GB1386731A - Ringing device - Google Patents

Ringing device

Info

Publication number
GB1386731A
GB1386731A GB169373A GB169373A GB1386731A GB 1386731 A GB1386731 A GB 1386731A GB 169373 A GB169373 A GB 169373A GB 169373 A GB169373 A GB 169373A GB 1386731 A GB1386731 A GB 1386731A
Authority
GB
United Kingdom
Prior art keywords
armature
permanent magnet
yoke
jan
bias
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
GB169373A
Other languages
English (en)
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.)
Nederlandsche Apparatenfabriek NEDAP NV
Original Assignee
Nederlandsche Apparatenfabriek NEDAP NV
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 Nederlandsche Apparatenfabriek NEDAP NV filed Critical Nederlandsche Apparatenfabriek NEDAP NV
Publication of GB1386731A publication Critical patent/GB1386731A/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
    • G10K1/064—Operating or striking mechanisms therefor
    • G10K1/0645—Operating or striking mechanisms therefor provided with loudness adjustment

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromagnets (AREA)
  • Percussion Or Vibration Massage (AREA)
GB169373A 1972-01-14 1973-01-12 Ringing device Expired GB1386731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7200599A NL7200599A (enExample) 1972-01-14 1972-01-14

Publications (1)

Publication Number Publication Date
GB1386731A true GB1386731A (en) 1975-03-12

Family

ID=19815167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB169373A Expired GB1386731A (en) 1972-01-14 1973-01-12 Ringing device

Country Status (5)

Country Link
BE (1) BE793927A (enExample)
DE (1) DE2301040A1 (enExample)
FR (1) FR2168104A5 (enExample)
GB (1) GB1386731A (enExample)
NL (1) NL7200599A (enExample)

Also Published As

Publication number Publication date
BE793927A (fr) 1973-07-11
FR2168104A5 (enExample) 1973-08-24
DE2301040A1 (de) 1973-07-19
NL7200599A (enExample) 1973-07-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees