Nikola Tesla - Free-Energy Devices

CHAPTER V.UTILIZINGFAMILIAR TYPES OF GENERATOR OF THE CONTINUOUSCURRENT TYPE.THE preceding descriptions have assumed the use of alternatingcurrent generators in which, in order to produce the progressivemovement of the magnetic poles, or of the resultant attraction ofindependent field magnets, the current generating coils are independentor separate. The ordinary forms of continuous currentdynamos may, however, be employed for the same work, inaccordance with a method of adaptation devised by Mr. Tesla.As will be seen, the modification involves but slight changes intheir construction, and presents other elements of economy.On the shaft of a given generator, either in place of or in additionto the regular commutator, are secured asmany pairs ofinsulated collecting-rings as there are circuits to be operated.Now, it will be understood that in the operation of any dynamoelectric generator the currents in the coils in their movementthrough the field of force undergo different phases that is tosay, at different positions of the coils the currents have certaindirections and certain strengths and that in the Tesla motors ortransformers it is necessary that the currents in the energizingcoils should undergo a certain order of variations in strength anddirection. Hence, the further step viz., the connection betweenthe induced or generating coils of the machine and the contactringsfrom which the currents are to be taken off will be determinedsolely by what order of variations of strength and directionin the currents is desired for producing a given result in theelectrical translating device. This may be accomplished invarious ways but in the;drawings we give typical instances onlyof the best and most practicable ways of applying the inventionto three of the leading types of machines in widespread use, inorder to illustrate the principle.Fig. 25 is a diagram illustrative of the mode of applying theinvention to the well-known type of " closed " or continuous cir-