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 164
r to 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 stiffest beam thatcan be cut from a cylinder. Let d a c b, (Fig. 199,) be the sec-tion, and e the centre, of a given cylinder. Draw the diameter,a b ; upon a and b, with the radius of the section, describe thearcs, d e and e c ; join d and a, a…
Carpentry · Architecture
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from A Dictionary of science, literature, and art [electronic resource]: comprising the history, description, and scientific principles of every branch of human knowledge; with the derivation and definition of all the terms in general use (1844)](https://img.insideoutlibrary.com/img/200/ia-62523189.5956.emory.edu-593-171.webp)
![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-45-26.webp)
