Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 433
r section Ij was desired to be square, whatmust the lencrth of each side be, to have an area similar to a ? In Fig. 11 is shown the illustration of an ordinary steel square,and the method is given of obtaining accurate diameters of pipes,round or square, without any computation whatever, the rule… … ^.iJ.I.I.I-.l.l.l.l.lil.l.lil.l.lil.l.llilII^Nl^^^IIIIlilIIlililililli I 2 3 4 5 6 7 6 9 10 II 12 13 14 15 16 17 16 19 20 21 22 23 24 Fig. 11. prepared. Let A represent a round or square pipe, 20 inches across,and E a round or square pipe 12 inches across; it is desired totake a branch from the…
Architecture · Building · Carpentry
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
