Hatfield, Robert Griffith, 1815-1879. [from old catalog] · New York & London, Wiley and Putnam · leaf 154
. The place of the latter might be supplied by achain or rope. In Fig. 186, the foot of the rafter at A is sus-tained by two forces, the wall and the tie-beam, one perpendicularand the other horizontal: the direction of the straining force isindicated by the line, b a. The dividing line, h i,… … ing force is the weight of the materials, and the direction ofcourse vertical. Ascertain the dividing line at the several points,G, B, I, J, H and F. It will then appear that the force at G issustained hj A G and G E^ and the dividing line shows that theformer is stretched and the latter…
Carpentry · Architecture
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