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The modern clock; a study of time keeping mechanism; its construction, regulation, and repair (1905)

Goodrich, Ward L · Chicago, Hazlitt & Walker · leaf 147

An illustration from The modern clock; a study of time keeping mechanism; its construction, regulation, and repair, 1905, leaf 147
ecoil w^ith such a depthing? What arcwill the pallets give the pendulum ? Why should the centerdistance always be the same (seven tenths of the diameterof the wheel) whether the escapement embraces eight, or ten,or six teeth ? As a matter of fact it should not be the same.We could ask a few more… … Fig. 42. Recoil Escapement with Curved Lifting Planes. Let us analyze these drawings. A little study of Figs.41, 42 and 43 will show that there is really only one point ofdifference between them and Fig. 32, which shows the ele- THE MODERN CLOCK. H5 ments of the Graham, or dead beat. The sole…

Clocks and watches

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