This page has been validated.
4
771,917
may be produced with corresponding variations in the radiation from the lamp, substantially as described.
11. In a transmitting apparatus for wireless 5signaling systems, a primary circuit, a periodic interrupter and an electric lamp therein, a secondary circuit having discharge-terminals adapted to produce electromagnetic waves, an induction-coil having its windings in the primary and secondary circuits respectively, and10 means to actuate said circuit-interrupter by sonorous vibrations, substantially as described.
In testimony whereof I have hereunto subscribed my name.
Roberto Landell de Moura.
- Witnesses:
- Daniel B. Tamagno,
- Eugene M. Berard.
