. History of the Panama canal; its construction and builders . dard horizontal return tubetype, each eighty-four inches in diameterand nineteen feet ten inches in Robb boilers are constructed accord-ing to the rules formulated by the Massa-chusetts Board of Boiler Rules, the mostrigid requirements of any State in theUnion. The question of water for use in runningthe hundreds of boilers required on thecanal work was one of the greatest im-portance. It was well known that thewater on the Isthmus is particularly badfor boiler purposes, and to enable the en-gineers to succeed in procuri
. History of the Panama canal; its construction and builders . dard horizontal return tubetype, each eighty-four inches in diameterand nineteen feet ten inches in Robb boilers are constructed accord-ing to the rules formulated by the Massa-chusetts Board of Boiler Rules, the mostrigid requirements of any State in theUnion. The question of water for use in runningthe hundreds of boilers required on thecanal work was one of the greatest im-portance. It was well known that thewater on the Isthmus is particularly badfor boiler purposes, and to enable the en-gineers to succeed in procuring the properefficiency from their boilers, it was neces-sary to use chemicals to properly neutral-ize the water. The government lookedabout for the best material obtainable forthe purpose, and adopted the chemicals ofthe Bird-Archer Company, of New York,purchasing thousands of pounds to be usedin the marine, stationary, and locomotiveequipment from the Atlantic to the Pacific. The materials, made in liquid and pow-dered form for stationary purposes (accord-. i. Shipping DOlier boiler plant equipment to the The boilers installed at Miraflores power plant. (DOlier Engineering Company, Philadelphia, Pa. BOILER CHEMICALS AND ENGINES 369 ing to analysis of water), in extract and solidform (the latter in zinc containers) formarine purposes, and a new material insolid form in sticks one-inch square andnineteen inches long, known as polarizedmercury for locomotives, are as effectivein their way for locomotive use as the canalwill be for shipping. In supplying a compound suitable forthe conditions existing along the greatwaterway between the Atlantic and Pa-cific, owing to the many different condi-tions arising from the vast difference inscale-forming salts found in waters, it wasnecessary to consider both chemical andmetallurgical conditions. It being almost impossible to secureanalyses of the different waters, therebeing so many, it was necessary to makea compound in extract
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Keywords: ., bookcentury1900, bookdecade1910, bookidhistoryofpan, bookyear1915
