Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 295
es forming the second ring. The con-ventional view (Fig. 883), showing part of theribs, the wedges, and the method of support-ing, will make the construction clear. Eachrib is built up of two thicknesses of 11-in. Centering for Barrel Vaulting. The isometrical view (Fig. 886) will conveya general… … Fig. 888. —Plan of Centering at Intersection of Vaults : C, Plan of Intermediate Principal,or Rib. D, Elevation of Same. E, True Form of Half Diagonal Principal. F, Develop-ment of Lagging. boards from 1 in. to 1J in. thick, accordingto the weight to be supported, nailed to-gether in the usual…
Carpentry · Joinery
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