Cyclopedia of architecture, carpentry, and building; a general reference work .. (1912)
American School (Lansing, Ill.) · Chicago, American school of correspondence · leaf 378
309 46 STAIR-BUILDING … Joint Illustrating PlaneInclined in One DirectionOnly. this case, of a square prism), the section being the assumed incHned plane whereon the wreath rests in its ascent from a to h. The joint at h, if made square to the tangent m, will be a true, square butt-joint; so also will be the joint at a,…
Architecture · Building
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