. Transactions. erbalance or singly, as desired. Heating Plant.—This consists of a Slurtevant fan heater, andheats the headworks and sorti g room by heat generated from thee>chaust steam of the hoisting engines. Combination Shajt.—This shaft, having dimensions of 27)4 > f>feet clear of outside timbers, is sunk on the average dip of the vtin,69° from the horizontal, to a depth of 1,125 feet (June 3oih, 1901). It is divided into five compartments, two of which are used ex-clusively as roadways through which the ore is hoisted from the pocketsat the stations on the various mine levels an
. Transactions. erbalance or singly, as desired. Heating Plant.—This consists of a Slurtevant fan heater, andheats the headworks and sorti g room by heat generated from thee>chaust steam of the hoisting engines. Combination Shajt.—This shaft, having dimensions of 27)4 > f>feet clear of outside timbers, is sunk on the average dip of the vtin,69° from the horizontal, to a depth of 1,125 feet (June 3oih, 1901). It is divided into five compartments, two of which are used ex-clusively as roadways through which the ore is hoisted from the pocketsat the stations on the various mine levels and delivered to the crushingmachinery at the headworks; the two adjoining ones being used forthe general mine traffic, that is, hoisting and lowering men, timber,tools and mining supplies; the fifth compartment being used as amanway and for the compressed air and water pipes, and electric wires. From the hanging wall side of the shaft at the various levels, sta- Hoisting ana Haulage in Mining Operations. 329. 330 The Canadian Mining Institute. tions have been cut to accommodate the general traffic of the the floor of these stations, pockets are excavated having aholding capacity of about 500 tons each. These pockets are used toreceive and store the ore trammed from the stopes until it is suitableto hoist it. At the 900-ft. level, a large catch basin or water tank having aholding capacity of 50,000 gallons, has been excavated in the solidrock in the footwall side of the shaft. This tank receives all the waterflowing from the various parts of the mine. Over it the mine pumpingplant is installed, and the accumulated water is lifted a height of 600feet to the Black Bear tunnel, through which it flows to the surface. The four hoisting compartments in the shaft are tracked with 36-Ib. T rails and provided with timber guides, to prevent the hoistingskips from leaving the track. Head Frame at Shaft.—This is 85 feet high from the collar ofshaft to the bearings of t
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Keywords: ., book, bookcentury1800, booksubjectmineralindustries, bookyear1895
