GB683663A - Acoustic warning devices - Google Patents

Acoustic warning devices

Info

Publication number
GB683663A
GB683663A GB2600/51A GB260051A GB683663A GB 683663 A GB683663 A GB 683663A GB 2600/51 A GB2600/51 A GB 2600/51A GB 260051 A GB260051 A GB 260051A GB 683663 A GB683663 A GB 683663A
Authority
GB
United Kingdom
Prior art keywords
striker
gong
stop
hit
feb
Prior art date
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.)
Expired
Application number
GB2600/51A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Forges et Ateliers de Constructions Electriques de Jeumont SA
Original Assignee
Forges et Ateliers de Constructions Electriques de Jeumont SA
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 filed by Forges et Ateliers de Constructions Electriques de Jeumont SA filed Critical Forges et Ateliers de Constructions Electriques de Jeumont SA
Publication of GB683663A publication Critical patent/GB683663A/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

683,663. Electric bells. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Feb. 2, 1951 [Feb. 8, 1950], No. 2600/51. Class 13. The striker 9 of a single stroke bell is connected to a ring 7 mounted on a core 1 so that when A.C. is passed through a coil 2 the bell gong is hit by the striker. A spring- loaded washer 13 mounted on the striker 9 co-operates with a stop on the casing to prevent the striker remaining in contact with the gong. The casing may be flame-proof and gas tight for use in mines. In a modification the striker is resiliently mounted and co-operates with a fixed stop, the mounting allowing the striker to pivot round the stop to hit the gong but preventing it from remaining in contact with the gong.
GB2600/51A 1950-02-08 1951-02-02 Acoustic warning devices Expired GB683663A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR683663X 1950-02-08

Publications (1)

Publication Number Publication Date
GB683663A true GB683663A (en) 1952-12-03

Family

ID=9024010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2600/51A Expired GB683663A (en) 1950-02-08 1951-02-02 Acoustic warning devices

Country Status (1)

Country Link
GB (1) GB683663A (en)

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