example the pin 14 may comprise a hollow tube and the first and second portions 21 and 22 may be fitted within a tubular pin 14 in such an alternative the boss 13 would comprise an interior stud that is restrained within the interior surface of the first portion 21 many other examples within the teaching of the invention will be recognized by those skilled in the art such as replacing the spherical articulating joint 19 with a ball in socket joint a universal joint a gimble device or a linkage structure in the embodiment shown in fig4 and 6 the first and second portion 21 22 of the articulating joint 19 have opposing spherical joint surfaces 26 and 27 the first and second portions 21 and 22 are shown as mutually nested sleeves however other arrangements are certainly possible such as a ball and socket joint however due to limited range of movement that is required for this application the size of the spherical surfaces 26 and 27 can also be limited comparison between fig5 and fig6 will illustrate a further advantage of the invention in that the articulating joint 19 not only serves to accommodate relative rotational movement between the combustor 8 and the pin 14 as well as relative radial movement but further the articulating joint is mounted to accommodate any misalignment in the installation fig6 shows a misalignment between the second portion 22 and the interior surface of the combustor boss 13 further fig6.