GB190902733A - Improvements in Circuit Interrupters to take the Place of a Fuse in Electric Lighting and Power Installations. - Google Patents

Improvements in Circuit Interrupters to take the Place of a Fuse in Electric Lighting and Power Installations.

Info

Publication number
GB190902733A
GB190902733A GB190902733DA GB190902733A GB 190902733 A GB190902733 A GB 190902733A GB 190902733D A GB190902733D A GB 190902733DA GB 190902733 A GB190902733 A GB 190902733A
Authority
GB
United Kingdom
Prior art keywords
closed
fuse
switch
overload
pivoted
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
Inventor
James Ernest Spagnoletti
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190902733A publication Critical patent/GB190902733A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
    • H01H73/34—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset action requiring replacement or reconditioning of a fusible or explosive part

Landscapes

  • Breakers (AREA)

Abstract

2733. Spagnoletti, J. E. Feb. 4. Automatic circuit-breakers.- An automatic circuit-breaker, intended to replace the ordinary fusible cut-out, comprises a movable member 10, composed of insulating-material, which is held in the closed position, with its contacts 12, 13, which are connected by fuse wire 14, engaging contacts 8, 9 upon the fixed member, by pivoted catch 5, forming the armature of an overload magnet 3. The movable member 10 is shown pivoted to the terminal contact 9 by means of a pin 30, Fig. 5, upon the blade 13, engaging with slots in the inturned end of the contact-clip 9 ; the back of this member is engaged by a roller 19<a> upon a pivoted lever, the heavy handle 23 of which projects outside the casing so that the switch may be closed by hand. By its position the handle indicates whether the switch is closed or open. The overload magnet 3, which is held to the base by its yoke 4, has a core 26 screwed into the yoke and adjustable so that the latch 5 will be raised at predetermined overloads indicated by a pointer attached to the core ; when the latch is raised, a spring 24 opens the switch which may be closed again, only if the overload is removed. The fuse 14 is arranged to break the circuit only if the electro-magnetic device fails to act.
GB190902733D 1909-02-04 1909-02-04 Improvements in Circuit Interrupters to take the Place of a Fuse in Electric Lighting and Power Installations. Expired GB190902733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190902733T 1909-02-04

Publications (1)

Publication Number Publication Date
GB190902733A true GB190902733A (en) 1910-02-03

Family

ID=32553783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190902733D Expired GB190902733A (en) 1909-02-04 1909-02-04 Improvements in Circuit Interrupters to take the Place of a Fuse in Electric Lighting and Power Installations.

Country Status (1)

Country Link
GB (1) GB190902733A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473196A (en) * 1942-11-13 1949-06-14 Dannenberg Kurt Combined thermal-magnetic circuit breaker
US3077525A (en) * 1954-09-20 1963-02-12 Westinghouse Electric Corp Circuit interrupter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473196A (en) * 1942-11-13 1949-06-14 Dannenberg Kurt Combined thermal-magnetic circuit breaker
US3077525A (en) * 1954-09-20 1963-02-12 Westinghouse Electric Corp Circuit interrupter

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