| 摘要 |
<p>The joint has a body 2 and a pair of caps 3, each cap having a curved central part the inner surface of which is shaped such as to engage a respective one of a pair of cylindrical tubes 6 to be connected by at least a quarter of its circumference, and having two end portions, one of which has a hammer- head 12 adapted to be particulately inserted in a corresponding hole of the body to allow rotation of the cap by approximately 90 DEG with respect to the body, and the other of which has an open slot to receive the shank of a locking bolt 7, said other end portion having a pair of wings bent at right angles, the edges of said wings being concave to engage the periphery of its respective tube. <IMAGE></p> |
