Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 385
ess of abutment in feet.Arches fail by the crown falling inward, and thrusting outwartlthe lower portions, presenting five points of rupture, one at the key-stone, one on each side of it which limit the portions that fall inward,and one on each side near the springing lines which limit the… … to ID *^ wOP. aOao ao CIc3 iS - o •^ .-3 fa K o -iso « MH < oz ta L^ ^ *^ ^ 2 a g doo o. 3 a3 c/3 -^^9f~ :e-2P*- ^
Architecture · Building · Carpentry
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