[Gould, Lucius D.], b. 1814. [from old catalog] · New York, W.T. Comstock · leaf 13
C as radius, describearcs cutting each other in F ; join H F and F J extendedfor the direction required. To find the vertical angles to bevel the plank : Fit a pieceto the tangents R A and R D ; draw the pitch C B on theside R A, and the pitch C S on the side R D. Cut to themarks and apply the… … STAIR BUILDING. PLATE III Exhibits the plan for a platform stairs, where the radius ofcircle for the centre of rail equals half the width of step. To draw the elevation of the handrail, Fig. 2 : Square upfrom D to A and B equal two (2) risers ; place the pitch-board at A and B ; draw the common…
Stair building
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