Puts No Limit on Wireless System

Mr. Tesla Asserts His Ability to Send Messages for Thousands of Miles.

DEPENDS UPON VOLTAGE

Inventor Proposes to Connect Balloons at High Altitudes with Station's on the Ground.

CAN TRANSMIT POWER ALSO

HERALD BUREAU,
CORNER FIFTEENTH AND G STREETS, .N. W.

WASHINGTON, D. C., Friday, Nikola Tesla, who has announced that he will be able to work his system of wireless telegraphy on a commercial scale in about eight months, was granted a patent early last May for his "system of transmitting electrical energy" through the higher strata of air without the use of wires.

Mr. Tesla's application sets forth at length the principles of his invention. In securing electricity for his wireless system he uses the electric "oscillator" previously patented by him. He asserts that the electric power produced in this manner has characteristics all its own. When radiated through the air at a pressure of millions of volts it transforms the atmosphere into a conductor of electricity, and if the voltage be high enough the electricity will be carried through the air for thousands of miles.

SENDING THROUGH HIGH STRATA.

A peculiarity of this phenomenon, Mr. Tesla says, is that by increasing the electrical pressure only slightly the distance that the electrical power will travel through the air is increased very greatly. He asserts that by increasing the electric power only fifty per cent the distance the electricity was carried through the air was increased sixfold. The electric energy is conducted most readily through the highly rarefied strata existing, say, at an altitude of five or six miles above the earth.

Mr. Tesla purposes, therefore, to send up a stationary balloon at the point from which he will send his power, and another at the point where it will be received. From each balloon he would hang a "terminal," consisting of a large disk. These disks would be connected by wire with stations on the ground.

In the transmission of power by this sysItem Mr. Tesla would generate his electricity at a high pressure in his "oscillator." and would then pass it through a transforming apparatus, consisting of a primary and a secondary coll. From there the power, at a pressure of millions of volts, would be carried by a wire to the terminal suspended from the balloon.. The electricity, radiating from it, would be conducted through the atmosphere to the second terminal, suspended from a balloon. The distance between these two could be indefinite, says Mr. Tesla. If the voltage be high enough, it would be possible to conduct the power through the air for thousands of miles.

FOR POWER PURPOSES ALSO.

From the receiving terminal, the power, which would be collected through the medium of the suspended disk, would be brought down to the receiving station by means of a wire. There it would be transformed by means of double colls. Telegraphic messages would then be rendered intelligible by ordinary methods, In his claim Mr. Tesla says that not only messages can be sent in this manner, but that it is possible to transmit electricity for power purposes as well.