446,247. Intensifying short-wave solar radiation. HOFBAUER, G., 19, Edmund Weissgasse, Vienna. July 13, 1934, No. 20606. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 14, 1935]. [Class 81 (ii)] [See also Group I] To increase the physiological and photochemical effects of sunlight, screens having thin metallic surfaces reflecting ultra - violet rays are placed around and if desired beneath the person or subject to be treated. The preferred metal is aluminium. The reflectors may be plane, cylindrical, spherical, or arranged in strips to form louvres. The Figure shows the use of a vertical screen y of tarboard sprayed or coated with aluminium and an inclined floor of boards covered with aluminium foil. A floor of metal-coated gravel may also. be used.
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