GB806428A - Improvements in or relating to polarized electromagnetic devices - Google Patents

Improvements in or relating to polarized electromagnetic devices

Info

Publication number
GB806428A
GB806428A GB992157A GB992157A GB806428A GB 806428 A GB806428 A GB 806428A GB 992157 A GB992157 A GB 992157A GB 992157 A GB992157 A GB 992157A GB 806428 A GB806428 A GB 806428A
Authority
GB
United Kingdom
Prior art keywords
armature
relating
polepieces
poles
march
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
GB992157A
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40546051&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB806428(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of GB806428A publication Critical patent/GB806428A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/003—Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2236—Polarised relays comprising pivotable armature, pivoting at extremity or bending point of armature

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)
  • Electromagnets (AREA)

Abstract

806,428. Electromagnets. VIGREN, S. D., ZANDER, R. A., and CLAESSON, P. H. E. March 26, 1957 [March 29, 1956 ; Jan. 31, 1957], No. 9921/57. Class 35. [Also in Groups XXXVII and XXXIX] An electromagnetic device such as a polarized relay or telephone receiver has an energizing coil 16 surrounding an armature 15 pivoted by means of torsion arms 19, 20 adjacent to a permanent magnet 12. The latter is mounted between two polepieces 13, 14 having poles 17, 18 on either side of the armature at the end remote from its pivot so that the coil is between the air gap between the poles and the pivotal axis of the armature and the flux from the armature to the polepieces must pass through the permanent magnet. In a relay (not shown), the armature inertia may be balanced by contact actuating arms on the other side of the pivotal axis.
GB992157A 1956-03-29 1957-03-26 Improvements in or relating to polarized electromagnetic devices Expired GB806428A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE316856 1956-03-29
SE93757 1957-01-31

Publications (1)

Publication Number Publication Date
GB806428A true GB806428A (en) 1958-12-23

Family

ID=40546051

Family Applications (1)

Application Number Title Priority Date Filing Date
GB992157A Expired GB806428A (en) 1956-03-29 1957-03-26 Improvements in or relating to polarized electromagnetic devices

Country Status (3)

Country Link
DE (1) DE1276105B (en)
FR (1) FR1174054A (en)
GB (1) GB806428A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1299039B (en) * 1966-04-19 1969-07-10 Indian Telephone Ind Ltd Doora Electromagnetic vibrating device
US7376237B2 (en) 2004-09-02 2008-05-20 Oticon A/S Vibrator for bone-conduction hearing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE511229C (en) * 1927-12-30 1930-10-27 Fein Maschb Ges M B H Device for supporting the balanced drive armature of electromagnetic loudspeakers
DE943411C (en) * 1940-06-27 1956-05-17 Eugen Beyer Moving coil microphone
FR963909A (en) * 1947-06-06 1950-07-26
BE500297A (en) * 1951-10-31
US2692918A (en) * 1952-07-09 1954-10-26 Samuel I Berger Magnetic sound powered telephone
CH326617A (en) * 1953-10-23 1957-12-31 Tesla Np Sound reproduction device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1299039B (en) * 1966-04-19 1969-07-10 Indian Telephone Ind Ltd Doora Electromagnetic vibrating device
US7376237B2 (en) 2004-09-02 2008-05-20 Oticon A/S Vibrator for bone-conduction hearing

Also Published As

Publication number Publication date
FR1174054A (en) 1959-03-05
DE1276105B (en) 1968-08-29

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