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Show UNWATERS MlNElN THIRTY HUTES Seven Troughs Coalition Mining Company Installs New Pumping Outfit. The Seven Troughs Coalition mine has recently installed the new electric pump and it is found to be capable of lifting the water from the mine tn thirty minutes, min-utes, where formerly it took many hours, says the Review-Miner. Stoplng has been discontinued on account ac-count of the air conditions, which have become bad through the recent change of temperature. Heretofore the upper shaft, which is 120 feet above the lower one, acted as a natural chimney and sucked the air down the lower shaft and through the workings. j With the recent change there Is not enough difference in temperature between be-tween the two shafts to permit of automatic auto-matic ventilation and a. six-foot exhaust fan, with a capacity of displacing cubic feet per minute, has been ordered by express and should reach Die mine in a day or two. This fan will be placed In the 1000-foot level and will draw fresh air down one shaft and force It thnuicrh all the workings and out the other shaft. Meantime sinking in the winze is beim? continued, as air conditions are Kood there, for sufficient air is obtained from the compressor, which runs the drilis, to allow of continuing work. |