Abstract: An apparatus for cooling underground power cables situated in a tubular cable enclosure. Cooling of underground power cables is presently effected by the circulation of water or oil through pipes within which the cables are situated. The oil or water is then circulated through air or water-cooled heat exchangers which are uniformly spaced along the transmission line. However, a substantial flow of liquid is required to extract a useful quantity of heat, and extensive equipment is necessary to effect this flow of liquid. The subject invention proposes a relatively inexpensive and more efficient apparatus to cool underground cables. The apparatus comprises an enclosed chamber adapted to enclose a portion of a length of underground power cables. A liquid supply inlet is provided to the enclosed chamber, as well as an evaporated liquid outlet from the enclosed chamber.

Abstract: An electrically driven back-combing device comprising a comb, a housing provided with an aperture at one extremity, and means for swinging the comb with respect to the housing. The swinging motion of the comb is produced by a cam disc, rotated by an electric motor, which imparts movement to a cam-following means. The cam-following means transmits its movement to a swinging lever on which is mounted the comb.

Abstract: A thermal distribution system for distributing heated or cooled fluid from respective fluid generators to thermal exchangers. The system comprises a regulating-reversing device for selectively controlling and distributing the fluid from and towards the hot fluid generator and the cold fluid generator, and regulating the flow thereof from and towards the thermal exchangers. A degasifying device is connected to the regulating-reversing device for distributing said fluid to the exchangers and for collecting the same from said exchangers. A pumping means is mounted between said degasifying device and said regulating-reversing device for pumping the fluid from the latter to the former.

Abstract: Domestic sewage water treatment apparatus, comprising an outer tank and an inner tank installed within the outer tank, the bottom of the inner tank being distant from the bottom of the outer tank. A space is formed between the vertical wall of the outer tank and the vertical wall of the inner tank. Means provided at the bottom of the inner tank prevent light particles from ascending into the clarification tank. Means provided at the top of the inner tank create a sufficient upwards suction thus providing the homogenization, aeration and recirculation of the bath and of the activated sludge contained in the aeration tank. Floating means are provided at the top of the inner tank for acting as a protection rampart against the turmoil created by the aeration, homogenization and recirculation means.

Abstract: Braking device for railroad bogie running at high speed, comprising a fixed part integrally connected to the frame of the bogie and a movable part suspended from the fixed part and adapted to be vertically displaced by suitable means towards a rail. The movable part is provided at its lower face with a series of electromagnets arranged above the rail. The series of electromagnets is flanked at each of its sides with a braking shoe adapted to be applied on the rail at the moment of braking in such a way that the electromagnets be placed at a relatively small distance from the rail. Means are provided for controlling the position of the braking shows as a function of the wearing of the shoe.

Abstract: A boat having a mainsail and a conventional rudder. The mainsail is supported by a mast and a pivotally mounted boom. A blade is pivotally mounted toward the free end of the boom about an axis that is substantially parallel to the mast. The blade acts as an auxiliary rudder for steering the boom and setting the angle of the sail. Though the boom pivots, the blade may be held parallel to a pre-set direction, so that the leeway component of the force of the wind on the sail is held substantially constant.