Transportable hollow concrete unit serving as shelter - has ceiling casting apertures opening into mould formed by wall pair

摘要

Shelter unit partitioning wall has a door, to separate off on entry air-lock and another pair of walls separate off a filter chamber with emergency exit. The walls are incorporated in a unit built like a prefabricated garage with thin light concrete walls and is used as personnel shelter. The parallel walls in the pair form a mould for subsequently cast concrete. Ceiling and/or sidewall tops contain mould openings, opening out between these. The unit contains all necessary equipment, such as benches, couches, filters, air intake and outlet, the whole providing a pressure-resistant concrete shell which is ready-made and transportable.