of the surrounding atmosphere the element 38 will release as explained above and this will result in a water jet directed towards deflector 39 which will distribute the water in all directions the deflector 39 is mounted on the frame opposite the end of the tube 30 a second type of linkage using a linkage element according to the invention is shown in fig8 two plates 41 and 42 forming part of a whole linkage system not shown are clamped in parallel the one against the other by means of a linkage element 43 these plates have the tendency to separate by sliding over each other 39 s surface under influence of a traction force t a pressure force p or a flexion force d they are however retained by a linkage element 43 that clamps both plates together the correct positioning is guaranteed by the protrusions 44 in the contact surface of plate 41 which fit into the recesses or holes 45 this is shown more in detail in fig9 in such a way both plates 41 and 42 cannot slide over each other not even slightly as long as they are clamped between the jaws 47 and 48 fig1 of the linkage element 43 this linkage element is shown in front view in fig1 it has the form of an oval plate having an aperture 49 connected via a.