AN ELEVATED RAILWAY FIRE ENtilNE.
The Metropolitan Elevated railway of Chicago, has built a fire extinguishing car for use on its lines, and has found it so successful that it will build four more cars of the same type. On a thirty-foot flat car a hut twenty feet long has been built, covered with corrugated iron. The body of the car is covered with quarter-inch steel plate and strengthened to withstand the impact of falling bodies and other similar rough usage, In the hut are two horizontal pressure tanks and an upright water supply tank of 250-gallon capacity, supplying the other tanks by gravity. On each of the first named is an iron basket holding 150 feet of one-inch chemical hose, tested to 250 pounds pressure. To use the apparatus the hose is let out by one fireman, and one of the pressure tanks is brought into action by mixing acid with the water in it and opening the proper valve to the pipe. Only one tank is used at a time. It will run seven minutes, supplying both hose. When it is empty the second tank is brought into use, and the first recharged, this latter operation requiring only four minutes. A continuous stream is thus maintained.