Nikola Tesla Patents
with the segments s and s'during the periods when the impulses are at, or near, the maximum of their intensity. Only ordinary electrical skill and knowledge are required to make those adjustments, and a number of devices for effecting synchronous movement being well known, and it being the chief object of my present application to set forth a novel principle, a detailed description of such devices is not corsidered necessary. The above requirements being fulfilled, electrical charges of the same sign will be conveyed to each of the condenser terminals as the cylinder A is rotated, and with each fresh impulse the condenser will be charged to a higher potential. The speed of rotation of the cylinder à being adjustible at will, the energy of any number of separate impulses may thus be accumulated in potential form and discharged through the receiver R upon the brush k coming in contact with one of the Cancelled segments £. It will be, of course, understood that the capacides Sub. Spec. ty of the condenser should be such as to allow the storing of a much greater amount of energy than is required for the ordinary operation of the receiver. Since by this method a relatively great amount of energy, and in a suitable form, may be made available for the operation of a receiver, the latter need not be very sensitive, but, of course, when the impulses are very feeble, as when coming from a great distance, or when it is desired to operate a receiver very rapidly, then any of the wellknown devices, capable of responding to very feehle influences, may be used in this connection. If, instead of the alternating impulses, short impulses of the same direction are conveyed to the plates P and P', the apparatus described may still readily be used, and for this purpose it is merely necessary to shift the brushes band into the position indicated by the dotted lines while main11 305
