| 摘要 |
1484362 Vibration dampers SIEMENS AG 15 Aug 1974 [21 Sept 1973 2 April 1974] 07504/77 Divided out of 1484361 Heading F2S A shock absorber for damping horizontal oscillations between a foundation and an apparatus, comprises a first part for anchorage to the foundation and in the form of an inverted U-shaped support 10; a second part 11 movable horizontally relative to the first part between the arms 17, 18 of the U-shaped support 10; a pendulum link 12 connecting the two parts 10, 11 by articulations, e.g. universal joints 15, 16, at or near its ends; and vibration damping friction means, e.g. a friction surface 25 pressed by a spring 26 on to a fixed surface 24, between the two parts 10, 11. The friction means may alternatively comprise spring-loaded friction surfaces within the universal joints as in Fig. 4 (not shown); details of embodiments are illustrated in Figs. 5, 6 and 7 (not shown). Reference is made to the parent Specification which has the same subject matter.
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