GB492021A - Improvements in electromagnetic relays - Google Patents

Improvements in electromagnetic relays

Info

Publication number
GB492021A
GB492021A GB611238A GB611238A GB492021A GB 492021 A GB492021 A GB 492021A GB 611238 A GB611238 A GB 611238A GB 611238 A GB611238 A GB 611238A GB 492021 A GB492021 A GB 492021A
Authority
GB
United Kingdom
Prior art keywords
electromagnetic relays
relay
move
wheel
collyer
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
GB611238A
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.)
General Electric Company PLC
Original Assignee
General Electric Company 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 General Electric Company PLC filed Critical General Electric Company PLC
Priority to GB611238A priority Critical patent/GB492021A/en
Publication of GB492021A publication Critical patent/GB492021A/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)
  • Percussive Tools And Related Accessories (AREA)

Abstract

492,021. Electromagnetic relays. GENERAL ELECTRIC CO., Ltd., and COLLYER, J. E. April 6, 1937, No. 6112/38 Divided out of 491,980. [Class 38 (v)] A relay of the type disclosed in Specification 491,980 is constructed so that should currents of the two frequencies occur simultaneously the relay will move to or remain in one position only, e.g. the " open " position. For this purpose one of the hammers 14 has an extension 4 adapted to move a V-shaped springy member 5 so as to lift the spring 17 of its ratchet wheel 21. The oscillation of the hammer 15 will thus have a reduced effect on the rotation of its wheel 21.
GB611238A 1937-04-06 1937-04-06 Improvements in electromagnetic relays Expired GB492021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB611238A GB492021A (en) 1937-04-06 1937-04-06 Improvements in electromagnetic relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB611238A GB492021A (en) 1937-04-06 1937-04-06 Improvements in electromagnetic relays

Publications (1)

Publication Number Publication Date
GB492021A true GB492021A (en) 1938-09-13

Family

ID=9808598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB611238A Expired GB492021A (en) 1937-04-06 1937-04-06 Improvements in electromagnetic relays

Country Status (1)

Country Link
GB (1) GB492021A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757555A (en) * 1953-08-04 1956-08-07 Elgin Nat Watch Co Pawl and ratchet mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757555A (en) * 1953-08-04 1956-08-07 Elgin Nat Watch Co Pawl and ratchet mechanism

Similar Documents

Publication Publication Date Title
GB492021A (en) Improvements in electromagnetic relays
GB637617A (en) Electromagnetic relay
GB439077A (en) Improvements in or relating to mechanical interlocking devices, particularly for electric switches and contactors
GB345779A (en) Improvements in sparking plugs
GB212560A (en) Improvement in table or serving tongs
SU29227A1 (en) Obstetric compasses
USD81927S (en) of toledo
GB599780A (en) Improvements in or relating to electric switch contacts
GB537195A (en) Improvements in or relating to circuit breakers and the like electro-magnetically operated switches
GB535610A (en) Improvements in or relating to bifurcated electric contacts
GB218191A (en) Improvements in electric terminals
GB478527A (en) Improvements relating to castors
GB605422A (en) Improvements in polarised relays
CA268121A (en) Clipping hammer
AU102842B2 (en) Improvements in arc relays
GB516395A (en) Improvements relating to electric switches of the tumbler type
CA217764A (en) Hammer and hatchet
AU962027A (en) An improved letter envelope opener
GB511602A (en) Improvements relating to vehicle direction indicators
BASSETT EVERDUR AND TEMPALOY
GB525592A (en) Improvements in or relating to electric switches for alternating current circuits
Jones Letter from Alonzo Ellis Jones to Mrs. West May 10, 1946
AU164537A (en) Improvements in arc relays
Mahoney et al. When You Wore A Tulip And I Wore A Big Red Rose
Lacey The Elizabethan Children's Acting Companies