. Railway mechanical engineer . t distance of per cent. Thecontour of the line is such that there is a steady pull to thesummit of the grade. The maximum drawbar horsepowerdeveloped in these tests 1,100 On the testtrip running in the opposite direction there is a ruling gradeof per cent for about 4 miles. The train in this direc-tion consisted of the dynamometer car, 60 loaded freightcars and a guards van which gave 787 long tons as theIcal weight of the train. During this test the train wasstepped on the ruling grade and a start was made with adrawbar-pull of 28,000


. Railway mechanical engineer . t distance of per cent. Thecontour of the line is such that there is a steady pull to thesummit of the grade. The maximum drawbar horsepowerdeveloped in these tests 1,100 On the testtrip running in the opposite direction there is a ruling gradeof per cent for about 4 miles. The train in this direc-tion consisted of the dynamometer car, 60 loaded freightcars and a guards van which gave 787 long tons as theIcal weight of the train. During this test the train wasstepped on the ruling grade and a start was made with adrawbar-pull of 28,000 lb. and the speed was increased to16 m. p. h. in seven minutes after starting. These locomotives are equipped with the Schmidt super-heater, 1 nek arches, steam reverse gear, force-feed lubricat-ors to the cylinders, the Lockyer double-beat throttle valveand steam injectors. Following is given a brief description of locomotivestogether with a description of some of the practices fol-lowed in their Fig. 2—Plate Frame for North Eastern Mineral Locomotives inProcess of Construction and the top of the stack ft. 1 in. above the rail whichis S in. less than the minimum height clearance. The gen-eral arrangement drawing is shown in Fig Ifpage 506) Fig. 3_Horn Facing Machine for Finishing Pedestal Jaws Construction Details These engines following the customary British jjractice are equip[)ed with ],late frames which are lyi in. thick, 3 ft. iy2 in. deep lietween pedestals and 2 ft. l^A in. deep over the pedestals, being spaced 4 ft. apart. These frames are Ti, • ■ , - 1 /• iii>- , ueiii s pacea t It. apart. Ihese frames nrp These engmes were given a dynamometer test with a train shown in the process of erection in Fig. 2. No system of 505 506 RAILWAY MECHANICAL ENGINEER


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering