. The Street railway journal . s provided with a substantial hand railing. The cable railway division includes two 230 ft (70 m) tun-nels, a 328-ft. (100 m) viaduct, with sevenarches, and an 82-ft. (25 m) viaduct, withtwo arches. The lower tunnel is builtthrough blue sandstone, and is covered; theupper tunnel is built through limestone andis partly open. The piers for the long viaduct were sunkto a depth of ft. (5 m) before reachingsolid rock. This viaduct begins with a curveof 6562-ft. (2000 m) radius. The lowerportion of the viaduct also carries the upperpart of the turnout. The track u
. The Street railway journal . s provided with a substantial hand railing. The cable railway division includes two 230 ft (70 m) tun-nels, a 328-ft. (100 m) viaduct, with sevenarches, and an 82-ft. (25 m) viaduct, withtwo arches. The lower tunnel is builtthrough blue sandstone, and is covered; theupper tunnel is built through limestone andis partly open. The piers for the long viaduct were sunkto a depth of ft. (5 m) before reachingsolid rock. This viaduct begins with a curveof 6562-ft. (2000 m) radius. The lowerportion of the viaduct also carries the upperpart of the turnout. The track used on this division weighs54 lbs. per yard ( kg per meter), and is (1 m) gage. The turn-out has aradius of 835 ft. (280 m), and the distancebetween its ends is 380 ft. (116 m). The cable used is over 8200 ft. (2500 m) long, weighs 22,050lbs. (10,000 kg), and on a 57 per cent grade pulls a load equiva-lent to 15,435 lbs. (7000 kg). As its breaking strength is154,350 lbs. (70,000 kg), the factor of safety is VIEW OF THE LOWER PORTION OF THE CABLE DIVISION The cable rests on sheaves placed about (9 m) sheaves used on straight track are about 12 ins. (30 cm)in diameter, and those on curved track ins. (42 cm) indiameter. The cable cars have twenty first-class seats and thirty-twothird-class seats, all inclined, as is customary on mountain rail-ways. The weight of an empty car is 13,340 lbs. (6050 kg),and of a loaded car about 22,050 lbs. (10,000 kg). POWER SYSTEMThe station at the upper end of the cable railway containsa motor which operates the cable through a system of inter-mediate gearing. The electric installation for the cable alsoincludes the necessary controlling apparatus and a 650-volt,90-hp, direct-current shunt-wound motor, running at 600 513 r. p. m. Power from this motor to the main cable wheel istransmitted by belting. This station, in addition, containstransformers and three rotary converters for converting thecurrent receive
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
