. Operation of trains and station work and telegraphy . g cars, but of preventing dangerfrom fire in case of accident. So great, however, hasbeen the progress made in devising and improving sys-tems of heating, that it seems now as though perfectionhad been reached. Indeed, the subject of heating pas-senger coaches may be said to have passed through sev-eral stages in its evolution, in exactly the same ratio ofprogress as many other phases of railway are now several systems of heating in operationwhich may be described as follows: THE BAKER SYSTEM. To Mr. William C. Baker belon
. Operation of trains and station work and telegraphy . g cars, but of preventing dangerfrom fire in case of accident. So great, however, hasbeen the progress made in devising and improving sys-tems of heating, that it seems now as though perfectionhad been reached. Indeed, the subject of heating pas-senger coaches may be said to have passed through sev-eral stages in its evolution, in exactly the same ratio ofprogress as many other phases of railway are now several systems of heating in operationwhich may be described as follows: THE BAKER SYSTEM. To Mr. William C. Baker belongs the credit of havingdevised the first practicable, scientific system for heatingpassenger coaches. When the Baker system was first introduced, the dan-ger from hot coals being scattered, in case of a wreck,had not been removed, as will be seen by reference toFig. i, illustrating and describing the first style of heater,some of which are still in use. This is known as theoriginal or old style ordinary Baker heater. 41 42 RULES FOR MOVEMENT OF TRAINS. FIG. 1. THE ORIGINAL, OR OLD STYLE ORDINARY BAKERHEATER. A—Generator or Water Coil. B—Fire-pot. C—Inside Casing. D—Outside Casing. E—Top Casting. F—Safety Plate. G—Base of Smoke Flue. H—Feed-door. I—Ash-pit. J—Ash-pit Casting. K—Base of Stove and Bottom of —Grate in Position to —Rocldng Bar and Shaker for J—Perforated Castings Permit-ting Upward Air Circula-tion Through Space Be-tween Casings C and D. HEATING AND LIGHTING CARS 43 The air between the casings when heated expands andtherefore rises, permitting cool air to be forced in throughthe perforated holes in the casting J, to take its place,and so an upward circulation of air is maintained. Thegenerator coil A is connected to the heating system andas it is always filled with water (usually salt water orbrine) it is heated by the fire and expands rapidly. Thewater as soon as it expands rises and passes out of thecoil at the to
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadtrains, booky
