Bulletin of the American Institute of Mining Engineers, Издања 81-84The Institute, 1913 |
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... and possessing some knowledge of fan design ; one competent to lay out ventilating systems to meet various conditions . READY For distrIBUTION . EMMONS VOLUME ON ORE - DEPOSITS iv MONTHLY BULLETIN , No. 81 , SEPTEMBER , 1913 .
... and possessing some knowledge of fan design ; one competent to lay out ventilating systems to meet various conditions . READY For distrIBUTION . EMMONS VOLUME ON ORE - DEPOSITS iv MONTHLY BULLETIN , No. 81 , SEPTEMBER , 1913 .
Страница 2171
READY For distrIBUTION . EMMONS VOLUME ON ORE - DEPOSITS . Ore - Deposits - a continuation of the " Posepny " Volume . Comprising papers descriptive of ore - deposits and discussions of their origin , edited , with an introduction , by ...
READY For distrIBUTION . EMMONS VOLUME ON ORE - DEPOSITS . Ore - Deposits - a continuation of the " Posepny " Volume . Comprising papers descriptive of ore - deposits and discussions of their origin , edited , with an introduction , by ...
Страница 2178
... DEPOSITS OF KALGOORLIE , Part I. Bulletin No. 42 , Western Australia Geo- ( Exchange . ) Catalogue , 1912-13 . Hanover , 1912. ( ( Exchange . ) ELECTRIC FURNACES IN THE IRON AND STEEL INDUSTRY . By W. Rodenhauser and I. Schoenawa . New ...
... DEPOSITS OF KALGOORLIE , Part I. Bulletin No. 42 , Western Australia Geo- ( Exchange . ) Catalogue , 1912-13 . Hanover , 1912. ( ( Exchange . ) ELECTRIC FURNACES IN THE IRON AND STEEL INDUSTRY . By W. Rodenhauser and I. Schoenawa . New ...
Страница 2179
... DEPOSITS OF THE PHILIPSBURG QUADRANGLE , Montana . ( Profes- sional Paper No. 78 , U. S. Geological Survey . ) Washington , 1913. ( ( Purchase . ) GEOLOGY OF THE GOLD BELT IN THE JAMES RIVER BASIN , VIRGINIA . ( Bulletin No. VII ...
... DEPOSITS OF THE PHILIPSBURG QUADRANGLE , Montana . ( Profes- sional Paper No. 78 , U. S. Geological Survey . ) Washington , 1913. ( ( Purchase . ) GEOLOGY OF THE GOLD BELT IN THE JAMES RIVER BASIN , VIRGINIA . ( Bulletin No. VII ...
Страница 2289
... deposits . General Geology . In a very general way the valley of Flint creek coincides in this region with the boundary between the pre - Cambrian slates of western Montana and the folded Palæozoic rocks of the Rocky Mountain system ...
... deposits . General Geology . In a very general way the valley of Flint creek coincides in this region with the boundary between the pre - Cambrian slates of western Montana and the folded Palæozoic rocks of the Rocky Mountain system ...
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acid allotropy alloy American Institute amount Anaconda apparatus Ariz Asst blast blast furnace blast-furnace Bldg Bolivia bone phosphate Bulletin carbon Carboniferous cent CHARLES Charles Colcock Jones cherty chilled wheels cleaning coal coke Colo Committee compressor containing converter cooling cooling curves Critical Ranges curves cylinder deposits diameter discussion District dust electric Electrical resistance electrolytic Engr field formation fuel furnace gases hammer drill heat hoist increase Institute of Mining Iron and Steel JAMES GAYLEY JOHN lime limestone matte metal Metallurgical method mill Mining Engineers Mont Montana nodules operation Ore-Deposits oxide paper phosphate piston plant practice Present position pressure Proposed pure iron quartzite red-shortness S. F. EMMONS samples School of Mines Secretary shaft shale Sharp flange silica slag Smelting sub-bituminous coal sulphur Supt temperature tests thermocouples tion tuyeres Utah valve vein volume washer WILLIAM Worn York
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Страница 2748 - The libraries of the above-named Societies are open from 9 AM to 9 PM on all week-days, except holidays, from September 1 to June 30, and from 9 AM to 6 PM during July and August.
Страница 2478 - It has been found that the best results are obtained when the tension in the driving side of the rope is only 3 to 4 per cent of the breaking strength.
Страница 2389 - DISCUSSION OF THIS PAPER IS INVITED. It should preferably be presented in person at the New York meeting, February, 1916, when an abstract of the paper will be read.
Страница 2610 - Club (students interested in writing) ; student branches of the national engineering societies, the American Society of Civil Engineers, American Society of Mechanical Engineers, American Institute of Electrical Engineers; American Institute of Mining and Metallurgical Engineers; Social Science Club; Italian Club; Chess Club.
Страница 2202 - A machine rock drill should be simple in construction, and strong in every part. 2. It should consist of few parts, and especially of few moving parts. 3. It should be as light in weight as can be made consistent with the first condition. 4. It should occupy but little space. 5. The striking part should be relatively of great weight, and should strike the rock directly. 6. No other part than the piston should be exposed to violent shocks. 7. The piston should be capable of working with a variable...
Страница 2570 - An examination of some of the heating curves will perhaps give the erroneous impression that Ac2 is an evolution rather than an absorption of heat. The swing back at the maximum is very abrupt following what appears to be a gradual building up of this maximum from an indeterminate low temperature.
Страница 2610 - Society of Naval Architects and Marine Engineers, and the American Institute of Mining Engineers, in connection with the Panama-Pacific Exposition.
Страница 2531 - DISCUSSION OF THIS PAPER IS INVITED It should preferably be presented in person at the Pittsburg meeting, October, 1914, when an abstract of the paper will be read.
Страница 2622 - The same two units haul the 1,400 ton train against the 1.1 grade at 17.5 miles per hour. The passenger locomotives are the same design as the freight locomotives except that they are geared for a maximum speed of 45 miles per hour on tangent level track. The average passenger train is composed of one locomotive unit and three standard passenger coaches. The general design of the locomotives is of the articulated double truck type, all weight being on the drivers.
Страница 2624 - The two end compartments are for the accommodation of the engineer and contain the usual master controller, brake valves, and sand boxes. In addition, there is apparatus for ringing the bell and sanding by compressed air, and raising and lowering the pantograph trolley. The principal data and dimensions applying to the locomotives are as follows : Length inside of knuckles 37 ft. 4 in. Height with trolley down 15 ft. 6 in. Width over all 10 ft. 0 in. Total wheel base 26 ft. 0 in.