[Gould, Lucius D.], b. 1814. [from old catalog] · New York, W.T. Comstock · leaf 81
rom B to 2 and 3equal N H ; place pins in the points 2 and 3, and by the useof a thread or cord and pencil, describe the centre curve. To find the length of curve and point of contact : Set upfrom C to D equal L J, Fig. i ; set off from D to R equalN E, Fig. I ; square up from D to S equal J F,… … STAIR BUILDING. 77 PLATE XXXVI Exhibits a plan of stairs at the starting of second flight. To draw the elevation of the handrail : Place the stepA B ; set up from the floor to centre of level rail, equal halfthe riser, and the rise of the rail from the riser to the pointto bore for.the baluster ;…
Stair building
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