Hatfield, Robert Griffith, 1815-1879. [from old catalog] · New York & London, Wiley and Putnam · leaf 162
support a ton weight, FRAMING. 147 or 2240 pounds, the beam being inclined so that, its length being20 feet, its horizontal distance between the points of support willbe 16 feet? 2240, multiplied by 20, gives 44,800, which, multi-plied by 16, gives 716,800 ; and this again, by the decimal,… … Fig. 199. 264.— To ascertain the scantling of the stiff est beam thatcan he cut from a cylinder. Let d a c h, {Fig. 199,) be the sec-tion, and e the centre, of a given cylinder. Draw the diameter,ah ; upon a and 6, with the radius of the section, describe thearcs, d e and e c ; join d and a, a and…
Carpentry · Architecture
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