The American house-carpenter; a treatise on the art of building, and the strength of materials (1867)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 177
ts, W and W, Suppose it be required 164 AMERICAN HOTJSE-OARPENTEK. to measure and compare the strains produced on the pieces,A B and A C. Construct the parallelogram of forces, e hfd,according to Art. 258. Then If will show the strain on A B,and h e the strain on A C. Bj comparing the figures, 5 d… … C Fig. 212. 270.—The Composition of Forces consists in ascertaining thedirection and amount of one force, which shall be just capableof balancing two or more given forces, acting in differentdirections. This is only the reverse of the resolution of forces,and the two are founded on one and the same…
Carpentry · Architecture
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