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Publication of GB852355ApublicationCriticalpatent/GB852355A/en
852,355. Air conditioning. NOLAN, K. W. Jan. 16, 1958 [July 10, 1957], No. 21816/57. Class 137 [Also in Groups XI and XIII] Air from outside a room is drawn through a filter 48 by a fan 46 and directed by a two-way valve 49 to pass through a refrigerator 51, or to be blown over the uninsulated outer casing 11 of a solid-fuel fired, open-fronted heating stove (see Group XI).