GB201788A - Automatic circuit breaking device - Google Patents

Automatic circuit breaking device

Info

Publication number
GB201788A
GB201788A GB2316622A GB2316622A GB201788A GB 201788 A GB201788 A GB 201788A GB 2316622 A GB2316622 A GB 2316622A GB 2316622 A GB2316622 A GB 2316622A GB 201788 A GB201788 A GB 201788A
Authority
GB
United Kingdom
Prior art keywords
rod
contact
fuze
circuits
causes
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
GB2316622A
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.)
Individual
Original Assignee
Individual
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
Priority to DEE27233D priority Critical patent/DE383145C/en
Priority to NL11835D priority patent/NL11835C/xx
Priority to US576095A priority patent/US1434344A/en
Application filed by Individual filed Critical Individual
Priority to GB2316622A priority patent/GB201788A/en
Publication of GB201788A publication Critical patent/GB201788A/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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/20—Electrothermal mechanisms with fusible mass

Landscapes

  • Fuses (AREA)

Abstract

201,788. Johnson, E. Aug. 25, 1922. Automatic circuit-breakers for three-phase currents are constructed with fuzes in two of the circuits so that the blowing of one or both of them causes the automatic opening of a switch in the third circuit. The pivoted switch arm 7 is normally pressed by a weak spring 8 into contact with the fixed contact 9; and the circuits for the other two phases are normally closed by means of members 1 and 3. Should one of the fuze rods 5 melt, the member 3 corresponding to it is pulled back by a strong spring 6, and, bearing against a bar 10 fixed to the switch arm 7, overcomes the weak spring 8 and causes the arm 7 to break contact. For small currents, the current may be led along a resistance wire wound round the rod 1, thereby heating the rod 1 and melting the fuze rod.
GB2316622A 1922-07-19 1922-08-25 Automatic circuit breaking device Expired GB201788A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DEE27233D DE383145C (en) 1922-08-25 Electric fuse switch for direct and multi-phase current with fuses acting on a tripping device for the switch
NL11835D NL11835C (en) 1922-08-25
US576095A US1434344A (en) 1922-07-19 1922-07-19 Automatic circuit-breaking device
GB2316622A GB201788A (en) 1922-08-25 1922-08-25 Automatic circuit breaking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2316622A GB201788A (en) 1922-08-25 1922-08-25 Automatic circuit breaking device

Publications (1)

Publication Number Publication Date
GB201788A true GB201788A (en) 1923-08-09

Family

ID=10191229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2316622A Expired GB201788A (en) 1922-07-19 1922-08-25 Automatic circuit breaking device

Country Status (2)

Country Link
GB (1) GB201788A (en)
NL (1) NL11835C (en)

Also Published As

Publication number Publication date
NL11835C (en)

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