Fig. 34. Drawing escape wheel to fit a tracing from a pallet fork. THE MODERN CLOCK. 121 closer, mount in the rounding up tool and lap off the cutplanes until they are smooth and stand at the proper angle;then polish. This is done quickly. Can we work the rule backwards? Suppose we get aclock in…
Clocks and watches
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![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-256-161.webp)
