Show MINE TRACKS THEIR LOCATION AND construction the mcgraw hill hili book company of new york has just issued a page book entitled mine tracks their location and construction by J mccrystle E M it treats briefly on the materials used and the principles involved in the design and installation stal lation of mine tracks switches swi switches iches frogs etc together with a set of rules for a standard practice the gradual displacement of animals by mechanical haulage as the motive power in mine transportation the successive increases in the weight of the locomotives employed the improvements in car journals and rolling stock the introduction of the steel car for haulage the elimination of short radious curves all admitting of longer and heavier trains at relatively high speed are making imperative a closer attention to track material and construction the book contains numerous designs and illustrations and will be found of value to the engineer manager superintendent in short to all who know the grief caused by poorly constructed mine tracks it contains chapters on rails ties projection of haulage roads grades gravity grades frogs and switches and locating the turnout together with a chapter of rules price net for sale by the mining review |