Electricity as a motive power, by count T. du Moncel and F. Geraldy, tr. and ed. by C.J. Wharton |
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Resultat 1-5 av 65
Side 12
... seen in Fig . 19. A longer attractive stroke is thus obtained , but the action is not so powerful . This same action may be obtained with a straight armature pivoted between the poles of an electro- magnet , if these are enlarged and ...
... seen in Fig . 19. A longer attractive stroke is thus obtained , but the action is not so powerful . This same action may be obtained with a straight armature pivoted between the poles of an electro- magnet , if these are enlarged and ...
Side 18
... seen that they are susceptible of maximum , and the conditions necessary in order to attain this maximum may be established : first , with reference to the resistance to be given to the magnetising coils ; secondly , with regard to the ...
... seen that they are susceptible of maximum , and the conditions necessary in order to attain this maximum may be established : first , with reference to the resistance to be given to the magnetising coils ; secondly , with regard to the ...
Side 29
... seen , the principal difficulties met with in the construction of electromotors are : 1st , the destructive effects of sparking on the com- mutators ; 2nd , the short attractive distance of the electro - magnets ; 3rd , the current ...
... seen , the principal difficulties met with in the construction of electromotors are : 1st , the destructive effects of sparking on the com- mutators ; 2nd , the short attractive distance of the electro - magnets ; 3rd , the current ...
Side 32
... seen , to impede , to a certain extent , the spreading of the voltaic current through the mass of the wire of the bobbins ; but it is not enough so to obstruct the derivation of the extra - current , which is of higher tension , and ...
... seen , to impede , to a certain extent , the spreading of the voltaic current through the mass of the wire of the bobbins ; but it is not enough so to obstruct the derivation of the extra - current , which is of higher tension , and ...
Side 42
... seen , besides , that in employing electro - magnets with the cross- piece divided by a piece of copper , according to Hequet's arrangement , the residual magnetism is greatly diminished . As for the inherent disadvantages of magnetic ...
... seen , besides , that in employing electro - magnets with the cross- piece divided by a piece of copper , according to Hequet's arrangement , the residual magnetism is greatly diminished . As for the inherent disadvantages of magnetic ...
Vanlige uttrykk og setninger
Académie des Sciences acting action apparatus applied armature arrangement attractive force axis battery bobbin brake brushes Bunsen cells centimetres circular cloth commutator conductor constructed copper core crank crown 8vo cylinder described developed diameter direction distance dynamo edition effects electric current electro-magnets electromotive force employed Engineers experiments exterior circuit fixed Froment furnished give Gramme machine heat horse-power increase induction inductor insulated intensity inventor kilogrammes kilogrammetres length lever locomotive magnetic core magnetic field magnetising magnetising coils Marcel Deprez means mechanical ment metal metres Miesbach millimetres motion motive power motor movable movement necessary obtained pieces plates poles principle produced proportion quantity rails railway receiver residual magnetism resistance reversed revolving ring rods rotary rotation seen shaft shown in Fig Siemens similar soft iron solenoid speed Steam steam-engine stroke tension tion transport of force Treatise tricity Trouvé tube turn utilised wheel wire zinc
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Side 318 - A Descriptive Treatise on Mathematical Drawing Instruments : their construction, uses, qualities, selection, preservation, and suggestions for improvements, with hints upon Drawing and Colouring. By WF STANLEY, MRI Fifth edition, with numerous illustrations, crown 8vo, cloth, 5-?. Spons' Architects and Builders Pocket-Book of Prices and Memoranda.