| 摘要 |
1484361 Vibration dampers SIEMENS AG 15 Aug 1974 [21 Sept 1973 2 April 1974] 36062/74 Heading F2S [Also in Division E2] Electrical switchgear, e.g. a H.V. circuit breaker is protected from horizontal oscillations by a shock absorber which has a first part 10 for anchorage to a foundation; a second part 11 movable substantially horizontally relative to the first part 10 and coupled to the switchgear, the first and second parts 10, 11, being interconnected by a pendulum link 12 articulated at or near opposite ends; and vibration-damping friction means between the first and second parts 10, 11. The friction damping means may be in the form of spring- loaded friction surfaces 62, 63, Fig. 5 (not shown), or 56, 57 and 62, 63, Fig. 7 (not shown), forming part of universal joints 45, 46, Fig. 4 (not shown). Reference is made to co-pending Divisional Application Specification 1,484,362.
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