Self closing fire doors for ships, developed by N.V.Bronswerk, are intended for use in "A" class bulkheads and stairway enclosures; hinged and revolving types are available; pneumatic operating mechanism is designed for working pressure of 5 to 7 atm; trapped persons use handle to open door, which again closes automatically.
New dutch automatic fireproof door
Shipbldg Shipg Rec
Shipbuilding and Shipping Record ; 86 , n 7 ; p 211-212
1955
2 pages
Aufsatz (Zeitschrift)
Englisch
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Europäisches Patentamt | 2024
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