GB783255A - Improvements in or relating to tuning-fork relays - Google Patents

Improvements in or relating to tuning-fork relays

Info

Publication number
GB783255A
GB783255A GB13905/56A GB1390556A GB783255A GB 783255 A GB783255 A GB 783255A GB 13905/56 A GB13905/56 A GB 13905/56A GB 1390556 A GB1390556 A GB 1390556A GB 783255 A GB783255 A GB 783255A
Authority
GB
United Kingdom
Prior art keywords
tuning
fork
prongs
coils
relays
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
GB13905/56A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens 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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB783255A publication Critical patent/GB783255A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

783,255. Electromagnetic interrupters. SIEMENS & HALSKE AKT.-GES. May 4, 1956 [May 7, 1955], No. 13905/56. Class 38 (5). A relay comprises four tuning forks 9 (only one shown in Fig. 1) having prongs 9a, 9b and mounted between insulating plates 11, 12. The forks have different frequencies and each pair of prongs straddles one end of a T-shaped polepiece 5 or 6, the polepieces being mounted at opposite ends of a permanent magnet 4 and being energized, respectively, by coils 7, 8. The coils may be selectively energized by a switch or be serially connected and produce a combined flux through the magnet 4. Each fork together with its contact arrangement 10 forms a constructional sub-unit.
GB13905/56A 1955-05-07 1956-05-04 Improvements in or relating to tuning-fork relays Expired GB783255A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE343029X 1955-05-07

Publications (1)

Publication Number Publication Date
GB783255A true GB783255A (en) 1957-09-18

Family

ID=6243285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13905/56A Expired GB783255A (en) 1955-05-07 1956-05-04 Improvements in or relating to tuning-fork relays

Country Status (4)

Country Link
BE (1) BE547586A (en)
CH (1) CH343029A (en)
FR (1) FR1149090A (en)
GB (1) GB783255A (en)

Also Published As

Publication number Publication date
FR1149090A (en) 1957-12-19
CH343029A (en) 1959-12-15
BE547586A (en)

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