Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 209
1,410 pounds. The member do being in compression, exerts a push on thejoint (3) and the member de being in tension, exerts a pull on thejoint (1). Next indicate this push and pull by arrows. We might now draw the polygon for any one of the remain-ing joints, for there are at each but two unknown…
Architecture · Building · Carpentry
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