locking-plate

(lok’ing-plat), m. 1. Ina vehicle, the wear-iron or guard placed on the perch to prevent injury from the forward wheels in turning short; a rub-plate. Inagun-carriage it is a thin flat piece of iron nailed on the sides to prevent the wood from wearing away, and serving as a point of attachment for the locking-chain. 2. A nut-lock.—3. In a clock, the count-wheel or notched disk which controls the number of strokes of the striking mechanism.