Haswell, Charles Haynes, 1809- [from old catalog] · New York, Harper & brothers · leaf 340
e angle of the cord, at the point of suspension of the weight, is equal to theweight. Example.—What weight will be sustained by a power of 5 lbs., with an obliquemovable pulley, Fig. 5, having an angle A e D of 30° ? 5X2X.96533 = 9.6593 lbs. = twice the power X cos. 15°. When the Direction of the… … CRANES. When the Post is Supported at both the Top and Foot. The usual form of a Crane is that of a right-angled triangle, thethree sides being the post or upright, the jib or arm, and the stay orstrut, which is the hypothenuse of the triangle. When the jib and the post are equal in length, and the…
Engineering · Mechanical engineering
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