Ships – Torpedoes
Patent
1950-10-24
1976-03-16
Feinberg, S.
Ships
Torpedoes
89 41D, 89 41E, 89 41AA, 114240R, 340 3R, F42B 1900
Patent
active
039438708
ABSTRACT:
1. A system of the character disclosed for protecting a vessel against todo attack comprising a gimbals mechanism including an outer ring pivotally secured to said vessel and an inner ring pivotally secured to the outer ring with the axis of oscillation of the inner ring arranged in a horizontal plane, a pendulum device secured to said inner ring and having the axis of oscillation thereof arranged in registry with a vertical plane through the keel of the vessel when the vessel is on an even keel, a plurality of rocket tubes, means for securing said rocket tubes to said pendulum device in spaced relation with respect to each other and with the longitudinal axes of the tubes arranged at the same predetermined elevation when the vessel is on an even keel whereby rockets projected from said tubes will have substantially the same predetermined fixed range as the vessel rolls and pitches, said rocket tubes also having a divergent angular setting with respect to each other such that rockets projected therefrom will strike the surface of the water to form an overlapping explosive pattern at said predetermined fixed range of sufficient explosive force to destroy an oncoming torpedo within said pattern when the rockets are detonated, a directional sound emitting and echo detecting means arranged on the vessel with the field of sound emission and detection thereof projecting outwardly from the side of the vessel, said emitting and detecting means emitting sound signals into the water in the path of travel of said oncoming torpedo and thereafter receiving the reflected signals therefrom, heterodyne means for beating the reflected sound signals with the emitted sound signals to derive differential frequency signals representative of the speed of the oncoming torpedo, filter means responsive to the output of said heterodyne means for passing only differential frequency signals representative of a predetermined range of speeds, time measuring circuit means operatively connected to receive said emitted signals and the differential frequency signals passed by said filter means for measuring the elapsed time between the emitted signals and their respective differential frequency signals passed by said filter means, said measured elapsed time corresponding to the distance of the torpedo from the vessel, and electroresponsive means operatively controlled by said time measuring circuit means to ignite the propellant charge of rockets disposed within the tubes when the torpedo moves into said pattern.
REFERENCES:
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patent: 2724817 (1955-11-01), Hisserich
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patent: 2821694 (1958-01-01), Sebring
Feinberg S.
The United States of America as represented by the Secretary of
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