Builders' architectural drawing self-taught : containing descriptions of drawing instruments and accessories, with rules for using them, and hints as to their care and management ... (1917)
Hodgson, Fred. T. (Frederick Thomas), 1836-1919, Frederick J. Drake & Co · Chicago, F. J. Drake · leaf 153
elliptical arch shown at Fig. 129, we must pro-ceed as follows: Let ZZ be the foci, and B apoint on the Intrados where a joint is required;from ZZ draw lines to B, bisect the angle at Bby a line drawn through the intersecting arcsD produced for the joint to F. Joints at i and2 are found in the same… … voussoirs near the springing line of the arch ar^thus increased in size for greater strength. The diagram shown at Fig. 130 shows a lancet S~E
Architectural drawing · Architecture, Domestic
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
