0035859-A2 is referenced by 39 patents and cites 4 patents.

Ship maneuvering gear for a ship having two 360 DEG -turning propellers disposed symmetrically relative to the ship's central bow-stern line, has a rotatable hand lever (HL) and an arithmetic circuit (MC) which responds to the rotation of the hand lever. When the hand lever (HL) is rotated by an angle relative to the ship's bow-stern direction, the output from the arithmetic circuit (MC) controls the orientations of the two propellers so that the composite propulsive power of the two propellers causes the ship to move in a lateral or obliquely lateral direction without causing any turn of the ship, which direction is in agreement with said angle of rotation of the hand lever.

Title
Ship maneuvering gear.
Application Number
EP19810300872 19810303
Publication Number
0035859 (A2)
Application Date
March 3, 1981
Publication Date
September 16, 1981
Inventor
Ishida Minoru
JP
Assignee
Ishikawajima Ship & Chem
JP
IPC
B63H 25/08
B63H 25/42
B63H 25/06
B63H 25/00
B63H 21/00
B63H 25/42
B63H 25/08
B63H 21/22
View Original Source Download PDF