. The telephone system of the British post office. A practical handbook . ough the conductors to this one, where a very largenumber pass through the conductors, have been induced as thenumber of lines through the conductors have been gradually increased Magneto Generator. 47 from none to the maximum. This represents a quarter of a revolution,and at this point the falls to zero. On moving forward till thefirst position is reached there are again no lines through the lines, on threading out of the circuit, produce an in theopposite direction to that produced
. The telephone system of the British post office. A practical handbook . ough the conductors to this one, where a very largenumber pass through the conductors, have been induced as thenumber of lines through the conductors have been gradually increased Magneto Generator. 47 from none to the maximum. This represents a quarter of a revolution,and at this point the falls to zero. On moving forward till thefirst position is reached there are again no lines through the lines, on threading out of the circuit, produce an in theopposite direction to that produced when threading in. On moving for-ward to the second position, lines have again been threaded through, butin the opposite direction, as the faces of the armature have been reversed ;this produces an in the same direction as the decaying Unes. Atthis point the again falls to zero, and on turning to the firstposition is again at its maximum value, but in the opposite direction, fall-ing to zero as the second position is reached. Hence it will be seen that in. Figure 37. one revolution of the armature fresh currents in opposite directions areinduced. A very small movement of the armature from the first position causesa much larger alteration in the number of lines passing through the arma-ture than an equal movement from the second position. A considerationof these facts will show us that the largest are produced whenthe movement is from the first position, and smallest when from thesecond. The number of lines through the armature is continually chang-ing as it revolves; consequently are continuously induced. 48 Short Circuiting Arrangements. These rise to a maximum at the first position, fall to zero at thesecond, then rise to a maximum in the opposite direction, and again fall tozero as the second position is reached; hencs we see that the current isreversed in direction twice per revolution. The external appearanceof a combined magneto gener
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecttelepho, bookyear1901
