Electricity as a motive power, by count T. du Moncel and F. Geraldy, tr. and ed. by C.J. Wharton |
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Side 13
... passing , as they have never been used for electromotors . The same may be said of Hughes's magnets , in which the iron cores , being fixed to the poles of a very power- ful permanent magnet , are always magnetised , and only act when ...
... passing , as they have never been used for electromotors . The same may be said of Hughes's magnets , in which the iron cores , being fixed to the poles of a very power- ful permanent magnet , are always magnetised , and only act when ...
Side 30
... passing through it must necessarily be made and broken by means of a special arrange- ment , called a contact - breaker , or commutator , ac- cording as the effect is simple or accompanied by a reversal of the magnetisation . The ...
... passing through it must necessarily be made and broken by means of a special arrange- ment , called a contact - breaker , or commutator , ac- cording as the effect is simple or accompanied by a reversal of the magnetisation . The ...
Side 33
... passes more freely along the short branch circuit when it is closed by the commutator , than along that of the ... passes through the circuit A EFG D , while if the contact is broken at F it passes through the circuit AEBCGD ; and as one ...
... passes more freely along the short branch circuit when it is closed by the commutator , than along that of the ... passes through the circuit A EFG D , while if the contact is broken at F it passes through the circuit AEBCGD ; and as one ...
Side 35
... passing from one electro - magnet to another , acted on a crank fixed to the driving - shaft . But in these arrange- ments there were also many drawbacks , owing , first , to the too great rapidity of the commutation of the current ...
... passing from one electro - magnet to another , acted on a crank fixed to the driving - shaft . But in these arrange- ments there were also many drawbacks , owing , first , to the too great rapidity of the commutation of the current ...
Side 40
... passing through the wire of the electro - magnet in the opposite direction to the exciting current , at the moment of breaking contact , causes the demagnetisation to take place more promptly and rapidly . D'Arlincourt's arrangement is ...
... passing through the wire of the electro - magnet in the opposite direction to the exciting current , at the moment of breaking contact , causes the demagnetisation to take place more promptly and rapidly . D'Arlincourt's arrangement is ...
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.