GB633395A - Improvements in and connected with electromagnetically operated switches - Google Patents

Improvements in and connected with electromagnetically operated switches

Info

Publication number
GB633395A
GB633395A GB22584/47A GB2258447A GB633395A GB 633395 A GB633395 A GB 633395A GB 22584/47 A GB22584/47 A GB 22584/47A GB 2258447 A GB2258447 A GB 2258447A GB 633395 A GB633395 A GB 633395A
Authority
GB
United Kingdom
Prior art keywords
contacts
coil
actuated
armature
plate
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
GB22584/47A
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.)
JA Crabtree and Co Ltd
Original Assignee
JA Crabtree 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 JA Crabtree and Co Ltd filed Critical JA Crabtree and Co Ltd
Priority to GB22584/47A priority Critical patent/GB633395A/en
Priority to US43495A priority patent/US2565467A/en
Priority to US43496A priority patent/US2565468A/en
Publication of GB633395A publication Critical patent/GB633395A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts

Abstract

633,395. Electrically released switches. CRABTREE & CO., Ltd., J. A., BESAG, E., HILL, W. E., and WINTLE, T. D. G. Aug. 14, 1947, No. 22584. [Class 38 (v)] An electromagnetically-actuated 3-phase motor starter as disclosed in Specification 633,396, has in addition to the main contacts controlled by the armature, two sets of auxiliary contacts for controlling interlocking or signalling circuits and energizing the magnet coil, respectively, these contacts being actuated by a start button g and retained by the electromagnet. An insulating block a screwed to a box c containing an armature f, a magnet d and coil c<SP>1</SP>, slidably houses a plate h which carries at one end contact strips o, o<SP>1</SP> urged apart by a spring p, and is normally pushed forward by a spring n so that the strip o bridges contact pillars s in the interlocking circuit and the strip o<SP>1</SP> disengages contact pillars s<SP>1</SP> in the circuit of coil c<SP>1</SP>. When the button g is pressed, the stem g<SP>1</SP> engages a knob k on the plate h, moving it to break the contacts s and make'the contacts s<SP>1</SP>. This action energizes the coil c<SP>1</SP> so that a nose e<SP>1</SP> on the armature engages a lug h<SP>1</SP> on the plate h to keep the contacts actuated when the start button is released. The front of the block a is'stepped at t, whereby the terminals u, u<SP>1</SP> of the contacts s, s<SP>1</SP> are accessible at different levels.
GB22584/47A 1947-08-14 1947-08-14 Improvements in and connected with electromagnetically operated switches Expired GB633395A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB22584/47A GB633395A (en) 1947-08-14 1947-08-14 Improvements in and connected with electromagnetically operated switches
US43495A US2565467A (en) 1947-08-14 1948-08-10 Electromagnetically operated switch
US43496A US2565468A (en) 1947-08-14 1948-08-10 Automatic circuit breaker and similar electrical switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22584/47A GB633395A (en) 1947-08-14 1947-08-14 Improvements in and connected with electromagnetically operated switches

Publications (1)

Publication Number Publication Date
GB633395A true GB633395A (en) 1949-12-12

Family

ID=10181792

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22584/47A Expired GB633395A (en) 1947-08-14 1947-08-14 Improvements in and connected with electromagnetically operated switches

Country Status (2)

Country Link
US (2) US2565467A (en)
GB (1) GB633395A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966752C (en) * 1951-07-12 1957-09-05 Licentia Gmbh Electromagnetically operated switching device with make and break contacts
DE1018511B (en) * 1954-10-11 1957-10-31 Siemens Ag Contactor or other electromagnetic switching device
US2860206A (en) * 1956-06-25 1958-11-11 Square D Co Electromagnetic relay
US3134869A (en) * 1962-03-13 1964-05-26 Allen Bradley Co Electromagnet assembly with interfitting parts
US3215800A (en) * 1962-07-02 1965-11-02 Square D Co Electromagnetic relay and contact carrier assembly therefor
US3198910A (en) * 1962-07-11 1965-08-03 Gen Electric Electromagnetic relay having removable contact and coil assemblies
US3194920A (en) * 1964-06-23 1965-07-13 Ward Leonard Electric Co Electrical contactor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172633A (en) * 1939-09-12 Electric switch
US1016329A (en) * 1910-06-18 1912-02-06 Charles K Jones Multiple-circuit controller.
US2013013A (en) * 1934-07-16 1935-09-03 Square D Co Automatic starter
US2239031A (en) * 1936-08-24 1941-04-22 Square D Co Electric switch
US2254768A (en) * 1937-12-01 1941-09-02 Square D Co Electric switch
US2283795A (en) * 1938-04-08 1942-05-19 Arrow Hart & Hegeman Electric Electric switch construction
US2275924A (en) * 1939-04-12 1942-03-10 Gen Electric Electromagnetic device
US2261632A (en) * 1939-05-04 1941-11-04 Cutler Hammer Inc Electric circuit control mechanism
US2304972A (en) * 1939-11-24 1942-12-15 Square D Co Electric switch
GB543194A (en) * 1940-08-12 1942-02-13 Crabtree & Co Ltd J A Improvements in and connected with automatic circuit breakers and similar electric switchgear
US2433710A (en) * 1942-07-15 1947-12-30 Arrow Hart & Hegeman Electric Contact structure for electric switches
US2399575A (en) * 1943-05-06 1946-04-30 Arrow Hart & Hegeman Electric Electromagnetic switch
US2394090A (en) * 1943-11-11 1946-02-05 Gen Electric Electric switch

Also Published As

Publication number Publication date
US2565468A (en) 1951-08-28
US2565467A (en) 1951-08-28

Similar Documents

Publication Publication Date Title
GB633395A (en) Improvements in and connected with electromagnetically operated switches
GB543189A (en) Improvements in and connected with contact mechanism for automatic circuit breakers and similar electrical switchgear
GB871499A (en) Electromagnetically operable electric switches
GB576821A (en) Improvements relating to thermostatic switches for controlling electric circuits
GB837906A (en) Automatic electric cut-out
GB957088A (en) Electric switches for weak or medium currents, actuated by a removable key
GB845931A (en) Improvements in or relating to electrical switching devices for vehicles with handle-bar steering
GB978246A (en) Improvements in or relating to automatic cigarette dispensers
GB557546A (en) Improvements in electromagnetic switches
GB1437790A (en)
GB516673A (en) A contact or switch device for use in connection with electrical systems for recording the departure and/or arrival time of vehicles
GB551877A (en) Improvements in or relating to electrically controlled timing devices
GB606840A (en) Improvements relating to electromagnetic switches
GB341963A (en) Improvements in and relating to starting switches for electric motors
GB632721A (en) Improvements in and relating to electrically operated burglar alarm systems
GB838958A (en) Improvements in or relating to movable contacts for electromagnetic relays
GB596458A (en) Improvements in electric switches for flexible conductors
GB630531A (en) Improvements in or relating to instrument type relays
GB368978A (en) Improvements relating to control apparatus such as contactors and circuit breakers for alternating and direct electric current systems
GB649884A (en) Electric time switch notably for controlling signalling circuits on automobiles
GB428658A (en) Improvements in, or relating to, electric circuit-breaker systems
GB653639A (en) Improvements in or relating to telephone systems
GB209459A (en) Electric switches for use in the magnetisation of permanent magnets
GB637135A (en) An improved electromagnetic relay
GB767008A (en) Improvements in or relating to dolly-actuated electric switches for a.c. circuits