Abstract: An improved heat insulation assembly for a thermal turbo-engine having hollow spaces, is provided with the assembly including a heat-insulating material enclosed within a heat-resistant cover that is formed such that it permits an increase in the inner volume, and the heat-insulating material being a heat-insulating material which increases its volume upon heating to such an extent that the cover is expandable until contact with the inner side of a corresponding hollow space.

Abstract: An absorber for electromagnetic and acoustic waves comprising an absorber body containing mineral wool and particles of a conductive substance, in which the mineral wool is impregnated with a binder having the particles admixed therewith.

Abstract: A flue insulation assembly comprising an insulation lining surrounding the flue wall in spaced relationship and composed of insulation elements retained by a mounting structure. The insulation lining is composed of a plurality of plate-shaped insulation elements laterally abutting one another so as to form a near-annular polygon, and the mounting structure is composed of vertically spaced mounting rings connected to the flue wall by mounting ring supports and adapted to retain the insulation elements therebetween. The mounting rings are provided with stop elements projecting over the upper and lower rims of the plate-shaped insulation elements on both sides thereof, and an outer skin is secured to the mounting rings.

Abstract: A wall panelling for altering the acoustic properties of a wall, comprising wall elements adapted to have their orientation altered with respect to the wall. The wall panelling comprises a plurality of hinged frames mounted on the wall panelling or the wall itself and adapted to be swung away from the wall panelling or wall, respectively. The frames contain wall elements mounted therein for rotation by 180.degree. with respect to the associated frame. The front and rear faces of the wall elements have different acoustic absorption or reflection properties.

Abstract: A supporting structure for supporting the heat insulation elements of a steam generator of the type that is used in the primary circuit of nuclear power stations. The supporting structure utilizes hanging ties which are suspended from suspension pivots that are attached to the building which houses the steam generator. The hanging ties have the heat insulation elements attached thereto, and are integrated into the construction of the heat insulation elements. The steam generator consists of separate parts which are joined by weld seams that are subject to periodic inspection, and the heat insulation elements are made up of fixed parts which are suspended from the hanging ties and which form spaces therebetween for access to the weld seams, the spaces between the fixed insulating elements being sealed off by removable thermal insulating elements.

Abstract: The dividing wall between a heat producing compartment of a helicopter, such as a compartment in which an engine or other power mechanism is located, and the pilot's cabin is made of a sheet of fiberglass that cannot withstand being subjected to an operating temperature that is in excess of about 200.degree. C. Accordingly, the hot side of the wall is lined with one or more liner blankets, each having a mineral fiber felt core, a metal foil front layer and a glass fiber fabric rear, supporting layer. These layers are quilted together and the result is provided with a binding about the periphery. The metal foil layer terminates somewhat short of the edge in order to make the margin more compressible. Each liner blanket is attached to the wall surface by a flexible adhesive. Where two or more of the blankets are used, they are placed so close together edge-to-edge that their respective margins are compressed, by abutment with one another preventing any unprotected gap.

Abstract: A tower or cupola-like covering for the protection of radio or television antennae against the weather is made in the form of a sectional casing with each section of the casing being attached only along its bottom or top edge to a supporting structure, with expansion joints between such edges that transmit no supporting forces. The construction eliminates compression or tension forces in the covering which might damage the same.

Abstract: A temperable container with a heat-insulating jacket completely enclosing a tank supported in the container with predetermined passages between the tank and the jacket for conducting a heat transfer medium in forced circulation around the entire outer surface of the tank. An inlet and outlet pass through the jacket to connect to external equipment for supplying the heat transfer medium, and to avoid a short circuit flow from inlet to outlet a partition is provided in the container and has at least one throttleable bypass opening the throttle position of which can be adjusted by a programmable control.