Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 262
Fig. 218. ao6 SHEET METAL \Yf)HK 177 e(|ual to the pitrli u h. In Fig. LlU is sliowii liow this (»|>ciiing is ol>-tuineil hy the use of u few nails, a string, ami a |)en(il. which tlie rfxjferwill always have handy. First tiraw the line A H rej)re.senting the slunt of the roof, andthen make… … shown. ; where this line intersectsdie n>of line, I, and t h epoints where I) F and ( Fintersect A H. (■ and II re-spectively. Through I drawK L at right angles to .\ H,making K I and I L eache«|nal to the half diameterof the pipe. Having estali-lished the minor axis K Land the major axis (1…
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-123-338.webp)
