Device for joining two elements

Whole formed by two elements assembled together by a device effecting assembly of said elements, said device comprising, a stud including at least one radial lug, said stud secured to one of said elements by said one radial lug, said one element including a passage having a recess on the outer face thereof for receipt of said lug, said lug being maintained within said passage by a return resilient device which bears at one end thereof on said stud and at the other end on said one element, a sleeve positioned within said passage, said sleeve having a bottom with an opening therein for receipt therein of said lug, said return resilient device being positioned within said sleeve and bearing at one end thereof on said stud and at the other end on said bottom, said sleeve being engaged between said elements and being slidable longitudinally within said passage, said sleeve having a threaded portion, a tightening ring screwed on said threaded portion, said tightening ring bearing on the other of said elements, whereby the force of the return resilient device and the pressure exerted by one of the elements on the other element is variable according to the axial position of said sleeve as the tightening ring is screwed upon said sleeve.