. Cyclopedia of architecture, carpentry, and building; a general reference work ... face-mould,as here presented,will further helptoward an under-standing of the lay-out of face-mouldsas shown in Figs. 96 and 97. It will be observed that the pitch of the bottom rail is con-tinued from a to h, a condition caused by the necessity of jointing thewreath to the end of the straight rail at a, the joint being made squareto both the straight rail and the bottom tangent a. From h a line isdrawn to d, which is a fixed point determined by the number of risersin the well-hole. From point d, the
. Cyclopedia of architecture, carpentry, and building; a general reference work ... face-mould,as here presented,will further helptoward an under-standing of the lay-out of face-mouldsas shown in Figs. 96 and 97. It will be observed that the pitch of the bottom rail is con-tinued from a to h, a condition caused by the necessity of jointing thewreath to the end of the straight rail at a, the joint being made squareto both the straight rail and the bottom tangent a. From h a line isdrawn to d, which is a fixed point determined by the number of risersin the well-hole. From point d, the level tangent d 5 is drawn in linewith the level rail of the landing; thus the pitch-line of the tangentsover the well-hole is found, and, as was shown in the explanation ofFig. 95, the tangents as here presented will be those required on theface-mould to square the joints of the wreath. In Fig. 98 the tangents of the face-mould for the bottom wreathare shown to be a and h. To place tangent a in position on theface-mould, it is revolved, as shown by the arc, to m, cutting a line. Fig. 101. Newel Finding Angle between Tangents for SquaringJoints of Ramped Wreath. 319 56 STAIR-BUILDING
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