| 摘要 |
<p>In a window to be installed in an inclined roof and having a top-hinged window sash (7) the side members (5) of the main frame do not only include ordinary, outwards facing abutment faces (6) but also inwards facing abutments (10, 11) against which the lateral edges of the sash may be retained after opening for airing. The top hinges (12) may be releasable with a view to allow for a downwards displacement of the sash to a position (7'') from which the sash may be further openable by swinging about an axis at its one side.</p> |
