GB690271A - Improvements in heating or cooling systems for rooms of all kinds - Google Patents

Abstract

690,271. Ceilings; ventilation ducts; tiles. FRENGER, K. G. Feb. 4, 1947 [Dec. 18, 1944; June 21, 1945], Nos. 3353/47 and 3355/47. Classes 20(iv), 87(i) and 137 [Also in Group XIII] A sub-ceiling for a room is formed from heat-conducting plates 2, preferably of aluminium, opposite edges 3 of each plate being bent to grip closely tubes 1 heated by hot-water or steam, a layer 4 of heatinsulating material being placed within each plate. The sub-ceiling. may also be used for cooling purposes. Ventilation air may pass through openings 7 in the layers 4 and plates 2 to the space below. The tubes 1 may be suspended from the ceiling proper by brackets, the plates being thrust upwards until the flanges grip the tubes. Alternatively the tubes and plates may be first attached to each other to form units ready for suspension. Specifications 690,279, 690.320 and 690,321 are referred to. The Specification as open to inspection under Sect. 91, comprises also a sub-ceiling constructed from a number of plain and perforated rectangular plates 27, 27<SP>1</SP>, each of which may have recesses on its outer surface for acoustic purposes. The plates 27 are of thin sheet metal and the plates 27' of thin fibrous material or metal. Fresh air is admitted below the ceiling proper through a duct 30 and auxiliary ducts 32. Air flowing through the duct 30 flows through a pre-heating pipe battery 31 and thence over the radiating surface, giving up heat to the radiating surface and to the air admitted through ducts 32. The rocm below is heated partly by radiation frcm plates 27 and partly by the distribution of warm air through the perforated plates 27<SP>1</SP>. Used air escapes through an outlet 33. A thermostat 34 acting on a valve 35 controls the temperature of the battery 31. Alternatively hot air may be introduced into the duct 30, the battery 31 being dispensed with and temperature control being effected by a thermostat 36 controlling a damper 37. To increase heat absorption, ribs 38 may be provided on the plates 27. Girders are used to suspend the plates from the ceiling. Instead of arranging the heating means as a false ceiling it may be constructed as a frieze. This frieze may admit ventilation air and be electrically heated by embedded coils. This subjectmatter does not appear, in the Specification as accepted.