[Gould, Lucius D.], b. 1814. [from old catalog] · New York, W.T. Comstock · leaf 55
points describe theoutside and inside curves. To draw the mould. Fig. 4 : Set off from B to A and fromB to C equal C D and D B, Fig. 2 ; the dotted curves fromB cuts the major axis in the points for pins to describe thecentre curve. To find the angles to bevel the plank for the wreath, Fig.3 : Fit… … STAIR BUILDING. 51 PLATE XXIV Exhibits a plan of hajidrail for quarter platform stairs atthe landing. To draw the elevation : Set up from A to P equal oneriser, from D to R equal three risers, and from R to S equalhalf the riser, plus the rise of the common pitch from theriser to the point to bore…
Stair building
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