. The railroad and engineering journal . OURNAL. 107 reservoir. The nut securing this valve has a passage ?iopening outside, or in another position of the nut com-municating with steam from tHe boiler. The tube in iscarried back to the at a point in front of thebalanced piston, as shown in fig. 6. It follows from this arrangement that if, the apparatusbeing in the position shown in fig. 6, the valve is movedinto the position shown in fig. 7, steam enters the inter- By this arrangement, the change from simple to com-pound working is made by the engineer, but it can, if de-sired, be m
. The railroad and engineering journal . OURNAL. 107 reservoir. The nut securing this valve has a passage ?iopening outside, or in another position of the nut com-municating with steam from tHe boiler. The tube in iscarried back to the at a point in front of thebalanced piston, as shown in fig. 6. It follows from this arrangement that if, the apparatusbeing in the position shown in fig. 6, the valve is movedinto the position shown in fig. 7, steam enters the inter- By this arrangement, the change from simple to com-pound working is made by the engineer, but it can, if de-sired, be made automatic. It is possible, at least in cer-tain engines, to make the throttle valve in fig. 7 work byan arrangement similar to a speed regulator, in such a waythat compound working would be immediately producedas soon as the speed of the engine passed a fixed mini-mum, and that, on the other hand, the engines when stop-ped would be always ready to start, with direct admissionto both cylinders. This arrangement is applicable to tram-. mediate reservoir and tends to close the large valve, whilethe space in front of the balanced piston being put incommunication with the outside through the pipe m, theopening in the valve and the hole «, there is no resistanceupon this piston. IE, on the other hand, the engine isworking directly, and the admission of live steam to thereservoir is then closed, there will be in front of the bal-anced piston a pressure of steam coming from the boilerwhich secures the opening of the large valve and the
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
