. Canadian machinery and metalworking (January-June 1919). ctedwith each of the two roughingmills, and one to the finishingmill. In order to get thenecessary production theremust be always three bloomsgoing through the mills, oneto each. The roughing andintermediate mills are eachthree high, 23 in., and thefinishing mill three high, 29 The roughing and inter-mediate rolls are driven by a 36 65 in. x 48 in. tandem compound con-densing engine, and the finishing millby a 40 in. x 48 in. engine. The tiltingand travelling tables are electrically op-erated, and feed the bloom into
. Canadian machinery and metalworking (January-June 1919). ctedwith each of the two roughingmills, and one to the finishingmill. In order to get thenecessary production theremust be always three bloomsgoing through the mills, oneto each. The roughing andintermediate mills are eachthree high, 23 in., and thefinishing mill three high, 29 The roughing and inter-mediate rolls are driven by a 36 65 in. x 48 in. tandem compound con-densing engine, and the finishing millby a 40 in. x 48 in. engine. The tiltingand travelling tables are electrically op-erated, and feed the bloom into the mill,pass it along to the next mill, and thento the finishing roll. The finished rail iscarried along a travelling table to a cir- cular saw, where the rail is cut to lengtn,and a test piece cut from each rail, whichis marked for number of heat, date, rail is passed under a hammer, andstraightened by lining up with electrnlight. The size of rail rolled is from 56lbs. to 100 lbs. per yard, and the millshave a capacity of 30,000 tons per 35-IN. BLOOMING MILL. The finishing rolls deteriorate rapidly,and have to- be changed almost rails have to be gauged veryclosely and kept to specified size. If toolight the inspection will reject them, andif too heavy a considerable loss to thecompany would ensue. The roll design-ing department is kept busy checking uptemplates, and designing Merchant MillsThe merchant mills, as they are called. are employed in making of angles, chan-nels, bars, I beams, etc. They comprise an18-in. mill consisting of four 3 high standswith the necessary travelling tables andhook-up crane and cooling bed. This isdriven by a 1,500 motor, andhas a capacity of 6,000 tons per 12-inch mill contains a 5-3 highstand, driven by a 900 motor, 2,500 tons permonth capacity. There arefour sheer and punch machinesfor making tie plates, whichcan turn out 25,000 plates per12 hours, 1 splice bar shear,2 notcher
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19
