. Journal. pplied by Mr. T. W. Helliwell. The patent glazing bar which has been adopted for thelouvre roof at Kings Cross is of rolled iron, but may also bemade in steel. It was designed chiefly with a view to meetingthe requirements of the engineer as regards strength for a longbearing, and for forming a constructive part of the roof. Thisnecessitated a special section, which presented great difficultiesin rolling. The zinc bar referred to by iur. Eead is no newdeparture, but has been employed from the first. The Olympiaroof and many others are so glazed. In cases where the zincbar is require
. Journal. pplied by Mr. T. W. Helliwell. The patent glazing bar which has been adopted for thelouvre roof at Kings Cross is of rolled iron, but may also bemade in steel. It was designed chiefly with a view to meetingthe requirements of the engineer as regards strength for a longbearing, and for forming a constructive part of the roof. Thisnecessitated a special section, which presented great difficultiesin rolling. The zinc bar referred to by iur. Eead is no newdeparture, but has been employed from the first. The Olympiaroof and many others are so glazed. In cases where the zincbar is required to be in long lengths (say, over 6 feet) it isstrengthened with a f11011 core, or, if preferred, it can bemounted on a wooden sash bar. Prices vary according to design of roof and the area to becovered, but are approximately from Is. to Is. 3d. per superficialfoot, for £-inch rolled or rough-cast plate-glass and bars, &c,including fixing. CNR. Kings Cross Sta noN . Renewal of Roof over Departure Side. Transverse Section as erected 1850-2 Bancroft F A F N Spon, London I > /ml L Plate 2
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Keywords: ., bookcentury1800, bookdecade186, bookpublisherlondon, bookyear1861
