Retractable or storable thruster using a trapezodidal deformably

Details Retractable or storable thruster using a trapezodidal deformably Retractable or storable thruster using a trapezodidal deformably

1991-03-29

1992-10-06

Basinger, Sherman

Ships

Steering mechanism

Fluid pressure

440 61, 440 63, B63H 2546

Patent

active

051522403

ABSTRACT:
A retractable and storable thruster for a vessel, using a trapezoidal deformably rotatable device producing rectilinear movement inside a well in the vessel's hull. A casing (1) is sealingly fixed on joint planes in a well (2) which is an integral part of the structure (3) of the vessel. Within this casing (1) are folded two arms (4) and (5) pivoting asymmetrically, a motor (10), a stirrup (17) secured to the motor, and a propulsion screw assembly. The two arms (4) and (5), on the one hand, are pivoted at (6) and (7) on the casing (1) and, on the other hand, at (8) and (9) on the stirrup (17) secured to the motor (10). Under manual or mechanical action (X) or (Y) exerted on a lever (12) secured to the arm (4) by a shaft (6), this arm (4) in compound rotation with the triangulation arm (5) causes the deformation of the trapezium obtaining a rectilinear movement in a direction parallel to axis (A Z) of the motor (10) at its axis (11).

REFERENCES:
patent: 2949791 (1960-08-01), Cattaneo et al.
patent: 3127865 (1964-04-01), Pleuger
patent: 3765368 (1973-10-01), Asbeck
patent: 4294186 (1981-10-01), Wardell
"Max Power Les Propulseurs", model R300, Max Power.
"HPS Retractable Bow Thruster System", Hydra-Power Systems, Inc.
"Vosper Thornycroft Marine Thrusters", Vosper Thornycroft (UK) Ltd, Hydraulic Power.
"Marine Thrusters", Richfield Marine Thrusters Ltd.
"Max Power Retract R300", Max Power, B.P. 32 France 83600.

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