. The railroad and engineering journal . ail, and supported ona heavy frame, c c c. made of wood, as shown in the engraving,or on stone or brick masonry. When there is no room for the tank or reservoir near thetrack, it is placed in any convenient position at some distancefrom it, and the water is then conveyed by an undergroundpipe to the place where the locomotive must take water. Atthe end of this pipe what is called a stand-pipe or ivater-crane,fig. 416,* is located. This consists of a vertical pipe, A, with ahorizontal arm, B, which is made so as to swing around overthe man-hole of the te
. The railroad and engineering journal . ail, and supported ona heavy frame, c c c. made of wood, as shown in the engraving,or on stone or brick masonry. When there is no room for the tank or reservoir near thetrack, it is placed in any convenient position at some distancefrom it, and the water is then conveyed by an undergroundpipe to the place where the locomotive must take water. Atthe end of this pipe what is called a stand-pipe or ivater-crane,fig. 416,* is located. This consists of a vertical pipe, A, with ahorizontal arm, B, which is made so as to swing around overthe man-hole of the tender when the latter is to be filled withwater. In some cases the horizontal arm alone swings around,but in others the vertical pipe turns with the horizontal one ina joint, C, underneath the surface of the ground. The latterplan isthought to be preferable to the first, as the pipe is less * The engraving illustrates a stand pipe, made by the Sheffield VelocipedeCar Co., of Three Rivers, Mich. 284 THE RAILROAD AND [June, 1889. Fig. 415-. a^^ liable to freeze fast in the joint when the latter is un-derground than when it is exposed above. A suitablevalve, £>, is also attached to the pipe below ground, sothat the streain of water can be turned oil or on atpleasure by the lever £, which is connected by rods tothe valve. Question 717. W/iat effect does the use of impure boa-ter have on a locomotive boiler? Answer. The use of impure water, or that whichcontains a considerable amount of mud or solid mattermixed with it, or in suspension, as it is called, or haslime or other mineral substances chemically combinedwith it, will very soon coat the inside of the boiler witha covering of scale, which is a very bad conductor ofheat, and consequently the boiler is much less efficientand much more heat is wasted than if the heating sur-faces were clear. Besides this loss of efficiency, whenboiler plates are covered with non-conducting scale,they are much more liable to be injured by the
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
