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Show PAGE JUNE 18. 1954 The Western Mineral Survey, Salt Lake City. Utah TWO BULLDOZERS Jack-of-a- ll The use of scrapers, tractors, bulldozers, rippers, motor graders, wagons and trucks in strip mining coal have resulted in the recovering of more coal from a given area at more tons per man T rades in Strip Mining 1. The scraper is used in aux- iliary stripping where the is so thick that the wash or earth must be removed to allow the boom equipment to work within its economical limits. 2. In cases where there is inhours than in underground minfastest the been has This adequate spoil room for boom ing. mincoal tool operations, that is, where of the growing phase dectwo coal outcrop is bothered by propin the past ing Industry ades. erty lines, highways, railroads, Both the crawler and rubber pipe lines, overhead power lines tired tractors and the bulldozer and undivertable streams, the ovhave proven to be particularly erburden must be moved, for a versatile in coal stripping oper- width which will provide suffiations. All of these have played cient space for the spoil of the a major role in the success of next succeeding strip cut by the shovel. , this method of mining. ex3. Widening a bench at the side These tools are often used clusively in the removal of over- of the pit to provide greater castburden and are being accepted ing area for the shovel or dragmore and more as auxiliary line. 4. Stripping wet top layers of equipment in operations where shovels are and which might sluff and earth draglines large of cause overburslides into a shovel cut. used for the removal 5. dent and the loading of coal. Cutting the initial box cut, Strip mining methods have depositing the spoil out of the shown tremendous advancement be called . the in the past 50 years. way of later drag operation. 6. Use on small isolated blocks are a of number Following uses and possibilities of the of coal that do not warrant Scrape t.in coal stripping opera- the expense of the movement of a large dragline. tions. oven-burde- n jack-of-all-wo- rk 7. Particularly adapted to hill- side and hilltop operations.. . Cut new beds for temporary or permanent stream diversions. Build dams and settling ponds. 9. Build railroad and track haul road grades. 10. Construction and maintenance of ditch lines. 11. Grading for buildings around mining site. 8. Disposal of refuse. Stock piling of coal when sales are slow. Can lay coal in layers and compact. 14. Can be shovel loaded and used as a coal hauler. 15. Extremely economical in small mining productive plots in widely scattered fields or iso12k 13. lated areas. 16. Stripping overburden and spreading it evenly, reducing time. can easily The in the coal stripping fields. The bulldozer is used in applications ranging from uprooting and windrowing trees and shrubs preparatory to stripping operations to loading and unloading heavy machinery. (See picture page 4) back-fillin- g tractor-bulldoz- er AMC Drafts 1954 Plans For1 54 Metal Exposition - Flat for the program for the 1954 Metal and Nonmetalic Mining Convention and Exposition of the American Mining Congress, to' be held here the week of September 20, were drafted by a nationwide committee of mining industry officials meeting in San FrantiScd feceritiyj Arrangements for this important mining convention are fflOV ing ahead rapidly under the general direction of Donald H McLaughlin, president of the Homestake Mining Co., of this city, and chairman of the West- nonmetallic minerals, mechanizaern division of the American tion In underground and open pit Mining Congress. advances in ore treatThe committee which is form- mining, safety, and several sessions ulating the program for the meet- ment, to the various aspects of devoted ing is headed by Frank R. Milli-ke- the uranium mining industry. vice president, Kennecott Officials the Federal Govof Copper Corp., New York City. ernment charged with the con- - ' Some four to six thousand minduct of defense mobilization, ing men are expected to attend mineral production, stockpiling, the meeting, representing all and metal and mineral procurebranches of the mining industry. ment will invited to address be Federal policies with respect the in meeting September. Memto the domestic mining indusof both the Senate and try were foremost among the bers House will likewise be invited topics discussed by the proto speak to the mining industry. gram committee today. Industry leaders from- - all. Mining industry officials exparts of the country will parpressed concern over the delay on the part of the government ticipate in the program and In announcing details of its new convention deliberations, and minerals stockpiling program and the industry will draft a set of resolutions setting forth its the failure of the President's Cabon national policies afviews inet Committee to make known the national mineral policies fecting mining. This year's meeting will also be which it is recommending to the Chief Executive Considerable accompanied by the largest exdiscussion was also given to prob- position of metal and nonmetallems of the rapidly expanding lic mining equipment and machinery ever held. Over 150 minuranium Industry. The program committee Is ing equipment manufacturers will display every item used In scheduling convention addresses on the progress being made in mining and ore treatment at San Francisco's Public Auditorium. 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