action. The signal instruments are associated with these antennae in any desired manner, as at 37.
When applied to submarines, it will be 235seen, therefore, that messages may be sent and received while running partially or entirely submerged.
In accordance with the patent statutes we have described what we now believe to be 240the best embodiment of the invention, but we do not wish to be understood thereby as limiting ourselves or the scope of the invention, as many changes and modifications may be made without departing from the spirit 245of the invention and all such we aim to include in the scope of the appended claims.
For instance throughout the several figures, the signal instruments are shown associated with the antenna or antennæ by 250indirect coupling, but may be associated therewith in any other manner desired. It will be seen also that while the signal instruments are shown diagrammatically above the earth, they will in practice often be actually 255located in a pit below the ground level or entirely underground between the antennæ. This construction is shown in Fig. 10, the pit being indicated at 38. When the antennæ are entirely underground, the effects 260of lightning on the receiving of signals are nearly eliminated, so that only slight clicks are heard instead of loud prolonged hissing.
It will be understood that the system works with either sustained oscillations of 265damped wave trains.
What we claim and desire to secure by Letters Patent of the United States, is —
1. A wireless system for signaling by electromagnetic waves comprising an antenna 270extending in direction substantially parallel to and under the surface of the earth and in intimate contact therewith substantially throughout its length, and additional earth connection, and electromagnetic wave signal 275instruments connected to said antenna and said additional earth connection.
2. A wireless system for signaling by electromagnetic waves comprising signal instruments, a plurality of antennæ associated 280therewith extending outwardly therefrom in direction parallel to the surface of the earth and each in contact with the earth substantially throughout its length, and means for connecting said instruments between two 285or more of said antennæ
3. A wireless system for signaling by electromagnetic waves comprising signal instruments, a plurality of antennæ associated therewith extending outwardly therefrom 290in direction parallel to and below the surface of the earth in contact therewith substantially throughout their length, and means for connecting said antennæ
4. A wireless system for signaling by 295electromagnetic waves comprising signal instruments, an antenna extending outwardly therefrom, and a second antenna extending in the opposite direction, said antennæ being parallel to the surface of the earth in300 contact therewith substantially throughout their length, and means for connecting said instruments between said antennæ
5. A wireless signaling system comprising signal instruments, a plurality of antennæ305 associated therewith each extending outwardsly in direction parallel to the surface of the earth in intimate contact therewith substantially throughout its length, and switching means to selectively connect said signal310 instruments to any two or more of said antennæ.
6. A wireless signaling system comprising signal instruments, a plurality of antennæ in pairs associated therewith, the members315 of each pair extending outwardly in direction parallel to and below and in intimate contact with the surface of the earth, and switching means to selectively connect said signal instruments to said antennæ pairs.320
7. In combination with a boat or vessel, an antenna thereon below the surface of the water extending in direction substantially parallel to the surface of the water, and electromagnetic wave signal instruments 325associated with said antenna.
8. In combination with a boat or vessel, an antenna thereon extending in direction parallel to and under the surface of the water in contact therewith, and signal 330instruments for electromagnetic waves associated with said antenna.
9. In combination with a boat or vessel, a signaling system comprising electromagnetic wave signal instruments, an antenna335 on said boat, and a second antenna extending in the opposite direction, siad antennæ being parallel to and under the surface of the water and in contact therewith substantially throughout their length, and each connected340 with said instruments.
10. In combination with a boat or vessel, a signaling system comprising electromagnetic wave signal instruments, an antenna on said boat or vessel below the surface of the water,345 and a second antenna extending rearwardly from the vessel below the surface of the water, said instruments being connected between said antennæ.
In testimony whereof we have hereunto350 set our hands in presence of two subscribing witnesses.
James Harris Rogers,
Henry H. Lyon.
- Witnesses:
- John Gibson,
- S. William Ford.
