Published Resources Details Letters Patent
- Valve attachment for torpedoes
- United States Patent Office, 2327
Specification forming part of Letters Patent No. 820,888. Application filed May 9 1904.
"This invention relates to improvements in explosive projectiles, and particularly to torpedoes; and the object of the invention is to provide a suitable means for controlling the depth of the torpedo and the sinking of same at the proper time, together with the means for causing the explosion of the projectile after a suitable interval."