System for turning on e.g. gas supply in street comprises cap, into which key-rod is inserted which has ball on its end fitting into centering disk and allowing telescopic movement of rod and mounting sleeve

摘要

The system for turning on a gas or water supply in the street comprises a cap (3), into which a key-rod (1) is inserted. This has a ball (3) on its lower end which fits into a centering disk (4) and allows telescopic movement of the rod and a mounting sleeve (6) around the cap and simultaneous radial movement of the rod.