Cyclopedia of architecture, carpentry, and building; a general reference work .. (1912)
American School (Lansing, Ill.) · Chicago, American school of correspondence · leaf 387
find the true angle betweenthe tangents as it is required on the face-mould to square the iointsof the wreath at h. In Fig. 89 the same pitch is shown given to tangent m as in Fig.94; and in both figures the pitch is shown to be the same as that overand above the upper connecting tangents c and d,… … Fig. 95. Well-Hole Connecting Two Flights, with Two Wreath-Pieces, Each Couc/uiiiiug Portions of Unequal Pitch. 315 52 STAIR-BUILDING upon the pitch-line of the tangents over the well-hole. The anglesbetween the tangents of the face-moulds have been found in thisfigure by the same method as in…
Architecture · Building
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