E/MJ : engineering and mining journal . in com-pression, or in the proper selection of lubricants,are points which should be cleared up. There arefew absorbents of carbon monoxide, and probablynone is practical. It appears to us that the designof the engine, the perfection of a suitable carburetor,and the standardization of the operating details ofthe engine are the significant features that mightlead to the development of an engine unit that couldbe satisfactorily used underground. Until this isdone there will be the temptation to use the existinggasoline locomotive underground, and though it
E/MJ : engineering and mining journal . in com-pression, or in the proper selection of lubricants,are points which should be cleared up. There arefew absorbents of carbon monoxide, and probablynone is practical. It appears to us that the designof the engine, the perfection of a suitable carburetor,and the standardization of the operating details ofthe engine are the significant features that mightlead to the development of an engine unit that couldbe satisfactorily used underground. Until this isdone there will be the temptation to use the existinggasoline locomotive underground, and though its usemay be restricted to those parts of a mine wherethere is good ventilation, occasions may arise whereportions of the mine might become charged withdangerous amounts of monoxide in quantitiesgreater than even men accustomed to the fumescan safely inhale. It seems to us that the investi-gating already done by the Bureau of Mines mightwell be extended and pushed to early completion. December 6, 1919 Engineering and Mining Journal. 855. Mining Operations in Chile
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