Nikola Tesla Patents
306 taining the same conditions in regard to synchronism as before, so that the succeeding impulses will be permitted to pass into the condenser, but prevented from returning to the ground or transmitting medium during the intervals between them, owing to the interruption during such intervals of the connections leading from the condenser terminals to the plates. Another way of using the apparatus with impulses of the same direction is to take off one pair of brushes, as b,disconnect the plate P from brush a and join it directly to the terminal of the condenser and to connect brush a with brush vier G. the apparatus there modified would appear as shouse in thing 2. a' Operated in this manner, and assuming the speed of rotation 1 of cylinder A to be the same, the apparatus will now be evidently adapted for a number of impulses per unit of time twice as great as in the preceding case. In all cases it is evidently important to adjust the duration of contact of segmerits s and s' with brushes b b', in the manner indicated. Cancelled zu Sub. Spec. When the method and apparatus I have described are used in connection with the transmission of signals or intelligence, it will, of course, be understood that the transmitter is operated in such a way as to produce disturbances or effects which are varied or intermitted in some arbitrary manner, for example, to produce longer and shorter successions of impulses corresponding to the dashes and dots of the Morse alphabet, and the receiving device will respond to, and indicate these variá- tions or intermittences, since the storage device ill be charged and discharged a number of times corresponding to the duration of the successions of impulses received. Obviously the special appliances used in carrying out my invention may be varied in many ways without departing from the spirit of the same. 12
