. Electric railway journal . rucks have rigid centers, and side bearings areapplied to one truck only to give a three-point suspen-sion. The rigid wheelbase is 9 ft. 6 in. and the totalwheelbase of the locomotive is 24 ft. 10 in. Betweentruck centers the distance is 15 ft. 4 in. The motorsare inside hung from two spring supports on the truckbolsters and the two axle bearings, and connected tothe axles through tool steel gears and pinions, withseventy-eight and eighteen teeth respectively. Thetruck bolsters, like the body bolsters, are the built-uptype with one-piece top and bottom members 22 i
. Electric railway journal . rucks have rigid centers, and side bearings areapplied to one truck only to give a three-point suspen-sion. The rigid wheelbase is 9 ft. 6 in. and the totalwheelbase of the locomotive is 24 ft. 10 in. Betweentruck centers the distance is 15 ft. 4 in. The motorsare inside hung from two spring supports on the truckbolsters and the two axle bearings, and connected tothe axles through tool steel gears and pinions, withseventy-eight and eighteen teeth respectively. Thetruck bolsters, like the body bolsters, are the built-uptype with one-piece top and bottom members 22 Four type Westinghouse No. 151, single-phase, 25-cycle, series motors are provided and each is capable ofdeveloping on the stand, when supplied with an airblast of 1000 cu. ft. of air per minute, 170 hp. for onehour with a temperature rise in any of the windingsnot to exceed 75 deg. C. above that of the enteringcooling air. This rating requires 830 amp. at 220 operated continuously as above without exceed-. SOUTH SHORE LOCOMOTIVES—INTERIOR VIEWS SHOWING SIDE AISLE IN CAB AND SWITCH GROUPS MOUNTED ABOVE TRANSFORMER 1020 ELECTRIC RAILWAY JOURNAL [Vol. XLVIII, No. 20 ing the same temperature limits, the motor delivers142 hp., requiring 650 amp. at 220 volts. The armature windings are simple multiple coils con-nected to the commutator through preventive coils, andcross-connected in the armature to equalize the strengthof the field in each of the several magnetic poles. The
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