Sealed enclosure having a shaft exit.

摘要

A sealed enclosure for isolation from a surrounding environment comprises at least one member (5) driven by a shaft (6) passing through a shaft passage opening (8) in one wall of the enclosure, this opening (8) having packing (9) to provide a seal between the shaft and the surrounding wall. This wall has a section of wall (14) which is leaktight and movable. <IMAGE>