Journal . of metal. Tlie borings cannot besmelted straight out and used generally for castingson account of the high antimony content—0-6%.They could, perhaps, be used for a few specialcastings, Iiut for general railway purposes, a mixtureof this kind would probably soon lead to serioustrouble. removal of the white metal in the fine borings isthe problem we were asked to solve. After a few experiments it was decided to passthe small borings from the bin to a magneticseparator, pick them up by a revolving belt fittedwith pockets, aud convey them to an overheadbin, from which they gravitate to c
Journal . of metal. Tlie borings cannot besmelted straight out and used generally for castingson account of the high antimony content—0-6%.They could, perhaps, be used for a few specialcastings, Iiut for general railway purposes, a mixtureof this kind would probably soon lead to serioustrouble. removal of the white metal in the fine borings isthe problem we were asked to solve. After a few experiments it was decided to passthe small borings from the bin to a magneticseparator, pick them up by a revolving belt fittedwith pockets, aud convey them to an overheadbin, from which they gravitate to classifiers, andare separated into tliree grades. From bins Nos. 1and 2, containing the coarser material, the boringsgra-s-itate on to a short revolving belt fitted withpockets and are delivered into a bin above thefurnaces, from which they gravitate to the fur-naces. Tliese fiu?naces are constructed of irontubes, one fitting inside the other. The outer one,being several inches larger in diameter than the. .5 ^H5H -•—CD- Li Belt Jr Conveyer — Fine C/ass/f/ers Feed Bin CoarseClassifier /
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
