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The horizontal trap door, which is opened manually and closes automatically, comprises a panel (1) articulated about a horizontal axis (4) and capable of opening above the horizontal plane containing this axis (4); it comprises a hydraulic device (7) forming a brake on the shutting of the trap door,...

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Bibliographische Detailangaben
1. Verfasser:	COUTIER, CHARLES, GARCHE, F-57100 THIONVILLE, FR
Format:	Patent
Sprache:	ger
Schlagworte:	BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS ORWINDOWS CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES KEYS LADDERS LOCKS SAFES WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Beschreibung
Zusammenfassung:	The horizontal trap door, which is opened manually and closes automatically, comprises a panel (1) articulated about a horizontal axis (4) and capable of opening above the horizontal plane containing this axis (4); it comprises a hydraulic device (7) forming a brake on the shutting of the trap door, and a stop element (18, 19) limiting the angle of opening of the trap door to a value of less than 90 DEG so that the panel (1) is permanently subjected, under the effect of gravity, to a closing moment.