| 摘要 |
An insertion nozzle which can join an installation conduit with an installation box can compensate for skew placement of the conduit mouth in relation to the installation box. This is achieved with a nozzle which can swivel in an arbitrary direction in relation to one part of the nozzle, which is mounted on the box. A ring 6 of reduced wall thickness, which is arranged between the pieces co-operating with the box 1, 2 and a domed end 5 at the cylindrical part 3 of the nozzle, can swivel in any direction, since the ring 6 acts as a sheet hinge. <IMAGE>
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