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    • 21. 发明专利
    • Improvements in or relating to ice skating rinks
    • GB673692A
    • 1952-06-11
    • GB2048149
    • 1949-08-06
    • REFRIGERATION AI Z GUILDFORD LPETER WALTER EDWARD BAKER
    • E01C13/10F25C3/02
    • 673,692. Ice skating-rinks. REFRIGERATION A-Z (GUILDFORD), Ltd., and BAKER, P. W. E. Aug. 8, 1950 [Aug. 6, 1949], No. 20481/49. Class 20(i). [Also in Group XIII] An ice skating-rink comprises a structure built up of prefabricated sections including heat insulative, e.g. cork, layers 3c, 4b, and eutectic freezing plates 4d supported horizontally on or above the cork layers, an upstanding rim 5 surrounding the structure. Longitudinal bearer members 1 support bottom sections which extend the full width of the rink, each section consisting of the cork slabs 3c resting on a board floor 3b carried in an L- section light alloy frame 3a, a canvas sheeting 3d covering the cork. On the bottom sections are supported top sections which include, besides the freezing plates 4d, a cork layer 4b carried in a wooden frame 4c, with convas 4a beneath the cork. Pipes 4e in the plates 4d enable a refrigerant, e.g. brine, to be circulated from a compression refrigerating apparatus. A layer of water-absorbent material, e.g. sand 6, overlies the top of the plates 4d and is flooded and frozen to form a base for the ice floor proper. The upper sections overlap the joints between the lower sections. The upper and lower sections may be prefabricated as a unit, and part or all of the rink may be mounted on wheels.