Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 273
will consti-tute the curves of the mould. The major is to be drawn square to the minor, as shown. Place,from point 3, the circle shown on the minor, at the same distance asthe circle in the plan is fixed from the point o. The diameter Riser Fig. 124. Arrangement of Risers Around Well-Hole with… … Fig. 125. AiTangement of Risers around Well-Hole, with Risers Spaced Full Width of Tread. upon the long edge of the bevel, is equal to | the width of the mould, andis the hypotenuse of a right-angled triangle whose base is ^ the width ofthe rail. By placing this dimension on each side of n, as…
Architecture · Building · Carpentry
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