Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 382
d be similar to Fig. 90. To find the correct angle for the tangents of the face-mould,draw the line m from d, square to the inclined line of the tangentsc d; revolve the bottom inclined tangent c to cut line tn in n, wherethe joint is shown fixed; and from this point draw the line c to w.… … JointFig. 89. Finding Angie between Tangents. 311 48 STAIR-BUILDING
Architecture · Building
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