Catalogue R2 illustrating and describing metallic building materials for outside use, 1912 / Metallic Roofing Coof Canada. . VENTILATORS Registered Trade Mark. Halitus1 For Barns and Stables ForDwellings andWarehouses. STOCK SIZES Diameter, Neck Measurement 6 inch 8 ..10 ,.12 „15 ..18 ,.20 „24 h30 n36 ..48 Sectional view of the Halitus Ventilator, showing part of Neck and Case cut away. Dampers put in when ordered. THE Halitus Barn and House Ventilator is designed along scientific and practical lines, and is unquestionably the best and most efficient ventilator ever sold atanywhere near its pr
Catalogue R2 illustrating and describing metallic building materials for outside use, 1912 / Metallic Roofing Coof Canada. . VENTILATORS Registered Trade Mark. Halitus1 For Barns and Stables ForDwellings andWarehouses. STOCK SIZES Diameter, Neck Measurement 6 inch 8 ..10 ,.12 „15 ..18 ,.20 „24 h30 n36 ..48 Sectional view of the Halitus Ventilator, showing part of Neck and Case cut away. Dampers put in when ordered. THE Halitus Barn and House Ventilator is designed along scientific and practical lines, and is unquestionably the best and most efficient ventilator ever sold atanywhere near its price. It is simple in construction, so that there is nothing to get outof order, and it is practically everlasting. It is made from fine quality, heavy Galvanized Steel, reinforced with band-ironbraces, to withstand the wind. The top or roof is composed of two hollow galvanizedcones, the upper one projecting slightly through the top of the case, and the lower onedirectly underneath and placed in an inverted position. The lower cone, on account of its relative position to the neck and case, createsa natural draft in the ventilator flue, thus keeping up a continuous suction or flow ofair from the compartment b
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectroofing, bookyear1912
