| 摘要 |
The equipment is provided with a number of moveable components (12) e.g. in the form of iron bars in order to improve the contact between the equipment and its load, These bars are arranged in a body (13), and they slide into corresp. holes (14) in the actual lifting body their dimensions being such that there is the least possible clearance between them and the walls of the holes. - An electrical current coil is fitted in the lifting body and surr-ounds the iron bars and a plate-shaped component (16) fixes the bars during lifting in the required position in relation to the lifting body, for which it has appropiate apertures (17). |
