Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 523
ve at their centers a bearing for a pin of due proportionate size.The bearings are so made that one may turn, with respect to the other,about the axis of the pin through an angle of a very few degrees. 445. Arch of Two Hinges. The third of Equations 48 mustbe satisfied, which practically means that… … products basedon z shall equalthe summationof similar prod-ucts based on 2.But in this casethe special equi-librium polygonpasses throughthe abutmentpoints, and thereis no moment atthe abutment.Therefore, afterhaving found thepole distance ofthe special equi-librium polygon,we may draw thespecial…
Architecture · Building
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