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在 Vaal Reefs 矿五号竖井,区段工程师斯瓦特(Swart)解决了装载深井提升箕斗时由于钢绳拉伸而产生的矿石撒落问题。斯瓦特发现,载重10吨的箕斗,平均仅能装7.5吨,并且每天必须处理18吨撒落的矿
At Vaal Reefs shaft No. 5, section engineer Swart solved the problem of ore spilling due to steel wire draw when loading deep well hoists. Swat found that a 10-ton skip could average only 7.5 tons and must handle 18 tons of spilled ore per day