Nikola Tesla Patents
JULI 31311 UJ (11:1 C Spent B Jane 8-96. discharging. The controller C is designed to be rotated by any proper de vice, such for example, as an electromagnetic mo tor, as shown in figure 2, receiving current either figue from the main source or elsewhere. Around the controller C or in general, in parallel therewith, is a condenser H, and in series with the latter the primary K of a transformer, the secondary L of which constitutes the source of the currents of high frequen cy which may be applied to many useful purposes, as for electric illumination, the operation of Crooks tubes or the production of high vacua. A more convenient and simplified arrangement of the apparatus is shown in figm 2. In this case the small motor G. which drives the controller has its field coils in derivation to the main circuit, and the controller C and condenser H are in parallel in the field circuit between the two coils. In such case the field coils M take the place of the choking coils B. In this arrangement, and in fact generally, it is preferable to use two candensers or a condenser in two parts, and to arrange the primary coil of the transformer between them. The interruptions of the field circuit of the motor should be so rapid as to permit only a par tial demagnetization of the cores; these latter however, should in this specific arrangement be laminated. The apparatus, as will now be seen, comprises as essential el ments, choking coils, a circuit can traller, means for rotating the same, a condenser and a transform-4101
