Abstract: The present disclosure relates to a method and apparatus for recovering sunken wrecks. More particularly, the present invention concerns a method and apparatus for recovering sunken wrecks wherein a harpoon is launched from a submarine device, implants itself in the wreck and is provided with a rope and means for fastening a pull cable. The end of the rope which is remote from the harpoon is floated to the surface. An apparatus placed at the end of the pull cable is caused to descend along the rope, and at the end of the stroke the apparatus automatically fastens itself to the harpoon. Thereupon, the wreck is pulled up by means of the pull cable.

Abstract: Underwater escape apparatus, intended for use in conjunction with an underwater escape suit provided with means for imparting to the suit an ascent velocity to permit escape from an underwater location to the water surface, comprises, on the one hand, a parachute folded within a container and provided with a pressure responsive member such as a piston, and, on the other hand, a pressure gas cylinder connected to the container by a flexible conduit communicating with the face of the piston opposite the parachute, and equipped with obturating means and means for automatically triggering opening thereof as soon as the immersion depth becomes smaller than a predetermined threshold. Preferably the apparatus includes means for setting the automatic opening device only after the immersion depth has exceeded a predetermined limit beyond which there would be a danger of gaseous embolism taking place during the ascent.