Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3046148A
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Individual
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Individual
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Priority to GB3046148ApriorityCriticalpatent/GB645525A/en
Publication of GB645525ApublicationCriticalpatent/GB645525A/en
F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
F24F7/00—Ventilation
F24F7/02—Roof ventilation
Abstract
645,525. Ventilators. BRYCE, A. Nov. 23, 1948, No. 30461. [Class 25] A roof ventilator comprises an openended cylinder 1, to one end of which is connected by pieces 3 a cone 2 of less diameter than the cylinder with its apex lying outside and at the other end two co-axial tubes 4, 5, are connected by brackets 6 these mating with a tubular socket opening into the building.