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 36
rd side. This slanting linewill be at 45 degrees for the 45-degree triangle,and at 30 or 60 degrees for the other triangleaccording to the side of the triangle which isplaced against the T-square. Lines making with the edge of the T-squareangles of 15 degrees or 75 degrees, may be MECHANICAL… … Fig, 21. Drawing Parallel Lines in Any Desired Direction. In Fig. 21, AB is an inclined line, and otherlines are to be drawn parallel to AB and aboveit. Place one triangle, as C, with one edge coin-ciding with line AB; and place another triangle,as D, against another edge of C as shown. Now,if…
Architecture · Building
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
