TransactionsAmerican Institute of Mining, Metallurgical, and Petroleum Engineers, American Institute of Mining Engineers The Institute, 1886 Some vols., 1920-1949, contain collections of papers according to subject. |
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
acid Allegheny Allegheny County amount analyses anthracite anticlinal average blast blast-furnace boilers bottom brick bullion carbon Carboniferous castings cent charge chloride coal coal-bed coke colliery Company condensers containing copper Cornwall County Creek cubic deposits diameter district dolomite engineer feet thick felsite flue fuel fumes furnace gases geological gold gray heat hematite Hill inches ingots iron iron-ore Leadville lime limestone loss lower magnesia magnetite manganese manufacture material metal miles mill mineral mines Nova Scotia obtained Ohio outcrop oxide P. O. Box paper Pennsylvania Philadelphia phosphorus pig-iron Pittsburgh plates pounds precipitate pressure quantity quartzite quicksilver River roasting rocks rolls samples sand sandstone seam shales side silver solution square square miles steel stove strata Street sulphate sulphur surface Sydney River temperature tests tion tons tuyeres upper Valley veins York City
Δημοφιλή αποσπάσματα
Σελίδα 677 - Hall stated in a paper read before the North of England Institute of Mining and Mechanical Engineers that "flame traveled the length of the adit.
Σελίδα xlvii - Institute is not, as a body, responsible for the statements of factor opinion, advanced in papers or discussions, at its meetings, and it is understood that papers and discussions should not include matters relating to politics or purely to trade.
Σελίδα xliv - To promote the arts and sciences connected with the economic production of the useful minerals and metals and the welfare of those employed in these industries by means of meetings for social intercourse, and the reading and discussion of professional papers, and to circulate by means of publications among its members the information thus obtained...
Σελίδα xlvii - Rules may be amended at any annual meeting by a two-thirds vote of the members present, provided that written notice of the proposed amendment shall have been given at a previous meeting.
Σελίδα xlv - The duties of the president, vicepresidents, treasurer and secretary, shall be such as usually pertain to their offices, or ma'y be delegated to them by the unanimous vote of the executive committee.
Σελίδα 508 - ... the smelting oven. The iron which is here made, was to me described as soft, pliable and tough, and is said to have the quality of not being attacked by rust so easily as other iron; and in this point there appears a great difference between the Spanish iron and this in ship-building.
Σελίδα 699 - ... what position in the furnace they will be placed. Another trouble is to find out where the fault lies, when complaint is made. This is almost impossible. It may be in the construction of the furnace, or in bad bricklaying, or in the grade of the brick, or that the brick were not hard-burned. And if a sample lot of brick is sent to a mill to be tested the chances are that when the superintendent is asked how the brick stood the test, he will have forgotten all about them. The only way for a manufacturer...
Σελίδα 617 - I take the opportunity to express my opinion in the strongest terms, that the amazing exhibition of oil and gas which has characterized the last twenty years, and will probably characterize the next ten or twenty years, is nevertheless, not only geologically but historically, a temporary and vanishing phenomenon — one which young men will live to see come to its natural end.
Σελίδα 714 - It is found in practice that after the coal is passed through the breaker and screened into different sizes for shipment, the purity of the different sizes, as regards fixed carbon and ash, is very different. This is indicated by the following analyses of specimens collected from the Hauto screen-building of the Lehigh Coal and Navigation Company. These coals are separated into different sizes according to the mesh of the screen over which they pass.
Σελίδα 325 - The freest government cannot long endure when the tendency of the law is to create a rapid accumulation of property in the hands of a few and to render the masses poor and dependent.