MINING MINE~EXPLOSIVES~BLASTING~DRILLING BIT DRILL COAL

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PROFUSELY ILLUSTRATED * 579 PAGE * * HARDCOVER BOOK * Profusely Illustrated with Photographs, Diagrams and Drawings This Hardcover 579 page Text book covering the Elements of Mining with Chapters: Introduction to the Mining Industry ** Prospecting * * Mining Law ** Subsidence and the Support of Excavations ** Explosives * * Drilling and Blasting ** Shafts ** Mining Methods ** Mine Haulage ** Mine Drainage and Pumping ** Compressed Air ** Ventilation * * Sampling and Valuing Mines ** Organization, Management, Safety Work ** Index ** some contents of Subsidence and the Support of Excavations includes: kinds of timber used in mining; types of mine timbering; blocking and wedging; framing square sets; shaft sets; lagging; ladders; inclined shafts; cribbing; timbering in running ground; waste filling; the preservation of timber; methods of treatment; and more EXPLOSIVES: combustion explosion and detonation; black powder; Judson powder; Nitro; blasting gelatin; straight and low-freezing dynamites; ammonia dynamites; gelatin dynamites; seismic explosives; quarry powder; pellet powder; airdox; cardox; hydrox; detonators; delay detonators; miners squibs; electric squibs; Primacord-Bickford fuse; capping fuse; making the primer; electric firing; gases from blasting; dynamite strength; and more DRILLING and BLASTING: the empire drill; uses of the drill; construction and operation; // diamond drill; operation; bits; rate of drilling; recovery of core; deflection of holes; oil-well drilling; // calyx or shot drilling: uses of the drill; operation; // rock drills: piston drills; hammer drills; the sinker or plugger; the stoper; rotation of steel; wagon drills; horizontal borers; // drill steel: forms of drill steel; shanks; changes of steel; effect of bit gauge on drilling speed; force and frequency of blow; bits; // hardening and forging drill steel: automatic heat-treating machines; drill-sharpening machines; furnaces; // Blasting: free faces; open cuts; snake holes; vertical holes; gopher hole, tunnel or coyote blasting; springing holes; // blasting underground: drifts and crosscuts; tunnels; and more MINING METHODS: placer mining methods; open-cut mining; underground mining; supported stopes; caving systems; / coal mining methods: coal stripping; underground mining of coal; large chapter with lots more information While Mining may be said to be in the Transtion Stage Between an Art and a Science ** Mining operations are being based more and more on scientific guidance than on the rule-of-thumb methods that have been followed for so long in many branches of the industry. Important reasons for this change are the need to reduce the cost of operations and the fact that, as mining is carried to increasing depths, rocks are under great pressure and temperature in the mine workings becomes oppresively high. The problems presented by these conditions can be solved only the Application of Engineering Skill based on Scientific knowlege of the Proper Procedure to follow and The Mining Engineer needs to understand his Tools and to know both their field of application and their limitations Elements of Mining textbook is organized to Present these aspects of Mining to the beginner in Mining Engineering. Includes the latest developements in the various operations connected with Mining. In deep mines the question of support has become pressing, as well as the problem of maintaining workable conditions where the rock temperature is high. Single-stage hoisting is being extended to 6,000 ft. Mine dust with its attendant results on the health of miners is being studied, and its production in the mine is being carefully controlled. Detachable bits are superseding the former sharpended drill steel at many mines. plus helpful index for quick and easy reference all in this 579 page hardcover book which is in overall good condition with clean, intact pages and good binding, name blacked out inside, 1958 book measures about 8.5" x 5.75" THANKS SO MUCH FOR LOOKING AT THIS NEAT BOOK - please see all our other ... read more

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