GB705342A - Alternating current ringers - Google Patents

Alternating current ringers

Info

Publication number
GB705342A
GB705342A GB8688/52A GB868852A GB705342A GB 705342 A GB705342 A GB 705342A GB 8688/52 A GB8688/52 A GB 8688/52A GB 868852 A GB868852 A GB 868852A GB 705342 A GB705342 A GB 705342A
Authority
GB
United Kingdom
Prior art keywords
armature
ringers
alternating current
april
magnetic circuit
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
GB8688/52A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB705342A publication Critical patent/GB705342A/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

705,342. Oscillating motors. STANDARD TELEPHONES & CABLES, Ltd. April 4, 1952 [April 12, 1951], No. 8688/52. Class 35. [Also in Group XXXVIII] The motor of a polarized A.C. bell comprises a permanent bar magnet 1 having one pole adjacent the central pivot 4 of the armature 3 and the other magnetically connected to both ends of the armature 3, and a coil 6 connected to an A.C. supply and creating an alternating flux in a magnetic circuit having pole pieces 15, 16 adjacent the ends of the armature. In a modification, the pole pieces 15, 16 also serve as part of the magnetic circuit of the magnet 1.
GB8688/52A 1951-04-12 1952-04-04 Alternating current ringers Expired GB705342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR705342X 1951-04-12

Publications (1)

Publication Number Publication Date
GB705342A true GB705342A (en) 1954-03-10

Family

ID=9067110

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8688/52A Expired GB705342A (en) 1951-04-12 1952-04-04 Alternating current ringers

Country Status (1)

Country Link
GB (1) GB705342A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086809B (en) * 1956-04-12 1960-08-11 Ericsson Telefon Ab L M Polarized magnet arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086809B (en) * 1956-04-12 1960-08-11 Ericsson Telefon Ab L M Polarized magnet arrangement

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