Also attached is a cartoon depiction of another TF joint concept. The constant tension flag section would be divided into three parts, one flexible OOP, one stiff, and one flexible IP. It would be clamped to a box with G10 liners and "ears" which would extend radially inward to provide support to the OOP flex. After installation of all flags and boxes, a ring would be attached over them, engaging them with teeth and bolts. Then the umbrella lid would be installed and bolted to the box ring and a G10 ring bolted to the ends of the inner leg conductors for torsional loading. For axial thermal expansion the umbrella lid would have teeth on its outer edge which would engage with the umbrella itself.