Published Resources Details Letters Patent
- Automatic diving mechanism for submarine boats
- United States Patent Office, 773
Specification forming part of Letters Patent No. 693,272. Application filed August 13 1901.
"…that in the class of submarine boats, including also the class of automatically-operated boats known as "torpedoes" an engine is employed to actuate the diving rudders, and the valve for this diving engine is automatically operated and controlled, in order to cause the boat to dive to a predetermined depth…"