Abstract: A protective device for an electrical installation, having at least two electrodes between which an electric arc can form, and a device for interrupting (6) the arc, extending between an upstream end (6A) and a downstream end (6B), with an entry region (E) for the arc at the upstream end (6A) thereof, at which point the arc enters the breaker device (6). The breaker device (6) has an insulation means (10) which permit the arc to enter the breaker device (6) while forming an obstacle to reaching the exit for the arc. The insulation means (10) are formed by one or more flexible ribbons which form a partial insulation barrier between the electrodes and the upstream end (6A). The invention further relates to overload and short-circuit protection devices.

Abstract: A protective device for an electrical installation, having at least two electrodes between which an electric arc can form, and a device for interrupting (6) the arc, extending between an upstream end (6A) and a downstream end (6B), with an entry region (E) for the arc at the upstream end (6A) thereof, at which point the arc enters the breaker device (6). The breaker device (6) has an insulation means (10) which permit the arc to enter the breaker device (6) while forming an obstacle to reaching the exit for the arc. The insulation means (10) are formed by one or more flexible ribbons which form a partial insulation barrier between the electrodes and the upstream end (6A). The invention further relates to overload and short-circuit protection devices.

Abstract: A protective device for an electrical installation, having at least two electrodes between which an elastic arc can electric arc can form, and a device for interrupting (6) the arc, formed by an assembly of divider plates (7) and extending between an upstream end (6A) and a downstream end (6B), with an entry region (E) for the arc at the upstream end (6A) thereof. The interrupter device (6) has an insulation means (10), formed by caps (13) that form a partial insulating barrier between the electrodes and the upstream end (6A), the caps (13) are provided with teeth (16) housed between two adjacent plates (7). The invention further relates to overload and short-circuit protection devices.

Abstract: A method of tying a wire tie about two crossed reinforcing steel sections and a portable machine, used for automatically installing wire ties on the steel reinforcing bars used in concrete building structures. The machine includes a fixed upper stop piece, two lower jaws, a wire feeding device, a wire guide which includes a spiraling channel divided into several complementary sections cut from a number of independent pieces, a hinged pair of tongs, a rotating pair of tongs and a cutting edge. The wire tie holding together two reinforcing steel sections has the general shape of a "figure 8" loop which is bent perpendicularly to its plane, both loops of the "figure 8" face each other, the locking twist being located at the center crossing of the "figure 8". This machine may be readily adapted to various dimensions of steel cross-sections.

Abstract: A dispensing machine, includes a vat 1. The vat the axis of which is vertical, encloses a slanting disk 2 which is internally tangential thereto along two distinct surfaces: a lower frustum of cone 5, and an upper cylindrical surface 6. The axis of the plate is offset with respect to the axis of the cylinder, in the direction of the highest point 11 of said plate. The coins are dropped in bulk on the lowermost part of the rotating plate, which causes them to rise again and leads them onto a rotating annular rim 7, the latter ejecting the coins according to a common direction.