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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 221

An illustration from The modern clock; a study of time keeping mechanism; its construction, regulation, and repair, 1905, leaf 221
with reference to that of the wheel would not beabsolutely the same; but the ratio of the teeth being thesame, the same ratio of motion obtains in practice, andthere is necessarily bad w^orking of the teeth with theleaves. 2l8 THE MODERN CLOCK. We will observe what passes in each of these cases,… … ^ \ \ J ^ ^ ^—^ ^ iL A > / ^^ Fig. 67 Fig. 6y represents gearing of which the wheel and pinionare well proportioned and at the proper distance from eachother. Its movement is smooth, but it has little drop ornone at all. By examining the teeth h, h, of the wheel, itis seen that they are larger…

Clocks and watches

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