. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . ao a 3 M ej o O <u *—. -*J O <U o ^ M < .S o cj p a c3 03 a oKo& o DO 6 354 STEEL RAILS Fig. 236 shows the bucket of the Hulett ore unloader. Four of thesemachines located at the docks at Conneaut, Ohio, are credited with havingtaken out of the Wolvin 7257 gross tons of ore in four hours and six minutes.*The Hulett unloaders at Gary are showing an average rate of 300 tons per hour. Fig. 239. — Blast Furnace with Stoves and Buildings. (Thurston.) for each


. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . ao a 3 M ej o O <u *—. -*J O <U o ^ M < .S o cj p a c3 03 a oKo& o DO 6 354 STEEL RAILS Fig. 236 shows the bucket of the Hulett ore unloader. Four of thesemachines located at the docks at Conneaut, Ohio, are credited with havingtaken out of the Wolvin 7257 gross tons of ore in four hours and six minutes.*The Hulett unloaders at Gary are showing an average rate of 300 tons per hour. Fig. 239. — Blast Furnace with Stoves and Buildings. (Thurston.) for each machine. On July 10, 1912, the Morgan discharged 10,091 tons of orein three hours and ten minutes at Conneaut. This was appai*ently the fastest timeever made in unloading, but on July 24, 1912, it was surpassed when the Palmer was relieved of 11,044 tons in three hours and seventeen minutes, or atthe rate of 56 tons per minute. * Saint Marys Falls Canal ScuiicriUeniiial, Commerce of the C^ireat Lakes, Ralph D. Williams,1907, p. 201. INFLUENCE OF DETAIL OF AUNUFACTURE 355


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Keywords: ., bookcentury1900, bookdecade1910, bookidsteelrailsth, bookyear1913