locking plate EXAMPLES|WORD ORIGIN noun Horology. 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. Liberaldictionary.com
Origin of locking plate First recorded in 1875–80 Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 Examples from the Web for locking plate Historical Examples of locking plate
The chief forms are Rack, and Locking-plate, or Count-wheel.
Harry Chase Brearley
Wheel, CountThe wheel carrying the locking-plate in a striking mechanism.
Harry Chase Brearley