. Operation of trains and station work and telegraphy . PIG. 5. AUTOMATIC REGULATOR AND PRESSURE INDICATOR^ 15—Fire Regulator Bowl. 24—Adjustable Draft Regulator Spring. 27—Regulator Lever and Pressure Indicator. 30—Forked Connection and Door Rod. 31—Piston^ Brass Connecting Lever. The fire-proof heaters just described have an automaticarrangement for regulating the fire according to the pres-sure in the heater and the temperature in the radiatingpipes. It is in effect a draft regulator, as shown by theletter r in Figure 4. It is also shown in detail in Figure5. It will be seen that a pipe ind
. Operation of trains and station work and telegraphy . PIG. 5. AUTOMATIC REGULATOR AND PRESSURE INDICATOR^ 15—Fire Regulator Bowl. 24—Adjustable Draft Regulator Spring. 27—Regulator Lever and Pressure Indicator. 30—Forked Connection and Door Rod. 31—Piston^ Brass Connecting Lever. The fire-proof heaters just described have an automaticarrangement for regulating the fire according to the pres-sure in the heater and the temperature in the radiatingpipes. It is in effect a draft regulator, as shown by theletter r in Figure 4. It is also shown in detail in Figure5. It will be seen that a pipe indicated by p leaves theriser R at the point shown and runs into the regulator 50 RULES FOR MOVEMENT OF TRAINS. PIG. 6. DOUBLE COIL OR TWO CIRCULATION HEATER. HEATING AND LIGHTING CARS 51 bowls which consists of two concave pieces bolted to-gether. Between the two parts of the bowl is a dia-phragm d made from corrugated steel, as shown sep-arately at the right. The steel is tempered and has athin sheet of copper on each side. This diaphragm isbolted between the parts of the regulator bowl as de-scribed; the under side of which is exposed to the pres-sure in the pipe R. The rod q passes through the topof the bowl and rests upon the diaphragm d. The pressure in R and in the bowl gradually increases,forcing up the middle flexible portion of the diaphragmand thus the rod q is lifted against the action of the springS and the lever 1, and so raises rod s and counter-draftdoor O, thus checking the draft through the fire. Whenthe pressure in R decreases the diaphragm moves down-ward, the spring S pulls the lever 1 down and so closesthe door O, causing more draft. The spring S has aloop at the upper end
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1919
