GB818172A - Improvements in or relating to electromagnetic relays - Google Patents

Improvements in or relating to electromagnetic relays

Info

Publication number
GB818172A
GB818172A GB3225054A GB3225054A GB818172A GB 818172 A GB818172 A GB 818172A GB 3225054 A GB3225054 A GB 3225054A GB 3225054 A GB3225054 A GB 3225054A GB 818172 A GB818172 A GB 818172A
Authority
GB
United Kingdom
Prior art keywords
plunger
coil
latch
spring
switch
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
GB3225054A
Inventor
Brian Jeffrey Favell
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.)
A Reyrolle and Co Ltd
Original Assignee
A Reyrolle and Co Ltd
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 A Reyrolle and Co Ltd filed Critical A Reyrolle and Co Ltd
Priority to GB3225054A priority Critical patent/GB818172A/en
Publication of GB818172A publication Critical patent/GB818172A/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
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/10—Contacts retained open or closed by a latch which is controlled by an electromagnet

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

818,172. Electrically-tripped switches; electromagnetic switches. REYROLLE & CO. Ltd., A. Nov. 7, 1955 [Nov. 8, 1954], No. 32250/54. Class 38 (5). Energization of a coil C attracts an armature A<SP>1</SP> on the upper end of a vertical shaft A towards a magnet core C<SP>2</SP> against the action of a return spring A<SP>5</SP> connected at one end to an arm A<SP>4</SP> on the shaft, whereby a number of pinlike bridging contacts D carried by spring arms A<SP>3</SP> on the shaft make or break contact with respective pairs of fixed contact pins D<SP>1</SP>, D<SP>2</SP>. The shaft A is held in its operated position on de-energization of the coil C by a projection G4 on a latch G, pivoted at G<SP>1</SP>, which moves from its normal position, Fig. 8, to its latching position, Fig. 9, under the action of a spring G3 upon movement of the arm A<SP>4</SP> to its operated position. Movement of the latch G to its latching position releases a plunger F<SP>1</SP> which drops a limited distance and locks the latch, thus preventing undesired tripping of the switch due to shock. As shown, this dropping of the plunger also de-energizes the coil C by striking a lever E<SP>3</SP> pivoted at E4 and biased by a spring E<SP>5</SP>, the lever carrying a bridging contact E co-operating with fixed contacts E<SP>1</SP> connected in the coil circuit. The switch may be electrically tripped, in which instance the plunger Fl and latch G are magnetic and the plunger is surrounded by a tripping coil F having a yoke F<SP>2</SP>, F3, energization of the coil F causing the plunger to be raised, whereupon the latch is attracted to the yoke and the arm A<SP>4</SP> is returned by the spring A<SP>6</SP>. In another construction, the yoke F<SP>2</SP>, F<SP>3</SP> is omitted and the upper end of the plunger engages the latch to trip the switch. Further, the coil F may also be omitted (Figs. 5-7, 10, 11, not shown) and the plunger raised manually by means of a handle to trip the switch.
GB3225054A 1955-11-08 1955-11-08 Improvements in or relating to electromagnetic relays Expired GB818172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3225054A GB818172A (en) 1955-11-08 1955-11-08 Improvements in or relating to electromagnetic relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3225054A GB818172A (en) 1955-11-08 1955-11-08 Improvements in or relating to electromagnetic relays

Publications (1)

Publication Number Publication Date
GB818172A true GB818172A (en) 1959-08-12

Family

ID=10335676

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3225054A Expired GB818172A (en) 1955-11-08 1955-11-08 Improvements in or relating to electromagnetic relays

Country Status (1)

Country Link
GB (1) GB818172A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022175299A1 (en) * 2021-02-16 2022-08-25 Schaltbau Gmbh Electric switching device with locking function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022175299A1 (en) * 2021-02-16 2022-08-25 Schaltbau Gmbh Electric switching device with locking function

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