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 106
n the two legs ofan angle. To describe the Scroll.Describe the spiral ABC DEFGH (Jig. 2), as before ; make A a equal to thebreadth of the rail; from I, as a centre, with the distance I a describe the arc a b, cutting/ B at b ; from the centre m, with the distance m b, describe the arc b c, cutting…
Stair building · Hand-railing
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