FR628639A - Sonnerie électrique fonctionnant par action d'un électro-aimant dans lequel circule du courant alternatif, sur un marteau vibrant, sans intervention de rupture de courant
- Google Patents
Sonnerie électrique fonctionnant par action d'un électro-aimant dans lequel circule du courant alternatif, sur un marteau vibrant, sans intervention de rupture de courant
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of FR628639ApublicationCriticalpatent/FR628639A/fr
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
Landscapes
Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Acoustics & Sound
(AREA)
Multimedia
(AREA)
FR628639D1927-02-071927-02-07Sonnerie électrique fonctionnant par action d'un électro-aimant dans lequel circule du courant alternatif, sur un marteau vibrant, sans intervention de rupture de courant
ExpiredFR628639A
(fr)
Sonnerie électrique fonctionnant par action d'un électro-aimant dans lequel circule du courant alternatif, sur un marteau vibrant, sans intervention de rupture de courant
Sonnerie électrique fonctionnant par action d'un électro-aimant dans lequel circule du courant alternatif, sur un marteau vibrant, sans intervention de rupture de courant
Disposición para ajustar a distancia objetos, en la cual variando la frecuencia de corrientes eléctricas se acciona con frecuencia propia diversa una serie de órganos mecánicos oscilantes y además un índice puede desplazarse a lo largo de estos órganos.