F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
F16F7/00—Vibration-dampers; Shock-absorbers
F16F7/02—Vibration-dampers; Shock-absorbers with relatively-rotatable friction surfaces that are pressed together
F16F7/06—Vibration-dampers; Shock-absorbers with relatively-rotatable friction surfaces that are pressed together in a direction perpendicular or inclined to the axis of rotation
G—PHYSICS
G04—HOROLOGY
G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
G04B21/00—Indicating the time by acoustic means
G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
G04B21/022—Regular striking mechanisms giving the full hour, half hour or quarter hour with saw mechanism