Abstract: A revolving door assembly includes a pair of part-cylindrical wall portions partly surrounding the rotational path of a revolving door and partly defining a passage. Pairs of part-cylindrical wall panels are provided in association with the part-cylindrical wall portions, such wall panels being movable along paths concentric with the rotational path of the revolving door and being adapted to close and open the passage substantially in syncronism with the continuous rotation of the revolving door. Thereby passage will remain checked during such rotation, alternatingly by the revolving door alone and by the door in cooperation with the wall panels of each pair, whereby a draft-free passage will be maintained.

Abstract: The present invention concerns a revolving door device having arcuate screens arranged on diametrically opposite sides of the passage space constituting part of the revolving door closely adapted to the fixed outer walls of the device. Said screens being connected with each other through a partition wall divided up in three sections having the central section openable. The respective outer sections is aligned along a chord of the circular space so that when said screens are in a position for access to the respective passage spaces, a free through path may be obtained from entrance opening to the outer through the openable central section in case of emergency.