Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1983-03-07
1984-08-21
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
174126S, H01F 722
Patent
active
044673035
ABSTRACT:
A superconducting magnet includes a coil support structure comprising a body formed of a generally-cylindrical wall. The body includes at least a pair of surfaces facing inwardly of said body, each being of generally-cylindrical shape and each being adapted to abut the radially-outer surface of a respective one of a pair of ring-shaped, superconductive coils. The support structure comprises a material such as aluminum which is adapted to shrink around the coils as the body and coils are cooled to a cryogenic temperature, so as to provide interference fits between the body and the coils. To prevent movement of the coils towards each other due to magnetic attraction forces therebetween, the body includes a pair of shoulders extending inwardly from respective adjacent edges of the pair of inwardly-facing surfaces. The shoulders are adapted to abut confronting surfaces of the pair of coils to prevent the coils from moving towards each other.
REFERENCES:
patent: 3514730 (1970-05-01), Kassner
patent: 3559126 (1971-01-01), Drautman
patent: 3991333 (1976-11-01), Laskaris
patent: 4333228 (1982-06-01), Koch
J. E. C. Williams et al., "Magnet System of the 500 MHz NMR Spectrometer at the Francis Bitter National Magnet Laboratory: I. Design and Development of the Magnet", Rev. Sci. Instrum., vol. 52, No. 5, (May 1981), pp. 649-656.
J. E. C. Williams et al., "Magnet System of the 500 MHz NMR Spectrometer at the Francis Bitter National Magnet Laboratory: II, Disturbances, Quenches and Trailing", Rev. Sci. Instrum., vol. 52, No. 5, (May 1981), pp. 657-661.
Cutter Lawrence D.
Davis Jr. James C.
General Electric Company
Harris George
Snyder Marvin
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