Releasing or locking the regular stroke, e.g. for silence during the night

Full Title

Indicating the time by acoustic means > Regular striking mechanisms giving the full hour, half hour, or quarter hour > Releasing or locking the regular stroke, e.g. for silence during the night

Classification Context

Section:

PHYSICS

Class:

HOROLOGY

Subclass:

MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS