and engineering journal . ny does all its nccessan . \ special depaitlne important branch of the work and reppressor sas well resents 1,000upplies com-as light and own designing work \\ hen nt has b en set iside or this cs. Tl ie mining indu stri is ^ % b ~ ^ > * £Lk, - -^-jUI | gjtu >iV*L ? .; 5 ? t^SS .„_ 2*1 *\4 . Tender Tanks for South African Railways, built by the Denver Engineering Works. Jburg, December 3, 1921. THE MINING A\I> ENGINEERING JOURNAL specially catered Eor in this department, and plana and spe-cifications for complete mining plants pan be
and engineering journal . ny does all its nccessan . \ special depaitlne important branch of the work and reppressor sas well resents 1,000upplies com-as light and own designing work \\ hen nt has b en set iside or this cs. Tl ie mining indu stri is ^ % b ~ ^ > * £Lk, - -^-jUI | gjtu >iV*L ? .; 5 ? t^SS .„_ 2*1 *\4 . Tender Tanks for South African Railways, built by the Denver Engineering Works. Jburg, December 3, 1921. THE MINING A\I> ENGINEERING JOURNAL specially catered Eor in this department, and plana and spe-cifications for complete mining plants pan be drawn designing is tneanl tbe planning, calculating, and draw-ing of any plant, structure, machine, oi part of a is tiic work of a technically trained engineer and daughts-man, and its importance cannot be making constituted the nexl 3tep in the manu-facturing of machine parts which have to be made in castiron or other metal. The pattern is usuallj a model of thefinished cast 14 ft. Headgear Sheave for Brakpan Castings weighing up to 9 tons have been executed in these works, and while they were in the hands of llulicrlDavis and Spain, a 1> ton casting was made. Loral pigiron as well as scrap is used in making castings, and the pig produced by the Pretoria Iron Works has given everysatisfaction. Castings in brass and other alloys are A special feature of these works is the fact that work-in crucible cast steel can also be executed. Special furnacesworking under draught from a 120 foot stack have beenconstructed. These furnaces are tired with hard Natalcoke, and although this coke is satisfactory in every otherrespect, high sulphur content is one of its seems to point to the fact that coke producers shouldexercise greater cart1 in the washing of the coal they use forcoke production in order to eliminate as far as possible thisobjectionable constituent. The steel foundry is pro
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectmineralindustries
