Abstract: Device for compacting fluid sludges containing fibrous materials, consisting in slowly stirring the sludge mechanically in the top part of a device, then pressing it moderately in a conical intermediate part of the device and then compacting it in a bottom cylindrical chamber of the device.

Abstract: The circulation of a low temperature cooling fluid is insured by thermal hon effect in a cryoalternator from within a closed loop circuit containing an inner rotating seal of the "bayonet" type with a very small radial gap. Longitudinal and radial piping within the rotor permits internal circulation of cooling fluid by thermal siphon effect across the "bayonet" type rotating inner seal in the absence of positive circulation by leakage of the coolant across the inner seal radial gap.

Abstract: Integrated nuclear reactor cooled by a liquid metal and constituted by a n tank, which contains a central inner tank containing the core and the hot liquid metal, this inner tank being connected to individual cylindrical chambers each containing a heat exchanger wherein the surfaces of the inner tank and of the cylindrical chambers bulge radially outwards at the level of supply orifices for transferring the hot liquid metal from the inner tank to the heat exchangers and wherein the cylindrical chambers are fixed directly onto the inner tank by neck portions interconnecting the two bulges and providing a path for liquid metal flow.

Abstract: A method for simulating cavitation on models by hydraulic testing with seate micro-bubbles which produce effects similar to those of a prototype operating at the same cavitation number wherein the micro-bubble content of the test liquid around at least a predetermined part of the model is adjustable in number per unit volume and the bubbles are homogeneously distributed thereabout and have dimensions of less than 200 microns.

Abstract: A self-resistant light-alloy sectional member for an articulated fitting, ich can be formed by extrusion. The sectional member is characterized in that its cross-section is closed to form an elongated box and in that at least one of the thickness edges of the sectional member has a rigid longitudinal fastening portion, enabling a fitting without any deformation together with a sectional member whose thickness edge is contiguous, provided with a corresponding fastening part running along it.