lever escapement

noun

, Horology.

1. an escapement in which a pivoted lever, made to oscillate by the escape wheel, engages a balance staff and causes it to oscillate.

Word History and Origins

Origin of lever escapement¹

First recorded in 1830–40

Example Sentences

It is a challenge that has fascinated watchmakers since the 18th century, when the traditional lever escapement first appeared.

From New York Times

Clocks and Watches:—A short history of timepieces—The construction of timepieces—The driving power—The escapement—Compensating pendulums—The spring balance—The cylinder escapement—The lever escapement—Compensated balance-wheels—Keyless winding mechanism for watches—The hour hand train.

From Project Gutenberg

Clocks and Watches:—A short history of timepieces—The construction of timepieces—The driving power—The escapement—Compensating pendulums—The spring balance—The cylinder escapement—The lever escapement—Compensated balance-wheels—Keyless winding mechanism for watches—The hour hand train.

From Project Gutenberg

He was a watchmaker who, in the early part of this century, did much to perfect the lever escapement by good work and nice proportion, besides inventing the two pin variety.

From Project Gutenberg

The correct delineation of the lever escapement is a very important matter.

From Project Gutenberg