Nikola Tesla - Free-Energy Devices

POLYPHASK CURRENTS. 85example, established by a current impulse in the coils thereon,precedes the magnetic effect set up in the armature by the inducedcurrent in coils F.Consequently the mutual attractionbetween the armature and field-poles is considerably reduced.The same conditions will be found to exist if, instead of assumingthe poles B or c as acting independently, we regard the ideal resultantof both acting together, which is the real condition. Toremedy this, the motor field is constructed with secondary polesB' c', which are situated between the others. These pole-piecesare wound with coils D' E', the former in derivation to the coilsD, the latter to coils E. The main or primary coils D and E arewound for a different self-induction from that of the coils*D' andE', the relations beingdiffer, for example, by a quarter-phase,so fixed that if the currents in D and Ethe currents in eachsecondary coil, as D' E', will differ from those in its appropriateprimary D or E by, say, forty-five degrees, or one-eighth of aperiod.Now, assuming that an impulse or alternation in circuit orbranch E is just beginning, while in the branch u it is just fallingfrom maximum, the conditions are those of a quarter-phasedifference. The ideal resultant of the attractive forces of the twosets of poles B c therefore may be considered as progressing frompoles B toand that in D is falling to zero or minimum. The polarity set upin the armature, however, lags behind the manifestations of fieldpoles c, while the impulse in E is rising to maximum,magnetism, and hence the maximum points of attraction in armatureand field, instead of coinciding, are angularly displaced.This effect is counteracted by the supplemental poles B' c'. Themagnetic phases of these poles succeed those of poles B c by thesame, or nearly the same, period of time as elapses between theeffect of the poles B c and the corresponding induced effect in thearmature ;hence the magnetic conditions of poles B' c' and ofthe armature more nearly coincide and a better result is obtained.As poles B' c' act in conjunction with the poles in the armatureestablished by poles B c, so in turn poles c B act similarly withthe poles set up by B' c', respectively. Under such conditionsthe retardation of the magnetic effect of the armature and thatof the secondary poles will bring the maximum of the two morenearly into coincidence and a correspondingly stronger torque ormagnetic attraction secured.In such a disposition as is shown in fiS it Fig. will be observed