Abstract: A heat resistant cabinet having at least one protected compartment for storing temperature-sensitive articles. The compartment is surrounded by a heat absorbing layer and may also be surrounded by a heat barrier layer. The heat absorbing layer is a solid mixture of a heat absorbing material which becomes liquid under the influence of excessive heat and also contains an additional material which binds said liquid heat absorbing material to form a doughy or solid mass. The additional material is a water-absorbing inorganic material such as plaster of Paris, caustic lime, or cement. The heat absorbing material is a material such as sodium acetate trihydrate or sodium metasilicate.

Abstract: In a heat resistant cabinet, a gypsum filling is provided in the interspace between the outer casing and the inner surface. In the upper part of the cabinet, at least one hollow space is present in the gypsum filling. This hollow space extends practically over the whole width and the whole depth of the cabinet. The ceiling is therefore provided by two relatively thin plates of gypsum spaced from each other and each containing a wire mesh for reinforcement, providing a good heat protection for the contents of the uppermost drawer, without adding any substantial vulnerability to impairment of heat protection by falling material or by falling of the cabinet.

Abstract: In the space between an outer casing and the drawer compartments 3, a gypsum filling is devoid of metallic connections between the inner frame 7 and the outer casing. The inner frame 7 is floatingly supported in the gypsum filling. To obtain sufficient cabinet strength, the inner frame 7 is provided with anchoring members extending outwardly which, in the event the cabinet should fall, transmit the forces developed to the gypsum filling without causing overstressing and consequent breakage.