. The street railway review . ion prob-lems dealing with train and car movements. The writer is indebtedto Messrs, John Balch, John Lundie, Paul VVinsor, P. H. Wynne,and J. M. Ayer, of Boston and New York, for many valuable sugges-tions advanced from time to time upon this method of train move-ment analysis. Test Car of the Great Tramway Co. of Berlin. BV OUR BERLIN CORRESPONDENT. The Great Tramway Co., of Berlin, soon after changing the whole01 its system to electric operation, used a double track accumulatecar fitted with numerous measuring instruments for the o!ascertaining the con
. The street railway review . ion prob-lems dealing with train and car movements. The writer is indebtedto Messrs, John Balch, John Lundie, Paul VVinsor, P. H. Wynne,and J. M. Ayer, of Boston and New York, for many valuable sugges-tions advanced from time to time upon this method of train move-ment analysis. Test Car of the Great Tramway Co. of Berlin. BV OUR BERLIN CORRESPONDENT. The Great Tramway Co., of Berlin, soon after changing the whole01 its system to electric operation, used a double track accumulatecar fitted with numerous measuring instruments for the o!ascertaining the consumption of energy and other working condi-tions on its various lines. It was eventually found necessary, how-ever, to construct a separate and distinct car for this purpose, sim- used on the companys cars can be mounted on the axles of thiscar to be tested. There are three brakes entirely independent of each other, namely,a hand brake, a magnetic brake of the Sperry type and a com- - 1 1^1 ^iL^QdiGQ If 11 ! 1 1^ lircsscd air lirake of the Boker system. This combination of brakespermits the dirterent ones being compared on the same car anduliable data as to llicir respective efficiency, current consumption, DWELLING ENT. ilar to those used in the United Stales, and containing a completetesting outfit for determining any difficulties that might arise inthe course of operation. The car, several views of which are•shown in the accompanying illustrations, contains two main com-partments, one of which is used exclusively for testing and measur-ing instruments, while the other is designed as a dwelling room forthe officials engaged in the experiments. The external appearance of the car hardly differs from that ofthe convertible cars in general use. The test car is mounted onmaximum traction trucks, the distance between the driving axlesl«ing 5/4 meters and the wheel distance 1,300 mm. The toUlweight of the car is 15,050 kg. The electrical e(|uipment was s
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
