Hatfield, Robert Griffith, 1815-1879. [from old catalog] · New York & London, Wiley and Putnam · leaf 234
ers. WINDING STAIRS. 376.—Winding stairs have steps tapering narrower at one endthan at the other. In some stairs, there are steps of parallel widthincorporated with tapering steps ; the former are then called^yer5and the latter winders. 377.— To describe a regular geometrical winding stairs.In… … Fig. 272. WJ a e, is given as the face of the first riser, and the point, j, for thelimit of the last. Make e i equal to 18 inches, and upon o, witho i for radius, describe the arc, ij; obtain the number of risersand of treads required to ascend to the floor at^, according to Art.361, and divide…
Carpentry · Architecture
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