| 摘要 |
<p>A technique is disclosed herein for coupling the joint (32) defined by adjacent ends of a pair of relatively rigid straight pipes (12) forming sections on an overall string (16) of pipes which in operation is intended to bend to a limited extent at the joint. This technique utilizes first and second end segments (34 and 36) of the pipes, which end segments (34 and 36) respectively include the adjacent ends to be joined and confronting annular faces, actually shoulders, (42 and 58) disposed in planes normal to the axes of the pipes. These pipe end segments are joined by a third member, specifically an external nut (38) such that the confronting faces (42 and 58) of the two pipe end segments engage one another and such that when the joint (32) is subjected to limited bending substantially all of the bending forces resulting therefrom are concentrated at the joint (32) in directions parallel with the axes of the pipes, whereby to place the pipe end segments (34 and 36) and the joining member (38) in tension only.</p> |
