Published Resources Details Letters Patent

Author
Hedlund, P. J.
Title
Torpedo
Imprint
United States Patent Office, 3265
Description

Specification forming part of Letters Patent No. 906,133. Application filed December 21 1907.

Accession No.1433

Abstract

"This invention relates to torpedoes driven by elastic fluid turbines, and particularly to torpedoes employing turbines having two rotating driving members, for example a wheel and casing, each driving a propeller shaft…"