Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 500
a weight, W, be placed at the foot of one of thesuspension-rods. Now, if the construction consisted merely of the rafter C B,and the collar-beam C 0, resting against some fixed point, then the point Bwould support the whole downward pressure of the weight; but in consequenceof the connection of the… … Fig. 1141. Fig. 11^2. the pressure in the direction C A, and lu W the portion of the weight sup-ported on A. The same resolution obtains to determine the direction andamount of force exerted on a bridge-truss of any number of panels, by a weightplaced at any pointy of its length (Fig. 1142). In…
Mechanical drawing
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