Bisbee daily review., 1912-08-11
BUILDING skyscRApER

Next to tke Elfe! Tower, the new N0olworfh hui;o ng in New Yerk is the tallest structure ever reared to the skies by the aand of man T.iIs sa ' scraper will be fifty-five stories high to- taling 150 feet, ard will be naac and shoulders above the Singer and Metro politan towers.
 To erect this wonderful building powerful electric motors niist raise more than 130-60G tons of steel, lrask. stone, etc, some of 1t to the roof Witho1t electricity it you'd be diJf- cult, If not impossible, to build ana maintain such a mighty building. When completed it win be small city within itself, fully connected with local and express electric tele- yators, telephones, electric light and dozen other things, from huge ven ti'ating fans to push buttons, operated by electricity.
 Electricity, the master mechanic. is practically building this enormous structure. To hoist the steel and set 1T in place are six derricks driven by eighty horse power motors. Fouc of them followed the course of construc- ton to the twenty-sixth floor, the lim- it of the building proper. after which two proceed with the tower work as far as the fortieth floor, from which one of the derricks keeps pace with the work. The hoisting engines and motors are seldom moved. They re main several floors below the working level, the cables, of course, running through the structure from the drums to the block and tackle on the lifting apparatus itself A telephone system supplemented by pull-bell, for the mo torman of the derrick acts entirely on signal, just as the engineer of an ocean liner drives his ship entirely by the bells from the bridge Only in the erection of modern skyscraper the bridge is seldom more than a plank extending over the edge of the floor while the lookout, instead of being m the crows nest at the masthead, rides through space on the girder. The work of the hoist is by no means completed with the safe delivery of the steel at the top floor: 1t must all be fitted together, and so skilled have the work CTS become, and so expert are they with their signals, that the beams are guided into place with little friction and loss of energy.
 Although steel-hoisting is thrilling, and to certain degree picturesque, as 1t is watched daily by thousands from the City Hall Park and the Post Office, 1t is far from being the heaviest part of the work. Seventeen million brick, weighing 42s500 tons, and 7500 tons of terra-cotta are also used, but they are carried to the bricklayers in pro saic wheelbarrows, and on everyday bod hoists. Six of the hoists are op- erated by forty horse power motors and four by fifty horse power motors.
 Cement and concrete are mixed in the basement, the machines, four in number, being operated by i5 horse power motors. A plumbing system is necessary, and temporary pipes lead to hydTants and two I4 horse power motors keeping the water in circulation. Another motor of 90 horse power pumps rain-water and leakage out Of the basement.
 There are two compressor plants on the work, one for the steam riveteTs and drills and the other for shooting cement Seyenty-fve horse power are required for the Tiveters, and all day long their gatling-gun fusillade is heaTd., The electrical installation amounts to about twelve hundred horse power in motors. two hundred arc lights, and about two thousand in candescent lamps. 4 force of six cleo tricians is kept constantly busy look ing after the wiring