. Journal of electricity, power, and gas . J** 4~^,.,a:aJ. WSffito, ^^v1i ^^^:nt ^=-]Wh^^ former oil: and lastly, a 24-iiich sheave around whichthe cable is turned and secured with clamps andclips. The cables consist of nineteen single-strand wires,weigh one and six-tenths pounds per lineal foot, andhave a total breaking strength of 96,000 pounds, theunit breaking stress of the material being about 200,-000 pounds per square inch. The wires had three coatsof oil. Supporting nothing, but themselves, each cabletakes the form of a catenary, which has a half-span of1972 feet, and a deflection of 1
. Journal of electricity, power, and gas . J** 4~^,.,a:aJ. WSffito, ^^v1i ^^^:nt ^=-]Wh^^ former oil: and lastly, a 24-iiich sheave around whichthe cable is turned and secured with clamps andclips. The cables consist of nineteen single-strand wires,weigh one and six-tenths pounds per lineal foot, andhave a total breaking strength of 96,000 pounds, theunit breaking stress of the material being about 200,-000 pounds per square inch. The wires had three coatsof oil. Supporting nothing, but themselves, each cabletakes the form of a catenary, which has a half-span of1972 feet, and a deflection of 147 feet, measured fromthe main tower,, and a half-span of 2455 feet and adeflection of 227 feet, measured from the south this basis each cable would have a tensile load atthe main tower of 21,840 pounds, and at the southtower of 22,000 pounds. Experiments were made ofthe efifect of the wind pressure, and the conclusion wasreached that it might, in extreme cases, double the cal-culated strains, and the cables were considered amply. Front View of Main Tower. North LooK^9 W^sr Diagram of Nortli Tower.
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Keywords: ., bookcentury1800, bookdecade1890, bookidjo, booksubjectelectricity
