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MessagePosté le: Jeu 6 Juil - 11:18 (2017)    Sujet du message: The South African Mining Journal And Engineering Record V Répondre en citant


The South African Mining Journal and Engineering Record, Vol. 27: With Which Is Incorporated "the South African Mines, Commerce and Industries"; April 13, 1918 (Classic Reprint)
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Excerpt from The South African Mining Journal and Engineering Record, Vol. 27: With Which Is Incorporated "the South African Mines, Commerce and Industries"; April 13, 1918

Speaking at the last meeting of the South African Institution of Engineers on Mr. Vaughan's paper on the factor of safety in wire ropes, Mr. E. J. Laschinger (past President of the Institution) said, inter ulia The thanks of the Institution are due to the author for his paper, and he especially deserves the thanks of the mining world for putting into the form of a definite proposition a matter which has been exercising the minds of mining engineers for a good few years past. It has been long recognised by those who have made a study of and in vestigated deep-level winding problems that the safety factor a of six at the upper end of a loaded rope could and should be reduced in deep winding with advantage to the mining industry without sacrificing safety in operation. Indeed, for very deep winding, the present Mines and Works Act of the Union of South Africa imposes prohibitive restrictions in certain cases. Mr. Vaughan's proposition is to fix two limits for the factor of safety and to embody these condi tions in the mining regulations, and it is therefore very im portant for engineers here thoroughly to discuss his proposi tion and to criticise the effect of such conditions on the practical operations of the mines, existing or contemplated. 38 $8 IX!

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The South African Mining Journal and Engineering Record, Vol. 27: With Which Is Incorporated "the South African Mines, Commerce and Industries"; April 13, 1918 (Classic Reprint) Unknown Author
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