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A Practical Treatise on Friction of Air in Mines (Classic Reprint)
John J. Atkinson
Sin vista previa disponible - 2017
air circulating air in mines air increases air per minute air-way 10 feet amount of friction amount of ventilation Anemometer applied barometer bing surface changes of density cloth co-efficient of friction collieries Columbia College cubic feet cubic foot downcast shaft engravings extent of rubbing feet of air feet per minute feet square friction of air heat horse-power hygrometer Hypsometry i2mo i8mo inches of mercury increases or decreases intakes Iron large air-way length long split multiplied overcome the friction Peclet pipes Practical proportion quantity of air reduced required to overcome revised and enlarged rise or dip rise splits rubbing surface exposed sectional area small air-way splits of air splitting the air square feet square foot Steam Engine Telegraphy temperature thousands of feet tilation tion total pressure total quantity Treatise U. S. Navy upcast shaft velocity in feet velocity in thousands ventilat ventilating pressure water gauge weight
Página 72 - A Treatise on the Metallurgy of Iron : Containing Outlines of the History of Iron Manufacture, Methods of Assay, and Analysis of Iron Ores, Processes of Manufacture of Iron and Steel, etc., etc.
Página 82 - A TREATISE on the STEAM ENGINE, in its various Applications to Mines, Mills, Steam Navigation, Railways and Agriculture. By J. BOURNE, CE Eighth Edition; with Portrait, 37 Plates, and 546 Woodcuts, it o. 42s. CATECHISM of the STEAM ENGINE, in its various Applications to Mines, Mills, Steam Navigation, Railways, and Agriculture.
Página 78 - THE THEORY OF STRAINS IN GIRDERS —and Similar Structures— with Observations on the Application of Theory to Practice, and Tables of Strength and other Properties of Materials.
Página 81 - NP Modern Marine Engineering, applied to Paddle and Screw Propulsion. Consisting of 36 colored plates, 259 practical woodcut illustrations, and 403 pages of descriptive matter. The whole being an exposition of the present practice of James Watt & Co.
Página 83 - New method of correcting Lunar Distances, and improved method of finding the error and rate of a chronometer, by equal altitudes, 8vu, cloth 2 oo CHURCH (JOHN A.) Notes of a Metallurgical Journey in Europe.
Página 75 - SWEET (SH) Special Report on Coal ; showing its Distribution, Classification, and cost delivered over different routes to various points in the State of New York, and the principal cities on the Atlantic Coast. By SH Sweet. With maps, i vol.
Página 71 - CE Lowell Hydraulic Experiments. Being a selection from experiments on Hydraulic Motors, on the Flow of Water over Weirs, in open Canals of uniform rectangular section, and through submerged Orifices and diverging Tubes. Made at Lowell, Mass.
Página 82 - Gen. JG, USA Submarine Blasting in Boston Harbor, Massachusetts. Removal of Tower and Corwin Rocks. Illustrated with 7 plates. 4to, cloth $3.50 FRANCIS, Jas.
Página 76 - WILLIAMSON, RS On the Use of the Barometer on Surveys and Reconnoissances. Part I. Meteorology in its Connection with Hypsometry. Part II. Barometric Hypsometry. With Illustrative tables and engravings. 4to, cloth $15 .00 WILLIAMSON, RS Practical Tables in Meteorology and Hypsometry, in connection with the use of the Barometer.