GB662917A - An improved resonant relay - Google Patents

An improved resonant relay

Info

Publication number
GB662917A
GB662917A GB27725/49A GB2772549A GB662917A GB 662917 A GB662917 A GB 662917A GB 27725/49 A GB27725/49 A GB 27725/49A GB 2772549 A GB2772549 A GB 2772549A GB 662917 A GB662917 A GB 662917A
Authority
GB
United Kingdom
Prior art keywords
magnet
shaft
spring
limb
electromagnet
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
GB27725/49A
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Publication of GB662917A publication Critical patent/GB662917A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/30—Electromagnetic relays specially adapted for actuation by ac
    • H01H51/32—Frequency relays; Mechanically-tuned relays
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/48—Coupling means therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

662,917. Electromagnetic switches. LANDIS & GYR SOC. ANON. Oct. 28, 1949. [Nov. 11, 1948] No. 27725/49. Class 38 (v). [Also in Group XL (b)] A switch is operated by a unit including two U-shaped leaf springs 1 and 2 which are tuned to different frequencies of vibration and are secured to a supporting plate (not shown) through holes 3 and 4. Members 5, 6 and 7 project from the supporting plate and carry an electromagnet 8, shown largely broken away. One limb of each spring vibrates in an air gap of this magnet, either 13 or 14. A permanent flux is also maintained in the magnetic circuit by magnets 25 and 26. When electric oscillations of the frequency of either vibrating spring occur in a circuit connected to magnet 8 resonance is set up and the oscillations of the limb not in the magnet gap become sufficient to operate a ratchet and pawl mechanism. As shown in Fig. 2 the mechanism 19 associated with one spring drives a shaft 15 in one direction and the mechanism 18 associated with the other spring drives shaft 15 in reverse. Thus electric contacts 23 may be opened or closed by a cam 20 on shaft 15 according as to which resonant frequency is transmitted by a signalling system to electromagnet 8.
GB27725/49A 1948-11-11 1949-10-28 An improved resonant relay Expired GB662917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH662917X 1948-11-11

Publications (1)

Publication Number Publication Date
GB662917A true GB662917A (en) 1951-12-12

Family

ID=4527056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27725/49A Expired GB662917A (en) 1948-11-11 1949-10-28 An improved resonant relay

Country Status (4)

Country Link
DE (1) DE854228C (en)
FR (1) FR989893A (en)
GB (1) GB662917A (en)
NL (1) NL76872C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL93661C (en) * 1954-12-20
BE544673A (en) * 1955-04-13
CH350051A (en) * 1957-05-25 1960-11-15 Zellweger Uster Ag Electromechanical belt filter
CH571291A5 (en) * 1972-06-12 1975-12-31 Elresor Sa

Also Published As

Publication number Publication date
FR989893A (en) 1951-09-14
DE854228C (en) 1952-10-30
NL76872C (en)

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