. Operation of trains and station work and telegraphy . the water in pipe P being cooler,it weighs more and so exerts a pressure on the waterin pipe p, causing it to circulate in the piping and re-enter coil A at its lower end. Passing through the pipesin the fire it is again heated, rises through the coil intothe drum and is again discharged through the other pipeleading from the drum to the radiating pipe. Thus a con-tinued up-flow of hot water is maintained through thecoil into the drum, and a constant down-flow7 from thedrum to the pipes in the car. The drum is filled throughthe funnel f a
. Operation of trains and station work and telegraphy . the water in pipe P being cooler,it weighs more and so exerts a pressure on the waterin pipe p, causing it to circulate in the piping and re-enter coil A at its lower end. Passing through the pipesin the fire it is again heated, rises through the coil intothe drum and is again discharged through the other pipeleading from the drum to the radiating pipe. Thus a con-tinued up-flow of hot water is maintained through thecoil into the drum, and a constant down-flow7 from thedrum to the pipes in the car. The drum is filled throughthe funnel f and the cock C. After being filled the funnelshould be turned downward, to prevent dirt or cindersfrom accumulating in it. The cock is provided with adrip pipe. The foregoing describes the construction, HEATING AND LIGHTING CARS 47 piping and method of water circulation of the ordinaryBaker heater, but, as already stated, the danger from hotcoals being scattered in case of accident was not elim-inated bv the introduction of this heater. This led to an. FIG. 4 A—Coil. K—Ash-pit Door. G—Smoke Flue Base. E—Top Plate with Small Holes N—Smoke Screen. o—Coal Feed Chute. IMPROVED FIRE-PROOF HEATER. F—Safety Plate. i—Spring. D—Fire Safe. a—Indicating Depth. C—Sheet-iron Casing. d—Regulator Diaphragm. 48 RULES FOR MOVEMENT OF TRAINS improved or Baker Fire-proof Heater being invented, adescription of which follows: There is a fire-safe consisting* of an outside shell orcasing made of a flexible grade of steel, without joint orseam. See Figure 4. D is the fire-safe; the depth ofthe casing or shell is indicated from a to a. On theinside of the shell are sheets of asbestos and next tothese layers of asbestos is a sheet-iron casing C, enclos-ing the coil A ; the space between casing C and coil Aserves as an air space for the hot gases from the fire,and the space inside the coil A serves as a fire fire is accordingly within four casings: (1) Awater casing co
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Keywords: ., bookcentury1900, bookdecade1910, bookidopera, booksubjecttrainmen
