. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . ed by a concrete wall from thetracks. Once deposited in the trough,the ore may either remain in tempo-rary storage, or be conveyed to thelarger storage space covered by theore bridge. The combination of fast unload-ing plants on the dock front withbuckets moving at high speed over ashort travel, with a storage bridge oflong span, carrying a larger bucketover the storage space, is found onall modern lake docks. The blast furnace is shown byFigs. 239, 240, and 241.
. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . ed by a concrete wall from thetracks. Once deposited in the trough,the ore may either remain in tempo-rary storage, or be conveyed to thelarger storage space covered by theore bridge. The combination of fast unload-ing plants on the dock front withbuckets moving at high speed over ashort travel, with a storage bridge oflong span, carrying a larger bucketover the storage space, is found onall modern lake docks. The blast furnace is shown byFigs. 239, 240, and 241. It is a brickstructure, usually circular in sectionand built in two parts; the upper part resting on columns, while the lowerportion rests directly on the foundation. The upper portion is sheathed withboiler plates. Fig. 242 shows the top rigging of a modern blast furnace. Thecharge is automatically elevated and dumped into the hopper. In the United States furnaces are worked up to 100 feet high. The bestmodern practice is, however, about 90 feet high, with a product of 400 to 500 * Railway Age Gazette, July 28, 1911, p. Fig. 242. — Top Rigging of Blast Furnace.
Size: 1408px × 1775px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidsteelrailsth, bookyear1913
