Page:US patent 851336.pdf/4

 means, and means whereby electrical oscillation maybe produced in said transmitter.

5. In wireless telegraph apparatus, means for tuning a transmitter to a distant sending station, said means comprising the combination of the transmitter, means for tuning the same, a sparking device for the transmitter, a detector responsive to current intensities, means for connecting and disconnecting the detector with the transmitter and its tuning means, and in parallel with the sparking device.

6. In wireless telegraph apparatus, means for tuning a transmitter to a distant sending station, said means comprising the combination of the transmitter, tuning devices for the transmitter, a detector responsive to current intensities, means for co-operatively connecting the detector and said tuning means with the transmitter for tuning the same and for disconnecting the detector after the transmitter is tuned.

7. In wireless telegraph apparatus, means for tuning a transmitter to a distant sending station, said means comprising the transmitter, a spark device and tuning means for the transmitter, a detector responsive to current intensities, means for connecting and disconnecting the detector with the transmitter and tuning means, and in parallel to the spark gap.

8. In wireless telegraph apparatus, means for tuning a transmitter to a distant sending station, said means comprising the combination of a transmitter, a spark device in series therein, tuning means in the transmitter, a detector responsive to current intensities, means for connecting and disconnecting the detector with the transmitter and tuning means, and means for shunting the spark device when the detector is connected.

In witness whereof, I hereunto subscribe my name this ninth day of June A. D. 1905.

GEORG VON ARCO.


 * Witnesses: