FIELD: construction. SUBSTANCE: window has sash 9 turning on upper hinge. Sash is connected with sliding shoe 10 moving over guide 11 of frame side member. Intermediate member 15 has cross pin 20 engaging socket 22 on shoe upper side. Intermediate member 15 is loaded with spring 13 or moves under action of spring in direction of guide lower end. Spacer 16 serves to hold intermediate member in readiness state for engagement. After window installation in roof, respective socket 22 is selected for its engagement by cross pin depending on roof sloping, i.e., socket obtained as a result of application of required opening force to sash which opens until cross pin 20 engages selected socket. Then, sash is slightly turned in direction of closing to free and remove spacer. Spring 13 may be installed in window in prestressed state by manufacturer, and spring is prevented from its acting with opening force on sash during window transportation or installation. EFFECT: higher efficiency. 3 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LOUVER | 1996 |
|
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| LEAD-FREE PLATE-LIKE WATER-PROOFING MATERIAL FOR ROOFS | 1992 |
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RU2090715C1 |
