Abstract: The fixed structure (10) incorporates an abutment surface (10a) upon which a corresponding abutment surface (8a) of the transportable element (1) comes to bear, with the interposition between the abutment surfaces (8a, 10a) of at least two concentric annular sealing joints (13a, 13b). The pressure in the space (18) between the sealing joints (13a, 13b) and bounded by the abutment surfaces (8a, 10a) is measured during the emplacement of the transportable element (1) to determine whether it is leakproof. The measured maximum pressure and/or the variation of pressure measured over time is compared with predetermined values corresponding to a correct emplacement of the transportable element (1).

Abstract: The device comprises two winches (12, 12') fastened to the outer surface of a hollow body (2) having a vertical channel (3) in which the load (4) is displaced. Each of the winches (12, 12') comprises two drums (13a, 13b) driven by a common motor (14). The drums (13a, 13b) of a first winch (12) are each arranged opposite a drum of the second winch (12') in relation to the axis of the channel (3). The device comprises two cables (15a, 15b) which are common to two drums located opposite one another around the body (2). The cables (15a, 15b) are wound with their end part on the drums located opposite one another and on their run between the drums pass over deflecting pulleys (16a, 16b), the axis of which is stationary, and over load-supporting pulleys (34a, 34b), the axis of which is movable and accompanies the load. The device ensures that the load is held and displaced in the event of a failure of one of the motor assemblies (14) and in the event of a break of one of the cables.

Abstract: The device comprises, in positions adjacent to the bearing surface (15) of the transportable container (1) on the fixed structure, a first member (16) for plugging the central channel (3) of the container (1), and a second member (17) for plugging the upper end of the well (18). These members are arranged inside a zone of contact of at least one o-ring seal (13) with the bearing surface (15). Each of the plugging members (16, 17) comprises a planar surface arranged, in its closing position, in the planar bearing surface (15) of the container or in the planar bearing surface of the fixed structure, respectively. At least one of the plugging members (16, 17) can move in the axial direction of the well (18) and of the central channel (3) of the container (1) and in a transverse direction perpendicular to the axial direction, between its closing position and its opening position.

Abstract: The transfer cupboard (1) comprises a solid body (2) made of a radiation-absorbing material, in which is provided an axially directed receptacle (3) for receiving the assembly (4). The cupboard (1) comprises at least one circuit (15) for cooling the assembly (4) by gas and integrated in the body (2) of the cupboard (1). The cooling circuit comprises at least one main axially directed gas-circulating channel (16) formed in the body (2) of the cupboard, at least one device (18) for the circulation of gas in the cooling circuit (15), and at least one device (17) for purifying the circulating gas, which are arranged in the vicinity of one end of the main channel (16). Two secondary channels (20, 21) formed in the body (2) of the cupboard make it possible to connect each of the ends of the main channel (16) to a corresponding end of the receptacle (3) for the fuel assembly (4), by which the cooling circuit is closed again.