Cyclopedia of architecture, carpentry, and building; a general reference work .. (1912)
American School (Lansing, Ill.) · Chicago, American school of correspondence · leaf 368
y is to saw the string with a finesaw, across the face, making parallel grooves.This method of bending is called kerfing,above referred to. The kerfs or groovesmust be cut parallel to the lines of the risers, so as to be vertical whenthe string is in place. This method, however—handy though it… … I aSAseyes une Fig. 58. Plan of Circular Stair and Layout of Wall Stringfor Same. several ways of doing this. In one, comparatively narrow pieces arecut to the required curve or to portions of it, and are fastened together,edge to edge, with glue and screws, until the necessary width isobtained…
Architecture · Building
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