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The Inner Workings of a Watch - A Simple Guide for Enthusiasts of Clockwork Mechanisms
The Inner Workings of a Watch - A Simple Guide for Enthusiasts of Clockwork Mechanisms
The Inner Workings of a Watch - A Simple Guide for Enthusiasts of Clockwork Mechanisms
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The Inner Workings of a Watch - A Simple Guide for Enthusiasts of Clockwork Mechanisms

By Anon

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This antiquarian book contains an detailed and accessible guide to the inner working of watches, being a simple guide for enthusiasts of clockwork mechanisms. Written in clear, plain language and full of simple descriptions and comprehensive explanations, this text is ideal for anyone with an interest in the inner workings of clocks, and it would make for a great addition to any personal library. Although old, the information contained within the pages of this book is timeless, and will be of considerable utility to the modern reader. The chapters of this book include: A history of clocks and watches, The parts of a watch, The compensating balance & hairspring, The lever escapement, and The cylinder escapement. We are republishing this timeless text now in an affordable, modern edition complete with a specially commissioned new introduction on the history of clocks and watches.
LanguageEnglish
Release dateApr 16, 2013
ISBN9781447490746
The Inner Workings of a Watch - A Simple Guide for Enthusiasts of Clockwork Mechanisms

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    The Inner Workings of a Watch - A Simple Guide for Enthusiasts of Clockwork Mechanisms - Anon

    THE PARTS OF A WATCH

    WITH high-class watches, one can expect a very close rate of time under both extreme and normal conditions, but the inexpensive watch, by reason of its condition, cannot be expected to keep time within several seconds a day. A keen student, however, will soon be able to classify the various grades and execute work accordingly. Any new parts should be faithfully copied, if it is not possible to obtain standard material, in order to maintain the standard of the watch. Good work always reflects credit on the repairer.

    Fig. 43.—A modern Swiss lever movement of the popular 10 1/2 ligne size (shown greatly enlarged).

    Special Names for Parts.—The first step is to become thoroughly acquainted with the numerous components of an ordinary watch. Many parts have special names, and to be conversant with them will often save considerable time when ordering new material. The enlarged illustration on the opposite page depicts a modern Swiss Lever movement of the popular 10 1/2-ligne size.

    Lignes and sizes are the measurements usually used to determine the size of a movement. In Fig. 44 are shown the various diameters of a movement. Of the two main dimensions that of the largest diameter is usually taken, and the most common measurement is the ligne. As 1 ligne equals approximately 3/32 in. a 10 1/2-ligne watch measures 15/16 in. which is short of an inch. The American industry favours the size as a unit of measurement. Size O equals 1 5/30 in. Each size above size O increases by 1/30 in., and a size below O decreases by 1/30 in. 10 1/2-ligne movements are to be found in both gentlemen’s and ladies’ wrist-watches. Until a few years ago this size was almost universal in ladies’ watches, and the cheaper watches still favour this size.

    Fig. 44.—The various diameters of a movement.

    Fig. 45.—Three different types of screw used in the construction of a watch.

    Number of Screws.—Some watches have as many as 150 separate pieces, and of this large number there are at least 35 screws. Fig. 45 shows three different types of screw: the cheese-headed plate screw, the flat-headed case screw, and the small jewel screw with countersunk head. The main frame of the movement consists of two plates: the bottom or dial plate and the top or back plate, which is visible when the case is opened. The modern back plate has changed from a circular plate into a number of sections usually called bars or bridges, thereby rendering the works easily accessible.

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