. The Street railway journal . e shape of the cab, which in the case of 15and 17 is bulged at the sides, instead of straight as in the case ofNo. 12. LEADING DIMENSIONS Feet. Inches. Gage 4 8% Over all height above rail level 8 5% Over all length, buffer to buffer 14 0 Extreme width 6 10 Wheel base .. 6 0 Diameter of wheels 2 3 Width of tires 0 4% Each locomotive has two motors, the armatures of which arefixed directly on the axles. The motors are arranged in series,and the regulating gear consists of a reversing switch, whichchanges the armature connections, a simple rheostat switch inseries


. The Street railway journal . e shape of the cab, which in the case of 15and 17 is bulged at the sides, instead of straight as in the case ofNo. 12. LEADING DIMENSIONS Feet. Inches. Gage 4 8% Over all height above rail level 8 5% Over all length, buffer to buffer 14 0 Extreme width 6 10 Wheel base .. 6 0 Diameter of wheels 2 3 Width of tires 0 4% Each locomotive has two motors, the armatures of which arefixed directly on the axles. The motors are arranged in series,and the regulating gear consists of a reversing switch, whichchanges the armature connections, a simple rheostat switch inseries with the motors, and a main break switch. The remaining details are given in the following table, whichmakes comparison easier: LOCOMOTIVE LOSSES AND DRAW-BAR PULL AT STARTING In order to arrive at the value of the draw-bar pull exerted bythe locomotive on the level at starting, the starting periods atKennington with 100 and 120 amps., and Elephant and Castle withthe same currents, will be considered; these stations are chosen. FIG. I. -SECTION OF TUNNEL SHOWING OUTLINE OF LOCO-MOTIVE AND CAR Type of motor _ _. Section of magnet _ Weight of magnets, complete with bearings Type of armature _. Diameter of cone Length of cone Number of turns of conductor __ Number of segments in commutator. Weight of arm with wheels complete Armature resistance ... Total resistance of locomotive Total weight of locomotive No \2 Locomofive. 2 pole Edison Hopkinson17 x 1040 Ring 17#17540 No. 10 = .01280 sq. in. 54 19 cwt. 3 qts. .3 ohm. .8 tons 7 cwt. No. 15 Locomotive. 2 pole x 1053 .400 x .078 = .0312 sq. tons 10 cwt. No. 17 Locomotive. 2 pole Edison Hopkinson20 x 1044 Ring 17k* 20-540 No. 10 = .01280 sq. tons 12 cwt. Each train consists of three coaches coupled together, with in-termediate platforms. The following are the LEADING DIMENSIONS Feet. Inches. Gage 4


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884