Builders' architectural drawing self-taught : containing descriptions of drawing instruments and accessories, with rules for using them, and hints as to their care and management ... (1917)
Hodgson, Fred. T. (Frederick Thomas), 1836-1919, Frederick J. Drake & Co · Chicago, F. J. Drake · leaf 159
en arches are formed by having them twoor more bricks deep, or they may be rough andturned in half-brick rings, 4^ inches thick, asshown at JiJi In Fig. 140. In arches of quickcurve, with not more than 2 or 3 feet radius,this method is absolutely necessary to prevent 140 ARCHITECTURAL DRAWING SELF… … Fig. 140. the mortar joints in this are much wider at thetop than those of the portion hh, built in ringshalf a brick in thickness. The line of joints inboth these examples are radial, all being drawnfrom the center point. The most common—so-called arch—is what istermed gauged straight arches, and…
Architectural drawing · Architecture, Domestic
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