Salt Lake Tribune | 1915-11-14 | Page 19 | Cardiff If Mining with Power Drills

G1IFF IS MINING WITH POWER DRILLS Hand drilling in the Cardiff mine is a tliini; of the past, the electrical installation in-stallation has been completed, with a compressor that has a capacity of eipht larce-size machine drills, and shipments will be maintained at the rate of 125 tons of ore per day, according to President Presi-dent and General Afanager Kzra Thompson, Thomp-son, who has returned from a visit of inspection to the mine. Work has already been started to straighten out the lonjz tunnel. The track will be equipped with twentv-five-pound rails, and the electric motor will easily handle from ten to fifteen cars, ea'-h" carrying a ton and a half of ore. The face of the tunnel, which encountered encoun-tered a horse of lime after following the big vein on its strike for 225 feet, will be sent ahead in tho lime to pick up the ore, which has been proved by a drift from the main tunnel to continue con-tinue beyond the lime. A fissure which is known to exist in the lime will be explored as soon as it is cut by the tunnel. The winze, which has attained a depth of 100 feet below the tunnel level, will be snnk deeper, and stations cut at intervals of 100 feet. The ore in the winze, which is the richest yet found in tho mine, will be stope.d and hoisted to the surface through the incline in-cline shaft, which will be equipped with a double-track skip. A drive of about 1000 feet will be made to intersect and develop the west contact. Platforms arc to be placed at intervals inter-vals of twenty feet in the raise which connects the "upper and lower tunnpls. Ore development will be pushed in this working, although its primary purpose was for ventilation and to enable the miners to enter the mine from the upper tunnel durincr the winter month. Manager Thompson says that there will be no difficulty in keeping the road open during tho winter, and that shipments ship-ments will be maintained at tho rate of 125 tons a day.