lever escapement


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lever escapement

[′lev·ər is‚kāp·mənt]
(horology)
A clock movement in which the balance wheel is connected to the escapement by a lever attached to a roller; the wheel swings through a much larger angle than does a pendulum.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
This state-of-the-art timepiece, made by Joseph Emery of Charing Cross around 1797, has the revolutionary lever escapement that is the foundation of every mechanical watch to this day.
Currently, the luxury watch industry seems to be staging an unofficial race to invent the most precise replacement for the ubiquitous Swiss lever escapement, which has remained virtually unchanged in mechanical movements for almost 200 years.
He was the only watchmaker ever to have received a CBE and an MBE for his services to horology and the inventor of the revolutionary Daniels "coaxial escapement", the first new watch mechanism created since the invention of the lever escapement by Thomas Mudge in 1754.
The quarter-striking, eight-day movement has twin fusees, maintaining power and lever escapement. The finely chased dial is housed in a more unusual variation of the carriage clock case.