. American engineer and railroad journal . and were fully illustrated and described in the September, 1907, issue of this journal, page 338. They have the following general dimensions: Service Pushing Fuel Bi*.. Coal Tractive effort, compound 94,800 lbs. Weight in working order lbs. Weight on drivers lbs. Weight of engine and tender in working order lbs. Wheel base, rigid 14 ft. 3 in. Wheel base, total 39 ft. 2 in. Wheel base, engine and tender 70 ft. 5;.. in. RATIOS. Weight on drivers -f- tractive effort Total weight -r- tractive effort Tractive effort X diam
. American engineer and railroad journal . and were fully illustrated and described in the September, 1907, issue of this journal, page 338. They have the following general dimensions: Service Pushing Fuel Bi*.. Coal Tractive effort, compound 94,800 lbs. Weight in working order lbs. Weight on drivers lbs. Weight of engine and tender in working order lbs. Wheel base, rigid 14 ft. 3 in. Wheel base, total 39 ft. 2 in. Wheel base, engine and tender 70 ft. 5;.. in. RATIOS. Weight on drivers -f- tractive effort Total weight -r- tractive effort Tractive effort X diam, drivers -r- heating surface Total heating surface -f- grate area Firebox heating surface -r total heating surface, per .cent Weight on drivers -r- tuta1 heating surface Volume equivalent simple cylinders, cu. ft Total heating surface -r- vol. cylinders Grate area -r- vol. cylinders CYLINDERS AND BOILER. Kind Mellin compound Xumber 4 Diameter 25 and 39 in. Stroke 2S in. Kind, H. P. valves Piston. FIG. I.— MALLET ARTICULATED COMPOUND LOCOMOTIVE OF THE TYPE TESTED ON THE ERIE RAILROAD. the whole train on the curves and grades and on the operationof the head engine. As a result there is no way of knowingthe exact tonnage that was handled at any point of the test. The power delivered by the locomotive was obtained by meansof a dynamometer car placed between it and the train. Thiscar, unfortunately, was not of sufficient capacity to indicate thefull power of the locomotive when operated at its maximum rate,but was of sufficient capacity to give dynamometer records fora large part of the time on the test runs, the locomotive thenbeing operated to deliver sufficient power to get the train overthe hill at a speed which averaged six miles per hour. The test as a whole, owing to the small capacity of the dyna-mometer car, to the small number of runs made, and to the factthat the operation of the locomotive could not be controlled bythe testing
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
