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New York Paper - Environmental Conditions of Deposition of Coal (with Discussion)
By David White
Jan 1, 1925
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Development Program in a Part of the Ventura Avenue Oil Field
By Joseph Jensen
MANY fields have been zoned by nature with shales and intermediate waters between oil zones. Limitations thus imposed have been the basis on which the field was developed. In contrast thereto, in the
Jan 1, 1930
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Technical Papers and Notes - Institute of Metals Division - Hydrogen In Titanium-Aluminum Alloys
By L. W. Berger, R. I. Jaffee, D. N. Williams
The effects of hydrogen on the properties of binary Ti-A1 alloys containing 2.5, 5, and 7 pct aluminum and ternary alloys of the same compositions with added interstitial elements oxygen, nihrogen, an
Jan 1, 1959
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In Memoriam (dc0b46dd-9cb1-4690-b9f2-613d55cf21c5)
CAPTAIN JOHN H. BALLAMY John H. Ballamy, Captain on the Regimental Staff of the 103d Engineers, was killed near Fismes, on August 9, 1918. Captain Ballamy was born at Plymouth, Pa., in 1886 and gra
Jan 11, 1918
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Young's Modulus - Its Metallurgical Aspects
By David J. Mack
A SURVEY and critical appraisal of published information about Young's modulus was originally made by the writer because of a complete lack of information about this very important quantity in wo
Jan 1, 1945
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Reservoir Engineering - General - A Correlation of the Viscosity of Hydrocarbon Systems With Pressure, Temperature and Composition
By H. T. Kennedy, J. E. Little
An empirical equation for the prediction of the viscosity of several pure paraffin hydrocarbons and nitrogen is presented. It involves temperature, pressure and six constants of the material, and it a
Jan 1, 1969
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Institute of Metals Division - Porosity in Formed Titanium
By R. A. Wood, R. I. Jaffee, H. R. Ogden, D. N. Williams
Strain-induced porosity has been found to occur in titanium and other materials at tensile strains greater than the uniform elongation of the material. Porosity in titanium increases with increasing s
Jan 1, 1960
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6. The Grace Mine Magnetite Deposit, Berks County, Pennsylvania
By Samuel J. Sims
The Grace mine magnetite deposit, located 2 miles north of Morgantown in Berks County, Pennsylvania, was discovered in 1948 by an aerial magnetometer survey. It is situated on the southern border of t
Jan 1, 1968
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Electric Welding Of Large Storage Tanks
By Harold Price
ONE year ago, that is in January, 1923, there had not been constructed a single oil-storage tank of 55,000-bbl. or more capacity with a completely electric welded roof and bottom. Today, there are at
Jan 6, 1924
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Fine Grinding and Concentration at Climax - Molybdenite Easily Floated, But Maximum Recovery And Iron and Copper Elimination Sought
By E. J. Duggan
CLIMAX ore is an altered and highly silicified granite, about half of the gangue being quartz. Molybdenite is the only mineral recovered and most of it is intimately associated with the quartz in fine
Jan 1, 1946
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Institute of Metals Division - Intermediate Phase in the Uranium-Zirconium System
By A. N. Holden, W. E. Seymour
DURING the last several years, the U-Zr system has been studied at many laboratories as one of the research programs sponsored by the Atomic Energy Commission. The equilibria in part of this system ha
Jan 1, 1957
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Coal - Characteristics of Coal Preparation Plant Slurries (Mining Engineering, Jan 1960, pg 49)
By H. B. Charmbury, D. R. Mitchell
Everyone in the coal industry from top management to the preparation engineer is vitally interterested in recovering as much salable coal as possible from the run-of-mine product. Coal losses from a p
Jan 1, 1961
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32. Leadville District, Colorado
By Ogden Tweto
The Leadville district, on the west flank of the Mosquito Range in central Colorado, has produced silver, zinc, lead, gold, and minor metals valued at $512,000,000. The ore deposits are in a sequence
Jan 1, 1968
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The Alpha Solid Solution Field Of The Copper-Manganese-Zinc System
By J. R. Long, A. H. Roberson, T. R. Graham, R. S. Dean
EXPERIMENTAL work on the properties of high-purity alloys of the copper-manganese-zinc system has necessarily required extensive metallographic work to determine the equilibrium conditions in this sys
Jan 1, 1945
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Rock Mechanics - Theory of Similitude as a First Approximation in the Design of Coal Pillars
By Phillip E. Deering, Robert M. Cox
A model pillar study was conducted in which the engineering principles of dimensional analysis were applied to the problem of coal mine pillar design. The paper reviews the theory of similitude as app
Jan 1, 1969
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Conference on Production and Design Limitation and Possibilities for Powder Metallurgy (Metal Technology, January 1945) - Some Experiments on the Effect of Pressure on Metal-powder Compacts - Discussion
By Jerome F. Kuzmick
Condusions. From the work on aluminum powder, the following general con clusions can bc drawn: I. The physical properties of aluminum compacts, such as density. strength and ductility, inc
Jan 1, 1945
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The Precious Metals
By Arthur Mackwell
The role of the precious metals is changing rapidly. They are becoming primarily materials of modern industry, and their decorative and monetary functions are diminishing in relative importance. Certa
Jan 1, 1976
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59. The Geology of the Iron King Mine
By Arthur R. Still, Paul Gilmour
The ore deposit of the Iron King mine occurs in a group of steeply-dipping metamorphosed eugeosynclinal volcanic and sedimentary rocks of Precambrian age. Within this sequence, the ore deposit lies at
Jan 1, 1968
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Employment (50504a98-4285-4762-9b12-a0d61a065bc0)
ENGINEERS AVAILABLE (Under this heading will be published notes sent to the Secretary of the Institute by members or other persons introduced by members.) Member, technical graduate, aged 36. Ex
Jan 9, 1915
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Variations in Microstructure Inherent in Processes of Manufacturing Extruded and Forged Brass
By Ogden Malin
IN conducting the manufacture of extruded brass rods and brass forgings it has been noticed that there is considerable variation in the physical properties, particularly the machinability of different
Jan 1, 1932