Chicago : Engineering and Contracting Pub. Co. · leaf 218
ate, andthe wheels are of best chilled iron. The costof the two skips purchased is $298.20, of which$18.20 is freight. Information from a manager in CrippleCreek gives the fact that one stoping drillwill break down 8 tons of ore. This is alsochecked by the report of the Portland com-pany, showing… … Head House for Poverty Gulch Mines. The minimum size sheave is 48x%-in.(rope)—36 ins. diameter. Its price with balland socket boxes, $45 plus freight on 430 lbs.—$47.80. The head frame (4 posts) is to be placed onthe top of the ore bin. Though the skip andweight of ore is to be regularly sustained…
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