Abstract
To the makers and lovers of clocks this volume will be a welcome addition to their bookshelves. Though not intended to be a complete treatise on the subject, the author deals systematically with the materials, tools and mechanisms of clock-making and gives much excellent advice. The plates are a notable feature of the book, and though naturally most of them are devoted to various forms of clocks and clock cases, not the least interesting are those illustrating wheel-cutting machines, pinions and their collets, new and old screws, and the clock hands of various periods. There is one omission that should be pointed out. On p. 58, when dealing with compensation balances, it would have been well to explain that the necessity for compensation arises mainly through the change in the elasticity of the spring of the balance due to alteration in temperature, and not through the variation in the dimensions of the balance.
Clockmaking, Past and Present. With which is incorporated the more important portions of “Clocks, Watches and Bells,” by the late Lord Grimthorpe, relating to Turret Clocks and Gravity Escapements.
By G. F. C. Gordon. Pp. viii + 232 + 35 plates. (London: Crosby Lockwood and Son, 1925.) 16s. net.
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Clockmaking, Past and Present With which is incorporated the more important portions of “Clocks, Watches and Bells,” by the late Lord Grimthorpe, relating to Turret Clocks and Gravity Escapements . Nature 115, 418 (1925). https://doi.org/10.1038/115418b0
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DOI: https://doi.org/10.1038/115418b0