GB800366A - Improvements relating to contact arrangements for electrical switchgear - Google Patents

Improvements relating to contact arrangements for electrical switchgear

Info

Publication number
GB800366A
GB800366A GB2223954A GB2223954A GB800366A GB 800366 A GB800366 A GB 800366A GB 2223954 A GB2223954 A GB 2223954A GB 2223954 A GB2223954 A GB 2223954A GB 800366 A GB800366 A GB 800366A
Authority
GB
United Kingdom
Prior art keywords
contact
fixed contacts
support
bridging contact
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
GB2223954A
Inventor
Joseph James Holmes Hunt
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.)
Simplex Electric Co Ltd
Original Assignee
Simplex Electric 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 Simplex Electric Co Ltd filed Critical Simplex Electric Co Ltd
Priority to GB2223954A priority Critical patent/GB800366A/en
Publication of GB800366A publication Critical patent/GB800366A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2016—Bridging contacts in which the two contact pairs commutate at substantially different moments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding

Abstract

800,366. Contact members for switches. SIMPLEX ELECTRIC CO., Ltd. July 20, 1955 [July 30, 1954], No. 22239/54. Class 38 (5). A bridging contact in an electric switch moves from the general direction in which the fixed contacts face and on abutting the fixed contacts moves transversely to effect a wiping action. As shown, a bridging contact 10 is mounted on a support 19 by a screw 21 and is biased by a spring 26. The screw has a frusto-conical part 24 whose larger diameter is the same as that of the hole in order to locate the bridge when the switch is open. One fixed contact 17 is slightly inclined so that after contact has been made and the bridging contact 10 has been disengaged from the part 24, the inclined face causes it to slide downwards, wiping the fixed contacts. The part 24 recentralizes the bridge on opening the switch. Alternative arrangements include (a) both fixed contacts being inclined, (b) the part 24 forming part of the support 19, (c) the transverse movement being assisted by the bridging contact moving along an inclined pin on the support 19. Specifications 767,112, 800,364 and 800,365 are referred to.
GB2223954A 1954-07-30 1954-07-30 Improvements relating to contact arrangements for electrical switchgear Expired GB800366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2223954A GB800366A (en) 1954-07-30 1954-07-30 Improvements relating to contact arrangements for electrical switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2223954A GB800366A (en) 1954-07-30 1954-07-30 Improvements relating to contact arrangements for electrical switchgear

Publications (1)

Publication Number Publication Date
GB800366A true GB800366A (en) 1958-08-27

Family

ID=10176162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2223954A Expired GB800366A (en) 1954-07-30 1954-07-30 Improvements relating to contact arrangements for electrical switchgear

Country Status (1)

Country Link
GB (1) GB800366A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214848A2 (en) * 1985-09-06 1987-03-18 Ashley Accessories Limited Electric isolator switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214848A2 (en) * 1985-09-06 1987-03-18 Ashley Accessories Limited Electric isolator switch
EP0214848A3 (en) * 1985-09-06 1988-10-05 Ashley Accessories Limited Electric isolator switch

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