Improvements introduced in the object of the main patent No. 416,178, filed on June 22, 1973, on: improvements in automatic radial clearance regulators for brake devices, which come into contact with said rotary element to brake it, arranged to insert into transmission between an element to operate the brake element and the brake element itself, of the type comprising a nut threadedly mounted on a rigid bolt with a first bar connected to the brake element, coupling means for the nut arranged for block the rotation of the latter and move it filially, connecting the drive; a first thrust element for the nut that acts on a first face thereof and which is elastically connected to the coupling means at least by means of a prestressed spring placed between said element and said means, said thrust element being rigid with the regulator box, characterized in that each regulator is provided with resistant means apt to oppose the axial displacement of the first bar with respect to the boxes with an axial force of predetermined value, the means allowing the displacement of the bar with respect to the box only when the predetermined value of the axial force is greater than the value of the axial force necessary to produce the rotation of the nut with respect to said screw. (Machine-translation by Google Translate, not legally binding)
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