| 摘要 |
553,200. Evaporating liquids. REAVELL, J. A. Sept. 23, 1941, No. 12279. [Class 39 (iii)] Evaporation of water or other liquid in bulk is effected by means of infra red radiation of wave lengths between 10,000 and 50,000 Angstrom units. The liquid container is translucent to infra red radiation. The method is applicable to heat-sensitive liquids such as blood or solutions of vitamins and enzymes such as diastase or rennet which would be affected by a high contact temperature of the wall of the vessel. The radiation generator may employ tungsten or carbon filament lamps operated at reduced temperatures, or ceramic rods wound with "Nichrome" (Registered Trade Mark) or platinum wire. The container wall may be of glass, e.g. that described in Specification 496,508, [Group XXIII], or fused silica, according to the wave-length employed. Reference has been directed by the Comptroller to Specification 12075/12, [Class 39 (iii)].
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