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The American house carpenter: a treatise upon architecture, cornices and mouldings, framing, doors, windows and stairs. Together with the most important principles of practical geometry (1852)

Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 156

An illustration from The American house carpenter: a treatise upon architecture, cornices and mouldings, framing, doors, windows and stairs. Together with the most important principles of practical geometry, 1852, leaf 156
de. 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,… … Fi?. 19-2. i?ig force is the weight of the materials, and the direction olcourse verticaL Ascertain the dividing line at the several points,G, B, I, J, Hnud F. It will then appear that the force at G issustained by A G and G E, and the dividing line shows that theformer is stretched and the latter…

Carpentry · Architecture

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