. Canadian machinery and metalworking (January-June 1919). tional Work. CASTINGS Medium Weight Grey Iron, Bratl, GREENLEAFS,LIMITED Belleville, Ontario PL EWES Limited WINNIPEGFor All Machinists Supplies Mackinnon Steel Co., Limited Sherbrooke - • Quebec ENGINEERS, MANUFACTURERS AND ERECTORS OF STEEL STRUCTURES Miscellaneous plate and structuralwork of every description used inconnection with power plants fur-nished in short order. Engineering,manufacturing and erecting steelstructures is our specialty. Writefor prices. PATENTS FOR SALE Two Canadian PatentedSteam Specialties forsal
. Canadian machinery and metalworking (January-June 1919). tional Work. CASTINGS Medium Weight Grey Iron, Bratl, GREENLEAFS,LIMITED Belleville, Ontario PL EWES Limited WINNIPEGFor All Machinists Supplies Mackinnon Steel Co., Limited Sherbrooke - • Quebec ENGINEERS, MANUFACTURERS AND ERECTORS OF STEEL STRUCTURES Miscellaneous plate and structuralwork of every description used inconnection with power plants fur-nished in short order. Engineering,manufacturing and erecting steelstructures is our specialty. Writefor prices. PATENTS FOR SALE Two Canadian PatentedSteam Specialties forsale; one Steam Trap,Patent Number 187215,and one Steam Separator,Patent Number 183340. Allentown Experimental Works Allentown, Pa., these secondary combustible substancesthat it contains, and numerous formulasand tables are available from which thequantity of heat that will be given out bya ton of coal can be calculated. 0 C A N A D I A N M A C H 1 N K R Y Volume XXL CHROME STK POLSON IRON WORKS HAVE BEEN IN EXISTENCE FOR OVER THIRTY YEARS. YouKnow HowGreatly it Increased Production You know how it proved to bewithout equal for bo*h first andsecond operation punches—how,in both Canadian and Americanshell plants, this heat-treatedready-for-use steel enabled eachpunch to turn out over 2,000shells. Hawkridge Brothers steel forevery commercial requirementis just such production-increas-ing steel as proved this HawkD. Chrome Vanadium. We make Steel of EveryDescription Hawkridge BrothersCompany 303 Congress St., BOSTON, MASS. U. S. A. OVENS Japanning and Varnishing Oven* heated by Qas, Electricity. Steam or Coal. Kernchen 8iphonage Ventilators. Baaere Orena. trucke, eastern, etc. Write for Booklet. Brantford Oven A Raok C»., Ltd. Brantford, Canada. iai:iDiDiniDiD«niiniia«ui
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19
