Flexible conduit for use with basic oxygen furnaces

Claim 1

A flexible fluid transmission conduit assembly particularly adapted to conduct fluid at high pressure and velocities, said flexible conduit comprising an inner fluid impervious flexible transmission line formed of interlocked spirally wound metal, an outer flexible fluid impervious transmission line, means joining said fluid impervious outer and inner lines at the ends thereof to hold each in radially spaced relation to the other at said ends to thereby form a closed chamber between said inner and outer lines, said means removably joining said inner and outer lines including a clamping ring having a frustoconical clamping surface thereon, a second clamping ring having a complementary shaped clamping surface thereon for positioning over said surface and means to draw said frustoconical surfaces into fluidtight engagement with opposite sides of said inner transmission line, said outer line being formed of continuous corrugated metal having a braided-type covering over the outer circumference to protect the same, and means to maintain said lines spaced intermediate said ends.