초록 ▼

A tensioning arrangement for a suspension system comprising an elongate suspension member (2) for attachment to an element to be suspended under tension at a predetermined location relative to a support surface (10); the arrangement comprising a lever arm member (1) having a component (5) adapted to

A tensioning arrangement for a suspension system comprising an elongate suspension member (2) for attachment to an element to be suspended under tension at a predetermined location relative to a support surface (10); the arrangement comprising a lever arm member (1) having a component (5) adapted to engage with and support said elongate suspension member remotely from said suspended element, wherein said lever arm member is formed with first (7) and second (6) bearing means adapted to bear respectively against first (9) and second (8) spaced-apart regions of said support surface and wherein at least said first bearing means incorporates an adjuster means (3) permitting the said arm member to be moved relative to said first region of said support surface, thereby to permit adjustment of tension in said suspension member.

대표청구항 ▼

The invention claimed is: 1. An arrangement of concentric vessels or shields, one suspended within another, comprising a tensioning arrangement located between walls of first and second vessel(s) and/or shield(s), said tensioning arrangement comprising an elongate suspension member attached to the

The invention claimed is: 1. An arrangement of concentric vessels or shields, one suspended within another, comprising a tensioning arrangement located between walls of first and second vessel(s) and/or shield(s), said tensioning arrangement comprising an elongate suspension member attached to the first concentric vessel or shield under tension at a predetermined location relative to a support surface on the second concentric vessel or shield; the arrangement comprising a detachable lever arm member having a component adapted to engage with and retain said elongate suspension member remotely from said first vessel or shield, wherein said lever arm member is formed with first and second bearing means adapted to bear respectively against first and second spaced-apart regions of said support surface and wherein at least said first bearing means incorporates an adjuster means permitting the said lever arm member to be moved relative to said first region of said support surface, thereby to permit adjustment of tension in said elongate suspension member. 2. The arrangement according to claim 1, wherein the elongate suspension member is substantially planar, and the adjuster means is adjustable by rotation about an axis which lies in the plane of the suspension member. 3. An arrangement according to claim 1, configured to give the adjuster means a mechanical advantage, relative to the suspension member. 4. An arrangement according to claim 1, wherein the said adjuster means comprises a screw arranged such that an end contacts the respective region of said support surface, and said first bearing means includes a threaded through-hole, formed in said lever arm member, to accommodate said screw. 5. An arrangement according to claim 4, wherein the end of the screw is formed with a spherical surface and the said first region of the support surface is formed with a correspondingly shaped recess (13) to accommodate said spherical surface. 6. An arrangement according to claim 5, wherein at least one of the said spherical surface of said screw and the surface of said recess co-operative therewith is coated or otherwise treated with a material which facilitates relative motion between the screw and the said co-operative surface of said recess. 7. An arrangement according to claim 5, wherein the said spherical surface of said screw and the surface of said recess co-operative therewith are made from materials selected to minimize friction between the screw and the recess. 8. An arrangement according to claim 1, wherein said second bearing means is formed with a suitably shaped contact surface which moves relative to said second region of the support surface when the first bearing means is adjusted. 9. An arrangement according to claim 8, wherein at least one of the said contact surface of said second bearing means and said second region of the support surface is coated or otherwise treated with a material which facilitates relative motion between them. 10. An arrangement according to claim 8, wherein the said contact surface of said second bearing means and said second region of the support surface are made from materials selected to minimize friction between them. 11. An arrangement according to claim 1, wherein the said elongate suspension member is substantially planar and loop-shaped; and the component of said lever arm member is adapted to engage with and retain said elongate suspension member comprises a boss member having a curved surface region over which said elongate suspension member is looped. 12. An arrangement according to claim 11, wherein said boss member is integrally formed with said lever arm member. 13. An arrangement according to claim 11, wherein said boss member is formed separately from said lever arm member and subsequently attached thereto. 14. A method for suspending one concentric vessel or shield within another, by tensioning an elongate, substantially planar, loop-shaped suspension member attached to a first of the vessel(s) and/or shield(s), comprising the steps of providing said elongate, substantially planar, loop-shaped suspension member between walls of the vessel(s) and/or shield(s), connecting the suspension member to a first of the vessel(s) and/or shield(s); providing a support surface having first and second spaced-apart regions on a second of the vessel(s) and/or shield(s); after the suspension member is connected, providing a detachable lever arm member having an engaging component adapted to engage with and support said elongate suspension member, wherein said lever arm member is formed with first and second bearing means adapted to bear on respective first and second spaced-apart regions of said support surface wherein at least said first bearing means incorporates an adjuster means permitting the said lever arm member to be moved relative to said first region of said support surface, then, looping the suspension member over the engaging component and adjusting tension in said suspension member by operation of said adjuster means.