Abstract: Device for automatic adjustment of tension applied to a control cable has a container element, a first sliding element sliding in the container element, a second sliding element sliding in the first sliding element and connected to a duct of a control cable. A sphere for constraining the translation of the sliding elements is in the container, housed in a seating formed in the first sliding element and having at least one lower portion in contact with the second sliding element and at least one upper portion that can contact the container, there being also provided a first operating on the first sliding element and a second helical spring operating on the second sliding element.

Abstract: A system for assembling a high-pressure fluid tube on a tubular pin, is part of a fitting element provided to be used in particular on motor-vehicles, for example for the production of pipes intended for manufacturing braking circuits or other circuits, in which high-pressure oil or other fluids flow. The system has a first inner layer made of plastic, a second layer made of a steel plait or other suitable material such as fibers or the like, a third coating layer of plastic material and a bush made of steel, alloy or other material, fitted into an end of the tube. The tube is fitted on the pin and locked by crimping of a metallic bush having a radial flange extending into an annular groove of the pin and distorting an O-ring in the groove between the flange and the pin.