Classifications

• • G—PHYSICS
  • G10—MUSICAL INSTRUMENTS; ACOUSTICS
  • 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
  • G10K1/065—Operating or striking mechanisms therefor for timed or repeated operation
• • G—PHYSICS
  • G04—HOROLOGY
  • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
  • G04C21/00—Producing acoustic time signals by electrical means
  • G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
  • G04C21/20—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm
  • G04C21/26—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm put into action by the vibrations caused by the operation of a mechanical alarm work

Landscapes

• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Acoustics & Sound (AREA)
• Multimedia (AREA)
• General Physics & Mathematics (AREA)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=9070962

Family Applications (1)

Country Status (1)

• 1971
  • 1971-01-27 FR FR7102672A patent/FR2123670A5/fr not_active Expired

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