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An annular hanger for supporting an annular wall element from a gas turbine engine annular outer casing is circumscribed about a centerline extending in opposite first and second axial directions and has an annular first hook extending in the first axial direction from said body section and an annul

An annular hanger for supporting an annular wall element from a gas turbine engine annular outer casing is circumscribed about a centerline extending in opposite first and second axial directions and has an annular first hook extending in the first axial direction from said body section and an annular second hook extending in the second axial direction. One of the hooks has circumferentially spaced apart tabs extending equal axial lengths from the body section and corresponding notches circumferentially disposed between a corresponding adjacent pair of the tabs. The annular hanger is used to support at least in part a wall element from the outer casing as part of a bayonet mount. The bayonet mount further includes a bayonet slot on one of the casing and the wall element and the hanger tabs are received within the bayonet slot.

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An annular hanger for supporting an annular wall element from a gas turbine engine annular outer casing is circumscribed about a centerline extending in opposite first and second axial directions and has an annular first hook extending in the first axial direction from said body section and an annul

An annular hanger for supporting an annular wall element from a gas turbine engine annular outer casing is circumscribed about a centerline extending in opposite first and second axial directions and has an annular first hook extending in the first axial direction from said body section and an annular second hook extending in the second axial direction. One of the hooks has circumferentially spaced apart tabs extending equal axial lengths from the body section and corresponding notches circumferentially disposed between a corresponding adjacent pair of the tabs. The annular hanger is used to support at least in part a wall element from the outer casing as part of a bayonet mount. The bayonet mount further includes a bayonet slot on one of the casing and the wall element and the hanger tabs are received within the bayonet slot. t respective axes perpendicular to said longitudinal axis of said riser ZZ'; and said first pads co-operating with one of wheels and second friction pads, such that said one of said wheels and said second pads bear against said riser, and enable it to slide, and said riser comes to bear against said first pads only when said wheels and said second pads are moved under the effect of lateral displacements of said riser. 2. Apparatus according to claim 1, characterized in that said first pads can pivot relative to respective axes secured to said pad support. 3. Apparatus according to claim 1, characterized in that said first pads are fixed relative to said pad support and said pad support can pivot relative to said floating support to enable said pads to pivot about an axis XX' perpendicular to said longitudinal axis ZZ' of said riser. 4. Apparatus according to claim 3, characterized in that said first pads are fixed on a tubular element encasing said riser coaxially, said tubular element being mounted on a ball and socket joint enabling said pivoting and said rotation respectively of said first pads and of said riser. 5. Apparatus according to claim 4, characterized in that said joint is a laminated abutment within which said tubular element is embedded. 6. Apparatus according to claim 1, characterized in that said one of said second pads and said wheels are mounted on axes extending perpendicularly to the vertical axis ZZ' of said riser, the axes of said wheels being capable of moving in translation on axes XX', YY' perpendicular to the longitudinal axis ZZ' of said riser. 7. Apparatus according to claim 1, characterized in that said first pads are distributed symmetrically around said riser and comprise at least three pads. 8. Apparatus according to claim 7, wherein said at least three pads are situated at the same level along the longitudinal axis ZZ' of said riser. 9. Apparatus according to claim 1, characterized in that said one of said second pads and said wheels are disposed symmetrically around said riser about its longitudinal axis ZZ'. 10. Apparatus according to claim 9, wherein said axes of rotation are situated substantially in the same plane. 11. Apparatus according to claim 1, characterized in that said first pads are mounted on respective axes situated substantially in the same horizontal plane as the axes of said wheels, and said first pads and said wheels are disposed successively and symmetrically around said riser in alternating manner. 12. Apparatus according to claim 1, characterized in that said first pads and said wheels are disposed in a staggered configuration, their respective pivot and rotation axes being situated at different respective levels along the longitudinal axis ZZ' of said riser. 13. Apparatus according to claim 1, characterized in that said first pads are disposed on at least two different levels P'1and P'2along said longitudinal axis ZZ' of said riser, and said levels P'1and P'2are disposed symmetrically about a horizontal plane corresponding substantially to the midplane P0of the zone along the longitudinal axis ZZ' where said joint means are situated. 14. Apparatus according to claim 1, characterized in that the axes of rotation of the wheels are disposed on at least two different planes P3,P4perpendicular to said longitudinal axis ZZ' of said riser, and said planes P3,P4are disposed symmetrically about a horizontal plane P0corresponding substantially to said midplane of the zone along the longitudinal axis of said riser where said joint means are situated. 15. Apparatus according to claim 1, characterized in that said first pads are situated on two different levels along the longitudinal axis ZZ' of said riser, an upper level and a lower level, and said one of said second pad, and said wheels are situated above said upper level and below said lower level. 16. Apparatus accor