Elements of Construction for Electro-magnetsE. & F. N. Spon, 1883 - 86 sider |
Inni boken
Resultat 1-5 av 31
Side
... proportion which should exist between the depth of the mag- netic coil and the diameter of the iron cores Consequences of the preceding laws .. 9 12 .. .. 23 .. 3. Conditions of maximum as regards the length of the iron core .. 15 ...
... proportion which should exist between the depth of the mag- netic coil and the diameter of the iron cores Consequences of the preceding laws .. 9 12 .. .. 23 .. 3. Conditions of maximum as regards the length of the iron core .. 15 ...
Side 7
... proportion which exists between these coils and the diameter of the magnetic core ; Thirdly , to the dimensions themselves of the electro - magnet . It is , however , important to remember that , to obtain the reduced length of the ...
... proportion which exists between these coils and the diameter of the magnetic core ; Thirdly , to the dimensions themselves of the electro - magnet . It is , however , important to remember that , to obtain the reduced length of the ...
Side 8
... proportion to g2 , will be in inverse proportion to g4 ; but the quantity q R g2 which is not in the same case as H , because it is not obliged to fill a fixed space , will remain in inverse proportion to g2 ; so that the denominators ...
... proportion to g2 , will be in inverse proportion to g4 ; but the quantity q R g2 which is not in the same case as H , because it is not obliged to fill a fixed space , will remain in inverse proportion to g2 ; so that the denominators ...
Side 12
... exterior circuit , obtain an expression susceptible of maximum such that the relation of R to H shall be either of those given in Proportion between Depth of Coils and Core . 13 the 12 Elements of Construction for Electro - Magnets .
... exterior circuit , obtain an expression susceptible of maximum such that the relation of R to H shall be either of those given in Proportion between Depth of Coils and Core . 13 the 12 Elements of Construction for Electro - Magnets .
Side 13
... proportion as the coil is lengthened by reason of the increase of the magnetic core . If we take the results of the preceding expressions as regards c considered as variable and reduce them to zero , we find that the maximum conditions ...
... proportion as the coil is lengthened by reason of the increase of the magnetic core . If we take the results of the preceding expressions as regards c considered as variable and reduce them to zero , we find that the maximum conditions ...
Andre utgaver - Vis alle
Vanlige uttrykk og setninger
according advantage armature arrangement Assoc attractive force battery bobbins Bunsen cell calculations centi centimetre circuit of resistance cloth conditions of maximum consequence consider crown 8vo cube Daniell cells deductions depth diameter dimensions distance electric intensity Electric Lighting Electric Telegraph electro-motive force equal experiments expression exterior circuit exterior resistance Fcap FLEEMING JENKIN galvanometer given circuit given electro-magnet grammes Inst insulating covering iron core kilometres laws length less magnetic core magnetic saturation magnetising coils maximum conditions metres of telegraph millimetre Muller number of cells number of elements number of turns obtain ohms P. L. SIMMONDS plates Pocket-Book poles Practical Treatise preceding formulas proportion quantity ratio Second edition sewed Society of Telegraph standard electro-magnet suppose Tables Telegraph Engineers telegraph wire thickness Third edition three electro-magnets tion total number total resistance vary
Populære avsnitt
Side 10 - Assistant. Embracing Lathe Work, Branch Work, Core Work, Sweep Work, and Practical Gear Constructions, the Preparation and Use of Tools, together with a large collection of useful and valuable Tables.
Side 11 - Screw Cutting Tables, for the use of Mechanical Engineers, showing the proper arrangement of Wheels for cutting the Threads of Screws of any required pitch, with a Table for making the Universal Gas-pipe Threads and Taps.
Side 12 - A Pocket-Book for Boiler Makers and Steam Users, comprising a variety of useful information for Employer and Workman, Government Inspectors, Board of Trade Surveyors, Engineers in charge of Works and Slips, Foremen of Manufactories, and the general Steamusing Public. By MAURICE JOHN SEXTON. Second edition, royal 32mo, roan, gilt edges, S^.
Side 10 - The Draughtsman's Handbook of Plan and Map Drawing; including instructions for the preparation of Engineering, Architectural, and Mechanical Drawings. With numerous illustrations in the text, and 33 plates (15 printed in colours). By GG ANDRE, FGS, Assoc.
Side 9 - D'A. JACKSON, Assoc. Inst. CE 8vo, cloth, I2s. 6d. Practical Hydraulics ; a Series of Rules and Tables for the use of Engineers, etc., etc. By THOMAS Box. Fifth edition, numerous plates, post 8vo, cloth, $s.
Side 11 - Sanitary Engineering: a Guide to the Construction of Works of Sewerage and House Drainage, with Tables for facilitating the calculations of the Engineer. By BALDWIN LATHAM, CE, M. Inst. CE, FGS, FMS, Past-President of the Society of Engineers.
Side 3 - Long-Span Railway Bridges, comprising Investigations of the Comparative Theoretical and Practical Advantages of the various adopted or proposed Type Systems of Construction, with numerous Formulae and Tables giving the weight of Iron or Steel required in Bridges from 300 feet to the limiting Spans.; to which are added similar Investigations and Tables relating to Short-span Railway Bridges. Second and revised edition. By B. BAKER, Assoc. Inst. CE Plates, crown 8vo, cloth, 5^.
Side 6 - Spons' Dictionary of Engineering, Civil, Mechanical, Military, and Naval; with technical terms in French, German, Italian, and Spanish, 3100 pp., and nearly 8000 engravings, in super-royal 8vo, in 8 divisions, 5/.
Side 2 - Abstracting, with Examples in illustration of each Trade. Billing. Examples of Preambles to each Trade. Form for a Bill of Quantities. Do. Bill of Credits. Do. Bill for Alternative Estimate. Restorations and Repairs, and Form of Bill. Variations before Acceptance of Tender. Errors in a Builder's Estimate. Schedule of Prices. Form of Schedule of Prices. Analysis of Schedule of Prices. Adjustment of Accounts.
Side 15 - Engines, Varieties of. Explosives. Fans. Founding, Moulding and the practical work of the Foundry. Gas, Manufacture of. Hammers, Steam and other Power. Heat. Horse Power. Hydraulics. Hydro-geology. Indicators. Iron. Lifts, Hoists, and Elevators. Lighthouses, Buoys, and Beacons. Machine Tools. Materials of Construction. . Meters. Ores, Machinery and Processes employed to Dress. Piers. ' Pile Driving. Pneumatic Transmission. Pumps. Pyrometers. Road Locomotives. Rock Drills. Rolling Stock. Sanitary...