Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 330
nly twelve months. The cables and suspenders aremade of wire, which was drawn in England at Warrington and Manchester,and the wires for the main cables were made of such a length, that eachwire passed from end to end of the cable without weld or splice. The lengthof each of the two main cables is… … JkON BRIDGES. 289 varies considerably with the temperature, for in winter the contraction pro-duced by the cold brings up the centre to 89 ft. below the level line, whilein summer it maybe 3 ft. lower. The centre of the bridge is about 190 ftabove the water in summer, and 193 ft. in winter. The…
Inventions
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