. An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth. ie-beam andthe king-post were stop-chamfered ; and the strain of thepurlines upon the principal rafter was counteracted by anearly upright strut from the tie-beam. This systemlelt the principal rafter with a false bearing, if the wallswere not extremely thick in proportion to the width ofthe apartment which they enclosed. As a remedy, thelate Romanesque builders tenoned the purline into thej)rincipals, and, moreover, laid it with its side toth
. An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth. ie-beam andthe king-post were stop-chamfered ; and the strain of thepurlines upon the principal rafter was counteracted by anearly upright strut from the tie-beam. This systemlelt the principal rafter with a false bearing, if the wallswere not extremely thick in proportion to the width ofthe apartment which they enclosed. As a remedy, thelate Romanesque builders tenoned the purline into thej)rincipals, and, moreover, laid it with its side tothe rafters, in order that the backs of the commonrafters should be Hush with those of the principal rafters(similarly to Ji</. 692.). The next step was to putjnoper struts from the foot of the king-post. At thepresent day the purline is placed on edge for economy ofmaterial. fK 06 2052/1 In the north of France there was difficulty in roofing over the vaulting : eitherthe main walls had to be carried as high as the ridge-rib, or else the frame of the roofhad to be similar in iirauiple to that shown in Jit;. 7016. Experience proved that the. ft. in 7 ilates. 1 3 8 1 7 6 ,, 1 0 5 „ nearly 0 11 These
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