GB834995A - Improvements in and relating to magneto bells - Google Patents

Improvements in and relating to magneto bells

Info

Publication number
GB834995A
GB834995A GB3404158A GB3404158A GB834995A GB 834995 A GB834995 A GB 834995A GB 3404158 A GB3404158 A GB 3404158A GB 3404158 A GB3404158 A GB 3404158A GB 834995 A GB834995 A GB 834995A
Authority
GB
United Kingdom
Prior art keywords
central limb
yoke
magneto
bells
electromagnets
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
GB3404158A
Inventor
Harry Jack Melton
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.)
Ericsson Telephones Ltd
Original Assignee
Ericsson Telephones Ltd
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 Ericsson Telephones Ltd filed Critical Ericsson Telephones Ltd
Priority to GB3404158A priority Critical patent/GB834995A/en
Publication of GB834995A publication Critical patent/GB834995A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

834,995. Electric bells. ERICSSON TELEPHONES Ltd. Oct. 24, 1958, No. 34041/58. Class 13. A magneto bell has an E-shaped magnet system comprising two electromagnets 1 supported by a yoke 5 and -a central limb 19 arranged between the electromagnets, the central limb being polarized by a permanent magnet 10 clamped to the central limb and to the yoke 5. As shown, the permanent magnet 10 is clamped between the central limb 19 and a projecting arm 7 on the yoke 5 by means of screws 9 and a non-magnetic channel-section member 12. The screws 9 pass through slots 8 in the arm 7, thereby permitting adjustment of the air gap between the pole-pieces 4 and the armature 15 which is pivoted on the hooked end of the central limb 19.
GB3404158A 1958-10-24 1958-10-24 Improvements in and relating to magneto bells Expired GB834995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3404158A GB834995A (en) 1958-10-24 1958-10-24 Improvements in and relating to magneto bells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3404158A GB834995A (en) 1958-10-24 1958-10-24 Improvements in and relating to magneto bells

Publications (1)

Publication Number Publication Date
GB834995A true GB834995A (en) 1960-05-18

Family

ID=10360630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3404158A Expired GB834995A (en) 1958-10-24 1958-10-24 Improvements in and relating to magneto bells

Country Status (1)

Country Link
GB (1) GB834995A (en)

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