. Engineering problems in electric elevated and suburban railroading . er high is anywhere from 25 per cent, to 50 per cent. When it is realized that a system like the elevated rail-road would use only one-sixth of the power actually usednow if it made no stops the importance of this fact maybe seen. The question of coal economy is of less importance,however, than many other features of railroading, and,from a financial standpoint far less important than gettingabsolute freedom in determining train intervals and trainlengths. In this connection it should be noted that alto-gether too little Co
. Engineering problems in electric elevated and suburban railroading . er high is anywhere from 25 per cent, to 50 per cent. When it is realized that a system like the elevated rail-road would use only one-sixth of the power actually usednow if it made no stops the importance of this fact maybe seen. The question of coal economy is of less importance,however, than many other features of railroading, and,from a financial standpoint far less important than gettingabsolute freedom in determining train intervals and trainlengths. In this connection it should be noted that alto-gether too little Consideration is given to the question ofcar construction and car weights, and it seems to be for-gotten by many engineers that useless tons of dead weightmoved represents unnecesary investment in plant and acontinuous charge against operating expenses, and it isabout as sensible to ignore this question as it would be toadd pig lead to a car having all of its weight on its driversits traction. If half the energy was spent inuseless tonnage moved as there is in bargain. SOUTH SIDE ■ TESTED ON METROPOLITAN WEST SIDE ELEVATED small currents, through reversible jumpers, and the elec-trical combinations are effected automatically, howeverthe trains are made up and whatever the end relationof the cars. Protected by the automatic features, a child of tenyears can handle full-sized trains on regular service withless trouble, so far as the electrical apparatus is concerned,and with less instruction than is required for the simplestform of air brake. EASE OF INSPECTION The train line and the main motor circuits being ab-solutely independent, and provision being made on any carfor cutting out a set of motors, facility exists for an easy in-spection, wherever the cars are located. Almost all theworking parts of the motors can be inspected through thetrap door in the bottom of the car, and since the cars haveindependent movement and can be rapidly run through aninspection shed over a pit, a
Size: 3254px × 768px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookidldpd96884, bookpublishersn
