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Analysis of the Lever Escapement, by H. R. Playtner
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Title: An Analysis of the Lever Escapement
Author: H. R. Playtner
Release Date: June 30, 2007 [EBook #21978]
Language: English
Character set encoding: ISO-8859-1
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[Illustration: THOMAS MUDGE
The first Horologist who successfully applied the Detached Lever Escapement to Watches.
Born 1715--Died 1794.]
AN ANALYSIS
OF THE
LEVER ESCAPEMENT
BY H. R. PLAYTNER.
A LECTURE DELIVERED BEFORE THE CANADIAN WATCHMAKERS' AND RETAIL JEWELERS' ASSOCIATION.
ILLUSTRATED.
CHICAGO:
HAZLITT & WALKER, PUBLISHERS.
1910.
PREFACE.
Before entering upon our subject proper, we think it advisable to explain a few points, simple though they are, which might cause confusion to some readers. Our experience has shown us that as soon as we use the words "millimeter" and "degree," perplexity is the result. "What is a millimeter?" is propounded to us very often in the course of a year; nearly every new acquaintance is interested in having the metric system of measureme