ROTATIONAL SHELL RETENTION DEVICE AND ITS MANUFACTURING METHOD Russian patent published in 2017 - IPC F16L33/01 

FIELD: construction.

SUBSTANCE: rotational shell retention device comprises an end flange and a cap flange, with sandwiched layers of rubber and layers of reinforcing material wrapped around the bead wire. Reinforcing material layers are joined by the rubber layers into a single rubber-cord composite. The end flange and the cap flange are connected by bolting. The bead ring in the upper part is provided by a comb of projections equally spaced along the bead ring diameter and abutting against the end flange.

EFFECT: increased reliability and service life of rotational shells, as well as reduced force required to provide rotational shell strength.

3 cl, 4 dwg