. The street railway review . is the steady speed of 8 to 10 miles per hour withwhich motor cars run up the steep adhesion inclines of 6, 7 and 8 per cent at Zurich, Genoa, and Florence; while ^Wctj\ailM^l(^A/lcW 29 on the descent a speed of even 15 miles per hour hasproved perfectly safe, in conjunction with the powerfuland instaneous action of the electric safety brake consti-tuted by the motors acting as dynamos on the descent,although, for all ordinary purposes, even the mechanicalbrake alone suffices to stop the car within its own regards the comparative working cost of steep-gr
. The street railway review . is the steady speed of 8 to 10 miles per hour withwhich motor cars run up the steep adhesion inclines of 6, 7 and 8 per cent at Zurich, Genoa, and Florence; while ^Wctj\ailM^l(^A/lcW 29 on the descent a speed of even 15 miles per hour hasproved perfectly safe, in conjunction with the powerfuland instaneous action of the electric safety brake consti-tuted by the motors acting as dynamos on the descent,although, for all ordinary purposes, even the mechanicalbrake alone suffices to stop the car within its own regards the comparative working cost of steep-grade adhesion or rack railways by steam and by elec-tricity, I can affirm from mv own experience, as well asfrom every other case which I have had occasion to inves-tigate, that, irrespective of the immensely greater elas-ticity of the service, and, consequently, the far more rapiddevelopment of the traffic, electrical working ensures aneconomy of at least 50 per cent as compared with steam. CHIMNEY 100 FEET HIGH ^rtrt*^^-*! *i>.^.>:^_~_l- THIS corner is a view representinga brick chimney 100 feet high, whichwas pulled back into position froma point 28^8 inches out of plumb. Itis g]/2 feet square at the bottom,5)^ feet square at the top, with acentral flue three ffeet square. Theestimated weight is 206 tons, and thechimney stands on a foundation 14feet deep. The soil is affected bythe rise in a river, and although twosimilar chimneys had been alreadybuilt in the vicinity, no trouble had been measurements were first taken, the chimney vvasfound to lean about 16 inches, and a few days later was22 inches out of line. No particular change was noticedfor four months, when it was found that the chimney was28^ inches out. A scaffolding was built about the chimney, and 42 feetabove the stonework and 43^ feet below the center ofgravity of the brick work were placed eight oak timbers6 inches by 10 inches by 10 feet. The timbers wereused to spread the
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
