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(11) | EP 1 983 118 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Transportable and extensible cabin with extraction system |
| (57) According to the invention we are going to construct a movable extensible tunnel
like extraction system constituted by an extraction wall joint to a sliding sectors
covering, able to contain the overall size when the sectors are superimposed and to
have efficiency characteristics analogue to traditional extraction walls equipped
by a not movable covering. The invention comprises also the possibility to move the
system as a whole in a very simple and efficacious way when the covering is closed,
due to special slits for the lifting fork of an elevator or similar.
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