. India rubber world. packing carried inthe stores of the gold mines near Johannesburg, , is estimated at $175,000. Stocks thereof at the Kira-berley diamond fields are estimated at $100,000. Specifica-tions for rubber hose and packing are rigidly drawn andonly the best grades are used. In the mining, engineering and kindred industries there isdeveloping a country-wide movement to buy rubber hosein accordance with specifications drawn with particularity,to ensure the best possible wearing qualities. The principalreasit (nr thi^; demand for hieh erade hose is because Rock Drill in D
. India rubber world. packing carried inthe stores of the gold mines near Johannesburg, , is estimated at $175,000. Stocks thereof at the Kira-berley diamond fields are estimated at $100,000. Specifica-tions for rubber hose and packing are rigidly drawn andonly the best grades are used. In the mining, engineering and kindred industries there isdeveloping a country-wide movement to buy rubber hosein accordance with specifications drawn with particularity,to ensure the best possible wearing qualities. The principalreasit (nr thi^; demand for hieh erade hose is because Rock Drill in Deki Gold Mine in South . 286 THE INDIA RUBBER WORLD [March 1, 1914. wherever inferior sorts of hose are used disintegrated par-ticles of the inferior substance get into the working partsof the rock drills and pneumatic tools and thereby reducetheir efficiency. In almost all instances, where buyers ofrock drills and pneumatic tools have found fault with themachines, the inspectors for the makers have found the. of a railway. The purchases of rubber goods of domesticmake for these mines constitute a big annual sum. Themines support a town of 20,000 inhabitants. The buyers forthe mines buy in rubber goods a great deal in addition tohose, belting and packing, notably in rubber boots and allkinds of goods used in families. The writer hereof in askingPhelps, Dodge & Co., large miners of copper and coal andoperators of mineral and other railroads in the southwestand Mexico, how many kinds of rubber goods they buyregularly, was turned over to the buyers department, York, where it was learned that the house has a depart-ment store at its principal mines where as many as 500clerks have been employed, and the purchases in rubberinclude every article that can be found on sale in a localdepartment store. There are several thousand mining corporations in theThree Americas which maintain general stores for the con-venience of employes and their families. These stores arecarried
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