. Transactions. uts and caps on the outside, and necessitates oiling only once in threeor four weeks. HOISTING. At the Centre Star shaft there is installed a sieam hoist made byWebster Camp and Lane, of Akron, Ohio, with two drums, each 6 3 ft., with a capacity of 1700ft. of rope of sin. diameter. Theaverage winding speed is 800 ft. per minute, with a maximum of 1200 the motions are controlled by hand levers except the steam drum 462 The Canadian Mining Institute. brake. This consists of a governor which is connected with the the wheel goes too fast, the governor allows
. Transactions. uts and caps on the outside, and necessitates oiling only once in threeor four weeks. HOISTING. At the Centre Star shaft there is installed a sieam hoist made byWebster Camp and Lane, of Akron, Ohio, with two drums, each 6 3 ft., with a capacity of 1700ft. of rope of sin. diameter. Theaverage winding speed is 800 ft. per minute, with a maximum of 1200 the motions are controlled by hand levers except the steam drum 462 The Canadian Mining Institute. brake. This consists of a governor which is connected with the the wheel goes too fast, the governor allows compressed air toenter a cylinder, which causes a brake to press on the wheel. Whenthe speed passes 900 ft. per minute this mechanism comes into engines are 14 in. x 18 in. stroke, with a Stevenson reversinggear. A Lane friction clutch permits of either drum being run inde-pendently of the other; a necessary thing when there are severallevels from which hoisting is done. The War Eagle has a duplicate of. War Eagle. Josie. I,e Roi. Looking East from Le Roi Flume. this engine in its main shaft. The round rope is prevented from cut-ting the foot wall shaft timbers by rollers on the wall plate at longintervals. The skip used in the Centre Star and War Eagle Mines is detailedin the drawing, and is also shown in the photo ot the Centre Star shaftat the surface. It runs on a 30 lb. per yard steel track spiked to thefootwall plates in the shaft. The shaft guides are chiefly for safety pur-poses, for the skip dogs will grip them in case of accident to the guides also serve to keep the skip steady, as the skip body is only i Mining in the Rossland District. 463 fastened to the frame on the rear axle. The weight of the skip is 2,400lbs., and as it carries a load of 4,600 lbs. the total weight of the loadedskip, without the rope, is 7000 lbs. It is proposed to increase thehoisting capacity vhen it becomes necessary by attaching a cage underthe skip. The skips in these min
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Keywords: ., book, bookcentury1800, booksubjectmineralindustries, bookyear1895
