Published Resources Details Letters Patent

Reynolds, G. H.
United States Patent Office, 30 August 1881.

Specification forming part of Letters Patent No. 246,415, Application filed August 2.

Accession No.1315


"A torpedo-vessel or other submarine vessel of cylindrical form or approximately cylindrical form having a screw-propeller applied in the usual way is very liable to roll on its axis in the water, owing to the action of the screw-propeller, and when rudders inclined in an upward and downward direction are employed on such a vessel for directing its course up or down in the water such rolling or turning of the vessel, by producing a lateral inclination of such rudders makes the liable to divert the vessel from its proper course; to which end the invention consists in the combination, in a torpedo-vessel or other submarine of side rudders for directing the vessel up or down in the water and two screw-propellers of opposite pitch arranged side by side rotating in opposite directions and intermeshing, the axis of said rudders and screw-propellers being all in the same transverse plane."