Abstract: A device for fastening a boot to a cross-country ski including a stirrup having a central part articulated on a pin transverse to the ski, and branches shaped to allow fitting of a complementary part made at the front end of the boot. The stirrup is equipped with structure for immobilizing the front end of the boot, which consist of a locking lever mounted to pivot on the stirrup around a pin transverse to the ski, a catch mounted to pivot on the locking lever around a pin crosswise to the ski, comprising two fingers coming in contact with the front edges of the stirrup forming control ramps of the position of the lever, and an elastic element placed between the stirrup and the lever and acting on the latter in the closing direction, in a plane passing approximately through the pin for articulation of the catch on the lever and on both sides of which are points of contact between the catch and stirrup, respectively in an opening position and in a closing position.

Abstract: Low voltage power capacitor of the self-healing type, wherein each capacitor cell is fitted with individual protection, enabling the cell to be disconnected in all cases of faults which are liable to occur. The cell coil is electrically connected in series to a fuse housed in a chamber arranged in the sealing cover of the casing housing the coil. Protection against overpressures inside the casing is provided by a membrane, deformation of which actuates a short-circuiting contact. The clean short-circuit, generated by closing of the short-circuiting contact, causes the fuse to blow and the faulty cell to be disconnected.