expanded portion from which the air wasformerly discharged. The flrst action of the air, however, willbe to throw into operation automatically one of the devicesreferred to as being located at opposite ends of the ventilatorcasing, with the result that the inlet end of the casing is tem-porarily closed and the full force of the air is directed againstthe deflecting blades or wings. This causes the automaticshifting of the blades to their reversed positions, and whenthey have reached such positions the passage through the casingoutside the blades will be opened, ihis temporary closing otthe inlet end of the casing also prevents the entrance of air tothe interior of the car through the ventilator while the de-flecti
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
