. Canadian engineer. them capable of enduring the strain oftransportation and-placing. Each block has in its uppersurface a groove, in which is lodged the horizontal rein-forcing rod, forming a bond sunk in the joint. Fig. 7.—Foundations with Forms Removed. The square end of the block is set in the headof the block adjoining ; that is to say, the portionwhich constitutes the rib; and as this method ofplacing allows of considerable latitude in the set-ting of the blocks, it permits a variation in thediameter of each course, thus obtaining the conicalshape so indispensable to a favorable appeara
. Canadian engineer. them capable of enduring the strain oftransportation and-placing. Each block has in its uppersurface a groove, in which is lodged the horizontal rein-forcing rod, forming a bond sunk in the joint. Fig. 7.—Foundations with Forms Removed. The square end of the block is set in the headof the block adjoining ; that is to say, the portionwhich constitutes the rib; and as this method ofplacing allows of considerable latitude in the set-ting of the blocks, it permits a variation in thediameter of each course, thus obtaining the conicalshape so indispensable to a favorable appearance. The operation of erecting is effected veryrapidly; masons working in the interior of thechimney, receive their blocks ready to lay, put themin place, mortar the 10 inches in the interior of therib, prepare the joints ftor the new blocks, and con-tinue very rapidly to lay chimneys are, in general, terminated at their summits by one or two bands of specially constructed bl(K-ks, and a cast iron Fig. 8.—Baclifillin^ Arouiid 1 .,Havward Bucket. with 34^ THE CANADIAN ENGINEER Voluiiie 30.
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidcanadianengineer30toro
