| 摘要 |
<p>A technique is disclosed herein for coupling the joint defined by adjacent ends of a pair of relatively rigid straight pipes forming sections of an overall string of pipes which in operation is intended to bend to a limited extent at the joint. This technique utilizes first and second end segments of the pipes, which end segments respectively include the adjacent ends to be joined and confronting annular faces, actually shoulders, disposed in planes normal to the axes of the pipes. These pipe end segments are joined by a third member, specifically an external nut, such that the confronting faces of the two pipe end segments engage one another and such that when the joint is subjected to limited bending substantially all of the bending forces resulting therefrom are concentrated at the joint in directions parallel with the axes of the pipes, whereby to place the pipe end segments and the joining member in tension only.</p> |
