Nikola Tesla Patents
6 Sult. Spee брес . lines while maintaining 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 T of the condenser and to connect brush a with brush a', The apparatus thus modified would appear as shown in Fig. 2. Operated in this manner, and assuming the speed of rotation 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 segments s and s' with brushes b b' in the manner indicated. 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 variations or intermittances, since the storage device will be charged and -12This page retyped from microfilm for better readability - Ed.] 341
