Joint for under-water structures

Claim 1

A joint for underwater structures which comprises a retaining plate having a projected line extending along the periphery of the end surface of a first structure and is fixed onto said end surface of said structure, a belt form gasket, said projecting line contacting the middle portion of the base end surface of said belt form gasket which is made of elastic material, such as rubber, and having gasket attaching flanges on both sides of the base end portion of said gasket, said gasket having at an oppositely disposed base end portion a central projected line and adjacent projected lines on either side adapted for pressing engagement with a second underwater structure end surface, wherein a bolt passes through a belt form pressing member contacting against the surface of each gasket attaching flange to screw up said bolt into said supporting member to fix said belt form gasket attaching flanges onto the retaining plate and wherein the second under water structure has affixed to the end portion a pressing plate, adapted for pressing engagement with said central and adjacent projection lines on said gasket.