The tinman's manual and builder's and mechanic's handbook : designed for tinmen, japanners, coppersmiths, engineers ... with compositions and receipts for other useful and important purposes in the practical arts (1861)
Butts, I. R. (Isaac Ridler), 1795-1882 · Boston : I.R. Butts & Co. · leaf 33
straight line joining any two points of the circum-ference. 5. An Arc is any part of the circumference. 6. A Semicircle is half the circumference cut off by a diameter. 7. A Segment is any portion of a circle cut off by a chord. 8. A Sector is a part of a circle cut off by two radii. 28 FLARING… … From a point G as a centre, describe a circle AB equal to the largecircumference ; with the point F as a centre, the depth of the vessel,describe a circle DE equal to the small circumference ; then draw thelines Gil and KS tangent to the circles AB and DE ; from the pointof intersection 0 as a…
![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-259-164.webp)
