1. A cowl structure for a gas turbine engine, the cowl structure comprising inner and outer skins constructed such that at least a major proportion of a load applied to the cowl structure is transmitted along the outer skin, wherein the cowl structure has a principal axis and the inner skin includes first, second and third sections arranged adjacent and in axial alignment with each other parallel to the principal axis of the cowl structure, the second section being resiliently mounted intermediate the first and third sections by joint means, the joint means permitting relative movement between the sections and insulating the second section from the adjacent cowl structure.
2. A cowl structure as claimed in claim 1 in which the outer skin is more rigid than the inner skin.
3. A cowl structure as claimed in claim 1 or claim 2 in which seal means are provided between the adjacent edges of the first, second and third sections, the seal means extending substantially circumferentially around the inner skin.
4. A cowl structure according to claims 1-3 wherein the joint means are flexible to allow said relative movement between the adjacent sections.
5. A cowl structure according to any of claims 1-4 wherein the joint means includes bearing means provided on at least one of the sections, and engagement means extending from the adjacent section to engage the bearing means.
6. A cowl structure according to claim 5 wherein the engagement means comprises a plurality of bracket members substantially evenly spaced around and mounted on at least one of the sections.
7. A cowl structure according to any of claims 1-4 wherein the joint means includes resilient urging means to allow said relative movement between the sections and urge the adjacent sections away from each other.
8. A cowl structure according to claim 7 wherein the resilient urging means comprises spring means.
9. A cowl structure according to claim 8 having internal surfaces across which air can pass in use, wherein the spring means extends substantially radially outwardly from the inner skin, to maintain alignment of the internal surfaces.
10. A cowl structure according to claim 8 or claim 9 wherein the spring means comprises a plurality of spring members spaced around the cowl structure at substantially regular intervals.
11. A cowl structure according to any preceding claim including a projecting member extending from one of the adjacent sections at the opposite side thereof to the joint means.
12. A cowl structure according to any preceding claim wherein the cowl structure is movable between translated and non-translated conditions relative to the remainder of the engine, and guide means are provided to guide the first section from the translated condition to the non-translated condition.
13. A cowl structure according to claim 12 when dependent on claims 5 or 6 wherein said guide means comprises a sloping surface on a leading portion of said engagement means the sloping surface engaging the bearing means as the first and second sections are moved from the translated condition to the non translated condition.
14. A cowl structure according to claim 12 when dependent upon any of claims 7 to 10 wherein the guide means comprises co-operating formations provided on the first or the second sections, the formation being associated with components of the resilient urging means provided between the first and second sections.
15. A cowl structure according to claim 14 wherein the co-operating formations comprise tapered members mounted on one of the first and second sections, the tapered members engaging with complementary apertures in associated components of said resilient urging means.
16. A cowl structure according to any preceding claim wherein at least one door is provided in said cowl structure to provide access to the internal components or the engine.
17. A gas turbine engine incorporating a cowl structure as claimed in any preceding claim.
18. A gas turbine engine substantially as herein described with reference to and as shown in the accompanying drawings.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A hardline coaxial cable connector comprising:
a front body member having a first end and a second end, said first end adapted to connect to an equipment port and said second end having external threads;
a back body member separable from the front body member, said back body member having a first end and a second end, said first end including an external shoulder and said second end housing a permanent compression fitting;
a coupler nut having a first end and an internal ridge, wherein said coupler nut is retained on said back body member at said shoulder of said back body member and said first end having internal threads which mate with the external threads on said second end of said front body member;
whereby the front body member can be detachable and re-attachable from the back body member without adversely affecting the permanent compression fitting.
2. A hardline coaxial cable connector according to claim 1, wherein said back body member has mounted therein a mandrel having a first end.
3. A hardline coaxial cable connector according to claim 2, wherein said first end of said mandrel includes a shoulder adapted to cooperate with said internal ridge on the coupler nut to retain said coupler nut on the back body member.
4. A hardline coaxial cable connector according to claim 3, wherein said second end of said front body member is adapted to mate with one of the first end of the back body member and the first end of said mandrel.
5. A cable connector according to claim 4, wherein said second end of said front body member includes a tapered surface which mates with a complementary tapered surface at the first end of said mandrel.
6. A hardline coaxial cable connector according to claim 4, further comprising a thrust bearing disposed between said internal ridge of said coupler nut and said shoulder of said mandrel.
7. A hardline coaxial cable connector according to claim 1, wherein said front body houses a conductive pin, said conductive pin including a front end for connecting to said equipment port and a back end, wherein said back end includes a collet.
8. A hardline coaxial cable connector according to claim 7, wherein said collet includes a spring biased ring to define a mechanical interference fit.
9. A cable connector according to claim 8, further comprising a guide disposed within said front body, wherein a portion of said guide fits over said ring.
10. A hardline coaxial cable connector according to claim 3, wherein said front body houses a conductive pin, said conductive pin including a front end for connecting to said equipment port and a back end, wherein said back end includes a collet.
11. A hardline coaxial cable connector according to claim 10, wherein said collet includes a spring biased ring to define a mechanical interference fit.
12. A hardline coaxial cable connector according to claim 11, further comprising a guide disposed within said front body, wherein a portion of said guide fits over said ring.
13. A hardline coaxial connector body comprising:
a front body member having a first end adapted to mate with an equipment port, a second end with external threads, and housing a conductive pin;
a back body member having first end having an external shoulder and a second end adapted to house a permanent compression fitting;
a coupler nut including a first end having internal threads adapted to selectively engage the external threads of said front body member and an internal ridge adapted to mate with the shoulder of back body member;
whereby the front body member is detachable and re-attachable from the back body member by selective engagement of the threads of the coupler nut, said selective engagement not adversely affecting the permanent compression fitting.
14. A hardline coaxial cable connector body according to claim 13, wherein engagement of the threads of the coupler nut holds the second end of the front body member in contact with the first end of the back body member.