. The Locomotive. one comes. Some years ago The Locomotive il-lustrated the methods of introducingsolvents that are suggested in Figs. , and 6; and these have been widelyemployed, mostly with satisfaction. Ex-planation of these engravings is hardlynecessary, as they are sufficiently plainin themselves. In Fig. 4 a tee is in-serted in the suction pipe of the pump,and from this a vertical pipe rises toany convenient height. This pipe isprovided with a stop valve, and carriesat its upper end a receptacle for thesolution that is to be passed into theboiler. If the pump is drawing its sup-ply fr
. The Locomotive. one comes. Some years ago The Locomotive il-lustrated the methods of introducingsolvents that are suggested in Figs. , and 6; and these have been widelyemployed, mostly with satisfaction. Ex-planation of these engravings is hardlynecessary, as they are sufficiently plainin themselves. In Fig. 4 a tee is in-serted in the suction pipe of the pump,and from this a vertical pipe rises toany convenient height. This pipe isprovided with a stop valve, and carriesat its upper end a receptacle for thesolution that is to be passed into theboiler. If the pump is drawing its sup-ply from a lower level than the solventreceptacle, the only thing necessary todo, when it is desired to introduce somesolvent, is to open the valve in the pipeconnecting the receptacle to the pump,and the solvent will be passed into theboiler in a very few strokes. If, on thecontrary, the pump is drawing its sup-ply from some source which exertsmore or less pressure, the stop valvein the main suction pipe must be closed. Fig. 4.—Simple Arrangementfor introducing solvents. ?] THE LOCOMOTIVE. 113 -while the connection to the solvent receptacle is open, as otherwise thesolution will be driven out of the receptacle into the room, instead of beingforced into the boiler. Although the foregoing arrangement is both simple and effective, it maysometimes be inconvenient to make the attachment, owing to the locationof the pump. Fig. 5 shows a modification which is useful under such cir-cumstances. In this arrangement a tee is to be placed in the suction pipe,near its connection with the pump, and two stop valves are to be provided,as shown, one being on the suction pipe a little below the tee, and the otherin the extension of the tee itself. On the end of the tee connection a hoseis attached, which runs to a pail or tub containing the solution. The way
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Keywords: ., bookauthorhartfordsteamboilerin, bookcentury1800, bookdecade1860
