Canadian mining journal July-December 1915 . Are made in many new styles and popular because designed rightAre popular because materials are rigbt. Are popular because made right. Give maximum efficiency with least up-keep in a lifetime and, therefore. l>e.*tand for practical field work cannot be excelled. Semi for literature. C. L. Berger & Sons 27 Williams Street - Boston, Mass. DOMINION BRIDGE CO., LIMITED Head Office and Works Branch Offices and Works MONTREAL, TORONTO. OTTAWA and WINNIPEG Engineers, Manufacturers and Erectors of Steel Structures Capacity 135,000 tons Rai
Canadian mining journal July-December 1915 . Are made in many new styles and popular because designed rightAre popular because materials are rigbt. Are popular because made right. Give maximum efficiency with least up-keep in a lifetime and, therefore. l>e.*tand for practical field work cannot be excelled. Semi for literature. C. L. Berger & Sons 27 Williams Street - Boston, Mass. DOMINION BRIDGE CO., LIMITED Head Office and Works Branch Offices and Works MONTREAL, TORONTO. OTTAWA and WINNIPEG Engineers, Manufacturers and Erectors of Steel Structures Capacity 135,000 tons Railway and Highway Bridges Swing and Bascule Spans Buildings of All Kinds Hemispherical Bottom and other Tanks Transmission Poles and Towers Riveted Pipe, Caissons. Bargei Turntables, Electric and Hand-Power Cranes Hoisting Appliances, Lift Locks Hvdraulic Regulating Gates, etc. Gear Cutting and General Machine Work Large Stock of Standard Structural Material at All Works THE CANADIAN MINING JOURNAL 15. Note the chain is running quite slack meansminimum journal friction. Whats the Life of aRenold Chain Drive? is one of the first questions a prospective cus-tomer asks. While no one can positivelystate what the life of any drive - Chain—Belt—Rope or Gear—will be under specified con-ditions, this photograph, however, shows a Renold Patent SilentChain Drive which has been transmittinjr, between twoshafta 85 h. p. continuously for over15 years. The centre distance is 37 in., and the main-tained efficiency per cent. WE STOCK CHAINS AND PARTS Catalogue free on request JONES & GLASSCO, (Regd) Engineers Branch Office, TORONTO Sole Canadian Agents 49 Place DYouville, MONTREAL The Jeffrey Line Has long been known as theCOMPLETE LINE for Coaland Metal Mine Service
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
