Fire precaution smoke flap electric release mechanism - has current independently supplied by hand driven dynamo machine
ATA570876A
Device for remote controlling wings of smoke and heat exhaust systems
DE2543979A1
Ventilating and fire retarding skylight - has angled wind deflection each side, between frame and cover, sealing openings
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Mechanism for remote manoeuvring of roof vents - for opening in case of fire and piston cylinder powered by electro-ignited explosive charge
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Fire alarm system with smoke detectors - has parallel contacts in closed loop and series failure contacts operating when alarm fails
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Fire alarm system with quiescent state monitor - accommodates many smoke detectors and checks ccts constantly
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Natural draught roof ventilator for habitable rooms - has wind deflection plates attached to fixing frame
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Remote actuator for fume ventilator covers - has actuating cylinder for releasing the spring for opening the cover
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Sky light opening system with pressure medium cylinder - has piston rod connected to locking bolt arrangement
DE2260913A1
DEVICE FOR VENTILATING BUILDING SPACES
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DEVICE FOR OPENING AND CLOSING VENTILATION DEVICES, SUCH AS SMOKE AND FIRE VENTILATION FLAPS, DOME LIGHTS OD. DGL
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Safety system for opening ventilation devices
DE1920373A1
Remote control device
DE1920374A1
Pneumatic piston-cylinder unit
DE1915971A1
Device for opening ventilation flaps or slides
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Safety device for the automatic opening of ventilation devices
DE1434982A1
Hydraulically remote actuating device for exposure devices, such as domes or the like., Or for ventilation devices, such as wings, ventilation flaps, blinds or the like.
DE1272164B
Hydraulically remote actuating device for opening and closing venting or exposure devices, e.g. B. Skylights
