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Publication of BE504444ApublicationCriticalpatent/BE504444A/xx
G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
G10K1/062—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated
G10K1/063—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated the sounding member being a bell
G10K1/064—Operating or striking mechanisms therefor
G—PHYSICS
G04—HOROLOGY
G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
G04C13/00—Driving mechanisms for clocks by primary clocks
H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit