. Electric railway gazette . gives efficient lubrication. The Brill Company has beenone of the few who have adopted the expensive refinementof grinding car wheels on their running centres. Theimportance of a well-formed tread and wheels of a uni-form diameter, though at first sight slight, in reality can-not be overestimated. The slightest difference in size. yokes are forged on the ends of a connecting bar, and theside frame is complete. The truck has comparatively recently received a greatimprovement in the shape of a spring suspension upon theaxle boxes, shown in Fig. 2. Two heavy ears are
. Electric railway gazette . gives efficient lubrication. The Brill Company has beenone of the few who have adopted the expensive refinementof grinding car wheels on their running centres. Theimportance of a well-formed tread and wheels of a uni-form diameter, though at first sight slight, in reality can-not be overestimated. The slightest difference in size. yokes are forged on the ends of a connecting bar, and theside frame is complete. The truck has comparatively recently received a greatimprovement in the shape of a spring suspension upon theaxle boxes, shown in Fig. 2. Two heavy ears are cast onthe lower part of the box, on which short, spiral springsrest in pockets and take the whole weight of the the rigid riding portions are reduced to the smallestpossible amount that present practice will allow. Accord-ing to the old method, the yoke rested directly on a pieceof rubber, the box and the yoke. While more or lesseffective, the method was open to several objections which H^^^l H \,.0k-i^„j.~^^j :M i \r~- ^^^^^J -~- tl^-g ■■■y between the wheels will cause one of the wheels to skidand wear away, making the difficulty worse. Besides this,an enormous amount of power is wasted. Moreover, aperfectly cylindrical wheel will wear very much longerthan one of imperfect outline, for, like the rough parts on thecommutator of
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
