and engineering journal . 90 deg. or more). Observationshows that a certain weight of pebbles must always be on the circum-ference or merely slipping takes place until enough pebbles haveto gn-e enough grip on the liner. This recnrs-itticient pebbles are present to keep up theither period of slipping takes place rally, and i in the layers formed. RUBBER MANUFACTURE. 2:i(>+, JOHANNESBURG VULCANISING WORKS (G. W. FERGUSSON),RUBBER MANUFACTURERS. We can now make, on our own premises, all kinds of Rubber Buffers and Valves, and any Rubber Goods for mining purposes. Motor Ty
and engineering journal . 90 deg. or more). Observationshows that a certain weight of pebbles must always be on the circum-ference or merely slipping takes place until enough pebbles haveto gn-e enough grip on the liner. This recnrs-itticient pebbles are present to keep up theither period of slipping takes place rally, and i in the layers formed. RUBBER MANUFACTURE. 2:i(>+, JOHANNESBURG VULCANISING WORKS (G. W. FERGUSSON),RUBBER MANUFACTURERS. We can now make, on our own premises, all kinds of Rubber Buffers and Valves, and any Rubber Goods for mining purposes. Motor Tyre Retreads, Tube Repairs, Etc. THE SOUTH AFEICAN MINING JOURNAL. Johannesburg, May 29, 19ir). HADFIELDS, Ltd, WORKMENEMPLOYED:ABOUT 8,000 Hecla and East Hecla Works, Sheffield, England. WORKS AREA; OVER 110 ACRES. Sole Makers of HADFIELDS PATENT ^^Era Manganese Steel, THE SUPREME MATERIAL FOR THE Wearing Parts of Stone Breaking and OreCrusliing Machinery, etc. MAKERS OF ALL KINDS OF Complete Stone Breaking and Ore Crushing Plants. HADFIELDS IT? SHtrrlELT Speciality : Hadfields Improved HECLONRock & Ore Breaker. Grizzley Bars, Shoes and Dies,Balls for Ball and Tube Mills. Steel Wheels & Axles for Mine Wagons. STEEL CASTINGS AND FORCINGS OF EVERYDESCRIPTION. Mining Requisites of all kinds. Head Office for South Africa; 46 & 47, Cullinan Buildings, Johannesburg. Phone 5900. Tel. Add. : HECLA. Box 1009 STORES : DENVER. TRANSVAAL (Adjoining Denver Station.) Bulawayo Agents : WHITMORE & JACKSON, 17 & 18, Agency Chambers. Salisbury Agents : P. PEECH & CO., Angwa Street. Johannesburg, May 29, 1915 THte SOUTH APEICAN MINING JOURNAL. [XTrx;ss SOUTH AFRICAN
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectmineralindustries
