Published Resources Details Letters Patent

Helfrich, G. P.
United States Patent Office, 5435

Specification forming part of Letters Patent No. 1,117,843. Application filed November 15 1913.

Accession No.1464


"This invention relates to improvements in torpedoes, and has for its object to provide an improved structure for steering a torpedo, and for providing a means for indicating the path travelled by the torpedo so as to allow for current steering. Another object of the invention is to provide an improved structure, which will send a spray of water to an appreciable height above the surface of the water in which the torpedo is arranged, and also to project a light upwardly from the surface. A still further object of the invention is to provide a graduated solenoid structure for controlling the supply of current to the various parts of the torpedo so that by proper energization of the solenoid any of the parts may be properly actuated for causing the torpedo to act in the desired manner, as for instance moving to the right or left."