GB522493A - Improvements in or relating to ringers such as may be used in telephone subsets - Google Patents

Improvements in or relating to ringers such as may be used in telephone subsets

Info

Publication number
GB522493A
GB522493A GB3632738A GB3632738A GB522493A GB 522493 A GB522493 A GB 522493A GB 3632738 A GB3632738 A GB 3632738A GB 3632738 A GB3632738 A GB 3632738A GB 522493 A GB522493 A GB 522493A
Authority
GB
United Kingdom
Prior art keywords
armature
magnet
welded
pivot pin
cores
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
GB3632738A
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.)
FRANS VAN LAETHEM
Original Assignee
FRANS VAN LAETHEM
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 FRANS VAN LAETHEM filed Critical FRANS VAN LAETHEM
Priority to GB3632738A priority Critical patent/GB522493A/en
Publication of GB522493A publication Critical patent/GB522493A/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)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

522,493. Electric bells. STANDARD TELEPHONES & CABLES, Ltd., (Nys, L. J. G., and Laethem, F. Van). Dec. 13, 1938, No. 36327. [Class 13] The armature is secured to a rotatable member serving as its pivot after it has been adjusted relatively to the electromagnet. The armature 12 has two U-shaped extensions 16 which embrace knurled portions 15 on the pivot pin 14 which is integral with the clapper rod 17. The magnet assembly comprises a permanent magnet 1 and two parallel cores carrying coils 9, the magnet and cores being welded at one end to a yoke 4, the other end of the magnet being welded to a support 6 for the pivot pin 14. A two-part enclose for the armature comprises an apertured base member 8 and a cover 26, Fig. 4, co-operating therewith. The armature spring 18 extends parallel to the clapper rod 17, the free end engaging a slot 24 in the frame adjacent the gongs.
GB3632738A 1938-12-13 1938-12-13 Improvements in or relating to ringers such as may be used in telephone subsets Expired GB522493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3632738A GB522493A (en) 1938-12-13 1938-12-13 Improvements in or relating to ringers such as may be used in telephone subsets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3632738A GB522493A (en) 1938-12-13 1938-12-13 Improvements in or relating to ringers such as may be used in telephone subsets

Publications (1)

Publication Number Publication Date
GB522493A true GB522493A (en) 1940-06-19

Family

ID=10387122

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3632738A Expired GB522493A (en) 1938-12-13 1938-12-13 Improvements in or relating to ringers such as may be used in telephone subsets

Country Status (1)

Country Link
GB (1) GB522493A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516214A (en) * 1946-05-16 1950-07-25 Kellogg Switchboard & Supply Telephone substation ringer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516214A (en) * 1946-05-16 1950-07-25 Kellogg Switchboard & Supply Telephone substation ringer

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