| 摘要 |
PCT No. PCT/GB87/00214 Sec. 371 Date Feb. 1, 1988 Sec. 102(e) Date Feb. 1, 1988 PCT Filed Mar. 30, 1987 PCT Pub. No. WO87/05986 PCT Pub. Date Oct. 8, 1987.A spring-containing device comprises a housing including a removable end plate (2). A plurality of screw-threaded tie rods (7) have nuts (28) holding the end plate (2) in assembly in the housing. A safety plate (14) is disposed within the housing at a fixed spacing from the end plate (2) but short of a movable spring-retaining plate (8) at its closes approach to the end plate (2). The safety plate (14) is fast on a shaft (15) rotatable in the end plate (2) and adapted (at 16) to be turned from outside. The safety plate (14) has keyhole-shaped openings through which the respective tie rods (7) extend and the tie rod (7) have safety collars (18) which can only pass through the keyhole-shaped openings when the safety plate (14) is in a certain angular position.
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