GB172935A - - Google Patents

Info

Publication number: GB172935A
Authority: GB; United Kingdom
Prior art keywords: armature; spring; torque; magnetic; flux
Prior art date: 1920-12-12
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

GB2901021A

Other languages

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.)

1920-12-12

Filing date

1921-11-01

Publication date

1923-02-01

1921-11-01 Application filed filed Critical

1923-02-01 Publication of GB172935A publication Critical patent/GB172935A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Electromagnets (AREA)

GB2901021A 1920-12-12 1921-11-01 Expired GB172935A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DES54994D DE371626C (de)	1920-12-12	1920-12-12	Ruhestromrelais, bei dem bei voruebergehenden Stromunterbrechungen ein dauerndes Abfallen des Ankers eintritt
US522116A US1426993A (en)	1920-12-12	1921-12-13	Closed-circuit relay

Publications (1)

Publication Number	Publication Date
GB172935A true GB172935A (fr)	1923-02-01

Family

ID=25995426

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB2901021A Expired GB172935A (fr)	1920-12-12	1921-11-01

Country Status (4)

Country	Link
US (1)	US1426993A (fr)
DE (1)	DE371626C (fr)
FR (1)	FR542963A (fr)
GB (1)	GB172935A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2455049A (en) *		1948-11-30		Shockpkoof electromagnetic
US2424308A (en) *	1942-09-15	1947-07-22	Westinghouse Electric Corp	Contactor
US2553478A (en) *	1944-10-26	1951-05-15	Arrow Hart & Hegeman Electric	Rotary electromagnetic transfer switch
US2619563A (en) *	1945-08-07	1952-11-25	Kesselring Fritz	Electromagnetic control device
BE471339A (fr) *	1946-02-23
US2549323A (en) *	1948-11-15	1951-04-17	Mcmullen Elvin	Automatic electromagnetic switch
NL178634B (nl) *	1952-05-29		Philips Nv	Inrichting voor het detecteren van ongewenste signaalcombinaties van twee signaallampen bij verkeerslichten.
NL183132B (nl) *	1954-01-25		Greiner Kg	Stapelbare sluithuls, alsmede combinatie van een magazijn gevuld met dergelijke sluithulzen.
DE1126994B (de) *	1958-03-22	1962-04-05	Electro Entpr L	Drehanker-Elektromagnet
US4814428A (en) *	1987-06-04	1989-03-21	General Electric Company	Method of increasing the thermal stability of cyclic carbonate oligomers

1920
- 1920-12-12 DE DES54994D patent/DE371626C/de not_active Expired
1921
- 1921-11-01 GB GB2901021A patent/GB172935A/en not_active Expired
- 1921-11-02 FR FR542963D patent/FR542963A/fr not_active Expired
- 1921-12-13 US US522116A patent/US1426993A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE371626C (de)	1923-03-17
US1426993A (en)	1922-08-22
FR542963A (fr)	1922-08-24

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