Hicks' Builders' guide, comprising an easy, practical system of estimating material and labor for carpenters, contractors and builders (1907)
Hicks, I. P. (Isaac Perry), b. 1856 · New York, David Williams company · leaf 130
The jacks from K J to valleyO T are the jacks in the main roof. The jacks fromO S to the valley O T are the jacks on the left side ofthe corner gable. The valley T P on the right sideof corner gable is but little longer than the commonrafter on corner gable, and runs so nearly straightwith the… … Fig. 90.—Diagram Showing Starting Point of Valley BetweenGables Joining Diagonally. shown. Draw the jacks from the valley G P to themain plate, which will give the length and cut of thesame. The down bevel of the jacks will be the sameas that of the common rafter. It is natural for one to think the…
Carpentry · Building
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![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-127-350.webp)
