NO136549B

• Main Authors: NONNET J, CHARLES C, LEPETIT M, FOLL F LE
• Format: Patent
• Language: English
• Published: 13.06.1977
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; EMBANKMENTS; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PERFORMING OPERATIONS; PHYSICS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; SOIL SHIFTING; SOUND-PRODUCING DEVICES; TRANSPORTING; UNDERGROUND OR UNDERWATER STRUCTURES

1377468 Hooks CENTRE NATIONAL POUR L'EXPLOITATION DES OCEANS and LE NICKEL 17 July 1973 [19 July 1972] 34079/73 Heading E2A A device for dropping ballast to allow under-water exploration apparatus to float to the surface for recovery after it has touched the bottom, comprises a pair of overlapping arms 1 pivoted at 3 to allow one (shown ghosted) to tilt to a releasing position (ghosted) when a latch 7 is released by the dropping of a weighted arm 4, 6 which is pivoted at 5, when the device rests on the bottom thus taking the load off float-cable 18. A plug of soluble material, such as barley sugar, is inserted into aligned holes 16 of the arms to prevent release for a certain time. In the form shown in Fig. 1, the arms have projections 9, 11 and 10, 12 defining closable eyes 13, 14 which may release cables in lateral directions F. In the form shown in Fig. 3, jaws 2 are opened by a spring 23.