. The Street railway journal . n lines on which free transfers are issuedfrom the main lines. Open cars are not used on thesecross-town lines, on account of the excessive current re-quired by the motors in ascending the heavy grades withordinary loads and the greater danger of open cars becom-ing overcrowded. In ascending all heavy grades the mo-tors are run in parallel, and in most cases momentum issecured before entering the grade, to aid the ascent, buton one grade of 11 per cent at the summit of the trestlepreviously mentioned power is shut off to pass aroundthe curve at the foot of the gr
. The Street railway journal . n lines on which free transfers are issuedfrom the main lines. Open cars are not used on thesecross-town lines, on account of the excessive current re-quired by the motors in ascending the heavy grades withordinary loads and the greater danger of open cars becom-ing overcrowded. In ascending all heavy grades the mo-tors are run in parallel, and in most cases momentum issecured before entering the grade, to aid the ascent, buton one grade of 11 per cent at the summit of the trestlepreviously mentioned power is shut off to pass aroundthe curve at the foot of the grade. Extreme caution isexercised in descending heavy grades, the speed not beingpermitted to exceed 4 miles an hour, an ordinary walkingpace. In a city such as Quebec the braking system should beof special interest, yet nothing but ordinary brake shoes,the average life of which is three months, are used. Theseshoes are made of a specially soft cast iron, with the flangesperforated to permit the mud to percolate freely, and are. CITY GATE supplied with a brake leverage of 10 to 1. Under theseconditions it may be not a little surprising to find that skid-ding is very uncommon; in fact, the average number ofwheels worn flat is only 14 per cent out of the total num- STREET RAILWAY JOURNAL.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
