locking plate

noun

, Horology.

1. a narrow wheel geared to a striking train or other mechanism and having a notched rim engaging with another mechanism permitting it to rotate through a specific arc.

Word History and Origins

Origin of locking plate¹

First recorded in 1875–80

Example Sentences

The chief forms are Rack, and Locking-plate, or Count-wheel.

From Project Gutenberg

Wheel, CountThe wheel carrying the locking-plate in a striking mechanism.

From Project Gutenberg

It strikes the hours, only, by the old count wheel or locking plate method.

From Project Gutenberg