Patent GB-744473-A (GB)
Title: Improvements in or relating to aircraft or self-propelled missiles
IPC: B64D39/00
Filed: 1952-10-20
Abstract: 744,473. Gas turbine plant. DE HAVILLAND ENGINE CO., Ltd., HALFORD, F. B.. and GLASS. B. G. Nov. 6. 1953 [Oct. 20, 1952], No. 26335/52. Class 110(3) A gas turbine engine is mounted in an aircraft or self-propelied missile including a tubular housing formed as a complete annular unit or in two parts separable in an approximately diametric plane by means of two annular or arch-like axially spaced. supports connected to or forming part .of the housing and extending around the axis of. the engine completely or over an arc of .substantially 180 degrees, the connection between the engine and one support being arranged to resist axial and circumferential and bodily radial movement of the engine relative to the support but permitting comparatively free radial expansion and contraction of the engine and the connection between the engine and the other support being arranged to resist circumferential and bodily radial movement but permitting comparatively free axial movement and radial expansion and contraction of the engine. The engine A is supported in the housing B by means of two supports B<SP>1</SP>, B<SP>4</SP> attached to the housing and rings A<SP>2</SP>, A' attached to the engine. The ring A<SP>2</SP> is attached to the support B' by a number of radial pins C which engage co-axial sockets B<SP>2</SP>, A<SP>4</SP>. If desired, the pins may be mounted in resilient bushes mounted in the socket B<SP>2</SP>. The ring A<SP>3</SP> has a number of projections A<SP>5</SP> which engage radial open sided slots B'. In a modification, the front mounting comprises a ring rigid with the engine having projections which engage radial slots in the ring B<SP>1</SP>. These radial slots are open at the rear so that the projections on the engine may enter the slots in an axial direction when mounting the engine. The projections are retained in the slots by a ring bolted to the ring B<SP>2</SP>. In a modification of this arrangement each slot has a retaining member which is moved into and out of position by means of a radial screw. In another modification, Fig. 8, the housing B is provided with two semi-circular archshaped members J, K, of U-section. Formed in or built on to the forward face of the member J are a series of radial slots J<SP>1</SP> into which extend projections L formed on the upper half of a two part clamp- 'ing ring L<SP>2</SP>, L<SP>3</SP>. The projections are retained in the slots by a cover plate J<SP>2</SP>. The ring members L<SP>2</SP>, L' have an internal V- groove which engages a rib A<SP>6</SP> attached to the engine. The member K is similar to the member J except that the slots K' have a greater axial length than the projections .M to allow for axial expansion. In a further modification the projections on the engine are bonded to rubber bushes which are also bonded to tubular sockets attached to the housing B. In another modification the projections are replaced by an annular member which is connected to an annular housing member by annular strips of rubber. The annular member forming part of the housing may be detachable.