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Priority to PT7962084ApriorityCriticalpatent/PT79620B/en
Publication of PT79620ApublicationCriticalpatent/PT79620A/en
Publication of PT79620BpublicationCriticalpatent/PT79620B/en
The cover is in the form of a tunnel made up of a number of modular archways coupled end to end. Each archway comprises two half arches joined at the ridge by a hinge which can be locked by the insertion of pins. Each half arch has a metal frame sandwiched between inner and outer sheets of aluminium or galvanised steel. Thermal insulating material pref. expanded polyurethane, is packed between the sheets.
PT7962084A1984-12-061984-12-06Self supporting cover for prefabricated buildings
PT79620B
(en)