A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 417
t may be solved a number ofproblems which would otherwise require extensive drawings,or tedious calculations. Fig. G5 shows the regular form ofthis instrument; the length of the blade ac \& always 24inches, and that of the tongue a b varies, in different squares. 86 CARPENTRY. 9 from 12 inches… … ?(? i|jo|7e|i ell 4 o|i 4 t|i €|i 4 ill I •le| ^1 I «l *l ^t^-^^ I ^-, ,tj,i1,i.iti.Li.itj.ij.itj.itj.tj.iti.iT/A
Architecture · Building
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