Radford's cyclopedia of construction; carpentry, building and architecture. Based on the practical experience of a large staff of experts in actual constrcution work (1909)
Johnson, Alfred Sidney, 1860-, Radford, William A., 1865- · Chicago Radford Architectural Co · leaf 37
e AB; and placeanother triangle, as D, in contact with the lowerleft-hand edge, as shown. Next revolve the tri-angle C around, as shown by the arrows, into the 18 MECHANICAL DRAFTING position EFG; then the long edge in the posi-tion EF is perpendicular to the line AB. Otherlines perpendicular to AB… … rig. 22. Drawing Lines Perpendicular to a Given Inclined Line. 30. In connection with the T-square, it willbe well for the beginner to remember the fol-lowing Donts: Dont change T-squares while making adrawing. If this must unavoidably be done atany time, see first if lines can be drawn withthe…
Architecture · Building
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
