Locomotive appliances . Fig. 2. Fig. 3. Exterior View. Sectional View. The Star Improved Open or Plain Locomotive Pop Safety Valve. Figs. 4 and 5 illustrate the muffled Star pop safetyvalve, which is seen to be similar in construction,with the addition of the top hood, or muffler, whichtends to greatly reduce the noise of the escapingsteam, and hence is of considerable advantage. Boththe plain and the muffled valves have Large reliefpowers, and are made to withstand the highesl pres-sures used on locomotives. The slotted domes amimufflers have their real aim in preventing din amicinders from e
Locomotive appliances . Fig. 2. Fig. 3. Exterior View. Sectional View. The Star Improved Open or Plain Locomotive Pop Safety Valve. Figs. 4 and 5 illustrate the muffled Star pop safetyvalve, which is seen to be similar in construction,with the addition of the top hood, or muffler, whichtends to greatly reduce the noise of the escapingsteam, and hence is of considerable advantage. Boththe plain and the muffled valves have Large reliefpowers, and are made to withstand the highesl pres-sures used on locomotives. The slotted domes amimufflers have their real aim in preventing din amicinders from entering the interior of the valve amiclogging its free action. All liability of back pressureon top of valve, which causes continual chattering, isremoved. By removing the small sel screw, shown at the right 124 LOCOMOTIVE APPLIANCES. of both types of valves shown, and turning the ringwithin to the right or left with a pointed instrument,
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectlocomot, bookyear1901
