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Federal Coal Commissions Final Report on Bituminous CoalDURING September, the Coal Commission pre- pared for issue a series of 18 reports on varied aspects of- the bituminous coal industry; the final report, dated Sept. 22, sums up the facts and offers
Jan 10, 1923
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Mine Safety Conference at GlobeTHE SOUTHWEST MINING SECTION of the National Safety. Council held a well attended two-day conference at Globe, Ariz., March 19 and 20; followed by two days of mine-rescue maneuvers at the Old Dominion
Jan 5, 1923
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The Handling of Materials at the Risdon Works of the Electrolytic Zinc Co. of Australasia Ltd.THIS paper deals with the handling of the various materials used in the 100-ton zinc plant at Risdon, and, in view of the magnitude of the works, the configuration of the ground covered by these works
Jan 1, 1923
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Officers of the Institute (several pages missing from this section)Photographs of Officers
Jan 1, 1923
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Canadian Paper - Loading Ore Underground with Scrapers at the Utah-Apex MineBy S. P. Holt
The chief use of scrapers at this mine has been on lead ore of milling grade, clean and dry, in stulled stopes, 50-100 ft. long, 5-12 ft. high, and pitching 20-30°. Scrapers have also been used to fil
Jan 1, 1923
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Canadian Paper - Emergency Power for Mines (with Discussion)By Graham Bright
Before the arrival of central-station power, all coal and metal mines generated their own power and, in many cases, these isolated power plants gave a fair continuity of service. In coal mines that pr
Jan 1, 1923
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New York Paper - Observations on the Occurrence of Iron and Silicon in Aluminum (with Discussion)By E. H. Dix
All commercial aluminum contains small percentages of copper, iron, and silicon as unavoidable impurities. The purest metal obtainable commercially, special grade high purity ingot, contains a maximum
Jan 1, 1923
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Chicago Paper - Federal Taxation of Mines (with Discussion)By L. C. Graton
The federal taxes on incomes and excess profits are of course heavy. In 1917, the value of the mineral production of the United States was a little in excess of $5,000,000,000. The total of federal ta
Jan 1, 1923
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Canadian Paper - Selecting Material for Formed and Drawn Parts (with Discussion)By L. N. Brown
The use of sheet and strip metal has increascd rapidly during the last few years and manufacturers have been called upon for an ever-increasing tonnage, better drawing quality, and better surface. The
Jan 1, 1923
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Canadian Paper - X-Ray Examination of Irregular Metal Objects (with Discussion)By Ancel St. John
Defects in the interior of metal objects are troublesome to both manufacturer and user. For the former, they frequently increase manufacturing cost through the rejection of material when defects appea
Jan 1, 1923
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New York Paper - Heating and Cooling Curves of Large Ingots (with Discussion)By F. E. Bash
About three years ago, the writer presented a paper1 on the rate of heating and cooling of a 24-in. round ingot. The present paper deals with work done on larger ingots at the plant of the Allis Chalm
Jan 1, 1923
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IndexJan 1, 1923
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New York Paper - Studies on the Constitution of Binary Zinc-base Alloys (with Discussion)By W.M. Peirce
The present work has been done in an endeavor to correlate and complete the data on the constitution of alloys of zinc with other common metals, dealing exclusively, however, with the zinc-rich alloys
Jan 1, 1923
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New York Paper - An Inventory of Results of Accident PreventionBy C. A. Allen
For over three years we have been endeavoring to reduce the number of fatalitics and minor accidents in Utah. The physical condition of the FIG: 1.—Number kiLlEd per million short tons of coal prod
Jan 1, 1923
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San Francisco Paper - Suface Tension and Adsorption Phenomena in FlotationBy A. M. Gaudin, A. F. Taggart
Flotation of ores is a practical utilization of the energy that resides in the surfaces of solids and liquids. The best known manifestation of this energy is called surface tension; an equally importa
Jan 1, 1923
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New York Paper - Design and Operation of Roberts Coke Oven (with Discussion)By M. W. Ditto
THe conversion of the beehive coke plants, in this country, to byproduct plants has been slow, because the coal supplies were near the centers of the steel industry. With the growth of this industry,
Jan 1, 1923
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New York Paper - Examples of Subsidence in Two Oklahoma Coal Mines (with Discussion)By J. J. Rutledge
On Sept. 4, 1914, Mine No. 1 of the Union Coal Co., Adamson, Oklahoma, suddenly caved, entombing thirteen miners whose bodies were never recovered. The seam of coal mined, the Lower Hartshorne, averag
Jan 1, 1923
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New York Paper - Effect of Impurities on Zinc-aluminum alloys (with Discussion)By H.E. Brauer
Among the zinc base alloys used for casting in metal moulds, pnrticularly die casting, those alloys containing aluminum usually together with copper, are probably the most widely used. The reason lies
Jan 1, 1923
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Members, Associates and Junior Associates (16f8c5ac-2eaf-410b-aaca-3cf62350258e)LIST OF MEMBERS, ASSOCIATES AND JUNIOR ASSOCIATES ALPHABETICALLY ARRANGED ||Abad, Leopoldo F, College of Min, Univ of California Berkeley, Cal '23 ||Abarquez, Ramon F, Met, Bureau of Seience
Jan 1, 1923
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Geographical ListingALABAMA Alabama City.-Eddy, L. Altoona.-Cain, J. America.-Foreman, J. T. Anniston.-Foster, R. N. Ashland.-Sturdevant, J. C. Bessemer.-Ball, E. M. Calhoun, F. W. Maschmeyer, W. L. McKenzle, W
Jan 1, 1923