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Publication of BE686490ApublicationCriticalpatent/BE686490A/fr
F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
Dispositif optimalisant la circulation de l'air dans un systeme de ventilation par colonne pour le refroidissement et la conservation des cereales, via des ouies directionnelles de type persienne