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The Mechanics of Mechanical Watches and Clocks

Part of the History of Mechanism and Machine Science Book Series (volume 21)

DOI: 10.1007/978-3-642-29308-5

ISBN: 978-3-642-29307-8

Publisher: Springer Berlin Heidelberg - Springer Journals

Sep 22, 2012

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Introduction

Du, Ruxu; Xie, Longhan

Pages: 1 –4

[Keeping time is an essential activity for our daily life; and it is almost as old as human civilization. Throughout history, people have invented many ways to keep time, from analemmatic sundial to atomic clock. The invention of mechanical watch and clock is a milestone of technology advancement.]
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A Brief Review of the Mechanics of Watch and Clock

Du, Ruxu; Xie, Longhan

Pages: 5 –45

[According to literature, the first mechanical clock appeared in the middle of the fourteenth century. For more than 600 years, it had been worked on by many people, including Galileo, Hooke and Huygens. Needless to say, there have been many ingenious inventions that transcend time. This chapter...
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The Mechanics of the Swiss Lever Escapement

Du, Ruxu; Xie, Longhan

Pages: 47 –87

[As presented in the previous chapter, there have been many different kinds of escapements. Though, at least 98% of the commercial mechanical watches today use the Swiss lever escapement. In this chapter, the Swiss lever escapement is studied in detail. Its working principle is illustrated and...
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The Mechanics of the Spiral Spring

Du, Ruxu; Xie, Longhan

Pages: 89 –113

[When working with the English watch master Thomas Thompin in 1678, Robert Hook (1635–1703) observed that when an elastic body is subjected to stress, its dimension or shape changes in proportion to the applied stress over a range of stresses. On the basis of his experiments with springs,...
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Automatic Winding Device

Du, Ruxu; Xie, Longhan

Pages: 115 –141

[The automatic winding device (often called the automatic device in the watch and clock industry) is another fascinating device that is found only in the mechanical watch movement. Its first appearance can be dated back to 1770. In this chapter, we discussed two types of automatic winding device:...
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Gear and Power Transmission

Du, Ruxu; Xie, Longhan

Pages: 143 –169

[The gear is a symbol of engineering. Dating back to 100 B.C., the Greeks already had a good understanding of the gear (Wikipedia 2002). The gears are used to transmit motion and power. There are many kinds of gears: spur gears, helical gears, bevel gears, hypoid gears, crown gears, worm gears,...
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Concluding Remarks

Du, Ruxu; Xie, Longhan

Pages: 171 –173

[Mechanical watches and clocks are arguably the most complex of “pure” mechanical devices. Making a mechanical watch involves the following aspects: (a) design, (b) design analysis, (c) materials and processing (d) manufacturing, (e) assembly and (f) quality control. This monograph covers only a...

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