Abstract A low temperature cable including support means for carrying electrical conductors on a cylindrical surface disposed concentrically of the axis of the cable and which is designed to reduce tensile stress and relative movement in the cable as it is cooled. A plurality of aligned supporting rings are initially held in spaced relationship by means of a number of rod members that extend between adjacent rings with the ends of the rods loosely held in recesses near the outer peripheral surfaces of the rings. This structure is completed to a tube-like configuration by a wrapping of foil or tape. The rods and rings on the one hand and the foil or the tape on the other hand are usually, of different materials having different coefficients of contraction so that as the completed structure is cooled, the rods contract to an extent that they are disengaged from the rings and the movement of the rings, caused by the contraction of the foil or tape, relative to each other is not hampered.
In an arrangement for supporting the superconductors of a low temperature cable concentrically with the axis of the cable and enclosing the region through which a coolant flows, the improvement comprising, in combination: a. a plurality of supporting rings disposed one behind the other in aligned and spaced relationship; b. means securing said supporting rings to each other and allowing movement of said supporting rings relative to each other; and c. tape means wrapped around said supporting rings and said securing means to provide a tube-type structure.
Claim 2
Dependent Claim
87 words
In an arrangement for supporting the superconductors of a low temperature cable concentrically with the axis of the cable and enclosing the region through which a coolant flows, the improvement comprising, in combination: a. a plurality of supporting rings disposed one behind the other in aligned and spaced relationship; b. means securing said supporting rings to each other and allowing movement of said supporting rings relative to each other; and c. tape means wrapped around said supporting rings and said securing means to provide a tube-type structure.
Claim 3
Dependent Claim
70 words
An arrangement as defined in claim 1 wherein said supporting rings are provided, along each axial edge, with circumferentially spaced openings, and wherein said securing means comprise a plurality of rods which extend in parallel relationship between adjacent supporting rings, said rods at least before the first time said arrangement is cooled to a low temperature, being loosely supported at the ends thereof within said openings in adjacent supporting rings.
Claim 4
Dependent Claim
36 words
An arrangement as defined in claim 2 wherein said ends of said rods have spherical protrusions, and said spaced openings are recesses having a female mating configuration for said spherical protrusions to provide a snap connection.
Claim 5
Dependent Claim
26 words
An arrangement as defined in claim 2 wherein the circumferentially spaced openings are constituted by recesses open along the outer peripheral walls of said supporting rings.
Claim 6
Dependent Claim
17 words
An arrangement as defined in claim 1 wherein said tape means are composed of perforated synthetic material.
Claim 7
Dependent Claim
17 words
An arrangement as defined in claim 1 wherein said tape means are composed of shrinkable foil material.
Claim 8
Dependent Claim
16 words
An arrangement as defined in claim 1 wherein said tape means are composed of tape-type superconductors.
Claim 9
Dependent Claim
20 words
An arrangement as defined in claim 1 wherein said tape means are composed of band-type carriers with a superconductor thereon.