GB916612A - Improvements in or relating to safety fuse units - Google Patents

Improvements in or relating to safety fuse units

Info

Publication number
GB916612A
GB916612A GB3745959A GB3745959A GB916612A GB 916612 A GB916612 A GB 916612A GB 3745959 A GB3745959 A GB 3745959A GB 3745959 A GB3745959 A GB 3745959A GB 916612 A GB916612 A GB 916612A
Authority
GB
United Kingdom
Prior art keywords
pin
nov
relating
electrically
helical spring
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
GB3745959A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB916612A publication Critical patent/GB916612A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements
    • H01H85/306—Movable indicating elements acting on an auxiliary switch or contact

Landscapes

  • Fuses (AREA)

Abstract

916,612. Electrically released switches. TELEFONAKTIEBOLAGET L. M. ERICSSON. Nov. 4, 1959 [Nov. 14, 1958], No. 37459/59. Class 38 (5). [Also in Group XXXVI] In an electrically released switch, resilient portions 11, 12 on pin contacts 7b, 8a are mechanically connected and spring-urged towards an inflexible contact 8b. They are held in the position shown in Fig. 3 by a fuse wire 13 connected between the pin 7b and an inflexible contact-pin 7a. When the fuse blows, the portion 12 electrically engages the pin 8b to complete an alarm circuit and the link 18 moves from a position where it was visible through a transparent portion 22. Portion 11 comprises a helical spring 20 soldered to the pin 7b and to a rigid portion mounted on a lug 19, and portion 12 also comprises a helical spring. The casing comprises two parts having finger grips.
GB3745959A 1958-11-14 1959-11-04 Improvements in or relating to safety fuse units Expired GB916612A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1055258 1958-11-14

Publications (1)

Publication Number Publication Date
GB916612A true GB916612A (en) 1963-01-23

Family

ID=20292505

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3745959A Expired GB916612A (en) 1958-11-14 1959-11-04 Improvements in or relating to safety fuse units

Country Status (1)

Country Link
GB (1) GB916612A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114121387A (en) * 2021-11-29 2022-03-01 广东电网有限责任公司 Device capable of automatically displaying insulator insulation breakdown

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114121387A (en) * 2021-11-29 2022-03-01 广东电网有限责任公司 Device capable of automatically displaying insulator insulation breakdown
CN114121387B (en) * 2021-11-29 2024-04-30 广东电网有限责任公司 Device capable of automatically displaying insulator insulation breakdown

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