| 摘要 |
The assembling means, in view of the subsequent separation of the two enclosures of an electrical cutout apparatus, comprises an intermediate, slidable sealing air lock with means operable to simultaneously seal one enclosure on one side thereof and the other enclosure on the other side thereof, said air lock comprising two separable portions which when separated respectively become fast with one and the other enclosures, the device control rod going through both enclosures having a part within said air lock provided with means for uncoupling the rod into two sections which are fast with respective portions of said enclosures, said air lock consisting of a cylindrical space established between the end of the first section of said rod and the inside of a hollow piston (15). The lower end of the first enclosure is provided with a first assembly plate for mounting on a second assembly plate on the upper end of the second enclosure, said first plate comprising a cylindrical sleeve against the inside of which is arranged a slide block (19) attached to the second plate, the head (7) of the piston (15) being slidably arranged and fitted with a seal within said cylindrical sleeve. To simplify assembly and disassembly, an internally threaded sleeve (111) is provided, which screws onto a thread on a portion of the outside surface of the slide block (19), together with means for making slidably fast said sleeve (111) with said piston (15).
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