A treatise on the construction of staircases and handrails ... Preceded by some necessary problems in practical geometry; with the sections and coverings of prismatic solids (1820)
Nicholson, Peter, 1765-1844 · London, J. Taylor · leaf 40
nearly equal to the length of the arc A B C. Draw all the lines np perpendicularto GI; and make each respective line np equal to the corresponding np; through allthe points p draw the curve G L, which is that required. In Jigs. 1 and 2, the cylinder is cut obliquely in different positions. In figs.… … ■ _ r r//s/u ///<///
Stair building · Hand-railing
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
