| 摘要 |
<p>A coupling device for establishing an adjustment electrically conductive connection between two members of an electrical installation comprises a ball member (17) which is axially adjustable on a coupling rod (19) and is formed with a radial slot (20) to enable it to be clamped onto the rod by the application of a clamping force exerted on the ball member (17) by means of clamping elements (21,22) which afford seatings (25,26) engaging the part-spherical surface of the ball member in such a manner as to permit universal adjustment, bolts (28) being provided to draw the plates towards one another so as on the one hand to apply clamping pressure to the ball member (17) thereby to clamp the latter onto the rod at an adjustable axial position and on the other hand to clamp themselves onto the ball member at a universally adjustable position in one and the same operation.</p> |
